Mercurial > hg > nginx
view src/os/win32/ngx_thread.h @ 5245:711fa02afae8
Valgrind: supressed complaints about uninitialized bytes.
Valgrind complains if we pass uninitialized memory to a syscall:
==36492== Syscall param sendmsg(msg.msg_iov[0]) points to uninitialised byte(s)
==36492== at 0x6B5E6A: sendmsg (in /usr/lib/system/libsystem_kernel.dylib)
==36492== by 0x10004288E: ngx_signal_worker_processes (ngx_process_cycle.c:527)
==36492== by 0x1000417A7: ngx_master_process_cycle (ngx_process_cycle.c:203)
==36492== by 0x100001F10: main (nginx.c:410)
==36492== Address 0x7fff5fbff71c is on thread 1's stack
Even initialization of all members of the structure passed isn't enough, as
there is padding which still remains uninitialized and results in Valgrind
complaint. Note there is no real problem here as data from uninitialized
memory isn't used.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Wed, 05 Jun 2013 19:44:22 +0400 |
parents | d620f497c50f |
children | 94ce52db3367 |
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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> typedef HANDLE ngx_tid_t; typedef DWORD ngx_tls_key_t; typedef DWORD ngx_thread_value_t; typedef struct { HANDLE mutex; ngx_log_t *log; } ngx_mutex_t; ngx_err_t ngx_create_thread(ngx_tid_t *tid, ngx_thread_value_t (__stdcall *func)(void *arg), void *arg, ngx_log_t *log); ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle); ngx_err_t ngx_thread_key_create(ngx_tls_key_t *key); #define ngx_thread_key_create_n "TlsAlloc()" ngx_err_t ngx_thread_set_tls(ngx_tls_key_t *key, void *data); #define ngx_thread_set_tls_n "TlsSetValue()" #define ngx_thread_get_tls TlsGetValue #define ngx_thread_volatile volatile #define ngx_log_tid GetCurrentThreadId() #define NGX_TID_T_FMT "%ud" ngx_mutex_t *ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags); void ngx_mutex_lock(ngx_mutex_t *m); ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m); void ngx_mutex_unlock(ngx_mutex_t *m); /* STUB */ #define NGX_MUTEX_LIGHT 0 /**/ extern ngx_int_t ngx_threads_n; #endif /* _NGX_THREAD_H_INCLUDED_ */