72 lines
1.5 KiB
C
72 lines
1.5 KiB
C
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-11-30 Shell Add itimer support
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*/
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#define _GNU_SOURCE
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#include <sys/time.h>
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#undef _GNU_SOURCE
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#define DBG_TAG "lwp.signal"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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#include <rthw.h>
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#include <rtthread.h>
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#include <string.h>
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#include "lwp_internal.h"
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#include "sys/signal.h"
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#include "syscall_generic.h"
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rt_err_t lwp_signal_setitimer(rt_lwp_t lwp, int which, const struct itimerspec *restrict new, struct itimerspec *restrict old)
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{
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rt_err_t rc = RT_EOK;
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timer_t timerid = 0;
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int flags = 0;
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if (lwp->signal.real_timer == LWP_SIG_INVALID_TIMER)
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{
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struct sigevent sevp = {
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.sigev_signo = SIGALRM,
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.sigev_notify = SIGEV_SIGNAL,
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};
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rc = timer_create(CLOCK_REALTIME_ALARM, &sevp, &timerid);
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if (rc == RT_EOK)
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{
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RT_ASSERT(timerid != LWP_SIG_INVALID_TIMER);
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lwp->signal.real_timer = timerid;
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}
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else
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{
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/* failed to create timer */
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}
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}
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else
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{
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timerid = lwp->signal.real_timer;
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}
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if (rc == RT_EOK)
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{
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switch (which)
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{
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case ITIMER_REAL:
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rc = timer_settime(timerid, flags, new, old);
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break;
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default:
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rc = -ENOSYS;
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LOG_W("%s() unsupported timer", __func__);
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break;
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}
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}
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return rc;
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}
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