Fix compiler warning (#5318)

* fixed compiler maybe-uninitialized warning

* fixed: using delete to release object created by new

* fixed compiler warning: ISO C++ forbids converting a string constant to 'char*' and using ZPP api

* fixed compiler warning: 'recv_size' may be used uninitialized and comparison of integer expressions of different signedness

Author: Appla

ext-src/swoole_client_coro.cc

@@ -505,7 +505,7 @@ static PHP_METHOD(swoole_client_coro, peek) {
 
     CLIENT_CORO_GET_SOCKET_SAFE(cli);
 
-    buf = (char *) emalloc(buf_len + 1);
+    buf = (char *) emalloc((size_t)buf_len + 1);
     ret = cli->peek(buf, buf_len);
     if (ret < 0) {
         php_swoole_socket_set_error_properties(ZEND_THIS, cli);

ext-src/swoole_pgsql.cc

@@ -101,6 +101,8 @@ PGconn *swoole_pgsql_connectdb(const char *conninfo) {
             event = SW_EVENT_WRITE;
             break;
         default:
+            // should not be here including PGRES_POLLING_ACTIVE
+            abort();
             break;
         }
 

ext-src/swoole_postgresql_coro.cc

@@ -1533,12 +1533,16 @@ static PHP_METHOD(swoole_postgresql_coro, createLOB) {
 }
 
 static PHP_METHOD(swoole_postgresql_coro, openLOB) {
-    Oid oid = 0;
-    char *modestr = "rb";
-    size_t modestrlen;
-    if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "l|s", &oid, &modestr, &modestrlen)) {
-        RETURN_THROWS();
-    }
+    zend_long oid = 0;
+    // default: "rb"
+    zend_string *mode_str = NULL;
+    int mode = INV_READ;
+
+    ZEND_PARSE_PARAMETERS_START(1, 2)
+    Z_PARAM_LONG(oid)
+    Z_PARAM_OPTIONAL
+    Z_PARAM_STR(mode_str)
+    ZEND_PARSE_PARAMETERS_END();
 
     PGObject *object = php_swoole_postgresql_coro_get_object(ZEND_THIS);
     if (!object || !object->conn) {
@@ -1549,9 +1553,7 @@ static PHP_METHOD(swoole_postgresql_coro, openLOB) {
         RETURN_FALSE;
     }
 
-    int mode = INV_READ;
-
-    if (strpbrk(modestr, "+w")) {
+    if (mode_str && strpbrk(ZSTR_VAL(mode_str), "+w")) {
         mode = INV_READ | INV_WRITE;
     }
 
@@ -1579,11 +1581,11 @@ static PHP_METHOD(swoole_postgresql_coro, openLOB) {
 }
 
 static PHP_METHOD(swoole_postgresql_coro, unlinkLOB) {
-    Oid oid = 0;
+    zend_long oid = 0;
 
-    if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS(), "l", &oid)) {
-        RETURN_THROWS();
-    }
+    ZEND_PARSE_PARAMETERS_START(1, 1)
+    Z_PARAM_LONG(oid)
+    ZEND_PARSE_PARAMETERS_END();
 
     PGObject *object = php_swoole_postgresql_coro_get_object(ZEND_THIS);
     if (!object || !object->conn) {

ext-src/swoole_runtime.cc

@@ -1098,7 +1098,7 @@ static php_stream *socket_create(const char *proto,
 
     stream = php_stream_alloc_rel(&socket_ops, abstract, persistent_id, "r+");
     if (stream == nullptr) {
-        pefree(abstract, persistent_id ? 1 : 0);
+        delete abstract;
         goto _failed;
     }
 

src/protocol/base.cc

@@ -110,7 +110,7 @@ int Protocol::recv_with_length_protocol(network::Socket *socket, String *buffer)
     PacketLength pl{};
     ssize_t package_length;
     uint8_t _package_length_size = get_package_length_size ? get_package_length_size(socket) : package_length_size;
-    uint32_t recv_size;
+    uint32_t recv_size = 0;
     ssize_t recv_n = 0;
 
     // protocol error