--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/third_party/libuv/test/test-timer.c	Wed Jan 14 19:39:52 2026 -0800
@@ -0,0 +1,453 @@
+/* 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 int once_cb_called = 0;
+static int once_close_cb_called = 0;
+static int twice_cb_called = 0;
+static int twice_close_cb_called = 0;
+static int repeat_cb_called = 0;
+static int repeat_close_cb_called = 0;
+static int order_cb_called = 0;
+static int timer_check_double_call_called = 0;
+static int zero_timeout_cb_calls = 0;
+static uint64_t start_time;
+static uv_timer_t tiny_timer;
+static uv_timer_t huge_timer1;
+static uv_timer_t huge_timer2;
+
+
+static void once_close_cb(uv_handle_t* handle) {
+  printf("ONCE_CLOSE_CB\n");
+
+  ASSERT_NOT_NULL(handle);
+  ASSERT_OK(uv_is_active(handle));
+
+  once_close_cb_called++;
+}
+
+
+static void once_cb(uv_timer_t* handle) {
+  printf("ONCE_CB %d\n", once_cb_called);
+
+  ASSERT_NOT_NULL(handle);
+  ASSERT_OK(uv_is_active((uv_handle_t*) handle));
+
+  once_cb_called++;
+
+  uv_close((uv_handle_t*)handle, once_close_cb);
+
+  /* Just call this randomly for the code coverage. */
+  uv_update_time(uv_default_loop());
+}
+
+static void twice_close_cb(uv_handle_t* handle) {
+  printf("TWICE_CLOSE_CB\n");
+
+  ASSERT_NOT_NULL(handle);
+  ASSERT_OK(uv_is_active(handle));
+
+  twice_close_cb_called++;
+}
+
+static void twice_cb(uv_timer_t* handle) {
+  printf("TWICE_CB %d\n", twice_cb_called);
+
+  ASSERT_NOT_NULL(handle);
+  ASSERT_OK(uv_is_active((uv_handle_t*) handle));
+
+  twice_cb_called++;
+
+  uv_close((uv_handle_t*)handle, twice_close_cb);
+}
+
+
+
+static void repeat_close_cb(uv_handle_t* handle) {
+  printf("REPEAT_CLOSE_CB\n");
+
+  ASSERT_NOT_NULL(handle);
+
+  repeat_close_cb_called++;
+}
+
+
+static void repeat_cb(uv_timer_t* handle) {
+  printf("REPEAT_CB\n");
+
+  ASSERT_NOT_NULL(handle);
+  ASSERT_EQ(1, uv_is_active((uv_handle_t*) handle));
+
+  repeat_cb_called++;
+
+  if (repeat_cb_called == 5) {
+    uv_close((uv_handle_t*)handle, repeat_close_cb);
+  }
+}
+
+
+static void never_cb(uv_timer_t* handle) {
+  FATAL("never_cb should never be called");
+}
+
+
+TEST_IMPL(timer) {
+  uv_timer_t once_timers[10];
+  uv_timer_t *once;
+  uv_timer_t repeat, never;
+  unsigned int i;
+  int r;
+
+  start_time = uv_now(uv_default_loop());
+  ASSERT_LT(0, start_time);
+
+  /* Let 10 timers time out in 500 ms total. */
+  for (i = 0; i < ARRAY_SIZE(once_timers); i++) {
+    once = once_timers + i;
+    r = uv_timer_init(uv_default_loop(), once);
+    ASSERT_OK(r);
+    r = uv_timer_start(once, once_cb, i * 50, 0);
+    ASSERT_OK(r);
+  }
+
+  /* The 11th timer is a repeating timer that runs 4 times */
+  r = uv_timer_init(uv_default_loop(), &repeat);
+  ASSERT_OK(r);
+  r = uv_timer_start(&repeat, repeat_cb, 100, 100);
+  ASSERT_OK(r);
+
+  /* The 12th timer should not do anything. */
+  r = uv_timer_init(uv_default_loop(), &never);
+  ASSERT_OK(r);
+  r = uv_timer_start(&never, never_cb, 100, 100);
+  ASSERT_OK(r);
+  r = uv_timer_stop(&never);
+  ASSERT_OK(r);
+  uv_unref((uv_handle_t*)&never);
+
+  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+
+  ASSERT_EQ(10, once_cb_called);
+  ASSERT_EQ(10, once_close_cb_called);
+  printf("repeat_cb_called %d\n", repeat_cb_called);
+  ASSERT_EQ(5, repeat_cb_called);
+  ASSERT_EQ(1, repeat_close_cb_called);
+
+  ASSERT_LE(500, uv_now(uv_default_loop()) - start_time);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(timer_start_twice) {
+  uv_timer_t once;
+  int r;
+
+  r = uv_timer_init(uv_default_loop(), &once);
+  ASSERT_OK(r);
+  r = uv_timer_start(&once, never_cb, 86400 * 1000, 0);
+  ASSERT_OK(r);
+  r = uv_timer_start(&once, twice_cb, 10, 0);
+  ASSERT_OK(r);
+  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
+  ASSERT_OK(r);
+
