nginx 1.1.9 *) Change: now double quotes are encoded in an "echo" SSI-command output. Thanks to Zaur Abasmirzoev. *) Feature: the "valid" parameter of the "resolver" directive. By default TTL returned by a DNS server is used. Thanks to Kirill A. Korinskiy. *) Bugfix: nginx might hang after a worker process abnormal termination. *) Bugfix: a segmentation fault might occur in a worker process if SNI was used; the bug had appeared in 1.1.2. *) Bugfix: in the "keepalive_disable" directive; the bug had appeared in 1.1.8. Thanks to Alexander Usov. *) Bugfix: SIGWINCH signal did not work after first binary upgrade; the bug had appeared in 1.1.1. *) Bugfix: backend responses with length not matching "Content-Length" header line are no longer cached. *) Bugfix: in the "scgi_param" directive, if complex parameters were used. *) Bugfix: in the "epoll" event method. Thanks to Yichun Zhang. *) Bugfix: in the ngx_http_flv_module. Thanks to Piotr Sikora. *) Bugfix: in the ngx_http_mp4_module. *) Bugfix: IPv6 addresses are now handled properly in a request line and in a "Host" request header line. *) Bugfix: "add_header" and "expires" directives did not work if a request was proxied and response status code was 206. *) Bugfix: nginx could not be built on FreeBSD 10. *) Bugfix: nginx could not be built on AIX.

--- a/src/core/ngx_shmtx.h
+++ b/src/core/ngx_shmtx.h
@@ -13,9 +13,18 @@
 
 
 typedef struct {
+    ngx_atomic_t   lock;
+#if (NGX_HAVE_POSIX_SEM)
+    ngx_atomic_t   wait;
+#endif
+} ngx_shmtx_sh_t;
+
+
+typedef struct {
 #if (NGX_HAVE_ATOMIC_OPS)
     ngx_atomic_t  *lock;
 #if (NGX_HAVE_POSIX_SEM)
+    ngx_atomic_t  *wait;
     ngx_uint_t     semaphore;
     sem_t          sem;
 #endif
@@ -27,11 +36,13 @@ typedef struct {
 } ngx_shmtx_t;
 
 
-ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, void *addr, u_char *name);
+ngx_int_t ngx_shmtx_create(ngx_shmtx_t *mtx, ngx_shmtx_sh_t *addr,
+    u_char *name);
 void ngx_shmtx_destory(ngx_shmtx_t *mtx);
 ngx_uint_t ngx_shmtx_trylock(ngx_shmtx_t *mtx);
 void ngx_shmtx_lock(ngx_shmtx_t *mtx);
 void ngx_shmtx_unlock(ngx_shmtx_t *mtx);
+ngx_uint_t ngx_shmtx_force_unlock(ngx_shmtx_t *mtx, ngx_pid_t pid);
 
 
 #endif /* _NGX_SHMTX_H_INCLUDED_ */