diff options
Diffstat (limited to 'nuttx/libc/spawn')
| -rw-r--r-- | nuttx/libc/spawn/Make.defs | 65 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_ps.c | 623 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_dump.c | 127 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_getflags.c | 72 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_getschedparam.c | 74 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_getschedpolicy.c | 73 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_getsigmask.c | 78 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_init.c | 93 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_setflags.c | 71 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_setschedparam.c | 74 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_setschedpolicy.c | 72 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psa_setsigmask.c | 79 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_addaction.c | 91 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_addclose.c | 100 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_adddup2.c | 104 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_addopen.c | 119 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_destroy.c | 96 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_dump.c | 129 | ||||
| -rw-r--r-- | nuttx/libc/spawn/lib_psfa_init.c | 70 | ||||
| -rw-r--r-- | nuttx/libc/spawn/spawn.h | 121 |
20 files changed, 2331 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/Make.defs b/nuttx/libc/spawn/Make.defs new file mode 100644 index 000000000..99ee781ce --- /dev/null +++ b/nuttx/libc/spawn/Make.defs @@ -0,0 +1,65 @@ +############################################################################ +# libc/spawn/Make.defs +# +# Copyright (C) 2013 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt <gnutt@nuttx.org> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +# Add the spawn C files to the build + +ifeq ($(CONFIG_LIBC_EXECFUNCS),y) + +CSRCS += lib_ps.c + +CSRCS += lib_psfa_addaction.c lib_psfa_addclose.c lib_psfa_adddup2.c +CSRCS += lib_psfa_addopen.c lib_psfa_destroy.c lib_psfa_init.c + +ifeq ($(CONFIG_DEBUG),y) +CSRCS += lib_psfa_dump.c +endif + +CSRCS += lib_psa_getflags.c lib_psa_getschedparam.c lib_psa_getschedpolicy.c +CSRCS += lib_psa_init.c lib_psa_setflags.c lib_psa_setschedparam.c +CSRCS += lib_psa_setschedpolicy.c + +ifneq ($(CONFIG_DISABLE_SIGNALS),y) +CSRCS += lib_psa_getsigmask.c lib_psa_setsigmask.c +endif + +ifeq ($(CONFIG_DEBUG),y) +CSRCS += lib_psa_dump.c +endif + +# Add the spawn directory to the build + +DEPPATH += --dep-path spawn +VPATH += :spawn +endif diff --git a/nuttx/libc/spawn/lib_ps.c b/nuttx/libc/spawn/lib_ps.c new file mode 100644 index 000000000..638b27f87 --- /dev/null +++ b/nuttx/libc/spawn/lib_ps.c @@ -0,0 +1,623 @@ +/**************************************************************************** + * libc/string/lib_ps.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <semaphore.h> +#include <signal.h> +#include <sched.h> +#include <fcntl.h> +#include <spawn.h> +#include <errno.h> +#include <assert.h> +#include <debug.h> + +#include <nuttx/binfmt/binfmt.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct spawn_parms_s +{ + int result; + FAR pid_t *pid; + FAR const char *path; + FAR const posix_spawn_file_actions_t *file_actions; + FAR const posix_spawnattr_t *attr; + FAR char *const *argv; +}; + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static sem_t g_ps_parmsem = SEM_INITIALIZER(1); +static sem_t g_ps_execsem = SEM_INITIALIZER(0); +static struct spawn_parms_s g_ps_parms; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ps_semtake and ps_semgive + * + * Description: + * Give and take semaphores + * + * Input Parameters: + * + * sem - The semaphore to act on. + * + * Returned Value: + * None + * + ****************************************************************************/ + +static void ps_semtake(FAR sem_t *sem) +{ + int ret; + + do + { + ret = sem_wait(sem); + ASSERT(ret == 0 || errno == EINTR); + } + while (ret != 0); +} + +#define ps_semgive(sem) sem_post(sem) + +/**************************************************************************** + * Name: ps_exec + * + * Description: + * Execute the task from the file system. + * + * Input Parameters: + * + * pidp - Upon successful completion, this will return the task ID of the + * child task in the variable pointed to by a non-NULL 'pid' argument.| + * + * path - The 'path' argument identifies the file to execute. If + * CONFIG_BINFMT_EXEPATH is defined, this may be either a relative or + * or an absolute path. Otherwise, it must be an absolute path. + * + * attr - If the value of the 'attr' parameter is NULL, the all default + * values for the POSIX spawn attributes will be used. Otherwise, the + * attributes will be set according to the spawn flags. The + * following spawn flags are supported: + * + * - POSIX_SPAWN_SETSCHEDPARAM: Set new tasks priority to the sched_param + * value. + * - POSIX_SPAWN_SETSCHEDULER: Set the new tasks scheduler priority to + * the sched_policy value. + * + * NOTE: POSIX_SPAWN_SETSIGMASK is handled in ps_proxy(). + * + * argv - argv[] is the argument list for the new task. argv[] is an + * array of pointers to null-terminated strings. The list is terminated + * with a null pointer. + * + * Returned Value: + * This function will return zero on success. Otherwise, an error number + * will be returned as the function return value to indicate the error. + * This errno value may be that set by execv(), sched_setpolicy(), or + * sched_setparam(). + * + ****************************************************************************/ + +static int ps_exec(FAR pid_t *pidp, FAR const char *path, + FAR const posix_spawnattr_t *attr, + FAR char *const argv[]) +{ + struct sched_param param; + FAR const struct symtab_s *symtab; + int nsymbols; + int pid; + int ret = OK; + + DEBUGASSERT(path); + + /* Get the current symbol table selection */ + + exec_getsymtab(&symtab, &nsymbols); + + /* Disable pre-emption so that we can modify the task parameters after + * we start the new task; the new task will not actually begin execution + * until we re-enable pre-emption. + */ + + sched_lock(); + + /* Start the task */ + + pid = exec(path, (FAR const char **)argv, symtab, nsymbols); + if (pid < 0) + { + ret = errno; + sdbg("ERROR: exec failed: %d\n", ret); + goto errout; + } + + /* Return the task ID to the caller */ + + if (pid) + { + *pidp = pid; + } + + /* Now set the attributes. Note that we ignore all of the return values + * here because we have already successfully started the task. If we + * return an error value, then we would also have to stop the task. + */ + + if (attr) + { + /* If we are only setting the priority, then call sched_setparm() + * to set the priority of the of the new task. + */ + + if ((attr->flags & POSIX_SPAWN_SETSCHEDPARAM) != 0) + { + /* Get the priority from the attrributes */ + + param.sched_priority = attr->priority; + + /* If we are setting *both* the priority and the scheduler, + * then we will call sched_setscheduler() below. + */ + + if ((attr->flags & POSIX_SPAWN_SETSCHEDULER) == 0) + { + svdbg("Setting priority=%d for pid=%d\n", + param.sched_priority, pid); + + (void)sched_setparam(pid, ¶m); + } + } + + /* If we are only changing the scheduling policy, then reset + * the priority to the default value (the same as this thread) in + * preparation for the sched_setscheduler() call below. + */ + + else if ((attr->flags & POSIX_SPAWN_SETSCHEDULER) != 0) + { + (void)sched_getparam(0, ¶m); + } + + /* Are we setting the scheduling policy? If so, use the priority + * setting determined above. + */ + + if ((attr->flags & POSIX_SPAWN_SETSCHEDULER) != 0) + { + svdbg("Setting policy=%d priority=%d for pid=%d\n", + attr->policy, param.sched_priority, pid); + + (void)sched_setscheduler(pid, attr->policy, ¶m); + } + } + + /* Re-enable pre-emption and return */ + +errout: + sched_unlock(); + return OK; +} + +/**************************************************************************** + * Name: spawn_close, spawn_dup2, and spawn_open + * + * Description: + * Implement individual file actions + * + * Input Parameters: + * action - describes the action to be performed + * + * Returned Value: + * posix_spawn() and posix_spawnp() will return zero on success. + * Otherwise, an error number will be returned as the function return + * value to indicate the error. + * + ****************************************************************************/ + +static inline int spawn_close(FAR struct spawn_close_file_action_s *action) +{ + /* The return value from close() is ignored */ + + svdbg("Closing fd=%d\n", action->fd); + + (void)close(action->fd); + return OK; +} + +static inline int spawn_dup2(FAR struct spawn_dup2_file_action_s *action) +{ + int ret; + + /* Perform the dup */ + + svdbg("Dup'ing %d->%d\n", action->fd1, action->fd2); + + ret = dup2(action->fd1, action->fd2); + if (ret < 0) + { + int errcode = errno; + + sdbg("ERROR: dup2 failed: %d\n", errcode); + return errcode; + } + + return OK; +} + +static inline int spawn_open(FAR struct spawn_open_file_action_s *action) +{ + int fd; + int ret = OK; + + /* Open the file */ + + svdbg("Open'ing path=%s oflags=%04x mode=%04x\n", + action->path, action->oflags, action->mode); + + fd = open(action->path, action->oflags, action->mode); + if (fd < 0) + { + ret = errno; + sdbg("ERROR: open failed: %d\n", ret); + } + + /* Does the return file descriptor happen to match the required file + * desciptor number? + */ + + else if (fd != action->fd) + { + /* No.. dup2 to get the correct file number */ + + svdbg("Dup'ing %d->%d\n", fd, action->fd); + + ret = dup2(fd, action->fd); + if (ret < 0) + { + ret = errno; + sdbg("ERROR: dup2 failed: %d\n", ret); + } + + svdbg("Closing fd=%d\n", fd); + close(fd); + } + + return ret; +} + +/**************************************************************************** + * Name: spawn_proxy + * + * Description: + * Perform file_actions, then execute the task from the file system. + * + * Input Parameters: + * Standard task start-up parameters + * + * Returned Value: + * Standard task return value. + * + ****************************************************************************/ + +static int spawn_proxy(int argc, char *argv[]) +{ + FAR struct spawn_general_file_action_s *entry; + FAR const posix_spawnattr_t *attr = g_ps_parms.attr; + int ret = OK; + + /* Perform file actions and/or set a custom signal mask. We get here only + * if the file_actions parameter to posix_spawn[p] was non-NULL and/or the + * option to change the signal mask was selected. + */ + +#ifndef CONFIG_DISABLE_SIGNALS + DEBUGASSERT((g_ps_parms.file_actions && *g_ps_parms.file_actions) || + (attr && (attr->flags & POSIX_SPAWN_SETSIGMASK) != 0)); +#else + DEBUGASSERT(g_ps_parms.file_actions && *g_ps_parms.file_actions); +#endif + + /* Check if we need to change the signal mask */ + +#ifndef CONFIG_DISABLE_SIGNALS + if (attr && (attr->flags & POSIX_SPAWN_SETSIGMASK) != 0) + { + (void)sigprocmask(SIG_SETMASK, &attr->sigmask, NULL); + } + + /* Were