Mercurial > hg > nginx-quic
view src/http/ngx_http_busy_lock.h @ 6077:0395f788b080 stable-1.6
Resolver: fixed use-after-free memory access.
In 954867a2f0a6, we switched to using resolver node as the
timer event data, so make sure we do not free resolver node
memory until the corresponding timer is deleted.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Thu, 20 Nov 2014 15:24:40 +0300 |
parents | d620f497c50f |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_HTTP_BUSY_LOCK_H_INCLUDED_ #define _NGX_HTTP_BUSY_LOCK_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_event.h> #include <ngx_http.h> typedef struct { u_char *md5_mask; char *md5; int cacheable; int busy; int max_busy; int waiting; int max_waiting; time_t timeout; ngx_event_mutex_t *mutex; } ngx_http_busy_lock_t; typedef struct { time_t time; ngx_event_t *event; void (*event_handler)(ngx_event_t *ev); u_char *md5; int slot; } ngx_http_busy_lock_ctx_t; int ngx_http_busy_lock(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc); int ngx_http_busy_lock_cacheable(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc, int lock); void ngx_http_busy_unlock(ngx_http_busy_lock_t *bl, ngx_http_busy_lock_ctx_t *bc); char *ngx_http_set_busy_lock_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); #endif /* _NGX_HTTP_BUSY_LOCK_H_INCLUDED_ */