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#include <ccan/io/io.h>
/* Include the C files directly. */
#include <ccan/io/poll.c>
#include <ccan/io/io.c>
#include <ccan/tap/tap.h>
#include <sys/wait.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#ifdef DEBUG_CONN
#define PORT "64006"
#else
#define PORT "65006"
#endif
static struct io_conn *idler;
struct data {
int state;
char buf[4];
};
static struct io_plan *read_done(struct io_conn *conn, struct data *d)
{
ok1(d->state == 2 || d->state == 3);
d->state++;
return io_close(conn);
}
static void finish_waker(struct io_conn *conn, struct data *d)
{
io_wake(d);
ok1(d->state == 1);
d->state++;
}
static void finish_idle(struct io_conn *conn, struct data *d)
{
ok1(d->state == 3);
d->state++;
io_break(d);
}
static struct io_plan *never(struct io_conn *conn, void *arg)
{
abort();
}
static struct io_plan *read_buf(struct io_conn *conn, struct data *d)
{
return io_read(conn, d->buf, sizeof(d->buf), read_done, d);
}
static struct io_plan *init_waker(struct io_conn *conn, void *unused)
{
/* This is /dev/null, so will never succeed. */
return io_read(conn, unused, 1, never, NULL);
}
static struct io_plan *init_idle(struct io_conn *conn, struct data *d)
{
int fd2;
ok1(d->state == 0);
d->state++;
idler = conn;
io_set_finish(conn, finish_idle, d);
/* This will wake us up, as read will fail. */
fd2 = open("/dev/null", O_RDONLY);
ok1(fd2 >= 0);
io_set_finish(io_new_conn(NULL, fd2, init_waker, d), finish_waker, d);
return io_wait(conn, d, read_buf, d);
}
static int make_listen_fd(const char *port, struct addrinfo **info)
{
int fd, on = 1;
struct addrinfo *addrinfo, hints;
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE;
hints.ai_protocol = 0;
if (getaddrinfo(NULL, port, &hints, &addrinfo) != 0)
return -1;
fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
addrinfo->ai_protocol);
if (fd < 0)
return -1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
if (bind(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0) {
close(fd);
return -1;
}
if (listen(fd, 1) != 0) {
close(fd);
return -1;
}
*info = addrinfo;
return fd;
}
int main(void)
{
struct data *d = malloc(sizeof(*d));
struct addrinfo *addrinfo;
struct io_listener *l;
int fd, status;
/* This is how many tests you plan to run */
plan_tests(13);
d->state = 0;
fd = make_listen_fd(PORT, &addrinfo);
ok1(fd >= 0);
l = io_new_listener(NULL, fd, init_idle, d);
ok1(l);
fflush(stdout);
if (!fork()) {
int i;
io_close_listener(l);
fd = socket(addrinfo->ai_family, addrinfo->ai_socktype,
addrinfo->ai_protocol);
if (fd < 0)
exit(1);
if (connect(fd, addrinfo->ai_addr, addrinfo->ai_addrlen) != 0)
exit(2);
signal(SIGPIPE, SIG_IGN);
for (i = 0; i < strlen("hellothere"); i++) {
if (write(fd, "hellothere" + i, 1) != 1)
break;
}
close(fd);
freeaddrinfo(addrinfo);
free(d);
exit(0);
}
freeaddrinfo(addrinfo);
ok1(io_loop(NULL, NULL) == d);
ok1(d->state == 4);
ok1(memcmp(d->buf, "hellothere", sizeof(d->buf)) == 0);
free(d);
io_close_listener(l);
ok1(wait(&status));
ok1(WIFEXITED(status));
ok1(WEXITSTATUS(status) == 0);
/* This exits depending on whether all tests passed */
return exit_status();
}
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