we also requested to perform file actions? */ + + if (g_ps_parms.file_actions) +#endif + { + /* Execute each file action */ + + for (entry = (FAR struct spawn_general_file_action_s *)*g_ps_parms.file_actions; + entry && ret == OK; + entry = entry->flink) + { + switch (entry->action) + { + case SPAWN_FILE_ACTION_CLOSE: + ret = spawn_close((FAR struct spawn_close_file_action_s *)entry); + break; + + case SPAWN_FILE_ACTION_DUP2: + ret = spawn_dup2((FAR struct spawn_dup2_file_action_s *)entry); + break; + + case SPAWN_FILE_ACTION_OPEN: + ret = spawn_open((FAR struct spawn_open_file_action_s *)entry); + break; + + case SPAWN_FILE_ACTION_NONE: + default: + sdbg("ERROR: Unknown action: %d\n", entry->action); + ret = EINVAL; + break; + } + } + } + + /* Check for failures */ + + if (ret == OK) + { + /* Start the task */ + + ret = ps_exec(g_ps_parms.pid, g_ps_parms.path, attr, g_ps_parms.argv); + } + + /* Post the semaphore to inform the parent task that we have completed + * what we need to do. + */ + + g_ps_parms.result = ret; + ps_semgive(&g_ps_execsem); + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn + * + * Description: + * The posix_spawn() and posix_spawnp() functions will create a new, + * child task, constructed from a regular executable file. + * + * Input Parameters: + * + * pid - Upon successful completion, posix_spawn() and posix_spawnp() will + * return the task ID of the child task to the parent task, in the + * variable pointed to by a non-NULL 'pid' argument. If the 'pid' + * argument is a null pointer, the process ID of the child is not + * returned to the caller. + * + * path - The 'path' argument to posix_spawn() is the absolute path that + * identifies the file to execute. The 'path' argument to posix_spawnp() + * may also be a relative path and will be used to construct a pathname + * that identifies the file to execute. In the case of a relative path, + * the path prefix for the file will be obtained by a search of the + * directories passed as the environment variable PATH. + * + * NOTE: NuttX provides only one implementation: If + * CONFIG_BINFMT_EXEPATH is defined, then only posix_spawnp() behavior + * is supported; otherwise, only posix_spawn behavior is supported. + * + * file_actions - If 'file_actions' is a null pointer, then file + * descriptors open in the calling process will remain open in the + * child process (unless CONFIG_FDCLONE_STDIO is defined). If + * 'file_actions' is not NULL, then the file descriptors open in the + * child process will be those open in the calling process as modified + * by the spawn file actions object pointed to by file_actions. + * + * attr - If the value of the 'attr' parameter is NULL, the all default + * values for the POSIX spawn attributes will be used. Otherwise, the + * attributes will be set according to the spawn flags. The + * posix_spawnattr_t spawn attributes object type is defined in spawn.h. + * It will contains these attributes, not all of which are supported by + * NuttX: + * + * - POSIX_SPAWN_SETPGROUP: Setting of the new task's process group is + * not supported. NuttX does not support process groups. + * - POSIX_SPAWN_SETSCHEDPARAM: Set new tasks priority to the sched_param + * value. + * - POSIX_SPAWN_SETSCHEDULER: Set the new task's scheduler policy to + * the sched_policy value. + * - POSIX_SPAWN_RESETIDS: Resetting of the effective user ID of the child + * process is not supported. NuttX does not support effective user + * IDs. + * - POSIX_SPAWN_SETSIGMASK: Set the new task's signal mask. + * - POSIX_SPAWN_SETSIGDEF: Resetting signal default actions is not + * supported. NuttX does not support default signal actions. + * + * argv - argv[] is the argument list for the new task. argv[] is an + * array of pointers to null-terminated strings. The list is terminated + * with a null pointer. + * + * envp - The envp[] argument is not used by NuttX and may be NULL. In + * standard implementations, envp[] is an array of character pointers to + * null-terminated strings that provide the environment for the new + * process image. The environment array is terminated by a null pointer. + * In NuttX, the envp[] argument is ignored and the new task will simply + * inherit the environment of the parent task. + * + * Returned Value: + * posix_spawn() and posix_spawnp() will return zero on success. + * Otherwise, an error number will be returned as the function return + * value to indicate the error: + * + * - EINVAL: The value specified by 'file_actions' or 'attr' is invalid. + * - Any errors that might have been return if vfork() and excec[l|v]() + * had been called. + * + * Assumptions/Limitations: + * - NuttX provides only posix_spawn() or posix_spawnp() behavior + * depending upon the setting of CONFIG_BINFMT_EXEPATH: If + * CONFIG_BINFMT_EXEPATH is defined, then only posix_spawnp() behavior + * is supported; otherwise, only posix_spawn behavior is supported. + * - The 'envp' argument is not used and the 'environ' variable is not + * altered (NuttX does not support the 'environ' variable). + * - Process groups are not supported (POSIX_SPAWN_SETPGROUP). + * - Effective user IDs are not supported (POSIX_SPAWN_RESETIDS). + * - Signal default actions cannot be modified in the newly task executed + * because NuttX does not support default signal actions + * (POSIX_SPAWN_SETSIGDEF). + * + * POSIX Compatibility + * - The value of the argv[0] received by the child task is assigned by + * NuttX. For the caller of posix_spawn(), the provided argv[0] will + * correspond to argv[1] received