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_CONNECTTIMEOUT
+Section: 3
+Source: libcurl
+See-also:
+  - CURLOPT_LOW_SPEED_LIMIT (3)
+  - CURLOPT_MAX_RECV_SPEED_LARGE (3)
+  - CURLOPT_TIMEOUT (3)
+Protocol:
+  - All
+Added-in: 7.7
+---
+
+# NAME
+
+CURLOPT_CONNECTTIMEOUT - timeout for the connect phase
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_CONNECTTIMEOUT, long timeout);
+~~~
+
+# DESCRIPTION
+
+Pass a long. It sets the maximum time in seconds that you allow the connection
+phase to take. This timeout only limits the connection phase, it has no impact
+once libcurl has connected. The connection phase includes the name resolve
+(DNS) and all protocol handshakes and negotiations until there is an
+established connection with the remote side.
+
+Set this option to zero to switch to the default built-in connection timeout -
+300 seconds. See also the CURLOPT_TIMEOUT(3) option.
+
+CURLOPT_CONNECTTIMEOUT_MS(3) is the same function but set in milliseconds.
+
+If both CURLOPT_CONNECTTIMEOUT(3) and CURLOPT_CONNECTTIMEOUT_MS(3)
+are set, the value set last is used.
+
+The connection timeout is included in the general all-covering
+CURLOPT_TIMEOUT(3):
+
+With CURLOPT_CONNECTTIMEOUT(3) set to 3 and CURLOPT_TIMEOUT(3) set
+to 5, the operation can never last longer than 5 seconds, and the connection
+phase cannot last longer than 3 seconds.
+
+With CURLOPT_CONNECTTIMEOUT(3) set to 4 and CURLOPT_TIMEOUT(3) set
+to 2, the operation can never last longer than 2 seconds. Including the
+connection phase.
+
+This option may cause libcurl to use the SIGALRM signal to timeout system
+calls on builds not using asynch DNS. In Unix-like systems, this might cause
+signals to be used unless CURLOPT_NOSIGNAL(3) is set.
+
+# DEFAULT
+
+300
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+
+    /* complete connection within 10 seconds */
+    curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 10L);
+
+    curl_easy_perform(curl);
+  }
+}
+~~~
+
+# %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).