aboutsummaryrefslogtreecommitdiff
path: root/v_windows/v/old/vlib/context/deadline_test.v
diff options
context:
space:
mode:
Diffstat (limited to 'v_windows/v/old/vlib/context/deadline_test.v')
-rw-r--r--v_windows/v/old/vlib/context/deadline_test.v48
1 files changed, 48 insertions, 0 deletions
diff --git a/v_windows/v/old/vlib/context/deadline_test.v b/v_windows/v/old/vlib/context/deadline_test.v
new file mode 100644
index 0000000..e4d7280
--- /dev/null
+++ b/v_windows/v/old/vlib/context/deadline_test.v
@@ -0,0 +1,48 @@
+import context
+import time
+
+const (
+ // a reasonable duration to block in an example
+ short_duration = 1 * time.millisecond
+)
+
+// This example passes a context with an arbitrary deadline to tell a blocking
+// function that it should abandon its work as soon as it gets to it.
+fn test_with_deadline() {
+ dur := time.now().add(short_duration)
+ ctx := context.with_deadline(context.background(), dur)
+
+ defer {
+ // Even though ctx will be expired, it is good practice to call its
+ // cancellation function in any case. Failure to do so may keep the
+ // context and its parent alive longer than necessary.
+ context.cancel(ctx)
+ }
+
+ ctx_ch := ctx.done()
+ select {
+ _ := <-ctx_ch {}
+ 1 * time.second {
+ panic('This should not happen')
+ }
+ }
+}
+
+// This example passes a context with a timeout to tell a blocking function that
+// it should abandon its work after the timeout elapses.
+fn test_with_timeout() {
+ // Pass a context with a timeout to tell a blocking function that it
+ // should abandon its work after the timeout elapses.
+ ctx := context.with_timeout(context.background(), short_duration)
+ defer {
+ context.cancel(ctx)
+ }
+
+ ctx_ch := ctx.done()
+ select {
+ _ := <-ctx_ch {}
+ 1 * time.second {
+ panic('This should not happen')
+ }
+ }
+}