by the new task. + * + ****************************************************************************/ + +#ifdef CONFIG_BINFMT_EXEPATH +int posix_spawnp(FAR pid_t *pid, FAR const char *path, + FAR const posix_spawn_file_actions_t *file_actions, + FAR const posix_spawnattr_t *attr, + FAR char *const argv[], FAR char *const envp[]) +#else +int posix_spawn(FAR pid_t *pid, FAR const char *path, + FAR const posix_spawn_file_actions_t *file_actions, + FAR const posix_spawnattr_t *attr, + FAR char *const argv[], FAR char *const envp[]) +#endif +{ + struct sched_param param; + pid_t proxy; + int ret; + + DEBUGASSERT(path); + + svdbg("pid=%p path=%s file_actions=%p attr=%p argv=%p\n", + pid, path, file_actions, attr, argv); + + /* If there are no file actions to be performed and there is no change to + * the signal mask, then start the new child task directly from the parent task. + */ + +#ifndef CONFIG_DISABLE_SIGNALS + if ((file_actions == NULL || *file_actions == NULL) && + (attr == NULL || (attr->flags & POSIX_SPAWN_SETSIGMASK) == 0)) +#else + if (file_actions == NULL || *file_actions == NULL) +#endif + { + return ps_exec(pid, path, attr, argv); + } + + /* Otherwise, we will have to go through an intermediary/proxy task in order + * to perform the I/O redirection. This would be a natural place to fork(). + * However, true fork() behavior requires an MMU and most implementations + * of vfork() are not capable of these operations. + * + * Even without fork(), we can still do the job, but parameter passing is + * messier. Unfortunately, there is no (clean) way to pass binary values + * as a task parameter, so we will use a semaphore-protected global + * structure. + */ + + /* Get exclusive access to the global parameter structure */ + + ps_semtake(&g_ps_parmsem); + + /* Populate the parameter structure */ + + g_ps_parms.result = ENOSYS; + g_ps_parms.pid = pid; + g_ps_parms.path = path; + g_ps_parms.file_actions = file_actions; + g_ps_parms.attr = attr; + g_ps_parms.argv = argv; + + /* Get the priority of this (parent) task */ + + ret = sched_getparam(0, ¶m); + if (ret < 0) + { + int errcode = errno; + + sdbg("ERROR: sched_getparam failed: %d\n", errcode); + ps_semgive(&g_ps_parmsem); + return errcode; + } + + /* Start the intermediary/proxy task at the same priority as the parent task. */ + + proxy = TASK_CREATE("spawn_proxy", param.sched_priority, + CONFIG_POSIX_SPAWN_STACKSIZE, (main_t)spawn_proxy, + (FAR const char **)NULL); + if (proxy < 0) + { + int errcode = errno; + + sdbg("ERROR: Failed to start spawn_proxy: %d\n", errcode); + ps_semgive(&g_ps_parmsem); + return errcode; + } + + /* Wait for the proxy to complete its job */ + + ps_semtake(&g_ps_execsem); + + /* Get the result and relinquish our access to the parameter structure */ + + ret = g_ps_parms.result; + ps_semgive(&g_ps_parmsem); + return ret; +} diff --git a/nuttx/libc/spawn/lib_psa_dump.c b/nuttx/libc/spawn/lib_psa_dump.c new file mode 100644 index 000000000..03770c6ff --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_dump.c @@ -0,0 +1,127 @@ +/**************************************************************************** + * libc/string/lib_psa_dump.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <debug.h> + +#ifdef CONFIG_DEBUG + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_dump + * + * Description: + * Show the current attributes. + * + * Input Parameters: + * attr - The address of the spawn attributes to be dumped. + * + * Returned Value: + * None + * + ****************************************************************************/ + +void posix_spawnattr_dump(posix_spawnattr_t *attr) +{ + dbg("attr[%p]:\n", attr); + dbg(" flags: %04x\n", attr->flags); + if (attr->flags == 0) + { + dbg(" None\n"); + } + else + { + if ((attr->flags & POSIX_SPAWN_RESETIDS) != 0) + { + dbg(" POSIX_SPAWN_RESETIDS\n"); + } + + if ((attr->flags & POSIX_SPAWN_SETPGROUP) != 0) + { + dbg(" POSIX_SPAWN_SETPGROUP\n"); + } + + if ((attr->flags & POSIX_SPAWN_SETSCHEDPARAM) != 0) + { + dbg(" POSIX_SPAWN_SETSCHEDPARAM\n"); + } + + if ((attr->flags & POSIX_SPAWN_SETSCHEDULER) != 0) + { + dbg(" POSIX_SPAWN_SETSCHEDULER\n"); + } + + if ((attr->flags & POSIX_SPAWN_SETSIGDEF) != 0) + { + dbg(" POSIX_SPAWN_SETSIGDEF\n"); + } + + if ((attr->flags & POSIX_SPAWN_SETSIGMASK) != 0) + { + dbg(" POSIX_SPAWN_SETSIGMASK\n"); + } + } + + dbg(" priority: %d\n", attr->priority); + + dbg(" policy: %d\n", attr->policy); + if (attr->policy == SCHED_FIFO) + { + dbg(" SCHED_FIFO\n"); + } + else if (attr->policy == SCHED_RR) + { + dbg(" SCHED_RR\n"); + } + else + { + dbg(" Unrecognized\n"); + } + +#ifndef CONFIG_DISABLE_SIGNALS + dbg(" sigmask: %08x\n", attr->sigmask); +#endif +}; + +#endif /* CONFIG_DEBUG */
\ No newline at end of file diff --git a/nuttx/libc/spawn/lib_psa_getflags.c b/nuttx/libc/spawn/lib_psa_getflags.c new file mode 100644 index 000000000..f0e07f0c2 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_getflags.c @@ -0,0 +1,72 @@ +/**************************************************************************** + * libc/string/lib_psa_getflags.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_getflags + * + * Description: + * The posix_spawnattr_getflags() function will obtain the value of the + * spawn-flags attribute from the attributes object referenced by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be queried. + * flags - The location to return the spawn flags + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_getflags(FAR const posix_spawnattr_t *attr, + FAR short *flags) +{ + DEBUGASSERT(attr && flags); + *flags = (short)attr->flags; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_getschedparam.c b/nuttx/libc/spawn/lib_psa_getschedparam.c new file mode 100644 index 000000000..ed8cb1f70 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_getschedparam.c @@ -0,0 +1,74 @@ +/**************************************************************************** + * libc/string/lib_psa_getschedparam.