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 +1,99 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: curl_multi_wakeup
+Section: 3
+Source: libcurl
+See-also:
+  - curl_multi_poll (3)
+  - curl_multi_wait (3)
+Protocol:
+  - All
+Added-in: 7.68.0
+---
+
+# NAME
+
+curl_multi_wakeup - wake up a sleeping curl_multi_poll call
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLMcode curl_multi_wakeup(CURLM *multi_handle);
+~~~
+
+# DESCRIPTION
+
+This function can be called from any thread and it wakes up a sleeping
+curl_multi_poll(3) call that is currently (or is about to be) waiting
+for activity or a timeout.
+
+If the function is called when there is no curl_multi_poll(3) call, it
+causes the next call to return immediately.
+
+Calling this function only guarantees to wake up the current (or the next if
+there is no current) curl_multi_poll(3) call, which means it is possible
+that multiple calls to this function wake up the same waiting operation.
+
+This function has no effect on curl_multi_wait(3) calls.
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+extern int time_to_die(void);
+extern int set_something_to_signal_thread_1_to_exit(void);
+extern int decide_to_stop_thread1();
+
+int main(void)
+{
+  CURL *easy;
+  CURLM *multi = curl_multi_init();
+  int still_running;
+
+  easy = curl_easy_init();
+
+  /* add the individual easy handle */
+  curl_multi_add_handle(multi, easy);
+
+  /* this is thread 1 */
+  do {
+    CURLMcode mc;
+    int numfds;
+
+    mc = curl_multi_perform(multi, &still_running);
+
+    if(mc == CURLM_OK) {
+      /* wait for activity, timeout or wakeup */
+      mc = curl_multi_poll(multi, NULL, 0, 10000, &numfds);
+    }
+
+    if(time_to_die())
+      return 1;
+
+  } while(still_running);
+
+  curl_multi_remove_handle(multi, easy);
+
+  /* this is thread 2 */
+
+  if(decide_to_stop_thread1()) {
+
+    set_something_to_signal_thread_1_to_exit();
+
+    curl_multi_wakeup(multi);
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+This function returns a CURLMcode indicating success or error.
+
+CURLM_OK (0) means everything was OK, non-zero means an error occurred, see
+libcurl-errors(3).