Mercurial > hg > nginx
view src/os/win32/ngx_thread.c @ 4164:c48662671609 stable-1.0
Merging r4130, r4131, r4135:
Linux AIO related fixes:
*) Fixing Linux AIO syscalls return value handling:
syscall(2) uses usual libc convention, it returns -1 on error and
sets errno. Obsolete _syscall(2) returns negative value of error.
*) Fixing Linux AIO initiatialization: AIO operations are disabled
if kernel does not support them. Previously worker just exited.
*) The "worker_aio_requests" directive.
The default value is 32 AIO simultaneous requests per worker. Previously
they were hardcoded to 1024, and it was too large, since Linux allocated
them early on io_setup(), but not on request itself. So with default value
of /proc/sys/fs/aio-max-nr equal to 65536 only 64 worker processes could
be run simultaneously. 32 AIO requests are enough for modern disks even if
server runs only 1 worker.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 30 Sep 2011 14:12:53 +0000 |
parents | d43d73277c5c |
children | d620f497c50f |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> ngx_int_t ngx_threads_n; static size_t stack_size; ngx_err_t ngx_create_thread(ngx_tid_t *tid, ngx_thread_value_t (__stdcall *func)(void *arg), void *arg, ngx_log_t *log) { u_long id; ngx_err_t err; *tid = CreateThread(NULL, stack_size, func, arg, 0, &id); if (*tid != NULL) { ngx_log_error(NGX_LOG_NOTICE, log, 0, "create thread " NGX_TID_T_FMT, id); return 0; } err = ngx_errno; ngx_log_error(NGX_LOG_ALERT, log, err, "CreateThread() failed"); return err; } ngx_int_t ngx_init_threads(int n, size_t size, ngx_cycle_t *cycle) { stack_size = size; return NGX_OK; } ngx_err_t ngx_thread_key_create(ngx_tls_key_t *key) { *key = TlsAlloc(); if (*key == TLS_OUT_OF_INDEXES) { return ngx_errno; } return 0; } ngx_err_t ngx_thread_set_tls(ngx_tls_key_t *key, void *data) { if (TlsSetValue(*key, data) == 0) { return ngx_errno; } return 0; } ngx_mutex_t * ngx_mutex_init(ngx_log_t *log, ngx_uint_t flags) { return (ngx_mutex_t *) 1; } /* STUB */ void ngx_mutex_lock(ngx_mutex_t *m) { return; } ngx_int_t ngx_mutex_trylock(ngx_mutex_t *m) { return NGX_OK; } void ngx_mutex_unlock(ngx_mutex_t *m) { return; } /**/