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/* IPA stream client example. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <sys/time.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <osmocom/core/select.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/msgb.h>
#include <osmocom/core/logging.h>
#include <osmocom/core/application.h>
#include <osmocom/netif/stream.h>
#include <osmocom/netif/ipa.h>
static LLIST_HEAD(msg_sent_list);
struct msg_sent {
struct llist_head head;
struct msgb *msg;
int num;
struct timeval tv;
};
#define DIPATEST 0
struct log_info_cat osmo_stream_client_test_cat[] = {
[DIPATEST] = {
.name = "DIPATEST",
.description = "STREAMCLIENT-mode test",
.color = "\033[1;35m",
.enabled = 1, .loglevel = LOGL_NOTICE,
},
};
const struct log_info osmo_stream_client_test_log_info = {
.filter_fn = NULL,
.cat = osmo_stream_client_test_cat,
.num_cat = ARRAY_SIZE(osmo_stream_client_test_cat),
};
static struct osmo_stream_cli *conn;
void sighandler(int foo)
{
LOGP(DIPATEST, LOGL_NOTICE, "closing stream.\n");
exit(EXIT_SUCCESS);
}
static int disconnect_cb(struct osmo_stream_cli *conn)
{
LOGP(DIPATEST, LOGL_NOTICE, "disconnected\n");
return 0;
}
static int connect_cb(struct osmo_stream_cli *conn)
{
int *__num_msgs = osmo_stream_cli_get_data(conn);
int num_msgs = *__num_msgs, i;
LOGP(DIPATEST, LOGL_NOTICE, "connected\n");
for (i=0; i<num_msgs; i++) {
struct msgb *msg;
struct msg_sent *msg_sent;
char *ptr;
int x;
msg = osmo_ipa_msg_alloc(0);
if (msg == NULL) {
LOGP(DLINP, LOGL_ERROR, "cannot alloc msg\n");
return -1;
}
ptr = (char *)msgb_put(msg, sizeof(int));
x = htonl(i);
memcpy(ptr, &x, sizeof(int));
msg_sent = talloc_zero(NULL, struct msg_sent);
if (msg_sent == NULL) {
LOGP(DLINP, LOGL_ERROR, "can't alloc struct\n");
return -1;
}
msg_sent->msg = msg;
gettimeofday(&msg_sent->tv, NULL);
msg_sent->num = i;
llist_add(&msg_sent->head, &msg_sent_list);
osmo_ipa_msg_push_header(msg, IPAC_PROTO_OSMO);
osmo_stream_cli_send(conn, msg);
LOGP(DIPATEST, LOGL_DEBUG, "enqueueing msg %d of "
"%d bytes to be sent\n", i, msg->len);
}
return 0;
}
static int read_cb(struct osmo_stream_cli *conn)
{
struct msgb *msg;
LOGP(DIPATEST, LOGL_DEBUG, "received message from stream\n");
msg = osmo_ipa_msg_alloc(0);
if (msg == NULL) {
LOGP(DIPATEST, LOGL_ERROR, "cannot allocate message\n");
return 0;
}
if (osmo_stream_cli_recv(conn, msg) <= 0) {
LOGP(DIPATEST, LOGL_ERROR, "cannot receive message\n");
return 0;
}
if (osmo_ipa_process_msg(msg) < 0) {
LOGP(DIPATEST, LOGL_ERROR, "bad IPA message\n");
return 0;
}
int num;
struct msg_sent *cur, *tmp, *found = NULL;
num = ntohl(*((int *)(msg->data + sizeof(struct ipa_head))));
LOGP(DLINP, LOGL_DEBUG, "received msg number %d\n", num);
llist_for_each_entry_safe(cur, tmp, &msg_sent_list, head) {
if (cur->num == num) {
llist_del(&cur->head);
found = cur;
break;
}
}
if (found) {
struct timeval tv, diff;
gettimeofday(&tv, NULL);
timersub(&tv, &found->tv, &diff);
LOGP(DLINP, LOGL_NOTICE, "message %d replied "
"in %lu.%.6lu\n", num, diff.tv_sec, diff.tv_usec);
talloc_free(found);
} else {
LOGP(DLINP, LOGL_ERROR,
"message %d not found!\n", num);
}
return 0;
}
static void *tall_test;
int main(int argc, char *argv[])
{
int num_msgs;
signal(SIGINT, sighandler);
if (argc != 2) {
printf("Usage: %s [num_msgs]\n", argv[0]);
exit(EXIT_FAILURE);
}
num_msgs = atoi(argv[1]);
tall_test = talloc_named_const(NULL, 1, "osmo_stream_client_test");
msgb_talloc_ctx_init(tall_test, 0);
osmo_init_logging2(tall_test, &osmo_stream_client_test_log_info);
log_set_log_level(osmo_stderr_target, LOGL_NOTICE);
/*
* initialize stream client.
*/
conn = osmo_stream_cli_create(tall_test);
if (conn == NULL) {
fprintf(stderr, "cannot create client\n");
exit(EXIT_FAILURE);
}
osmo_stream_cli_set_addr(conn, "127.0.0.1");
osmo_stream_cli_set_port(conn, 10000);
osmo_stream_cli_set_connect_cb(conn, connect_cb);
osmo_stream_cli_set_disconnect_cb(conn, disconnect_cb);
osmo_stream_cli_set_read_cb(conn, read_cb);
osmo_stream_cli_set_data(conn, &num_msgs);
if (osmo_stream_cli_open(conn) < 0) {
fprintf(stderr, "cannot open client\n");
exit(EXIT_FAILURE);
}
int on = 1, ret;
struct osmo_fd *ofd = osmo_stream_cli_get_ofd(conn);
ret = setsockopt(ofd->fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof(on));
if (ret < 0) {
LOGP(DIPATEST, LOGL_ERROR, "cannot disable Nagle\n");
exit(EXIT_FAILURE);
}
LOGP(DIPATEST, LOGL_NOTICE, "Entering main loop\n");
while(1) {
osmo_select_main(0);
}
}
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