Revert "Stop publish examples to mongoose repo"

This reverts commit 1a17e17c462bdd4e1d26d8742f8b7087273e04c2.

PUBLISHED_FROM=80028de308c9a021955d1425d2bfee8feb85f193

examples/websocket_chat/websocket_chat.c

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014 Cesanta Software Limited
+ * All rights reserved
+ */
+
+#include "mongoose.h"
+
+static sig_atomic_t s_signal_received = 0;
+static const char *s_http_port = "8000";
+
+static void signal_handler(int sig_num) {
+  signal(sig_num, signal_handler);  // Reinstantiate signal handler
+  s_signal_received = sig_num;
+}
+
+static int is_websocket(const struct mg_connection *nc) {
+  return nc->flags & MG_F_IS_WEBSOCKET;
+}
+
+static void broadcast(struct mg_connection *nc, const struct mg_str msg) {
+  struct mg_connection *c;
+  char buf[500];
+  char addr[32];
+  mg_sock_addr_to_str(&nc->sa, addr, sizeof(addr),
+                      MG_SOCK_STRINGIFY_IP | MG_SOCK_STRINGIFY_PORT);
+
+  snprintf(buf, sizeof(buf), "%s %.*s", addr, (int) msg.len, msg.p);
+  printf("%s\n", buf); /* Local echo. */
+  for (c = mg_next(nc->mgr, NULL); c != NULL; c = mg_next(nc->mgr, c)) {
+    if (c == nc) continue; /* Don't send to the sender. */
+    mg_send_websocket_frame(c, WEBSOCKET_OP_TEXT, buf, strlen(buf));
+  }
+}
+
+static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
+  switch (ev) {
+    case MG_EV_WEBSOCKET_HANDSHAKE_DONE: {
+      /* New websocket connection. Tell everybody. */
+      broadcast(nc, mg_mk_str("++ joined"));
+      break;
+    }
+    case MG_EV_WEBSOCKET_FRAME: {
+      struct websocket_message *wm = (struct websocket_message *) ev_data;
+      /* New websocket message. Tell everybody. */
+      struct mg_str d = {(char *) wm->data, wm->size};
+      broadcast(nc, d);
+      break;
+    }
+    case MG_EV_CLOSE: {
+      /* Disconnect. Tell everybody. */
+      if (is_websocket(nc)) {
+        broadcast(nc, mg_mk_str("-- left"));
+      }
+      break;
+    }
+  }
+}
+
+int main(void) {
+  struct mg_mgr mgr;
+  struct mg_connection *nc;
+
+  signal(SIGTERM, signal_handler);
+  signal(SIGINT, signal_handler);
+  setvbuf(stdout, NULL, _IOLBF, 0);
+  setvbuf(stderr, NULL, _IOLBF, 0);
+
+  mg_mgr_init(&mgr, NULL);
+
+  nc = mg_bind(&mgr, s_http_port, ev_handler);
+  mg_set_protocol_http_websocket(nc);
+
+  printf("Started on port %s\n", s_http_port);
+  while (s_signal_received == 0) {
+    mg_mgr_poll(&mgr, 200);
+  }
+  mg_mgr_free(&mgr);
+
+  return 0;
+}