machinarium: add getaddrinfo cancelation test

.gitignore

@@ -15,6 +15,7 @@ tests/test_client_server
 tests/test_client_server_ra
 tests/test_cancel_sleep
 tests/test_cancel_sleep_2
+tests/test_cancel_getaddrinfo
 tests/test_cancel_connect
 tests/test_cancel_connect_2
 tests/test_cancel_read

tests/makefile

@@ -14,6 +14,7 @@ TESTS      = test_new \
              test_client_server_ra \
              test_cancel_sleep \
              test_cancel_sleep_2 \
+             test_cancel_getaddrinfo \
              test_cancel_connect \
              test_cancel_connect_2 \
              test_cancel_read \
@@ -40,6 +41,8 @@ test_cancel_sleep:
 	$(CC) $(CFLAGS) test_cancel_sleep.c $(LFLAGS) -o test_cancel_sleep
 test_cancel_sleep_2:
 	$(CC) $(CFLAGS) test_cancel_sleep_2.c $(LFLAGS) -o test_cancel_sleep_2
+test_cancel_getaddrinfo:
+	$(CC) $(CFLAGS) test_cancel_getaddrinfo.c $(LFLAGS) -o test_cancel_getaddrinfo
 test_cancel_connect:
 	$(CC) $(CFLAGS) test_cancel_connect.c $(LFLAGS) -o test_cancel_connect
 test_cancel_connect_2:

tests/test_cancel_getaddrinfo.c

@@ -0,0 +1,52 @@
+
+/*
+ * machinarium.
+ *
+ * Cooperative multitasking engine.
+*/
+
+#include <machinarium.h>
+#include <assert.h>
+
+static void
+test_gai(void *arg)
+{
+	printf("child started\n");
+	mm_t env = arg;
+	mm_io_t io = mm_io_new(env);
+	struct addrinfo *res = NULL;
+	int rc = mm_getaddrinfo(io, "abracadabra", "http", NULL, &res, 0);
+	assert(rc < 0);
+	mm_close(io);
+	assert(res == NULL);
+	if (mm_is_cancel(env))
+		printf("child marked as cancel\n");
+	printf("child done\n");
+}
+
+static void
+test_waiter(void *arg)
+{
+	mm_t env = arg;
+
+	printf("waiter started\n");
+
+	int id = mm_create(env, test_gai, env);
+	mm_sleep(env, 0);
+	mm_cancel(env, id);
+	mm_wait(env, id);
+
+	printf("waiter ended \n");
+	mm_stop(env);
+}
+
+int
+main(int argc, char *argv[])
+{
+	mm_t env = mm_new();
+	mm_create(env, test_waiter, env);
+	mm_start(env);
+	printf("shutting down\n");
+	mm_free(env);
+	return 0;
+}

tests/test_getaddrinfo.c

@@ -13,7 +13,6 @@ fiber(void *arg)
 {
 	mm_t env = arg;
 	mm_io_t io = mm_io_new(env);
-
 	struct addrinfo *res = NULL;
 	int rc = mm_getaddrinfo(io, "localhost", "http", NULL, &res, 0);
 	if (rc < 0) {