mirror of
https://github.com/warmcat/libwebsockets.git
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86 lines
2 KiB
C
86 lines
2 KiB
C
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/*
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* pico-sspc-binance
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*
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* Written in 2010-2021 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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* The SS user struct for the "GET" stream... it reads from
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* https://libwebsockets.org/index.html every 5s
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*/
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#include "private.h"
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typedef struct {
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struct lws_ss_handle *ss;
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void *opaque_data;
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lws_sorted_usec_list_t sul5;
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} get_t;
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static void
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sul_start_get(lws_sorted_usec_list_t *sul)
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{
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get_t *g = lws_container_of(sul, get_t, sul5);
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lwsl_ss_notice(g->ss, "conn");
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lws_ss_request_tx(g->ss);
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lws_sul_schedule(lws_ss_get_context(g->ss), 0, sul, sul_start_get,
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5 * LWS_US_PER_SEC);
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}
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static lws_ss_state_return_t
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get_rx(void *userobj, const uint8_t *in, size_t len, int flags)
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{
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get_t *g = (get_t *)userobj;
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lwsl_ss_notice(g->ss, "RX %u, flags 0x%x",
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(unsigned int)len, (unsigned int)flags);
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if (len) {
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lwsl_hexdump_notice(in, 16);
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if (len >= 16)
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lwsl_hexdump_notice(in + len - 16, 16);
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}
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return LWSSSSRET_OK;
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}
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static lws_ss_state_return_t
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get_state(void *userobj, void *h_src, lws_ss_constate_t state,
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lws_ss_tx_ordinal_t ack)
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{
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get_t *g = (get_t *)userobj;
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lwsl_ss_notice(g->ss, "%s (%d), ord 0x%x",
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lws_ss_state_name((int)state), state, (unsigned int)ack);
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switch (state) {
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case LWSSSCS_CREATING:
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/*
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* ... also let's start a sul that creates a second stream to
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* GET from libwebsockets.org every 5s, showing we are running
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* multiple SS on the transport successfully.
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*/
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lws_sul_schedule(lws_ss_get_context(g->ss), 0, &g->sul5,
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sul_start_get, 5 * LWS_US_PER_SEC);
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break;
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case LWSSSCS_DESTROYING:
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lws_sul_cancel(&g->sul5);
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break;
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}
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return LWSSSSRET_OK;
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}
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const lws_ss_info_t ssi_get = {
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.handle_offset = offsetof(get_t, ss),
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.opaque_user_data_offset = offsetof(get_t, opaque_data),
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.rx = get_rx,
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.state = get_state,
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.user_alloc = sizeof(get_t),
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.streamtype = "mintest-lws", /* bind to this policy */
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};
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