Test: active idle watcher should not block other events

msvs/libuv-test.vcxproj

@@ -153,6 +153,7 @@
     <ClCompile Include="..\test\test-getaddrinfo.c" />
     <ClCompile Include="..\test\test-getsockname.c" />
     <ClCompile Include="..\test\test-hrtime.c" />
+    <ClCompile Include="..\test\test-idle.c" />
     <ClCompile Include="..\test\test-loop-handles.c" />
     <ClCompile Include="..\test\test-pass-always.c" />
     <ClCompile Include="..\test\test-ping-pong.c" />

test/test-idle.c

@@ -0,0 +1,86 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "uv.h"
+#include "task.h"
+
+
+static uv_timer_t timer_handle;
+static uv_idle_t idle_handle;
+
+static int idle_cb_called = 0;
+static int timer_cb_called = 0;
+static int close_cb_called = 0;
+
+
+static void close_cb(uv_handle_t* handle) {
+  close_cb_called++;
+}
+
+
+static void timer_cb(uv_timer_t* handle, int status) {
+  int r;
+
+  ASSERT(handle == &timer_handle);
+  ASSERT(status == 0);
+
+  r = uv_close((uv_handle_t*) &idle_handle, close_cb);
+  ASSERT(r == 0);
+  r = uv_close((uv_handle_t*) &idle_handle, close_cb);
+  ASSERT(r == 0);
+
+  timer_cb_called++;
+}
+
+
+static void idle_cb(uv_idle_t* handle, int status) {
+  ASSERT(handle == &idle_handle);
+  ASSERT(status == 0);
+
+  idle_cb_called++;
+  ASSERT(idle_cb_called <= 1);
+}
+
+
+TEST_IMPL(idle_starvation) {
+  int r;
+
+  uv_init();
+
+  r = uv_idle_init(&idle_handle);
+  ASSERT(r == 0);
+  r = uv_idle_start(&idle_handle, idle_cb);
+  ASSERT(r == 0);
+
+  r = uv_timer_init(&timer_handle);
+  ASSERT(r == 0);
+  r = uv_timer_start(&timer_handle, timer_cb, 100, 0);
+  ASSERT(r == 0);
+
+  r = uv_run();
+  ASSERT(r == 0);
+
+  ASSERT(idle_cb_called == 1);
+  ASSERT(timer_cb_called == 1);
+  ASSERT(close_cb_called == 2);
+
+  return 0;
+}

test/test-list.h

@@ -46,6 +46,7 @@ TEST_DECLARE   (shutdown_eof)
 TEST_DECLARE   (callback_stack)
 TEST_DECLARE   (timer)
 TEST_DECLARE   (timer_again)
+TEST_DECLARE   (idle_starvation)
 TEST_DECLARE   (loop_handles)
 TEST_DECLARE   (ref)
 TEST_DECLARE   (idle_ref)
@@ -113,6 +114,8 @@ TASK_LIST_START
 
   TEST_ENTRY  (timer_again)
 
+  TEST_ENTRY  (idle_starvation)
+
   TEST_ENTRY  (ref)
   TEST_ENTRY  (idle_ref)
   TEST_ENTRY  (async_ref)
@@ -141,4 +144,3 @@ TASK_LIST_START
   TEST_ENTRY  (pass_always)
 #endif
 TASK_LIST_END
-