Avoid multipy allocating of request env

Author: laruence

main/fastcgi.c

@@ -794,10 +794,17 @@ fcgi_request *fcgi_init_request(fcgi_request *req, int listen_socket)
 #ifdef _WIN32
 	req->tcp = !GetNamedPipeInfo((HANDLE)_get_osfhandle(req->listen_socket), NULL, NULL, NULL, NULL);
 #endif
+	fcgi_hash_init(&req->env);
 
 	return req;
 }
 
+void fcgi_destroy_request(fcgi_request *req) {
+	if (req->env.buckets) {
+		fcgi_hash_destroy(&req->env);
+	}
+}
+
 static inline ssize_t safe_write(fcgi_request *req, const void *buf, size_t count)
 {
 	int    ret;
@@ -935,7 +942,6 @@ static int fcgi_read_request(fcgi_request *req)
 	req->in_len = 0;
 	req->out_hdr = NULL;
 	req->out_pos = req->out_buf;
-	fcgi_hash_init(&req->env);
 	req->has_env = 1;
 
 	if (safe_read(req, &hdr, sizeof(fcgi_header)) != sizeof(fcgi_header) ||
@@ -1144,7 +1150,6 @@ void fcgi_close(fcgi_request *req, int force, int destroy)
 {
 	if (destroy && req->has_env) {
 		fcgi_hash_clean(&req->env);
-		fcgi_hash_destroy(&req->env);
 		req->has_env = 0;
 	}
 

main/fastcgi.h

@@ -195,6 +195,7 @@ int fcgi_in_shutdown(void);
 void fcgi_terminate(void);
 int fcgi_listen(const char *path, int backlog);
 fcgi_request* fcgi_init_request(fcgi_request *request, int listen_socket);
+void fcgi_destroy_request(fcgi_request *req);
 void fcgi_set_allowed_clients(char *ip);
 int fcgi_accept_request(fcgi_request *req);
 int fcgi_finish_request(fcgi_request *req, int force_close);

sapi/cgi/cgi_main.c

@@ -2101,6 +2101,7 @@ consult the installation file that came with this distribution, or visit \n\
 					break;
 				case 'h':
 				case '?':
+					fcgi_destroy_request(&request);
 					fcgi_shutdown();
 					no_headers = 1;
 					SG(headers_sent) = 1;
@@ -2532,6 +2533,7 @@ consult the installation file that came with this distribution, or visit \n\
 			}
 			/* end of fastcgi loop */
 		}
+		fcgi_destroy_request(&request);
 		fcgi_shutdown();
 
 		if (cgi_sapi_module.php_ini_path_override) {

sapi/fpm/fpm/fpm_main.c

@@ -1972,6 +1972,7 @@ consult the installation file that came with this distribution, or visit \n\
 			}
 			/* end of fastcgi loop */
 		}
+		fcgi_destroy_request(&request);
 		fcgi_shutdown();
 
 		if (cgi_sapi_module.php_ini_path_override) {