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[Kernel] add sigwait implementation

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This commit is contained in:
BernardXiong committed 2018-03-01 13:36:22 +08:00
1 parent ef668bc3aa
commit 38b9ed3118
9 files changed
+227 -138
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components/libc/signal/posix_signal.c
+50 -35
View File
@@ -31,37 +31,37 @@
void (*signal(int sig, void (*func)(int))) (int)
{
return rt_signal_install(sig, func);
return rt_signal_install(sig, func);
}
int sigprocmask (int how, const sigset_t *set, sigset_t *oset)
{
rt_base_t level;
rt_base_t level;
rt_thread_t tid;
tid = rt_thread_self();
level = rt_hw_interrupt_disable();
if (oset) *oset = tid->sig_mask;
level = rt_hw_interrupt_disable();
if (oset) *oset = tid->sig_mask;
if (set)
{
switch(how)
{
case SIG_BLOCK:
tid->sig_mask |= *set;
break;
case SIG_UNBLOCK:
tid->sig_mask &= ~*set;
break;
case SIG_SETMASK:
tid->sig_mask = *set;
break;
default:
break;
}
}
rt_hw_interrupt_enable(level);
if (set)
{
switch(how)
{
case SIG_BLOCK:
tid->sig_mask |= *set;
break;
case SIG_UNBLOCK:
tid->sig_mask &= ~*set;
break;
case SIG_SETMASK:
tid->sig_mask = *set;
break;
default:
break;
}
}
rt_hw_interrupt_enable(level);
return 0;
}
@@ -70,18 +70,18 @@ int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
{
rt_sighandler_t old = RT_NULL;
if (!sig_valid(signum)) return -RT_ERROR;
if (!sig_valid(signum)) return -RT_ERROR;
if (act)
old = rt_signal_install(signum, act->sa_handler);
else
{
old = rt_signal_install(signum, RT_NULL);
rt_signal_install(signum, old);
}
if (act)
old = rt_signal_install(signum, act->sa_handler);
else
{
old = rt_signal_install(signum, RT_NULL);
rt_signal_install(signum, old);
}
if (oldact)
oldact->sa_handler = old;
if (oldact)
oldact->sa_handler = old;
return 0;
}
@@ -89,7 +89,22 @@ int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact)
int sigtimedwait(const sigset_t *set, siginfo_t *info,
const struct timespec *timeout)
{
return 0;
int ret = 0;
int tick = RT_WAITING_FOREVER;
#ifdef RT_USING_PTHREADS
if (timeout)
{
extern int clock_time_to_tick(const struct timespec *time);
tick = clock_time_to_tick(timeout);
}
#endif
ret = rt_signal_wait(set, info, tick);
if (ret == 0) return 0;
errno = ret;
return -1;
}
int sigwait(const sigset_t *set, int *sig)
@@ -104,12 +119,12 @@ int sigwait(const sigset_t *set, int *sig)
int sigwaitinfo(const sigset_t *set, siginfo_t *info)
{
return sigtimedwait(set, info, NULL);
return sigtimedwait(set, info, NULL);
}
int raise(int sig)
{
rt_thread_kill(rt_thread_self(), sig);
rt_thread_kill(rt_thread_self(), sig);
return 0;
}
components/libc/signal/posix_signal.h
+1 -50
View File
@@ -30,6 +30,7 @@ extern "C" {
#endif
#include <rtthread.h>
#include <sys/signal.h>
enum rt_signal_value{
SIG1 = SIGHUP,
@@ -68,56 +69,6 @@ enum rt_signal_value{
SIGMAX = NSIG,
};
/*
The structure definitions on newlib:
typedef void (*_sig_func_ptr)(int);
struct sigaction
{
_sig_func_ptr sa_handler;
sigset_t sa_mask;
int sa_flags;
};
typedef int sig_atomic_t;
typedef _sig_func_ptr sig_t;
typedef _sig_func_ptr sighandler_t;
When enable POSIX_REALTIME_SIGNALS/POSIX_THREADS:
union sigval {
int sival_int;
void *sival_ptr;
};
struct sigevent {
int sigev_notify;
int sigev_signo;
union sigval sigev_value;
