fix: force TCP binding to send the data immediately

Angelmmiguel · Angelmmiguel · commit 81c873689338 · 2025-04-26T13:11:40.000+02:00
diff --git a/packages/tcpip/wasm/tcp.c b/packages/tcpip/wasm/tcp.c
@@ -31,6 +31,12 @@ uint16_t send_tcp_chunk(struct tcp_pcb *conn, uint8_t *chunk, uint16_t length) {
     return 0;
   }
 
+  // Force sending chunks immediately
+  err_t out_result = tcp_output(conn);
+  if (out_result != ERR_OK) {
+    return 0;
+  }
+
   return bytes_to_send;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -31,6 +31,12 @@ uint16_t send_tcp_chunk(struct tcp_pcb conn, uint8_t chunk, uint16_t length) {`
`31`	`31`	`return 0;`
`32`	`32`	`}`
`33`	`33`
	`34`	`+ // Force sending chunks immediately`
	`35`	`+ err_t out_result = tcp_output(conn);`
	`36`	`+ if (out_result != ERR_OK) {`
	`37`	`+ return 0;`
	`38`	`+ }`
	`39`	`+`
`34`	`40`	`return bytes_to_send;`
`35`	`41`	`}`
`36`	`42`