108 lines
2.3 KiB
C
108 lines
2.3 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#include <nxt_main.h>
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nxt_int_t
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nxt_thread_cond_create(nxt_thread_cond_t *cond)
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{
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nxt_err_t err;
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err = pthread_cond_init(cond, NULL);
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if (err == 0) {
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nxt_thread_log_debug("pthread_cond_init(%p)", cond);
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return NXT_OK;
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}
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nxt_thread_log_emerg("pthread_cond_init() failed %E", err);
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return NXT_ERROR;
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}
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void
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nxt_thread_cond_destroy(nxt_thread_cond_t *cond)
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{
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nxt_err_t err;
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err = pthread_cond_destroy(cond);
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if (err != 0) {
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nxt_thread_log_alert("pthread_cond_destroy() failed %E", err);
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}
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nxt_thread_log_debug("pthread_cond_destroy(%p)", cond);
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}
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nxt_int_t
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nxt_thread_cond_signal(nxt_thread_cond_t *cond)
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{
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nxt_err_t err;
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err = pthread_cond_signal(cond);
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if (nxt_fast_path(err == 0)) {
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nxt_thread_log_debug("pthread_cond_signal(%p)", cond);
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return NXT_OK;
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}
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nxt_thread_log_alert("pthread_cond_signal() failed %E", err);
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return NXT_ERROR;
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}
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nxt_err_t
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nxt_thread_cond_wait(nxt_thread_cond_t *cond, nxt_thread_mutex_t *mtx,
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nxt_nsec_t timeout)
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{
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nxt_err_t err;
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nxt_nsec_t ns;
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nxt_thread_t *thr;
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nxt_realtime_t *now;
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struct timespec ts;
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thr = nxt_thread();
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if (timeout == NXT_INFINITE_NSEC) {
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nxt_log_debug(thr->log, "pthread_cond_wait(%p) enter", cond);
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err = pthread_cond_wait(cond, mtx);
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nxt_thread_time_update(thr);
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if (nxt_fast_path(err == 0)) {
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nxt_log_debug(thr->log, "pthread_cond_wait(%p) exit", cond);
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return 0;
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}
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nxt_log_alert(thr->log, "pthread_cond_wait() failed %E", err);
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} else {
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nxt_log_debug(thr->log, "pthread_cond_timedwait(%p, %N) enter",
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cond, timeout);
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now = nxt_thread_realtime(thr);
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ns = now->nsec + timeout;
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ts.tv_sec = now->sec + ns / 1000000000;
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ts.tv_nsec = ns % 1000000000;
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err = pthread_cond_timedwait(cond, mtx, &ts);
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nxt_thread_time_update(thr);
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if (nxt_fast_path(err == 0 || err == NXT_ETIMEDOUT)) {
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nxt_log_debug(thr->log, "pthread_cond_timedwait(%p) exit: %d",
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cond, err);
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return err;
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}
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nxt_log_alert(thr->log, "pthread_cond_timedwait() failed %E", err);
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}
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return NXT_ERROR;
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}
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