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[Kernel] add sigwait implementation

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This commit is contained in:
BernardXiong
2018-03-01 13:36:22 +08:00
parent ef668bc3aa
commit 38b9ed3118
9 changed files with 227 additions and 138 deletions
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38
include/libc/libc_signal.h
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@@ -30,6 +30,7 @@
extern "C" {
#endif
#ifndef HAVE_SYS_SIGNALS
/* Signal Generation and Delivery, P1003.1b-1993, p. 63
NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
sigev_notify_attributes to the sigevent structure. */
@@ -59,14 +60,15 @@ struct siginfo
union sigval si_value;
};
typedef struct siginfo siginfo_t;
#endif
#define SI_USER 0x01 /* Signal sent by kill(). */
#define SI_QUEUE 0x02 /* Signal sent by sigqueue(). */
#define SI_TIMER 0x03 /* Signal generated by expiration of a
#define SI_USER 0x01 /* Signal sent by kill(). */
#define SI_QUEUE 0x02 /* Signal sent by sigqueue(). */
#define SI_TIMER 0x03 /* Signal generated by expiration of a
timer set by timer_settime(). */
#define SI_ASYNCIO 0x04 /* Signal generated by completion of an
asynchronous I/O request. */
#define SI_MESGQ 0x05 /* Signal generated by arrival of a
#define SI_ASYNCIO 0x04 /* Signal generated by completion of an
asynchronous I/O request. */
#define SI_MESGQ 0x05 /* Signal generated by arrival of a
message on an empty message queue. */
#ifdef RT_USING_NEWLIB
@@ -107,17 +109,17 @@ typedef unsigned long sigset_t;
#define SIGRTMAX 31
#define NSIG 32
#define SIG_SETMASK 0 /* set mask with sigprocmask() */
#define SIG_BLOCK 1 /* set of signals to block */
#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
#define SIG_SETMASK 0 /* set mask with sigprocmask() */
#define SIG_BLOCK 1 /* set of signals to block */
#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
typedef void (*_sig_func_ptr)(int);
struct sigaction
{
_sig_func_ptr sa_handler;
sigset_t sa_mask;
int sa_flags;
_sig_func_ptr sa_handler;
sigset_t sa_mask;
int sa_flags;
};
#define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0)
@@ -163,17 +165,17 @@ typedef unsigned long sigset_t;
#define SIGRTMAX 31
#define NSIG 32
#define SIG_SETMASK 0 /* set mask with sigprocmask() */
#define SIG_BLOCK 1 /* set of signals to block */
#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
#define SIG_SETMASK 0 /* set mask with sigprocmask() */
#define SIG_BLOCK 1 /* set of signals to block */
#define SIG_UNBLOCK 2 /* set of signals to, well, unblock */
typedef void (*_sig_func_ptr)(int);
struct sigaction
{
_sig_func_ptr sa_handler;
sigset_t sa_mask;
int sa_flags;
_sig_func_ptr sa_handler;
sigset_t sa_mask;
int sa_flags;
};
#define sigaddset(what,sig) (*(what) |= (1<<(sig)), 0)