Mercurial > hg > nginx-quic
view src/os/unix/ngx_thread.h @ 6272:b6a665bf858a
HTTP/2: fix indirect reprioritization.
Previously, streams that were indirectly reprioritized (either because of
a new exclusive dependency on their parent or because of removal of their
parent from the dependency tree), didn't have their pointer to the parent
node updated.
This broke detection of circular dependencies and, as a result, nginx
worker would crash due to stack overflow whenever such dependency was
introduced.
Found with afl-fuzz.
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
author | Piotr Sikora <piotrsikora@google.com> |
---|---|
date | Thu, 01 Oct 2015 20:25:55 -0700 |
parents | ac7c7241ed8c |
children | d230c797b168 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_THREAD_H_INCLUDED_ #define _NGX_THREAD_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #if (NGX_THREADS) #include <pthread.h> typedef pthread_mutex_t ngx_thread_mutex_t; ngx_int_t ngx_thread_mutex_create(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_destroy(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_lock(ngx_thread_mutex_t *mtx, ngx_log_t *log); ngx_int_t ngx_thread_mutex_unlock(ngx_thread_mutex_t *mtx, ngx_log_t *log); typedef pthread_cond_t ngx_thread_cond_t; ngx_int_t ngx_thread_cond_create(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_destroy(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_signal(ngx_thread_cond_t *cond, ngx_log_t *log); ngx_int_t ngx_thread_cond_wait(ngx_thread_cond_t *cond, ngx_thread_mutex_t *mtx, ngx_log_t *log); #if (NGX_LINUX) typedef pid_t ngx_tid_t; #define NGX_TID_T_FMT "%P" #elif (NGX_FREEBSD) typedef uint32_t ngx_tid_t; #define NGX_TID_T_FMT "%uD" #elif (NGX_DARWIN) typedef uint64_t ngx_tid_t; #define NGX_TID_T_FMT "%uA" #else typedef uint64_t ngx_tid_t; #define NGX_TID_T_FMT "%uA" #endif ngx_tid_t ngx_thread_tid(void); #define ngx_log_tid ngx_thread_tid() #else #define ngx_log_tid 0 #define NGX_TID_T_FMT "%d" #endif #endif /* _NGX_THREAD_H_INCLUDED_ */