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sched.h> +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_getschedparam + * + * Description: + * The posix_spawnattr_getschedparam() function will obtain the value of + * the spawn-schedparam attribute from the attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be queried. + * flags - The location to return the spawn-schedparam value. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_getschedparam(FAR const posix_spawnattr_t *attr, + FAR struct sched_param *param) +{ + DEBUGASSERT(attr && param); + param->sched_priority = attr->priority; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_getschedpolicy.c b/nuttx/libc/spawn/lib_psa_getschedpolicy.c new file mode 100644 index 000000000..8f3645666 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_getschedpolicy.c @@ -0,0 +1,73 @@ +/**************************************************************************** + * libc/string/lib_psa_getschedpolicy.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_getschedpolicy + * + * Description: + * The posix_spawnattr_getschedpolicy() function shall obtain the value + * of the spawn-schedpolicy attribute from the attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be queried. + * policy - The location to return the scheduler policy + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_getschedpolicy(FAR const posix_spawnattr_t *attr, + FAR int *policy) +{ + DEBUGASSERT(attr && policy); + *policy = (int)attr->policy; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_getsigmask.c b/nuttx/libc/spawn/lib_psa_getsigmask.c new file mode 100644 index 000000000..dd3495b4d --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_getsigmask.c @@ -0,0 +1,78 @@ +/**************************************************************************** + * libc/string/lib_psa_getsigmask.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <signal.h> +#include <spawn.h> +#include <assert.h> + +#ifndef CONFIG_DISABLE_SIGNALS + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_getsigmask + * + * Description: + * The posix_spawnattr_getsigdefault() function will obtain the value of + * the spawn-sigmask attribute from the attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be queried. + * sigmask - The location to return the signal mask + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_getsigmask(FAR const posix_spawnattr_t *attr, + FAR sigset_t *sigmask) +{ + DEBUGASSERT(attr && sigmask); + *sigmask = attr->sigmask; + return OK; +} + +#endif /* !CONFIG_DISABLE_SIGNALS */ diff --git a/nuttx/libc/spawn/lib_psa_init.c b/nuttx/libc/spawn/lib_psa_init.c new file mode 100644 index 000000000..f76188c52 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_init.c @@ -0,0 +1,93 @@ +/**************************************************************************** + * libc/string/lib_psa_init.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sched.h> +#include <spawn.h> +#include <assert.h> +#include <errno.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_init + * + * Description: + * The posix_spawnattr_init() function initializes the object referenced + * by attr, to an empty set of spawn attributes for subsequent use in a + * call to posix_spawn() or posix_spawnp(). + * + * Input Parameters: + * attr - The address of the spawn attributes to be initialized. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_init(posix_spawnattr_t *attr) +{ + struct sched_param param; + int ret; + + DEBUGASSERT(attr); + + /* Flags: None */ + + attr->flags = 0; + + /* Set the default scheduler policy to the policy of this task */ + + attr->policy = sched_getscheduler(0); + + /* Set the default priority to the same priority as this task */ + + ret = sched_getparam(0, ¶m); + if (ret < 0) + { + return errno; + } + + attr->priority = param.sched_priority; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_setflags.c b/nuttx/libc/spawn/lib_psa_setflags.c new file mode 100644 index 000000000..34b71d841 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_setflags.c @@ -0,0 +1,71 @@ +/**************************************************************************** + * libc/string/lib_psa_setflags.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_setflags + * + * Description: + * The posix_spawnattr_setflags() function will set the spawn-flags + * attribute in an initialized attributes object referenced by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be used. + * flags - The new value of the spawn flags + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_setflags(FAR posix_spawnattr_t *attr, short flags) +{ + DEBUGASSERT(attr && (flags & ~0xff) == 0); + attr->flags = (uint8_t)flags; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_setschedparam.c b/nuttx/libc/spawn/lib_psa_setschedparam.c new file mode 100644 index 000000000..5e992e8a9 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_setschedparam.c @@ -0,0 +1,74 @@ +/**************************************************************************** + * libc/string/lib_psa_setschedparam.