1 files changed, 22 insertions, 13 deletions

diff --git a/src/os/win32/ngx_shmem.c b/src/os/win32/ngx_shmem.c
index 667e37eaf..e4b357a97 100644
--- a/src/os/win32/ngx_shmem.c
+++ b/src/os/win32/ngx_shmem.c
@@ -11,27 +11,36 @@
 ngx_int_t
 ngx_shm_alloc(ngx_shm_t *shm)
 {
-    u_char  *name;
+    u_char    *name;
+    uint64_t   size;
 
     name = ngx_alloc(shm->name.len + 2 + sizeof(NGX_INT32_LEN), shm->log);
     if (name == NULL) {
         return NGX_ERROR;
     }
 
-    ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique);
+    (void) ngx_sprintf(name, "%V_%s%Z", &shm->name, ngx_unique);
 
     ngx_set_errno(0);
 
+    size = shm->size;
+
     shm->handle = CreateFileMapping(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE,
-                                    0, shm->size, (char *) name);
+                                    (u_long) (size >> 32),
+                                    (u_long) (size & 0xffffffff),
+                                    (char *) name);
 
     if (shm->handle == NULL) {
         ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
                       "CreateFileMapping(%uz, %s) failed",
-                      shm->size, shm->name.data);
-        goto failed;
+                      shm->size, name);
+        ngx_free(name);
+
+        return NGX_ERROR;
     }
 
+    ngx_free(name);
+
     if (ngx_errno == ERROR_ALREADY_EXISTS) {
         shm->exists = 1;
     }
@@ -43,17 +52,15 @@ ngx_shm_alloc(ngx_shm_t *shm)
     }
 
     ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
-                  "MapViewOfFile(%uz) failed", shm->size);
+                  "MapViewOfFile(%uz) of file mapping \"%V\" failed",
+                  shm->size, &shm->name);
 
     if (CloseHandle(shm->handle) == 0) {
         ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
-                      "CloseHandle() failed");
+                      "CloseHandle() of file mapping \"%V\" failed",
+                      &shm->name);
     }
 
-failed:
-
-    ngx_free(name);
-
     return NGX_ERROR;
 }
 
@@ -63,11 +70,13 @@ ngx_shm_free(ngx_shm_t *shm)
 {
     if (UnmapViewOfFile(shm->addr) == 0) {
         ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
-                      "UnmapViewOfFile(%p) failed", shm->addr);
+                      "UnmapViewOfFile(%p) of file mapping \"%V\" failed",
+                      shm->addr, &shm->name);
     }
 
     if (CloseHandle(shm->handle) == 0) {
         ngx_log_error(NGX_LOG_ALERT, shm->log, ngx_errno,
-                      "CloseHandle() failed");
+                      "CloseHandle() of file mapping \"%V\" failed",
+                      &shm->name);
     }
 }