Mercurial > hg > nginx-quic
diff src/os/unix/ngx_thread_cond.c @ 6018:466bd63b63d1
Thread pools implementation.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Sat, 14 Mar 2015 17:37:07 +0300 |
parents | |
children | 022ea0d17177 |
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new file mode 100644 --- /dev/null +++ b/src/os/unix/ngx_thread_cond.c @@ -0,0 +1,87 @@ + +/* + * Copyright (C) Igor Sysoev + * Copyright (C) Nginx, Inc. + */ + + +#include <ngx_config.h> +#include <ngx_core.h> + + +ngx_int_t +ngx_thread_cond_create(ngx_thread_cond_t *cond, ngx_log_t *log) +{ + ngx_err_t err; + + err = pthread_cond_init(cond, NULL); + if (err == 0) { + ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, + "pthread_cond_init(%p)", cond); + return NGX_OK; + } + + ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_init() failed"); + return NGX_ERROR; +} + + +ngx_int_t +ngx_thread_cond_destroy(ngx_thread_cond_t *cond, ngx_log_t *log) +{ + ngx_err_t err; + + err = pthread_cond_destroy(cond); + if (err == 0) { + ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, + "pthread_cond_destroy(%p)", cond); + return NGX_OK; + } + + ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_destroy() failed"); + return NGX_ERROR; +} + + +ngx_int_t +ngx_thread_cond_signal(ngx_thread_cond_t *cond, ngx_log_t *log) +{ + ngx_err_t err; + + err = pthread_cond_signal(cond); + if (err == 0) { + ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, + "pthread_cond_signal(%p)", cond); + return NGX_OK; + } + + ngx_log_error(NGX_LOG_EMERG, log, err, "pthread_cond_signal() failed"); + return NGX_ERROR; +} + + +ngx_int_t +ngx_thread_cond_wait(ngx_thread_cond_t *cond, ngx_thread_mutex_t *mtx, + ngx_log_t *log) +{ + ngx_err_t err; + + ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, + "pthread_cond_wait(%p) enter", cond); + + err = pthread_cond_wait(cond, mtx); + +#if 0 + ngx_time_update(); +#endif + + if (err == 0) { + ngx_log_debug1(NGX_LOG_DEBUG_CORE, log, 0, + "pthread_cond_wait(%p) exit", cond); + return NGX_OK; + } + + ngx_log_error(NGX_LOG_ALERT, log, err, "pthread_cond_wait() failed"); + + return NGX_ERROR; +}