mirror of
https://github.com/warmcat/libwebsockets.git
synced 2025-03-16 00:00:07 +01:00
498a4e2bd7
wsi timeout, wsi hrtimer, sequencer timeout and vh-protocol timer all now participate on a single sorted us list. The whole idea of polling wakes is thrown out, poll waits ignore the timeout field and always use infinite timeouts. Introduce a public api that can schedule its own callback from the event loop with us resolution (usually ms is all the platform can do). Upgrade timeouts and sequencer timeouts to also be able to use us resolution. Introduce a prepared fakewsi in the pt, so we don't have to allocate one on the heap when we need it. Directly handle vh-protocol timer if LWS_MAX_SMP == 1
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*
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* lws-minimal-ws-client-pmd-bulk
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*
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* Written in 2010-2019 by 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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* This demonstrates a ws client that sends bulk data in multiple
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* ws fragments, in a way compatible with per-message deflate.
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*
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* It shows how to send huge messages without needing a lot of memory.
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*
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* Build and start the minimal-examples/ws-server/minmal-ws-server-pmd-bulk
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* example first. Running this sends a large message to the server and
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* exits.
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*
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* If you give both sides the -n commandline option, it disables permessage-
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* deflate compression extension.
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*/
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#include <libwebsockets.h>
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#include <string.h>
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#include <signal.h>
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#define LWS_PLUGIN_STATIC
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#include "protocol_lws_minimal_pmd_bulk.c"
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static struct lws_protocols protocols[] = {
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{ "http", lws_callback_http_dummy, 0, 0 },
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LWS_PLUGIN_PROTOCOL_MINIMAL_PMD_BULK,
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{ NULL, NULL, 0, 0 } /* terminator */
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};
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static int interrupted, options;
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/* pass pointers to shared vars to the protocol */
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static const struct lws_protocol_vhost_options pvo_options = {
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NULL,
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NULL,
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"options", /* pvo name */
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(void *)&options /* pvo value */
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};
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static const struct lws_protocol_vhost_options pvo_interrupted = {
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&pvo_options,
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NULL,
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"interrupted", /* pvo name */
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(void *)&interrupted /* pvo value */
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};
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static const struct lws_protocol_vhost_options pvo = {
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NULL, /* "next" pvo linked-list */
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&pvo_interrupted, /* "child" pvo linked-list */
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"lws-minimal-pmd-bulk", /* protocol name we belong to on this vhost */
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"" /* ignored */
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};
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static const struct lws_extension extensions[] = {
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{
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"permessage-deflate",
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lws_extension_callback_pm_deflate,
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"permessage-deflate"
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"; client_no_context_takeover"
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"; client_max_window_bits"
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},
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{ NULL, NULL, NULL /* terminator */ }
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};
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void sigint_handler(int sig)
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{
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interrupted = 1;
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}
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int main(int argc, const char **argv)
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{
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struct lws_context_creation_info info;
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struct lws_context *context;
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const char *p;
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int n = 0, logs = LLL_USER | LLL_ERR | LLL_WARN | LLL_NOTICE
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/* for LLL_ verbosity above NOTICE to be built into lws,
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* lws must have been configured and built with
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* -DCMAKE_BUILD_TYPE=DEBUG instead of =RELEASE */
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/* | LLL_INFO */ /* | LLL_PARSER */ /* | LLL_HEADER */
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/* | LLL_EXT */ /* | LLL_CLIENT */ /* | LLL_LATENCY */
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/* | LLL_DEBUG */;
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signal(SIGINT, sigint_handler);
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if ((p = lws_cmdline_option(argc, argv, "-d")))
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logs = atoi(p);
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lws_set_log_level(logs, NULL);
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lwsl_user("LWS minimal ws client + permessage-deflate + multifragment bulk message\n");
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lwsl_user(" needs minimal-ws-server-pmd-bulk running to communicate with\n");
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lwsl_user(" %s [-n (no exts)] [-c (compressible)]\n", argv[0]);
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memset(&info, 0, sizeof info); /* otherwise uninitialized garbage */
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info.port = CONTEXT_PORT_NO_LISTEN;
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info.protocols = protocols;
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info.pvo = &pvo;
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if (!lws_cmdline_option(argc, argv, "-n"))
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info.extensions = extensions;
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info.pt_serv_buf_size = 32 * 1024;
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if (lws_cmdline_option(argc, argv, "-c"))
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options |= 1;
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/*
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* since we know this lws context is only ever going to be used with
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* one client wsis / fds / sockets at a time, let lws know it doesn't
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* have to use the default allocations for fd tables up to ulimit -n.
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* It will just allocate for 1 internal and 1 (+ 1 http2 nwsi) that we
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* will use.
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*/
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info.fd_limit_per_thread = 1 + 1 + 1;
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context = lws_create_context(&info);
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if (!context) {
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lwsl_err("lws init failed\n");
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return 1;
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}
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while (n >= 0 && !interrupted)
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n = lws_service(context, 0);
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lws_context_destroy(context);
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lwsl_user("Completed %s\n", interrupted == 2 ? "OK" : "failed");
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return interrupted != 2;
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}
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