mirror of
https://github.com/warmcat/libwebsockets.git
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148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
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* libwebsockets-test-server - libwebsockets test implementation
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*
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* Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
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*
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* This file is made available under the Creative Commons CC0 1.0
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* Universal Public Domain Dedication.
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*
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* The person who associated a work with this deed has dedicated
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* the work to the public domain by waiving all of his or her rights
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* to the work worldwide under copyright law, including all related
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* and neighboring rights, to the extent allowed by law. You can copy,
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* modify, distribute and perform the work, even for commercial purposes,
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* all without asking permission.
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*
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* The test apps are intended to be adapted for use in your code, which
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* may be proprietary. So unlike the library itself, they are licensed
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* Public Domain.
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*/
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#include "../lib/libwebsockets.h"
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#include <string.h>
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#include <stdlib.h>
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#define LWS_SS_VERSIONS 3
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struct lws_ss_dumps {
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char buf[32768];
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int length;
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};
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static struct lws_ss_dumps d[LWS_SS_VERSIONS];
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static int last_dump;
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static uv_timer_t timeout_watcher;
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static struct lws_context *context;
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static int tow_flag;
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struct per_session_data__server_status {
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int ver;
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int pos;
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};
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static const struct lws_protocols protocols[];
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static void
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uv_timeout_cb_server_status(uv_timer_t *w
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#if UV_VERSION_MAJOR == 0
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, int status
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#endif
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)
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{
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int n;
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last_dump = (last_dump + 1) % LWS_SS_VERSIONS;
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n = lws_json_dump_context(context, d[last_dump].buf + LWS_PRE,
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sizeof(d[0].buf) - LWS_PRE);
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d[last_dump].length = n;
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lws_callback_on_writable_all_protocol(context, &protocols[0]);
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}
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static int
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callback_lws_server_status(struct lws *wsi, enum lws_callback_reasons reason,
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void *user, void *in, size_t len)
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{
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struct lws_protocol_vhost_options *pvo =
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(struct lws_protocol_vhost_options *)in;
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int m, period = 1000;
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switch (reason) {
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case LWS_CALLBACK_ESTABLISHED:
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lwsl_info("%s: LWS_CALLBACK_ESTABLISHED\n", __func__);
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lws_callback_on_writable(wsi);
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break;
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case LWS_CALLBACK_PROTOCOL_INIT: /* per vhost */
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if (tow_flag)
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break;
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while (pvo) {
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if (!strcmp(pvo->name, "update-ms"))
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period = atoi(pvo->value);
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pvo = pvo->next;
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}
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context = lws_get_context(wsi);
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uv_timer_init(lws_uv_getloop(context, 0), &timeout_watcher);
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uv_timer_start(&timeout_watcher,
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uv_timeout_cb_server_status, 2000, period);
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tow_flag = 1;
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break;
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case LWS_CALLBACK_PROTOCOL_DESTROY: /* per vhost */
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if (!tow_flag)
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break;
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uv_timer_stop(&timeout_watcher);
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tow_flag = 0;
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break;
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case LWS_CALLBACK_SERVER_WRITEABLE:
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m = lws_write(wsi, (unsigned char *)
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d[last_dump].buf + LWS_PRE, d[last_dump].length,
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LWS_WRITE_TEXT);
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if (m < 0)
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return -1;
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break;
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case LWS_CALLBACK_RECEIVE:
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break;
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default:
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break;
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}
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return 0;
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}
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static const struct lws_protocols protocols[] = {
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{
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"lws-server-status",
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callback_lws_server_status,
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sizeof(struct per_session_data__server_status),
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1024,
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},
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};
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LWS_VISIBLE int
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init_protocol_lws_server_status(struct lws_context *context,
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struct lws_plugin_capability *c)
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{
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if (c->api_magic != LWS_PLUGIN_API_MAGIC) {
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lwsl_err("Plugin API %d, library API %d",
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LWS_PLUGIN_API_MAGIC, c->api_magic);
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return 1;
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}
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c->protocols = protocols;
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c->count_protocols = ARRAY_SIZE(protocols);
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c->extensions = NULL;
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c->count_extensions = 0;
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return 0;
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}
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LWS_VISIBLE int
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destroy_protocol_lws_server_status(struct lws_context *context)
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{
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return 0;
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}
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