use malloc() in ngx_win32_rename_file, set crit level instead of error

src/http/modules/ngx_http_dav_module.c

diff --git a/src/http/modules/ngx_http_dav_module.c b/src/http/modules/ngx_http_dav_module.c
index 854627c..b9d01f3 100644
--- a/src/http/modules/ngx_http_dav_module.c
+++ b/src/http/modules/ngx_http_dav_module.c
@@ -295,7 +295,7 @@
 #if (NGX_WIN32)
 
     if (err == NGX_EEXIST) {
-        if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) {
+        if (ngx_win32_rename_file(temp, &path, r->connection->log) == NGX_OK) {
 
             if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
                 goto ok;

src/http/ngx_http_upstream.c

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index e51638b..3d72499 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -2224,7 +2224,7 @@
 #if (NGX_WIN32)
 
     if (err == NGX_EEXIST) {
-        if (ngx_win32_rename_file(temp, &path, r->pool) != NGX_ERROR) {
+        if (ngx_win32_rename_file(temp, &path, r->connection->log) == NGX_OK) {
 
             if (ngx_rename_file(temp->data, path.data) != NGX_FILE_ERROR) {
                 return;

src/os/win32/ngx_files.c

diff --git a/src/os/win32/ngx_files.c b/src/os/win32/ngx_files.c
index e74dc52..9e5feba 100644
--- a/src/os/win32/ngx_files.c
+++ b/src/os/win32/ngx_files.c
@@ -201,14 +201,14 @@
 
 
 ngx_int_t
-ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_pool_t *pool)
+ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log)
 {
     u_char             *name;
     ngx_int_t           rc;
     ngx_uint_t          collision;
     ngx_atomic_uint_t   num;
 
-    name = ngx_palloc(pool, to->len + 1 + 10 + 1 + sizeof("DELETE"));
+    name = ngx_alloc(to->len + 1 + 10 + 1 + sizeof("DELETE"), log);
     if (name == NULL) {
         return NGX_ERROR;
     }
@@ -230,7 +230,7 @@
 
         collision = 1;
 
-        ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "MoveFile() failed");
+        ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed");
     }
 
     if (MoveFile((const char *) from->data, (const char *) to->data) == 0) {
@@ -241,15 +241,17 @@
     }
 
     if (DeleteFile((const char *) name) == 0) {
-        ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "DeleteFile() failed");
+        ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "DeleteFile() failed");
     }
 
     if (rc == NGX_ERROR) {
-        ngx_log_error(NGX_LOG_ERR, pool->log, ngx_errno, "MoveFile() failed");
+        ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "MoveFile() failed");
     }
 
     /* mutex_unlock() */
 
+    ngx_free(name);
+
     return rc;
 }
 

src/os/win32/ngx_files.h

diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
index 560e91c..799e0b0 100644
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -86,8 +86,7 @@
 
 #define ngx_rename_file(o, n)       MoveFile((const char *) o, (const char *) n)
 #define ngx_rename_file_n           "MoveFile()"
-ngx_int_t ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to,
-    ngx_pool_t *pool);
+ngx_int_t ngx_win32_rename_file(ngx_str_t *from, ngx_str_t *to, ngx_log_t *log);