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 +1,89 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_SHARE
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_COOKIE (3)
+  - CURLSHOPT_SHARE (3)
+Protocol:
+  - All
+Added-in: 7.10
+---
+
+# NAME
+
+CURLOPT_SHARE - share handle to use
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SHARE, CURLSH *share);
+~~~
+
+# DESCRIPTION
+
+Pass a *share* handle as a parameter. The share handle must have been created
+by a previous call to curl_share_init(3). Setting this option, makes this curl
+handle use the data from the shared handle instead of keeping the data to
+itself. This enables several curl handles to share data. If the curl handles
+are used simultaneously in multiple threads, you **must** use the locking
+methods in the share handle. See curl_share_setopt(3) for details.
+
+If you add a share that is set to share cookies, your easy handle uses that
+cookie cache and get the cookie engine enabled. If you stop sharing an object
+that was using cookies (or change to another object that does not share
+cookies), the easy handle gets its cookie engine disabled.
+
+Data that the share object is not set to share is dealt with the usual way, as
+if no share was used.
+
+Set this option to NULL again to stop using that share object.
+
+# DEFAULT
+
+NULL
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  CURL *curl2 = curl_easy_init(); /* a second handle */
+  if(curl) {
+    CURLcode res;
+    CURLSH *shobject = curl_share_init();
+    curl_share_setopt(shobject, CURLSHOPT_SHARE, CURL_LOCK_DATA_COOKIE);
+
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
+    curl_easy_setopt(curl, CURLOPT_COOKIEFILE, "");
+    curl_easy_setopt(curl, CURLOPT_SHARE, shobject);
+    res = curl_easy_perform(curl);
+    curl_easy_cleanup(curl);
+
+    /* the second handle shares cookies from the first */
+    curl_easy_setopt(curl2, CURLOPT_URL, "https://example.com/second");
+    curl_easy_setopt(curl2, CURLOPT_COOKIEFILE, "");
+    curl_easy_setopt(curl2, CURLOPT_SHARE, shobject);
+    res = curl_easy_perform(curl2);
+    curl_easy_cleanup(curl2);
+
+    curl_share_cleanup(shobject);
+  }
+}
+~~~
+
+# %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).