void receiver2(chan ch, int expected, chan back) {
int val = chr(ch, int);
assert(val == expected);
chclose(ch);
chs(back, int, 0);
chclose(back);
}
/* receive a value from a pipe and send it to the channel */
coroutine void recv_chs(mill_pipe p, chan ch, mill_wgroup wg) {
mill_wgadd(wg);
int done;
while (1) {
int k = *((int *)mill_piperecv(p, &done));
if (done)
break;
chs(ch, int, k);
}
chclose(ch);
}
int main() {
/* Test 'msleep'. */
uint64_t ms = now();
msleep(100);
ms = now() - ms;
assert(ms > 90 && ms < 110);
/* Test 'after'. */
ms = now();
chan a = after(100);
chr(a, int);
ms = now() - ms;
assert(ms > 90 && ms < 110);
chclose(a);
return 0;
}
int main(void) {
pthread_t thrd[3];
int done = 0;
mill_pipe p[3];
mill_init(-1, -1);
chan ch = chmake(int, 1);
mill_wgroup wg = mill_wgmake();
int j;
for (j = 0; j < 3; j++) {
p[j] = mill_pipemake(sizeof (int));
go(recv_chs(p[j], chdup(ch), wg));
pthread_create(&thrd[j], NULL, produce, mill_pipedup(p[j]));
}
/* wait for all reader coroutines to finish and then close the channel */
go(wait_done(ch, wg));
while (! done) {
choose {
in(ch, int, val):
printf(" %d", val);
done = ! val;
otherwise:
yield();
end
}
}
printf("\n");
for (j = 0; j < 3; j++) {
pthread_join(thrd[j], NULL);
mill_pipefree(p[j]);
}
mill_wgfree(wg);
chclose(ch);
mill_fini();
return 0;
}
int main() {
int val;
/* Receiver waits for sender. */
chan ch1 = chmake(int, 0);
go(sender(chdup(ch1), 1, 333));
val = chr(ch1, int);
assert(val == 333);
chclose(ch1);
/* Sender waits for receiver. */
chan ch2 = chmake(int, 0);
go(sender(chdup(ch2), 0, 444));
val = chr(ch2, int);
assert(val == 444);
chclose(ch2);
/* Test two simultaneous senders. */
chan ch3 = chmake(int, 0);
go(sender(chdup(ch3), 0, 888));
go(sender(chdup(ch3), 0, 999));
val = chr(ch3, int);
assert(val == 888);
yield();
val = chr(ch3, int);
assert(val == 999);
chclose(ch3);
/* Test two simultaneous receivers. */
chan ch4 = chmake(int, 0);
go(receiver(chdup(ch4), 333));
go(receiver(chdup(ch4), 444));
chs(ch4, int, 333);
chs(ch4, int, 444);
chclose(ch4);
/* Test typed channels. */
chan ch5 = chmake(char, 0);
go(charsender(chdup(ch5), 111));
char charval = chr(ch5, char);
assert(charval == 111);
chclose(ch5);
chan ch6 = chmake(struct foo, 0);
struct foo foo1 = {555, 222};
go(structsender(chdup(ch6), foo1));
struct foo foo2 = chr(ch6, struct foo);
assert(foo2.first == 555 && foo2.second == 222);
chclose(ch6);
/* Test message buffering. */
chan ch7 = chmake(int, 2);
chs(ch7, int, 222);
chs(ch7, int, 333);
val = chr(ch7, int);
assert(val == 222);
val = chr(ch7, int);
assert(val == 333);
chs(ch7, int, 444);
val = chr(ch7, int);
assert(val == 444);
chs(ch7, int, 555);
chs(ch7, int, 666);
val = chr(ch7, int);
assert(val == 555);
val = chr(ch7, int);
assert(val == 666);
chclose(ch7);
/* Test simple chdone() scenarios. */
chan ch8 = chmake(int, 0);
chdone(ch8, int, 777);
val = chr(ch8, int);
assert(val == 777);
val = chr(ch8, int);
assert(val == 777);
val = chr(ch8, int);
assert(val == 777);
chclose(ch8);
chan ch9 = chmake(int, 10);
chdone(ch9, int, 888);
val = chr(ch9, int);
assert(val == 888);
val = chr(ch9, int);
assert(val == 888);
chclose(ch9);
chan ch10 = chmake(int, 10);
chs(ch10, int, 999);
chdone(ch10, int, 111);
val = chr(ch10, int);
assert(val == 999);
val = chr(ch10, int);
assert(val == 111);
val = chr(ch10, int);
assert(val == 111);
chclose(ch10);
chan ch11 = chmake(int, 1);
chs(ch11, int, 222);
chdone(ch11, int, 333);
val = chr(ch11, int);
assert(val == 222);
val = chr(ch11, int);
assert(val == 333);
chclose(ch11);
/* Test whether chdone() unblocks all receivers. */
chan ch12 = chmake(int, 0);
chan ch13 = chmake(int, 0);
go(receiver2(chdup(ch12), 444, chdup(ch13)));