+  ASSERT_EQ(1, twice_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(timer_init) {
+  uv_timer_t handle;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &handle));
+  ASSERT_OK(uv_timer_get_repeat(&handle));
+  ASSERT_UINT64_LE(0, uv_timer_get_due_in(&handle));
+  ASSERT_OK(uv_is_active((uv_handle_t*) &handle));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static void order_cb_a(uv_timer_t *handle) {
+  ASSERT_EQ(order_cb_called++, *(int*)handle->data);
+}
+
+
+static void order_cb_b(uv_timer_t *handle) {
+  ASSERT_EQ(order_cb_called++, *(int*)handle->data);
+}
+
+
+TEST_IMPL(timer_order) {
+  int first;
+  int second;
+  uv_timer_t handle_a;
+  uv_timer_t handle_b;
+
+  first = 0;
+  second = 1;
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &handle_a));
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &handle_b));
+
+  /* Test for starting handle_a then handle_b */
+  handle_a.data = &first;
+  ASSERT_OK(uv_timer_start(&handle_a, order_cb_a, 0, 0));
+  handle_b.data = &second;
+  ASSERT_OK(uv_timer_start(&handle_b, order_cb_b, 0, 0));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  ASSERT_EQ(2, order_cb_called);
+
+  ASSERT_OK(uv_timer_stop(&handle_a));
+  ASSERT_OK(uv_timer_stop(&handle_b));
+
+  /* Test for starting handle_b then handle_a */
+  order_cb_called = 0;
+  handle_b.data = &first;
+  ASSERT_OK(uv_timer_start(&handle_b, order_cb_b, 0, 0));
+
+  handle_a.data = &second;
+  ASSERT_OK(uv_timer_start(&handle_a, order_cb_a, 0, 0));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  ASSERT_EQ(2, order_cb_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static void zero_timeout_cb(uv_timer_t* handle) {
+  ASSERT_OK(uv_timer_start(handle, zero_timeout_cb, 0, 0));
+  uv_stop(handle->loop);
+  zero_timeout_cb_calls++;
+}
+
+
+TEST_IMPL(timer_zero_timeout) {
+  uv_timer_t timer;
+  uv_loop_t* loop;
+
+  loop = uv_default_loop();
+  ASSERT_OK(uv_timer_init(loop, &timer));
+  ASSERT_OK(uv_timer_start(&timer, zero_timeout_cb, 0, 0));
+  ASSERT_EQ(1, uv_run(loop, UV_RUN_DEFAULT));  /* because of uv_stop() */
+  ASSERT_EQ(1, zero_timeout_cb_calls);
+  uv_close((uv_handle_t*) &timer, NULL);
+  ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
+  ASSERT_EQ(1, zero_timeout_cb_calls);
+
+  MAKE_VALGRIND_HAPPY(loop);
+  return 0;
+}
+
+
+static void tiny_timer_cb(uv_timer_t* handle) {
+  ASSERT_PTR_EQ(handle, &tiny_timer);
+  uv_close((uv_handle_t*) &tiny_timer, NULL);
+  uv_close((uv_handle_t*) &huge_timer1, NULL);
+  uv_close((uv_handle_t*) &huge_timer2, NULL);
+}
+
+
+TEST_IMPL(timer_huge_timeout) {
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &tiny_timer));
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &huge_timer1));
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &huge_timer2));
+  ASSERT_OK(uv_timer_start(&tiny_timer, tiny_timer_cb, 1, 0));
+  ASSERT_OK(uv_timer_start(&huge_timer1,
+                           tiny_timer_cb,
+                           0xffffffffffffLL,
+                           0));
+  ASSERT_OK(uv_timer_start(&huge_timer2, tiny_timer_cb, (uint64_t) -1, 0));
+  ASSERT_UINT64_EQ(1, uv_timer_get_due_in(&tiny_timer));
+  ASSERT_UINT64_EQ(281474976710655, uv_timer_get_due_in(&huge_timer1));
+  ASSERT_UINT64_LE(0, uv_timer_get_due_in(&huge_timer2));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static void huge_repeat_cb(uv_timer_t* handle) {
+  static int ncalls;
+
+  if (ncalls == 0)
+    ASSERT_PTR_EQ(handle, &huge_timer1);
+  else
+    ASSERT_PTR_EQ(handle, &tiny_timer);
+
+  if (++ncalls == 10) {
+    uv_close((uv_handle_t*) &tiny_timer, NULL);
+    uv_close((uv_handle_t*) &huge_timer1, NULL);
+  }
+}
+
+
+TEST_IMPL(timer_huge_repeat) {
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &tiny_timer));
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &huge_timer1));
