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 +1,82 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_STREAM_WEIGHT
+Section: 3
+Source: libcurl
+See-also:
+  - CURLMOPT_PIPELINING (3)
+  - CURLOPT_PIPEWAIT (3)
+  - CURLOPT_STREAM_DEPENDS (3)
+  - CURLOPT_STREAM_DEPENDS_E (3)
+Protocol:
+  - HTTP
+Added-in: 7.46.0
+---
+
+# NAME
+
+CURLOPT_STREAM_WEIGHT - numerical stream weight
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_STREAM_WEIGHT, long weight);
+~~~
+
+# DESCRIPTION
+
+Set the long *weight* to a number between 1 and 256.
+
+When using HTTP/2, this option sets the individual weight for this particular
+stream used by the easy *handle*. Setting and using weights only makes
+sense and is only usable when doing multiple streams over the same
+connections, which thus implies that you use CURLMOPT_PIPELINING(3).
+
+This option can be set during transfer and causes the updated weight info get
+sent to the server the next time an HTTP/2 frame is sent to the server.
+
+See section 5.3 of RFC 7540 for protocol details.
+
+Streams with the same parent should be allocated resources proportionally
+based on their weight. If you have two streams going, stream A with weight 16
+and stream B with weight 32, stream B gets two thirds (32/48) of the available
+bandwidth (assuming the server can send off the data equally for both
+streams).
+
+# DEFAULT
+
+16
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  CURL *curl2 = curl_easy_init(); /* a second handle */
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/one");
+    curl_easy_setopt(curl, CURLOPT_STREAM_WEIGHT, 10L);
+
+    /* the second has twice the weight */
+    curl_easy_setopt(curl2, CURLOPT_URL, "https://example.com/two");
+    curl_easy_setopt(curl2, CURLOPT_STREAM_WEIGHT, 20L);
+
+    /* then add both to a multi handle and transfer them */
+  }
+}
+~~~
+
+# %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).