Update networking layer w/ CURL and emscripten impl

2025-11-08 01:50:36 +11:00
parent a17925904d
commit f6874dc55a
4105 changed files with 694617 additions and 179 deletions
@@ -0,0 +1,80 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_PIPEWAIT
+Section: 3
+Source: libcurl
+See-also:
+  - CURLMOPT_MAX_HOST_CONNECTIONS (3)
+  - CURLMOPT_PIPELINING (3)
+  - CURLOPT_FORBID_REUSE (3)
+  - CURLOPT_FRESH_CONNECT (3)
+Protocol:
+  - HTTP
+Added-in: 7.43.0
+---
+
+# NAME
+
+CURLOPT_PIPEWAIT - wait for multiplexing
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PIPEWAIT, long wait);
+~~~
+
+# DESCRIPTION
+
+Set *wait* to 1L to tell libcurl to prefer to wait for a connection to
+confirm or deny that it can do multiplexing before continuing.
+
+When about to perform a new transfer that allows multiplexing, libcurl checks
+for existing connections to use. If no such connection exists it immediately
+continues and creates a fresh new connection to use.
+
+By setting this option to 1 - and having CURLMOPT_PIPELINING(3) enabled
+for the multi handle this transfer is associated with - libcurl instead waits
+for the connection to reveal if it is possible to multiplex on before it
+continues. This enables libcurl to much better keep the number of connections
+to a minimum when using multiplexing protocols.
+
+With this option set, libcurl prefers to wait and reuse an existing connection
+for multiplexing rather than the opposite: prefer to open a new connection
+rather than waiting.
+
+The waiting time is as long as it takes for the connection to get up and for
+libcurl to get the necessary response back that informs it about its protocol
+and support level.
+
+# DEFAULT
+
+0 (off)
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
+    curl_easy_setopt(curl, CURLOPT_PIPEWAIT, 1L);
+
+    /* now add this easy handle to the multi handle */
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+curl_easy_setopt(3) returns a CURLcode indicating success or error.
+
+CURLE_OK (0) means everything was OK, non-zero means an error occurred, see
+libcurl-errors(3).