nginx/src/os/win32/ngx_atomic.h


/*
 * Copyright (C) Igor Sysoev
 */


#ifndef _NGX_ATOMIC_H_INCLUDED_
#define _NGX_ATOMIC_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


#define NGX_HAVE_ATOMIC_OPS   1

typedef int32_t                     ngx_atomic_int_t;
typedef uint32_t                    ngx_atomic_uint_t;
typedef volatile ngx_atomic_uint_t  ngx_atomic_t;
#define NGX_ATOMIC_T_LEN            sizeof("-2147483648") - 1


#if defined( __WATCOMC__ ) || defined( __BORLANDC__ ) || ( _MSC_VER >= 1300 )

/* the new SDK headers */

#define ngx_atomic_cmp_set(lock, old, set)                                    \
     (InterlockedCompareExchange((long *) lock, set, old) == old)

#else

/* the old MS VC6.0SP2 SDK headers */

#define ngx_atomic_cmp_set(lock, old, set)                                    \
     (InterlockedCompareExchange((void **) lock, (void *) set, (void *) old)  \
      == (void *) old)

#endif


#define ngx_atomic_fetch_add(p, add) InterlockedExchangeAdd((long *) p, add)


#define ngx_memory_barrier()


void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin);

#define ngx_trylock(lock)  (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))
#define ngx_unlock(lock)    *(lock) = 0


#endif /* _NGX_ATOMIC_H_INCLUDED_ */
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files 2004-09-28 16:34:51 +08:00
			`/*`
nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright 2004-09-30 00:00:49 +08:00			`* Copyright (C) Igor Sysoev`
nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files 2004-09-28 16:34:51 +08:00			`*/`


nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00			`#ifndef _NGX_ATOMIC_H_INCLUDED_`
			`#define _NGX_ATOMIC_H_INCLUDED_`


			`#include <ngx_config.h>`
			`#include <ngx_core.h>`


nginx-0.0.11-2004-09-22-20:18:21 import 2004-09-23 00:18:21 +08:00			`#define NGX_HAVE_ATOMIC_OPS 1`

nginx-0.3.2-RELEASE import ) Feature: the Sun Studio 10 C compiler support. ) Feature: the "proxy_upstream_max_fails", "proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", and "fastcgi_upstream_fail_timeout" directives. 2005-10-12 21:50:36 +08:00			`typedef int32_t ngx_atomic_int_t;`
			`typedef uint32_t ngx_atomic_uint_t;`
nginx-0.1.23-RELEASE import ) Feature: the ngx_http_ssi_filter_module and the ssi, ssi_silent_errors, and ssi_min_file_chunk directives. The 'echo var="HTTP_..." default=""' and 'echo var="REMOTE_ADDR"' commands are supported. ) Feature: the %request_time log parameter. ) Feature: if the request has no the "Host" header line, then the "proxy_preserve_host" directive set this header line to the first server name of the "server_name" directive. ) Bugfix: nginx could not be built on platforms different from i386, amd64, sparc, and ppc; the bug had appeared in 0.1.22. ) Bugfix: the ngx_http_autoindex_module now shows the information not about the symlink, but about file or directory it points to. ) Bugfix: the %apache_length parameter logged the negative length of the response header if the no response was transferred to a client. 2005-03-01 23:20:36 +08:00			`typedef volatile ngx_atomic_uint_t ngx_atomic_t;`
nginx-0.3.2-RELEASE import ) Feature: the Sun Studio 10 C compiler support. ) Feature: the "proxy_upstream_max_fails", "proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", and "fastcgi_upstream_fail_timeout" directives. 2005-10-12 21:50:36 +08:00			`#define NGX_ATOMIC_T_LEN sizeof("-2147483648") - 1`
nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00

nginx-0.1.5-RELEASE import ) Bugfix: on Solaris and Linux there may be too many "recvmsg() returned not enough data" alerts. ) Bugfix: there were the "writev() failed (22: Invalid argument)" errors on Solaris in proxy mode without sendfile. On other platforms that do not support sendfile at all the process got caught in an endless loop. ) Bugfix: segmentation fault on Solaris in proxy mode and using sendfile. ) Bugfix: segmentation fault on Solaris. ) Bugfix: on-line upgrade did not work on Linux. ) Bugfix: the ngx_http_autoindex_module module did not escape the spaces, the quotes, and the percent signs in the directory listing. ) Change: the decrease of the copy operations. ) Feature: the userid_p3p directive. 2004-11-11 22:07:14 +08:00			`#if defined( __WATCOMC__ ) \|\| defined( __BORLANDC__ ) \|\| ( _MSC_VER >= 1300 )`
nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00
nginx-0.0.11-2004-09-22-20:18:21 import 2004-09-23 00:18:21 +08:00			`/* the new SDK headers */`

nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00			`#define ngx_atomic_cmp_set(lock, old, set) \`
			`(InterlockedCompareExchange((long *) lock, set, old) == old)`

			`#else`

nginx-0.0.11-2004-09-22-20:18:21 import 2004-09-23 00:18:21 +08:00			`/* the old MS VC6.0SP2 SDK headers */`

nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00			`#define ngx_atomic_cmp_set(lock, old, set) \`
			`(InterlockedCompareExchange((void *) lock, (void ) set, (void *) old) \`
			`== (void *) old)`

			`#endif`


nginx-0.3.2-RELEASE import ) Feature: the Sun Studio 10 C compiler support. ) Feature: the "proxy_upstream_max_fails", "proxy_upstream_fail_timeout", "fastcgi_upstream_max_fails", and "fastcgi_upstream_fail_timeout" directives. 2005-10-12 21:50:36 +08:00			`#define ngx_atomic_fetch_add(p, add) InterlockedExchangeAdd((long *) p, add)`


nginx-0.3.3-RELEASE import ) Change: the "bl" and "af" parameters of the "listen" directive was renamed to the "backlog" and "accept_filter". ) Feature: the "rcvbuf" and "sndbuf" parameters of the "listen" directive. ) Change: the "$msec" log parameter does not require now the additional the gettimeofday() system call. ) Feature: the -t switch now tests the "listen" directives. ) Bugfix: if the invalid address was specified in the "listen" directive, then after the -HUP signal nginx left an open socket in the CLOSED state. ) Bugfix: the mime type may be incorrectly set to default value for index file with variable in the name; the bug had appeared in 0.3.0. ) Feature: the "timer_resolution" directive. ) Feature: the millisecond "$upstream_response_time" log parameter. ) Bugfix: a temporary file with client request body now is removed just after the response header was transferred to a client. ) Bugfix: OpenSSL 0.9.6 compatibility. ) Bugfix: the SSL certificate and key file paths could not be relative. ) Bugfix: the "ssl_prefer_server_ciphers" directive did not work in the ngx_imap_ssl_module. *) Bugfix: the "ssl_protocols" directive allowed to specify the single protocol only. 2005-10-19 20:33:58 +08:00			`#define ngx_memory_barrier()`


nginx-0.0.7-2004-06-30-19:30:41 import 2004-06-30 23:30:41 +08:00			`void ngx_spinlock(ngx_atomic_t *lock, ngx_uint_t spin);`

			`#define ngx_trylock(lock) (*(lock) == 0 && ngx_atomic_cmp_set(lock, 0, 1))`
			`#define ngx_unlock(lock) *(lock) = 0`


			`#endif /* _NGX_ATOMIC_H_INCLUDED_ */`