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author | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
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committer | px4dev <px4@purgatory.org> | 2012-08-04 15:12:36 -0700 |
commit | 8a365179eafdf3aea98e60ab9f5882b200d4c759 (patch) | |
tree | 4f38d6d4cd80bd0b6e22e2bb534c3f117ce44e56 /apps/nshlib/nsh_proccmds.c | |
download | px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.gz px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.tar.bz2 px4-firmware-8a365179eafdf3aea98e60ab9f5882b200d4c759.zip |
Fresh import of the PX4 firmware sources.
Diffstat (limited to 'apps/nshlib/nsh_proccmds.c')
-rw-r--r-- | apps/nshlib/nsh_proccmds.c | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/apps/nshlib/nsh_proccmds.c b/apps/nshlib/nsh_proccmds.c new file mode 100644 index 000000000..487214501 --- /dev/null +++ b/apps/nshlib/nsh_proccmds.c @@ -0,0 +1,310 @@ +/**************************************************************************** + * apps/nshlib/nsh_proccmds.c + * + * Copyright (C) 2007-2009, 2011-2012 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 <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sched.h> +#include <errno.h> + +#include "nsh.h" +#include "nsh_console.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/* The returned value should be zero for sucess or TRUE or non zero for + * failure or FALSE. + */ + +typedef int (*exec_t)(void); + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +#ifndef CONFIG_NSH_DISABLE_PS +static const char *g_statenames[] = +{ + "INVALID ", + "PENDING ", + "READY ", + "RUNNING ", + "INACTIVE", + "WAITSEM ", +#ifndef CONFIG_DISABLE_MQUEUE + "WAITSIG ", +#endif +#ifndef CONFIG_DISABLE_MQUEUE + "MQNEMPTY", + "MQNFULL " +#endif +}; + +static const char *g_ttypenames[4] = +{ + "TASK ", + "PTHREAD", + "KTHREAD", + "--?-- " +}; +#endif + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ps_task + ****************************************************************************/ + +#ifndef CONFIG_NSH_DISABLE_PS +static void ps_task(FAR _TCB *tcb, FAR void *arg) +{ + struct nsh_vtbl_s *vtbl = (struct nsh_vtbl_s*)arg; +#if CONFIG_MAX_TASK_ARGS > 2 + int i; +#endif + + /* Show task status */ + + nsh_output(vtbl, "%5d %3d %4s %7s%c%c %8s ", + tcb->pid, tcb->sched_priority, + tcb->flags & TCB_FLAG_ROUND_ROBIN ? "RR " : "FIFO", + g_ttypenames[(tcb->flags & TCB_FLAG_TTYPE_MASK) >> TCB_FLAG_TTYPE_SHIFT], + tcb->flags & TCB_FLAG_NONCANCELABLE ? 'N' : ' ', + tcb->flags & TCB_FLAG_CANCEL_PENDING ? 'P' : ' ', + g_statenames[tcb->task_state]); + + /* Show task name and arguments */ + + nsh_output(vtbl, "%s(", tcb->argv[0]); + + /* Special case 1st argument (no comma) */ + + if (tcb->argv[1]) + { + nsh_output(vtbl, "%p", tcb->argv[1]); + } + + /* Then any additional arguments */ + +#if CONFIG_MAX_TASK_ARGS > 2 + for (i = 2; i <= CONFIG_MAX_TASK_ARGS && tcb->argv[i]; i++) + { + nsh_output(vtbl, ", %p", tcb->argv[i]); + } +#endif + nsh_output(vtbl, ")\n"); +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: cmd_exec + ****************************************************************************/ + +#ifndef CONFIG_NSH_DISABLE_EXEC +int cmd_exec(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + char *endptr; + uintptr_t addr; + + addr = (uintptr_t)strtol(argv[1], &endptr, 0); + if (!addr || endptr == argv[1] || *endptr != '\0') + { + nsh_output(vtbl, g_fmtarginvalid, argv[0]); + return ERROR; + } + + nsh_output(vtbl, "Calling %p\n", (exec_t)addr); + return ((exec_t)addr)(); +} +#endif + +/**************************************************************************** + * Name: cmd_ps + ****************************************************************************/ + +#ifndef CONFIG_NSH_DISABLE_PS +int cmd_ps(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + nsh_output(vtbl, "PID PRI SCHD TYPE NP STATE NAME\n"); + sched_foreach(ps_task, vtbl); + return OK; +} +#endif + +/**************************************************************************** + * Name: cmd_kill + ****************************************************************************/ + +#ifndef CONFIG_DISABLE_SIGNALS +#ifndef CONFIG_NSH_DISABLE_KILL +int cmd_kill(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + char *ptr; + char *endptr; + long signal; + long pid; + + /* Check incoming parameters. The first parameter should be "-<signal>" */ + + ptr = argv[1]; + if (*ptr != '-' || ptr[1] < '0' || ptr[1] > '9') + { + goto invalid_arg; + } + + /* Extract the signal number */ + + signal = strtol(&ptr[1], &endptr, 0); + + /* The second parameter should be <pid> */ + + ptr = argv[2]; + if (*ptr < '0' || *ptr > '9') + { + goto invalid_arg; + } + + /* Extract athe pid */ + + pid = strtol(ptr, &endptr, 0); + + /* Send the signal. Kill return values: + * + * EINVAL An invalid signal was specified. + * EPERM The process does not have permission to send the signal to any + * of the target processes. + * ESRCH The pid or process group does not exist. + * ENOSYS Do not support sending signals to process groups. + */ + + if (kill((pid_t)pid, (int)signal) == 0) + { + return OK; + } + + switch (errno) + { + case EINVAL: + goto invalid_arg; + + case ESRCH: + nsh_output(vtbl, g_fmtnosuch, argv[0], "task", argv[2]); + return ERROR; + + case EPERM: + case ENOSYS: + default: + nsh_output(vtbl, g_fmtcmdfailed, argv[0], "kill", NSH_ERRNO); + return ERROR; + } + +invalid_arg: + nsh_output(vtbl, g_fmtarginvalid, argv[0]); + return ERROR; +} +#endif +#endif + +/**************************************************************************** + * Name: cmd_sleep + ****************************************************************************/ + +#ifndef CONFIG_DISABLE_SIGNALS +#ifndef CONFIG_NSH_DISABLE_SLEEP +int cmd_sleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + char *endptr; + long secs; + + secs = strtol(argv[1], &endptr, 0); + if (!secs || endptr == argv[1] || *endptr != '\0') + { + nsh_output(vtbl, g_fmtarginvalid, argv[0]); + return ERROR; + } + sleep(secs); + return OK; +} +#endif +#endif + +/**************************************************************************** + * Name: cmd_usleep + ****************************************************************************/ + +#ifndef CONFIG_DISABLE_SIGNALS +#ifndef CONFIG_NSH_DISABLE_USLEEP +int cmd_usleep(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv) +{ + char *endptr; + long usecs; + + usecs = strtol(argv[1], &endptr, 0); + if (!usecs || endptr == argv[1] || *endptr != '\0') + { + nsh_output(vtbl, g_fmtarginvalid, argv[0]); + return ERROR; + } + usleep(usecs); + return OK; +} +#endif +#endif |