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Diffstat (limited to 'nuttx/include/signal.h')
| -rw-r--r-- | nuttx/include/signal.h | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/nuttx/include/signal.h b/nuttx/include/signal.h deleted file mode 100644 index a02170242..000000000 --- a/nuttx/include/signal.h +++ /dev/null @@ -1,265 +0,0 @@ -/******************************************************************************** - * include/signal.h - * - * Copyright (C) 2007-2009, 2011 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 __INCLUDE_SIGNAL_H -#define __INCLUDE_SIGNAL_H - -/******************************************************************************** - * Included Files - ********************************************************************************/ - -#include <nuttx/config.h> -#include <nuttx/compiler.h> - -#include <stdint.h> -#include <time.h> - -/******************************************************************************** - * Pre-processor Definitions - ********************************************************************************/ - -/* Signal set management definitions and macros. */ - -#define NULL_SIGNAL_SET ((sigset_t)0x00000000) -#define ALL_SIGNAL_SET ((sigset_t)0xffffffff) -#define MIN_SIGNO 0 -#define MAX_SIGNO 31 -#define GOOD_SIGNO(s) ((((unsigned)(s))<=MAX_SIGNO)) -#define SIGNO2SET(s) ((sigset_t)1 << (s)) - -/* All signals are "real time" signals */ - -#define SIGRTMIN MIN_SIGNO /* First real time signal */ -#define SIGRTMAX MAX_SIGNO /* Last real time signal */ - -/* A few of the real time signals are used within the OS. They have - * default values that can be overridden from the configuration file. The - * rest are all user signals. - * - * The signal number zero is wasted for the most part. It is a valid - * signal number, but has special meaning at many interfaces (e.g., Kill()). - * - * These are the semi-standard signal definitions: - */ - -#ifndef CONFIG_SIG_SIGUSR1 -# define SIGUSR1 1 /* User signal 1 */ -#else -# define SIGUSR1 CONFIG_SIG_SIGUSR1 -#endif - -#ifndef CONFIG_SIG_SIGUSR2 -# define SIGUSR2 2 /* User signal 2 */ -#else -# define SIGUSR2 CONFIG_SIG_SIGUSR2 -#endif - -#ifndef CONFIG_SIG_SIGALARM -# define SIGALRM 3 /* Default signal used with POSIX timers (used only */ - /* no other signal is provided) */ -#else -# define SIGALRM CONFIG_SIG_SIGALARM -#endif - -#ifdef CONFIG_SCHED_HAVE_PARENT -# ifndef CONFIG_SIG_SIGCHLD -# define SIGCHLD 4 /* Used by child threads to signal parent thread */ -# else -# define SIGCHLD CONFIG_SIG_SIGCHLD -# endif -#endif - -/* The following are non-standard signal definitions */ - -#ifndef CONFIG_DISABLE_PTHREAD -# ifndef CONFIG_SIG_SIGCONDTIMEDOUT -# define SIGCONDTIMEDOUT 16 /* Used in the implementation of pthread_cond_timedwait */ -# else -# define SIGCONDTIMEDOUT CONFIG_SIG_SIGCONDTIMEDOUT -# endif -#endif - -/* SIGWORK is used to wake up various internal, NuttX worker thread */ - -#if defined(CONFIG_SCHED_WORKQUEUE) || defined(CONFIG_PAGING) -# ifndef CONFIG_SIG_SIGWORK -# define SIGWORK 17 /* Used to wake up the work queue */ -# else -# define SIGWORK CONFIG_SIG_SIGWORK -# endif -#endif - -/* sigprocmask() "how" definitions. Only one of the following can be specified: */ - -#define SIG_BLOCK 1 /* Block the given signals */ -#define SIG_UNBLOCK 2 /* Unblock the given signals */ -#define SIG_SETMASK 3 /* Set the signal mask to the current set */ - -/* struct sigaction flag values */ - -#define SA_NOCLDSTOP (1 << 0) /* Do not generate SIGCHILD when - * children stop (ignored) */ -#define SA_SIGINFO (1 << 1) /* Invoke the signal-catching function - * with 3 args instead of 1 - * (always assumed) */ -#define SA_NOCLDWAIT (1 << 2) /* If signo=SIGCHLD, exit status of child - * processes will be discarded */ - -/* These are the possible values of the signfo si_code field */ - -#define SI_USER 0 /* Signal sent from kill, raise, or abort */ -#define SI_QUEUE 1 /* Signal sent from sigqueue */ -#define SI_TIMER 2 /* Signal is result of timer expiration */ -#define SI_ASYNCIO 3 /* Signal is the result of asynch IO completion */ -#define SI_MESGQ 4 /* Signal generated by arrival of a message on an */ - /* empty message queue */ -#define CLD_EXITED 5 /* Child has exited (SIGCHLD only) */ -#define CLD_KILLED 6 /* Child was killed (SIGCHLD only) */ -#define CLD_DUMPED 7 /* Child terminated abnormally (SIGCHLD only) */ -#define CLD_TRAPPED 8 /* Traced child has trapped (SIGCHLD only) */ -#define CLD_STOPPED 9 /* Child has stopped (SIGCHLD only) */ -#define CLD_CONTINUED 10 /* Stopped child had continued (SIGCHLD only) */ - -/* Values for the sigev_notify field of struct sigevent */ - -#define SIGEV_NONE 0 /* No notification desired */ -#define SIGEV_SIGNAL 1 /* Notify via signal */ - -/* Special values of sigaction (all treated like NULL) */ - -#define SIG_ERR ((CODE void*)-1) -#define SIG_DFL ((CODE void*)0) -#define SIG_IGN ((CODE void*)0) - -/******************************************************************************** - * Global Type Declarations - ********************************************************************************/ - -/* This defines a set of 32 signals (numbered 0 through 31). */ - -typedef uint32_t sigset_t; /* Bit set of 32 signals */ - -/* This defines the type of the siginfo si_value field */ - -union sigval -{ - int sival_int; /* Integer value */ - FAR void *sival_ptr; /* Pointer value */ -}; - -/* This structure contains elements that define a queue signal. The following is - * used to attach a signal to a message queue to notify a task when a message is - * available on a queue - */ - -struct sigevent -{ - uint8_t sigev_notify; /* Notification method: SIGEV_SIGNAL or SIGEV_NONE */ - uint8_t sigev_signo; /* Notification signal */ - union sigval sigev_value; /* Data passed with notification */ -}; - -/* The following types is used to pass parameters to/from signal handlers */ - -struct siginfo -{ - uint8_t si_signo; /* Identifies signal */ - uint8_t si_code; /* Source: SI_USER, SI_QUEUE, SI_TIMER, SI_ASYNCIO, or SI_MESGQ */ - union sigval si_value; /* Data passed with signal */ -#ifdef CONFIG_SCHED_HAVE_PARENT - pid_t si_pid; /* Sending task ID */ - int si_status; /* Exit value or signal (SIGCHLD only). */ -#endif -}; - -typedef struct siginfo siginfo_t; - -/* The following structure defines the action to take for given signal */ - -struct sigaction -{ - union - { - CODE void (*_sa_handler)(int); - CODE void (*_sa_sigaction)(int, FAR siginfo_t *, FAR void *); - } sa_u; - sigset_t sa_mask; - int sa_flags; -}; - -#define sa_handler sa_u._sa_handler -#define sa_sigaction sa_u._sa_sigaction - -/******************************************************************************** - * Global Variables - ********************************************************************************/ - -/******************************************************************************** - * Global Function Prototypes - ********************************************************************************/ - -#ifdef __cplusplus -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - -EXTERN int kill(pid_t, int); -EXTERN int sigemptyset(FAR sigset_t *set); -EXTERN int sigfillset(FAR sigset_t *set); -EXTERN int sigaddset(FAR sigset_t *set, int signo); -EXTERN int sigdelset(FAR sigset_t *set, int signo); -EXTERN int sigismember(FAR const sigset_t *set, int signo); -EXTERN int sigaction(int sig, FAR const struct sigaction *act, FAR struct sigaction *oact); -EXTERN int sigprocmask(int how, FAR const sigset_t *set, FAR sigset_t *oset); -EXTERN int sigpending(FAR sigset_t *set); -EXTERN int sigsuspend(FAR const sigset_t *sigmask); -EXTERN int sigwaitinfo(FAR const sigset_t *set, FAR struct siginfo *value); -EXTERN int sigtimedwait(FAR const sigset_t *set, FAR struct siginfo *value, - FAR const struct timespec *timeout); -#ifdef CONFIG_CAN_PASS_STRUCTS -EXTERN int sigqueue(int pid, int signo, union sigval value); -#else -EXTERN int sigqueue(int pid, int signo, FAR void *sival_ptr); -#endif - -#undef EXTERN -#ifdef __cplusplus -} -#endif - -#endif /* __INCLUDE_SIGNAL_H */ - |