go(receiver2(chdup(ch12), 444, chdup(ch13)));
chdone(ch12, int, 444);
val = chr(ch13, int);
assert(val == 0);
val = chr(ch13, int);
assert(val == 0);
chclose(ch13);
chclose(ch12);
return 0;
}
void structsender(chan ch, struct foo val) {
chs(ch, struct foo, val);
chclose(ch);
}
void charsender(chan ch, char val) {
chs(ch, char, val);
chclose(ch);
}
void receiver(chan ch, int expected) {
int val = chr(ch, int);
assert(val == expected);
chclose(ch);
}
void sender(chan ch, int doyield, int val) {
if(doyield)
yield();
chs(ch, int, val);
chclose(ch);
}
void sender2(chan ch, int val) {
yield();
chs(ch, int, val);
chclose(ch);
}
void sender1(chan ch, int val) {
chs(ch, int, val);
chclose(ch);
}
int main() {
int val;
/* Receiver waits for sender. */
chan ch1 = chmake(int, 0);
go(sender(chdup(ch1), 1, 333));
val = chr(ch1, int);
assert(val == 333);
chclose(ch1);
/* Sender waits for receiver. */
chan ch2 = chmake(int, 0);
go(sender(chdup(ch2), 0, 444));
val = chr(ch2, int);
assert(val == 444);
chclose(ch2);
/* Test two simultaneous senders. */
chan ch3 = chmake(int, 0);
go(sender(chdup(ch3), 0, 888));
go(sender(chdup(ch3), 0, 999));
val = chr(ch3, int);
assert(val == 888);
yield();
val = chr(ch3, int);
assert(val == 999);
chclose(ch3);
/* Test two simultaneous receivers. */
chan ch4 = chmake(int, 0);
go(receiver(chdup(ch4), 333));
go(receiver(chdup(ch4), 444));
chs(ch4, int, 333);
chs(ch4, int, 444);
chclose(ch4);
/* Test typed channels. */
chan ch5 = chmake(char, 0);
go(charsender(chdup(ch5), 111));
char charval = chr(ch5, char);
assert(charval == 111);
chclose(ch5);
chan ch6 = chmake(struct foo, 0);
struct foo foo1 = {555, 222};
go(structsender(chdup(ch6), foo1));
struct foo foo2 = chr(ch6, struct foo);
assert(foo2.first == 555 && foo2.second == 222);
chclose(ch6);
/* Test message buffering. */
chan ch7 = chmake(int, 2);
chs(ch7, int, 222);
chs(ch7, int, 333);
val = chr(ch7, int);
assert(val == 222);
val = chr(ch7, int);
assert(val == 333);
chs(ch7, int, 444);
val = chr(ch7, int);
assert(val == 444);
chs(ch7, int, 555);
chs(ch7, int, 666);
val = chr(ch7, int);
assert(val == 555);
val = chr(ch7, int);
assert(val == 666);
chclose(ch7);
/* Test simple chdone() scenarios. */
chan ch8 = chmake(int, 0);
chdone(ch8, int, 777);
val = chr(ch8, int);
assert(val == 777);
val = chr(ch8, int);
assert(val == 777);
val = chr(ch8, int);
assert(val == 777);
chclose(ch8);
chan ch9 = chmake(int, 10);
chdone(ch9, int, 888);
val = chr(ch9, int);
assert(val == 888);
val = chr(ch9, int);
assert(val == 888);
chclose(ch9);
chan ch10 = chmake(int, 10);
chs(ch10, int, 999);
chdone(ch10, int, 111);
val = chr(ch10, int);
assert(val == 999);
val = chr(ch10, int);
assert(val == 111);
val = chr(ch10, int);
assert(val == 111);
chclose(ch10);
chan ch11 = chmake(int, 1);
chs(ch11, int, 222);
chdone(ch11, int, 333);
val = chr(ch11, int);
assert(val == 222);
val = chr(ch11, int);
assert(val == 333);
chclose(ch11);
/* Test whether chdone() unblocks all receivers. */
chan ch12 = chmake(int, 0);
chan ch13 = chmake(int, 0);
go(receiver2(chdup(ch12), 444, chdup(ch13)));
go(receiver2(chdup(ch12), 444, chdup(ch13)));
chdone(ch12, int, 444);
val = chr(ch13, int);
assert(val == 0);
val = chr(ch13, int);
assert(val == 0);
chclose(ch13);
chclose(ch12);
/* Test a combination of blocked sender and an item in the channel. */
chan ch14 = chmake(int, 1);
chs(ch14, int, 1);
go(sender(chdup(ch14), 0, 2));
val = chr(ch14, int);
assert(val == 1);
val = chr(ch14, int);
assert(val == 2);
chclose(ch14);
pid_t pid;
/* Test panic when chs will deadlock. */
pid = fork();
assert(pid >= 0);
if (pid == 0) {
alarm(1);
chan ch = chmake(int, 0);
signal(SIGABRT, expected_abort);
chs(ch, int, 42);
fail();
}
