nginx-0.3.27-RELEASE import
*) Change: the "variables_hash_max_size" and
"variables_hash_bucket_size" directives.
*) Feature: the $body_bytes_sent variable can be used not only in the
"log_format" directive.
*) Feature: the $ssl_protocol and $ssl_cipher variables.
*) Feature: the cache line size detection for widespread CPUs at start
time.
*) Feature: now the "accept_mutex" directive is supported using
fcntl(2) on platforms different from i386, amd64, sparc64, and ppc.
*) Feature: the "lock_file" directive and the --with-lock-path=PATH
autoconfiguration directive.
*) Bugfix: if the HTTPS protocol was used in the "proxy_pass" directive
then the requests with the body was not transferred.
diff --git a/src/core/ngx_shmtx.c b/src/core/ngx_shmtx.c
new file mode 100644
index 0000000..ac8a300
--- /dev/null
+++ b/src/core/ngx_shmtx.c
@@ -0,0 +1,70 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+#if (NGX_HAVE_ATOMIC_OPS)
+
+
+ngx_int_t
+ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name, ngx_log_t *log)
+{
+ mtx->lock = addr;
+
+ return NGX_OK;
+}
+
+#else
+
+
+ngx_int_t
+ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name, ngx_log_t *log)
+{
+ if (mtx->name) {
+
+ if (ngx_strcmp(name, mtx->name) == 0) {
+ mtx->name = name;
+ mtx->log = log;
+
+ return NGX_OK;
+ }
+
+ ngx_shmtx_destory(mtx);
+ }
+
+ mtx->fd = ngx_open_file(name, NGX_FILE_RDWR, NGX_FILE_CREATE_OR_OPEN);
+
+ if (mtx->fd == NGX_INVALID_FILE) {
+ ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
+ ngx_open_file_n " \"%s\" failed", name);
+ return NGX_ERROR;
+ }
+
+ if (ngx_delete_file(name) == NGX_FILE_ERROR) {
+ ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
+ ngx_delete_file_n " \"%s\" failed", name);
+ }
+
+ mtx->name = name;
+ mtx->log = log;
+
+ return NGX_OK;
+}
+
+
+void
+ngx_shmtx_destory(ngx_shmtx_t *mtx)
+{
+ if (ngx_close_file(mtx->fd) == NGX_FILE_ERROR) {
+ ngx_log_error(NGX_LOG_ALERT, mtx->log, ngx_errno,
+ ngx_close_file_n " \"%s\" failed", mtx->name);
+ }
+}
+
+
+#endif