+  ASSERT_OK(uv_timer_start(&tiny_timer, huge_repeat_cb, 2, 2));
+  ASSERT_OK(uv_timer_start(&huge_timer1, huge_repeat_cb, 1, (uint64_t) -1));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static unsigned int timer_run_once_timer_cb_called;
+
+
+static void timer_run_once_timer_cb(uv_timer_t* handle) {
+  timer_run_once_timer_cb_called++;
+}
+
+
+TEST_IMPL(timer_run_once) {
+  uv_timer_t timer_handle;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &timer_handle));
+  ASSERT_OK(uv_timer_start(&timer_handle, timer_run_once_timer_cb, 0, 0));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_ONCE));
+  ASSERT_EQ(1, timer_run_once_timer_cb_called);
+
+  ASSERT_OK(uv_timer_start(&timer_handle, timer_run_once_timer_cb, 1, 0));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_ONCE));
+  ASSERT_EQ(2, timer_run_once_timer_cb_called);
+
+  uv_close((uv_handle_t*) &timer_handle, NULL);
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_ONCE));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(timer_is_closing) {
+  uv_timer_t handle;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &handle));
+  uv_close((uv_handle_t *)&handle, NULL);
+
+  ASSERT_EQ(UV_EINVAL, uv_timer_start(&handle, never_cb, 100, 100));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+TEST_IMPL(timer_null_callback) {
+  uv_timer_t handle;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &handle));
+  ASSERT_EQ(UV_EINVAL, uv_timer_start(&handle, NULL, 100, 100));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+
+static uint64_t timer_early_check_expected_time;
+
+
+static void timer_early_check_cb(uv_timer_t* handle) {
+  uint64_t hrtime = uv_hrtime() / 1000000;
+  ASSERT_GE(hrtime, timer_early_check_expected_time);
+}
+
+
+TEST_IMPL(timer_early_check) {
+  uv_timer_t timer_handle;
+  const uint64_t timeout_ms = 10;
+
+  timer_early_check_expected_time = uv_now(uv_default_loop()) + timeout_ms;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &timer_handle));
+  ASSERT_OK(uv_timer_start(&timer_handle,
+                           timer_early_check_cb,
+                           timeout_ms,
+                           0));
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  uv_close((uv_handle_t*) &timer_handle, NULL);
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+static void timer_check_double_call(uv_timer_t* handle) {
+  timer_check_double_call_called++;
+}
+
+TEST_IMPL(timer_no_double_call_once) {
+  uv_timer_t timer_handle;
+  const uint64_t timeout_ms = 10;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &timer_handle));
+  ASSERT_OK(uv_timer_start(&timer_handle,
+                           timer_check_double_call,
+                           timeout_ms,
+                           timeout_ms));
+  uv_sleep(timeout_ms * 2);
+  ASSERT_EQ(1, uv_run(uv_default_loop(), UV_RUN_ONCE));
+  ASSERT_EQ(1, timer_check_double_call_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+TEST_IMPL(timer_no_double_call_nowait) {
+  uv_timer_t timer_handle;
+  const uint64_t timeout_ms = 10;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &timer_handle));
+  ASSERT_OK(uv_timer_start(&timer_handle,
+                           timer_check_double_call,
+                           timeout_ms,
+                           timeout_ms));
+  uv_sleep(timeout_ms * 2);
+  ASSERT_EQ(1, uv_run(uv_default_loop(), UV_RUN_NOWAIT));
+  ASSERT_EQ(1, timer_check_double_call_called);
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}
+
+TEST_IMPL(timer_no_run_on_unref) {
+  uv_timer_t timer_handle;
+
+  ASSERT_OK(uv_timer_init(uv_default_loop(), &timer_handle));
+  ASSERT_OK(uv_timer_start(&timer_handle, (uv_timer_cb) abort, 0, 0));
+  uv_unref((uv_handle_t*) &timer_handle);
+  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
+
+  MAKE_VALGRIND_HAPPY(uv_default_loop());
+  return 0;
+}