coroutine void client(int port) {
ipaddr addr = ipremote("127.0.0.1", port, 0, -1);
tcpsock cs = tcpconnect(addr, -1);
assert(cs);
char ipstr[16] = {0};
ipaddrstr(addr, ipstr);
assert(errno == 0);
assert(strcmp(ipstr, "127.0.0.1") == 0);
int fd = tcpdetach(cs);
assert(fd != -1);
cs = tcpattach(fd, 0);
assert(cs);
msleep(now() + 100);
char buf[16];
size_t sz = tcprecv(cs, buf, 3, -1);
assert(sz == 3 && buf[0] == 'A' && buf[1] == 'B' && buf[2] == 'C');
sz = tcpsend(cs, "123\n45\n6789", 11, -1);
assert(sz == 11 && errno == 0);
tcpflush(cs, -1);
assert(errno == 0);
tcpclose(cs);
}
int main() {
char buf[16];
tcpsock ls = tcplisten(iplocal(NULL, 5555, 0), 10);
assert(ls);
int fd = tcpdetach(ls);
assert(fd != -1);
ls = tcpattach(fd, 1);
assert(ls);
assert(tcpport(ls) == 5555);
go(client(5555));
tcpsock as = tcpaccept(ls, -1);
/* Test deadline. */
int64_t deadline = now() + 30;
size_t sz = tcprecv(as, buf, sizeof(buf), deadline);
assert(sz == 0 && errno == ETIMEDOUT);
int64_t diff = now() - deadline;
assert(diff > -20 && diff < 20);
sz = tcpsend(as, "ABC", 3, -1);
assert(sz == 3 && errno == 0);
tcpflush(as, -1);
assert(errno == 0);
sz = tcprecvuntil(as, buf, sizeof(buf), "\n", 1, -1);
assert(sz == 4);
assert(buf[0] == '1' && buf[1] == '2' && buf[2] == '3' && buf[3] == '\n');
sz = tcprecvuntil(as, buf, sizeof(buf), "\n", 1, -1);
assert(sz == 3);
assert(buf[0] == '4' && buf[1] == '5' && buf[2] == '\n');
sz = tcprecvuntil(as, buf, 3, "\n", 1, -1);
assert(sz == 3);
assert(buf[0] == '6' && buf[1] == '7' && buf[2] == '8');
tcpclose(as);
tcpclose(ls);
return 0;
}
