165 lines
3.6 KiB
C
165 lines
3.6 KiB
C
/* stream server example */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <osmocom/core/select.h>
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#include <osmocom/core/talloc.h>
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#include <osmocom/core/msgb.h>
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#include <osmocom/core/logging.h>
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#include <osmocom/core/application.h>
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#include <osmocom/netif/stream.h>
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static void *tall_test;
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#define DSTREAMTEST 0
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struct log_info_cat osmo_stream_srv_test_cat[] = {
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[DSTREAMTEST] = {
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.name = "DSTREAMTEST",
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.description = "STREAMSERVER-mode test",
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.color = "\033[1;35m",
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.enabled = 1, .loglevel = LOGL_DEBUG,
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},
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};
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const struct log_info osmo_stream_srv_test_log_info = {
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.filter_fn = NULL,
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.cat = osmo_stream_srv_test_cat,
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.num_cat = ARRAY_SIZE(osmo_stream_srv_test_cat),
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};
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static struct osmo_stream_srv_link *srv;
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static struct osmo_stream_srv *conn;
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void sighandler(int foo)
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{
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LOGP(DSTREAMTEST, LOGL_NOTICE, "closing STREAMSERVER.\n");
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exit(EXIT_SUCCESS);
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}
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int read_cb(struct osmo_stream_srv *conn)
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{
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struct msgb *msg;
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LOGP(DSTREAMTEST, LOGL_NOTICE, "received message from stream\n");
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msg = msgb_alloc(1024, "STREAMSERVER/test");
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if (msg == NULL) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "cannot allocate message\n");
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return 0;
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}
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if (osmo_stream_srv_recv(conn, msg) < 0) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "cannot receive message\n");
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return 0;
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}
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msgb_free(msg);
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return 0;
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}
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static int close_cb(struct osmo_stream_srv *dummy)
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{
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conn = NULL;
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return 0;
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}
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static int accept_cb(struct osmo_stream_srv_link *srv, int fd)
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{
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if (conn != NULL) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "Sorry, this example only "
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"support one client simultaneously\n");
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return -1;
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}
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conn = osmo_stream_srv_create(tall_test, srv, fd, read_cb,
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close_cb, NULL);
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if (conn == NULL) {
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LOGP(DSTREAMTEST, LOGL_ERROR,
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"error while creating connection\n");
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return -1;
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}
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return 0;
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}
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static int kbd_cb(struct osmo_fd *fd, unsigned int what)
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{
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char buf[1024];
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struct msgb *msg;
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uint8_t *ptr;
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int ret;
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ret = read(STDIN_FILENO, buf, sizeof(buf));
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if (ret < 1)
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return 0;
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LOGP(DSTREAMTEST, LOGL_NOTICE, "read %d byte from keyboard\n", ret);
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if (conn == NULL) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "no client, skipping\n");
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return 0;
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}
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msg = msgb_alloc(1024, "osmo_stream_srv_test");
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if (msg == NULL) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "cannot allocate message\n");
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return 0;
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}
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ptr = msgb_put(msg, ret);
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memcpy(ptr, buf, ret);
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osmo_stream_srv_send(conn, msg);
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LOGP(DSTREAMTEST, LOGL_NOTICE, "message of %d bytes sent\n", msg->len);
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return 0;
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}
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int main(void)
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{
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struct osmo_fd *kbd_ofd;
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tall_test = talloc_named_const(NULL, 1, "osmo_stream_srv_test");
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msgb_talloc_ctx_init(tall_test, 0);
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osmo_init_logging2(tall_test, &osmo_stream_srv_test_log_info);
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log_set_log_level(osmo_stderr_target, 1);
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log_set_category_filter(osmo_stderr_target, DLINP, 0, LOGL_INFO);
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/*
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* initialize stream srv.
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*/
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srv = osmo_stream_srv_link_create(tall_test);
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if (srv == NULL) {
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fprintf(stderr, "cannot create client\n");
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exit(EXIT_FAILURE);
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}
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osmo_stream_srv_link_set_addr(srv, "127.0.0.1");
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osmo_stream_srv_link_set_port(srv, 10000);
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osmo_stream_srv_link_set_accept_cb(srv, accept_cb);
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if (osmo_stream_srv_link_open(srv) < 0) {
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fprintf(stderr, "cannot open client\n");
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exit(EXIT_FAILURE);
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}
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kbd_ofd = talloc_zero(tall_test, struct osmo_fd);
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if (!kbd_ofd) {
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LOGP(DSTREAMTEST, LOGL_ERROR, "OOM\n");
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exit(EXIT_FAILURE);
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}
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kbd_ofd->fd = STDIN_FILENO;
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kbd_ofd->when = BSC_FD_READ;
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kbd_ofd->data = srv;
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kbd_ofd->cb = kbd_cb;
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osmo_fd_register(kbd_ofd);
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LOGP(DSTREAMTEST, LOGL_NOTICE, "Entering main loop\n");
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while(1) {
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osmo_select_main(0);
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}
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}
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