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sched.h> +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_setschedparam + * + * Description: + * The posix_spawnattr_setschedparam() function shall set the spawn- + * schedparam attribute in an initialized attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be used. + * param - The new sched_priority to set. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_setschedparam(FAR posix_spawnattr_t *attr, + FAR const struct sched_param *param) +{ + DEBUGASSERT(attr && param && (unsigned)param->sched_priority <= 0xff); + attr->priority = (uint8_t)param->sched_priority; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_setschedpolicy.c b/nuttx/libc/spawn/lib_psa_setschedpolicy.c new file mode 100644 index 000000000..136a6f0fd --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_setschedpolicy.c @@ -0,0 +1,72 @@ +/**************************************************************************** + * libc/string/lib_psa_setschedpolicy.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_setschedpolicy + * + * Description: + * The posix_spawnattr_setschedpolicy() function will set the spawn- + * schedpolicy attribute in an initialized attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be used. + * flags - The new value of the spawn flags + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_setschedpolicy(FAR posix_spawnattr_t *attr, int policy) +{ + DEBUGASSERT(attr && (policy == SCHED_FIFO || policy == SCHED_RR)); + attr->policy = (uint8_t)policy; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psa_setsigmask.c b/nuttx/libc/spawn/lib_psa_setsigmask.c new file mode 100644 index 000000000..28b7daf77 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_setsigmask.c @@ -0,0 +1,79 @@ +/**************************************************************************** + * libc/string/lib_psa_setsigmask.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <signal.h> +#include <spawn.h> +#include <assert.h> + +#ifndef CONFIG_DISABLE_SIGNALS + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_setsigmask + * + * Description: + * The posix_spawnattr_setsigmask() function will set the spawn- + * sigmask attribute in an initialized attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be used. + * flags - The new value of the default signal set + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_setsigmask(FAR posix_spawnattr_t *attr, + FAR const sigset_t *sigmask) +{ + DEBUGASSERT(attr && sigmask); + attr->sigmask = *sigmask; + return OK; +} + +#endif /* !CONFIG_DISABLE_SIGNALS */ + diff --git a/nuttx/libc/spawn/lib_psfa_addaction.c b/nuttx/libc/spawn/lib_psfa_addaction.c new file mode 100644 index 000000000..3f297d7cf --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_addaction.c @@ -0,0 +1,91 @@ +/**************************************************************************** + * libc/string/lib_psfa_addaction.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: add_file_action + * + * Description: + * Add the file action to the end for the file action list. + * + * Input Parameters: + * file_actions - The head of the file action list. + * entry - The file action to be added + * + * Returned Value: + * None + * + ****************************************************************************/ + +void add_file_action(FAR posix_spawn_file_actions_t *file_actions, + FAR struct spawn_general_file_action_s *entry) +{ + FAR struct spawn_general_file_action_s *prev; + FAR struct spawn_general_file_action_s *next; + + /* Find the end of the list */ + + for (prev = NULL, next = (FAR struct spawn_general_file_action_s *)*file_actions; + next; + prev = next, next = next->flink); + + /* Here next is NULL and prev points to the last entry in the list (or + * is NULL if the list is empty). + */ + + if (prev) + { + prev->flink = entry; + } + else + { + *file_actions = (posix_spawn_file_actions_t)entry; + } + + entry->flink = NULL; +} diff --git a/nuttx/libc/spawn/lib_psfa_addclose.c b/nuttx/libc/spawn/lib_psfa_addclose.c new file mode 100644 index 000000000..bf22a153a --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_addclose.c @@ -0,0 +1,100 @@ +/**************************************************************************** + * libc/string/lib_psfa_addclose.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdlib.h> +#include <spawn.h> +#include <assert.h> +#include <errno.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn_file_actions_addclose + * + * Description: + * The posix_spawn_file_actions_addclose() function adds a close operation + * to the list of operations associated with the object referenced by + * file_actions, for subsequent use in a call to posix_spawn() or + * posix_spawnp(). The descriptor referred to by fd is closed as if + * close() had been called on it prior to the new child process starting + * execution. + * + * Input Parameters: + * file_actions - The posix_spawn_file_actions_t to append the action. + * fd - The file descriptor to be closed. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawn_file_actions_addclose(FAR posix_spawn_file_actions_t *file_actions, + int fd) +{ + FAR struct spawn_close_file_action_s *entry; + + DEBUGASSERT(file_actions && fd >= 0 && fd < CONFIG_NFILE_DESCRIPTORS); + + /* Allocate the action list entry */ + + entry = (FAR struct spawn_close_file_action_s *) + zalloc(sizeof(struct spawn_close_file_action_s)); + + if (!entry) + { + return ENOMEM; + } + + /* Initialize the file action entry */ + + entry->action = SPAWN_FILE_ACTION_CLOSE; + entry->fd = fd; + + /* And add it to the file action list */ + + add_file_action(file_actions, (FAR struct spawn_general_file_action_s *)entry); + return OK; +} diff --git a/nuttx/libc/spawn/lib_psfa_adddup2.c b/nuttx/libc/spawn/lib_psfa_adddup2.c new file mode 100644 index 000000000..fc788a4e9 --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_adddup2.c @@ -0,0 +1,104 @@ +/**************************************************************************** + * libc/string/lib_psfa_adddup2.