void (*sigev_notify_function)( union sigval );
pthread_attr_t *sigev_notify_attributes;
};
typedef struct {
int si_signo;
int si_code;
union sigval si_value;
} siginfo_t;
*/
rt_sighandler_t rt_signal_install(int signo, rt_sighandler_t handler);
void rt_signal_mask(int signo);
void rt_signal_unmask(int signo);
int rt_thread_kill(rt_thread_t tid, int sig);
int rt_system_signal_init(void);
#ifdef __cplusplus
}
#endif
include/libc/libc_signal.h
+20 -18
View File
@@ -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)
include/rtdef.h
+3 -1
View File
@@ -451,8 +451,10 @@ typedef struct rt_timer *rt_timer_t;
* @addtogroup Signal
*/
#ifdef RT_USING_SIGNALS
#include <libc/libc_signal.h>
typedef unsigned long rt_sigset_t;
typedef void (*rt_sighandler_t)(int signo);
typedef siginfo_t rt_siginfo_t;
#define RT_SIG_MAX 32
#endif
@@ -481,7 +483,7 @@ typedef void (*rt_sighandler_t)(int signo);
#define RT_THREAD_STAT_SIGNAL 0x10
#define RT_THREAD_STAT_SIGNAL_READY (RT_THREAD_STAT_SIGNAL | RT_THREAD_READY)
#define RT_THREAD_STAT_SIGNAL_SUSPEND 0x20
#define RT_THREAD_STAT_SIGNAL_WAIT 0x20
#define RT_THREAD_STAT_SIGNAL_MASK 0xf0
/**
include/rtthread.h
+1
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@@ -204,6 +204,7 @@ void rt_scheduler_sethook(void (*hook)(rt_thread_t from, rt_thread_t to));
void rt_signal_mask(int signo);
void rt_signal_unmask(int signo);
rt_sighandler_t rt_signal_install(int signo, rt_sighandler_t handler);
int rt_signal_wait(const rt_sigset_t *set, rt_siginfo_t *si, rt_int32_t timeout);
int rt_system_signal_init(void);
#endif
src/scheduler.c
+2 -2
View File
@@ -263,7 +263,7 @@ void rt_schedule(void)
rt_hw_interrupt_enable(level);
}
}
else
else
{
/* enable interrupt */
rt_hw_interrupt_enable(level);
@@ -293,7 +293,7 @@ void rt_schedule_insert_thread(struct rt_thread *thread)
temp = rt_hw_interrupt_disable();
/* change stat */
thread->stat = RT_THREAD_READY;
thread->stat = RT_THREAD_READY | (thread->stat & ~RT_THREAD_STAT_MASK);
/* insert thread to ready list */
rt_list_insert_before(&(rt_thread_priority_table[thread->current_priority]),
src/signal.c
+147 -29
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File diff suppressed because it is too large. Load diff
src/thread.c
+2 -2
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@@ -638,7 +638,7 @@ rt_err_t rt_thread_suspend(rt_thread_t thread)
if ((thread->stat & RT_THREAD_STAT_MASK) != RT_THREAD_READY)
{
RT_DEBUG_LOG(RT_DEBUG_THREAD, ("thread suspend: thread disorder, %d\n",
RT_DEBUG_LOG(RT_DEBUG_THREAD, ("thread suspend: thread disorder, 0x%2x\n",
thread->stat));
return -RT_ERROR;
@@ -648,7 +648,7 @@ rt_err_t rt_thread_suspend(rt_thread_t thread)
temp = rt_hw_interrupt_disable();
/* change thread stat */
thread->stat = RT_THREAD_SUSPEND;
thread->stat = RT_THREAD_SUSPEND | (thread->stat & ~RT_THREAD_STAT_MASK);
rt_schedule_remove_thread(thread);
/* stop thread timer anyway */
src/timer.c
+1 -1
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@@ -396,7 +396,7 @@ rt_err_t rt_timer_start(rt_timer_t timer)
if (timer->parent.flag & RT_TIMER_FLAG_SOFT_TIMER)
{
/* check whether timer thread is ready */
if (timer_thread.stat != RT_THREAD_READY)
if ((timer_thread.stat & RT_THREAD_STAT_MASK) != RT_THREAD_READY)
{
/* resume timer thread to check soft timer */
rt_thread_resume(&timer_thread);