Add TCP_NOTSENT_LOWAT socket option

devnexen · cmb69 · commit 1f4830f21af0 · 2022-05-16T16:01:38.000+02:00
Can be used to limit the amount of unsent data per socket. Closes GH-8559.
diff --git a/NEWS b/NEWS
@@ -49,6 +49,9 @@ PHP                                                                        NEWS
   . Fixed bug GH-7787 (Improve session write failure message for user error
     handlers). (ilutov)
 
+- Sockets:
+  . Added TCP_NOTSENT_LOWAT socket option. (David Carlier)
+
 - Sodium:
   . Added sodium_crypto_stream_xchacha20_xor_ic(). (Scott)
 
diff --git a/UPGRADING b/UPGRADING
@@ -203,6 +203,7 @@ PHP 8.2 UPGRADE NOTES
 
 - Sockets:
   . SO_INCOMING_CPU
+  . TCP_NOTSENT_LOWAT
 
 ========================================
 11. Changes to INI File Handling
diff --git a/ext/sockets/sockets.c b/ext/sockets/sockets.c
@@ -553,6 +553,9 @@ static PHP_MINIT_FUNCTION(sockets)
 #ifdef TCP_NODELAY
 	REGISTER_LONG_CONSTANT("TCP_NODELAY",   TCP_NODELAY,    CONST_CS | CONST_PERSISTENT);
 #endif
+#ifdef TCP_NOTSENT_LOWAT
+	REGISTER_LONG_CONSTANT("TCP_NOTSENT_LOWAT",  TCP_NOTSENT_LOWAT,   CONST_CS | CONST_PERSISTENT);
+#endif
 #ifdef TCP_DEFER_ACCEPT
 	REGISTER_LONG_CONSTANT("TCP_DEFER_ACCEPT",   TCP_DEFER_ACCEPT,    CONST_CS | CONST_PERSISTENT);
 #endif
