Mercurial > hg > nginx
view src/os/unix/ngx_thread_cond.c @ 9284:5c6649b4308f
QUIC: ngx_quic_buffer_t use-after-free protection.
Previously the last chain field of ngx_quic_buffer_t could still reference freed
chains and buffers after calling ngx_quic_free_buffer(). While normally an
ngx_quic_buffer_t object should not be used after freeing, resetting last_chain
field would prevent a potential use-after-free.
author | Roman Arutyunyan <arut@nginx.com> |
---|---|
date | Tue, 28 May 2024 17:19:21 +0400 |
parents | 022ea0d17177 |
children |
line wrap: on
line source
/* * 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) { 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) { 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) { 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; err = pthread_cond_wait(cond, mtx); #if 0 ngx_time_update(); #endif if (err == 0) { return NGX_OK; } ngx_log_error(NGX_LOG_ALERT, log, err, "pthread_cond_wait() failed"); return NGX_ERROR; }