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdlib.h> +#include <spawn.h> +#include <assert.h> +#include <errno.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn_file_actions_adddup2 + * + * Description: + * The posix_spawn_file_actions_adddup2() function adds a dup2 operation to + * the list of operations associated with the object referenced by + * file_actions, for subsequent use in a call to posix_spawn() or + * posix_spawnp(). The descriptor referred to by fd2 is created as + * if dup2() had been called on fd1 prior to the new child process + * starting execution. + * + * Input Parameters: + * file_actions - The posix_spawn_file_actions_t to append the action. + * fd1 - The first file descriptor to be argument to dup2. + * fd2 - The first file descriptor to be argument to dup2. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawn_file_actions_adddup2(FAR posix_spawn_file_actions_t *file_actions, + int fd1, int fd2) +{ + FAR struct spawn_dup2_file_action_s *entry; + + DEBUGASSERT(file_actions && + fd1 >= 0 && fd1 < CONFIG_NFILE_DESCRIPTORS && + fd2 >= 0 && fd2 < CONFIG_NFILE_DESCRIPTORS); + + /* Allocate the action list entry */ + + entry = (FAR struct spawn_dup2_file_action_s *) + zalloc(sizeof(struct spawn_close_file_action_s)); + + if (!entry) + { + return ENOMEM; + } + + /* Initialize the file action entry */ + + entry->action = SPAWN_FILE_ACTION_DUP2; + entry->fd1 = fd1; + entry->fd2 = fd2; + + /* And add it to the file action list */ + + add_file_action(file_actions, (FAR struct spawn_general_file_action_s *)entry); + return OK; +} diff --git a/nuttx/libc/spawn/lib_psfa_addopen.c b/nuttx/libc/spawn/lib_psfa_addopen.c new file mode 100644 index 000000000..385e1cfc3 --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_addopen.c @@ -0,0 +1,119 @@ +/**************************************************************************** + * libc/string/lib_psfa_addopen.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdlib.h> +#include <string.h> +#include <spawn.h> +#include <assert.h> +#include <errno.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn_file_actions_addopen + * + * Description: + * The posix_spawn_file_actions_addopen() function adds an open operation + * to the list of operations associated with the object referenced by + * file_actions, for subsequent use in a call to posix_spawn() or + * posix_spawnp(). The descriptor referred to by fd is opened using + * the path, oflag, and mode arguments as if open() had been called on it + * prior to the new child process starting execution. The string path is + * copied by the posix_spawn_file_actions_addopen() function during this + * process, so storage need not be persistent in the caller. + * + * Input Parameters: + * file_actions - The posix_spawn_file_actions_t to append the action. + * fd - The file descriptor to be opened. + * path - The path to be opened. + * oflags - Open flags + * mode - File creation mode + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawn_file_actions_addopen(FAR posix_spawn_file_actions_t *file_actions, + int fd, FAR const char *path, int oflags, + mode_t mode) +{ + FAR struct spawn_open_file_action_s *entry; + size_t len; + size_t alloc; + + DEBUGASSERT(file_actions && path && + fd >= 0 && fd < CONFIG_NFILE_DESCRIPTORS); + + /* Get the size of the action including storage for the path plus its NUL + * terminating character. + */ + + len = strlen(path); + alloc = SIZEOF_OPEN_FILE_ACTION_S(len); + + /* Allocate the action list entry of this size */ + + entry = (FAR struct spawn_open_file_action_s *)zalloc(alloc); + + if (!entry) + { + return ENOMEM; + } + + /* Initialize the file action entry */ + + entry->action = SPAWN_FILE_ACTION_OPEN; + entry->fd = fd; + entry->oflags = oflags; + entry->mode = mode; + strncpy(entry->path, path, len+1); + + /* And add it to the file action list */ + + add_file_action(file_actions, (FAR struct spawn_general_file_action_s *)entry); + return OK; +} diff --git a/nuttx/libc/spawn/lib_psfa_destroy.c b/nuttx/libc/spawn/lib_psfa_destroy.c new file mode 100644 index 000000000..5d0a644d8 --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_destroy.c @@ -0,0 +1,96 @@ +/**************************************************************************** + * libc/string/lib_psfa_destroy.c + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdlib.h> +#include <spawn.h> +#include <assert.h> + +#include "spawn/spawn.h" + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn_file_actions_destroy + * + * Description: + * The posix_spawn_file_actions_destroy() function destroys the object + * referenced by file_actions which was previously intialized by + * posix_spawn_file_actions_init(), returning any resources obtained at the + * time of initialization to the system for subsequent reuse. A + * posix_spawn_file_actions_t may be reinitialized after having been + * destroyed, but must not be reused after destruction, unless it has been + * reinitialized. + * + * Input Parameters: + * file_actions - The posix_spawn_file_actions_t to be destroyed. