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#include <signal.h>
#include <stdio.h>
#include <malloc.h>
#include <netdb.h>
#include <string.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include "iobroker.c"
#include "t-utils.h"
static iobroker_set *iobs;
static char *msg[] = {
"Welcome to the echo service!\n",
"test msg nr 2",
"random piece of string\nwith\nlots\nof\nnewlines\n\n\n\n\0",
"another totally random message\n",
"and this one's from emma. She's alright, really",
NULL,
};
static int echo_service(int fd, int events, void *arg)
{
char buf[1024];
int len;
len = read(fd, buf, sizeof(buf));
if (len < 0) {
perror("read");
iobroker_close(iobs, fd);
ok_int(iobroker_is_registered(iobs, fd), 0, "Closing must deregister");
return 0;
}
/* zero read means we're disconnected */
if (!len) {
iobroker_close(iobs, fd);
ok_int(iobroker_is_registered(iobs, fd), 0, "Closing must deregister");
return 0;
}
write(fd, buf, len);
return 0;
}
static int connected_handler(int fd, int events, void *arg)
{
int *counter = (int *)arg;
int i;
i = *counter;
if (events == IOBROKER_POLLIN) {
char buf[1024];
int len = read(fd, buf, sizeof(buf));
buf[len] = 0;
test(len == (int)strlen(msg[i]), "len match for message %d", i);
test(!memcmp(buf, msg[i], len), "data match for message %d", i);
}
i++;
if (i < 0 || i >= (int)ARRAY_SIZE(msg)) {
fprintf(stderr, "i = %d in connected_handler(). What's up with that?\n", i);
return 0;
}
if (!msg[i]) {
iobroker_close(iobs, fd);
return 0;
}
write(fd, msg[i], strlen(msg[i]));
*counter = i;
return 0;
}
static int listen_handler(int fd, int events, void *arg)
{
int sock;
struct sockaddr_in sain;
socklen_t addrlen;
if (!arg || arg != iobs) {
printf("Argument passing seems to fail spectacularly\n");
}
addrlen = sizeof(sain);
//printf("listen_handler(%d, %d, %p) called\n", fd, events, arg);
sock = accept(fd, (struct sockaddr *)&sain, &addrlen);
if (sock < 0) {
perror("accept");
return -1;
}
write(sock, msg[0], strlen(msg[0]));
iobroker_register(iobs, sock, iobs, echo_service);
ok_int(iobroker_is_registered(iobs, sock), 1, "is_registered must be true");
return 0;
}
void sighandler(int sig)
{
/* test failed */
t_fail("Caught signal %d", sig);
exit(t_end());
}
#define NUM_PROCS 500
static int proc_counter[NUM_PROCS];
static int conn_spam(struct sockaddr_in *sain)
{
int i;
#ifdef HAVE_SIGACTION
struct sigaction sig_action;
sig_action.sa_sigaction = NULL;
sig_action.sa_handler = SIG_IGN;
sigemptyset(&sig_action.sa_mask);
sig_action.sa_flags = 0;
sigaction(SIGPIPE, &sig_action, NULL);
sig_action.sa_handler = sighandler;
sigfillset(&sig_action.sa_mask);
sig_action.sa_flags = SA_NODEFER|SA_RESTART;
sigaction(SIGQUIT, &sig_action, NULL);
sigaction(SIGINT, &sig_action, NULL);
#else /* HAVE_SIGACTION */
signal(SIGALRM, sighandler);
signal(SIGINT, sighandler);
signal(SIGPIPE, SIG_IGN);
#endif /* HAVE_SIGACTION */
alarm(20);
for (i = 0; i < NUM_PROCS; i++) {
int fd, sockopt = 1;
fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
(void)setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &sockopt, sizeof(sockopt));
proc_counter[i] = 0;
iobroker_register(iobs, fd, (void *)&proc_counter[i], connected_handler);
if (connect(fd, (struct sockaddr *)sain, sizeof(*sain))) {
perror("connect");
}
iobroker_poll(iobs, -1);
}
return 0;
}
int main(int argc, char **argv)
{
int listen_fd, flags, sockopt = 1;
struct sockaddr_in sain;
int error;
const char *err_msg;
t_set_colors(0);
t_start("iobroker ipc test");
error = iobroker_get_max_fds(NULL);
ok_int(error, IOBROKER_ENOSET, "test errors when passing null");
err_msg = iobroker_strerror(error);
test(err_msg && !strcmp(err_msg, iobroker_errors[(~error) + 1].string), "iobroker_strerror() returns the right string");
iobs = iobroker_create();
error = iobroker_get_max_fds(iobs);
test(iobs && error >= 0, "max fd's for real iobroker set must be > 0");
listen_fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
flags = fcntl(listen_fd, F_GETFD);
flags |= FD_CLOEXEC;
fcntl(listen_fd, F_SETFD, flags);
(void)setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &sockopt, sizeof(sockopt));
memset(&sain, 0, sizeof(sain));
sain.sin_port = ntohs(9123);
sain.sin_family = AF_INET;
bind(listen_fd, (struct sockaddr *)&sain, sizeof(sain));
listen(listen_fd, 128);
iobroker_register(iobs, listen_fd, iobs, listen_handler);
if (argc == 1)
conn_spam(&sain);
for (;;) {
iobroker_poll(iobs, -1);
if (iobroker_get_num_fds(iobs) <= 1) {
break;
}
}
iobroker_close(iobs, listen_fd);
iobroker_destroy(iobs, 0);
t_end();
return 0;
}
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