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawn_file_actions_destroy(FAR posix_spawn_file_actions_t *file_actions) +{ + FAR struct spawn_general_file_action_s *curr; + FAR struct spawn_general_file_action_s *next; + + DEBUGASSERT(file_actions); + + /* Destroy each file action, one at a time */ + + for (curr = (FAR struct spawn_general_file_action_s *)*file_actions; + curr; + curr = next) + { + /* Get the pointer to the next element before destroying the current one */ + + next = curr->flink; + free(curr); + } + + /* Mark the list empty */ + + *file_actions = NULL; + return OK; +} diff --git a/nuttx/libc/spawn/lib_psfa_dump.c b/nuttx/libc/spawn/lib_psfa_dump.c new file mode 100644 index 000000000..d7bf1576d --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_dump.c @@ -0,0 +1,129 @@ +/**************************************************************************** + * libc/string/lib_psfa_dump.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> +#include <assert.h> +#include <debug.h> + +#include "spawn/spawn.h" + +#ifdef CONFIG_DEBUG + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lib_psfa_dump + * + * Description: + * Show the entryent file actions. + * + * Input Parameters: + * file_actions - The address of the file_actions to be dumped. + * + * Returned Value: + * None + * + ****************************************************************************/ + +void posix_spawn_file_actions_dump(FAR posix_spawn_file_actions_t *file_actions) +{ + FAR struct spawn_general_file_action_s *entry; + + DEBUGASSERT(file_actions); + + dbg("File Actions[%p->%p]:\n", file_actions, *file_actions); + if (!*file_actions) + { + dbg(" NONE\n"); + return; + } + + /* Destroy each file action, one at a time */ + + for (entry = (FAR struct spawn_general_file_action_s *)*file_actions; + entry; + entry = entry->flink) + { + switch (entry->action) + { + case SPAWN_FILE_ACTION_CLOSE: + { + FAR struct spawn_close_file_action_s *action = + (FAR struct spawn_close_file_action_s *)entry; + + dbg(" CLOSE: fd=%d\n", action->fd); + } + break; + + case SPAWN_FILE_ACTION_DUP2: + { + FAR struct spawn_dup2_file_action_s *action = + (FAR struct spawn_dup2_file_action_s *)entry; + + dbg(" DUP2: %d->%d\n", action->fd1, action->fd2); + } + break; + + case SPAWN_FILE_ACTION_OPEN: + { + FAR struct spawn_open_file_action_s *action = + (FAR struct spawn_open_file_action_s *)entry; + + svdbg(" OPEN: path=%s oflags=%04x mode=%04x fd=%d\n", + action->path, action->oflags, action->mode, action->fd); + } + break; + + case SPAWN_FILE_ACTION_NONE: + default: + dbg(" ERROR: Unknown action: %d\n", entry->action); + break; + } + } +} + +#endif /* CONFIG_DEBUG */
\ No newline at end of file diff --git a/nuttx/libc/spawn/lib_psfa_init.c b/nuttx/libc/spawn/lib_psfa_init.c new file mode 100644 index 000000000..5c902125a --- /dev/null +++ b/nuttx/libc/spawn/lib_psfa_init.c @@ -0,0 +1,70 @@ +/**************************************************************************** + * libc/string/lib_psfa_init.c + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawn_file_actions_init + * + * Description: + * The posix_spawn_file_actions_init() function initializes the object + * referenced by file_actions to an empty set of file actions for + * subsequent use in a call to posix_spawn() or posix_spawnp(). + * + * Input Parameters: + * file_actions - The address of the posix_spawn_file_actions_t to be + * initialized. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawn_file_actions_init(FAR posix_spawn_file_actions_t *file_actions) +{ + *file_actions = NULL; + return OK; +} diff --git a/nuttx/libc/spawn/spawn.h b/nuttx/libc/spawn/spawn.h new file mode 100644 index 000000000..3f4e195cc --- /dev/null +++ b/nuttx/libc/spawn/spawn.h @@ -0,0 +1,121 @@ +/**************************************************************************** + * libc/spawn/spawn.h + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __LIBC_SPAWN_SPAWN_H +#define __LIBC_SPAWN_SPAWN_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Definitions + ****************************************************************************/ +/* This enumerator identifies a file action */ + +enum spawn_file_actions_e +{ + SPAWN_FILE_ACTION_NONE = 0, + SPAWN_FILE_ACTION_CLOSE, + SPAWN_FILE_ACTION_DUP2, + SPAWN_FILE_ACTION_OPEN +}; + +/* posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(), + * and posix_spawn_file_actions_addopen() will allocate memory and append + * a new file action to an instance of posix_spawn_file_actions_t. The + * internal representation of these structures are defined below: + */ + +struct spawn_general_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* A member of enum spawn_file_actions_e */ +}; + +struct spawn_close_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_CLOSE */ + int fd; /* The file descriptor to close */ +}; + +struct spawn_dup2_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_DUP2 */ + int fd1; /* The first file descriptor for dup2() */ + int fd2; /* The second file descriptor for dup2() */ +}; + +struct spawn_open_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_OPEN */ + int fd; /* The file descriptor after opening */ + int oflags; /* Open flags */ + mode_t mode; /* File creation mode */ + char path[1]; /* Start of the path to be + * opened */ +}; + +#define SIZEOF_OPEN_FILE_ACTION_S(n) \ + (sizeof(struct spawn_open_file_action_s) + (n)) + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +extern "C" +{ +#endif + +void add_file_action(FAR posix_spawn_file_actions_t *file_action, + FAR struct spawn_general_file_action_s *entry); + +#ifdef __cplusplus +} +#endif + +#endif /* __LIBC_SPAWN_SPAWN_H */ |