From cc24a339d8c0517259084b5c178d784626ba965c Mon Sep 17 00:00:00 2001 From: ImJezze Date: Sun, 21 Feb 2016 11:48:45 +0100 Subject: Merge remote-tracking branch 'refs/remotes/mamedev/master' Second attempt --- 3rdparty/libuv/test/test-loop-handles.c | 337 ++++++++++++++++++++++++++++++++ 1 file changed, 337 insertions(+) create mode 100644 3rdparty/libuv/test/test-loop-handles.c (limited to '3rdparty/libuv/test/test-loop-handles.c') diff --git a/3rdparty/libuv/test/test-loop-handles.c b/3rdparty/libuv/test/test-loop-handles.c new file mode 100644 index 00000000000..c3e8498ae90 --- /dev/null +++ b/3rdparty/libuv/test/test-loop-handles.c @@ -0,0 +1,337 @@ +/* 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. + */ + +/* Tests commented out with XXX are ones that are failing on Linux */ + +/* + * Purpose of this test is to check semantics of starting and stopping + * prepare, check and idle watchers. + * + * - A watcher must be able to safely stop or close itself; + * - Once a watcher is stopped or closed its callback should never be called. + * - If a watcher is closed, it is implicitly stopped and its close_cb should + * be called exactly once. + * - A watcher can safely start and stop other watchers of the same type. + * - Prepare and check watchers are called once per event loop iterations. + * - All active idle watchers are queued when the event loop has no more work + * to do. This is done repeatedly until all idle watchers are inactive. + * - If a watcher starts another watcher of the same type its callback is not + * immediately queued. For check and prepare watchers, that means that if + * a watcher makes another of the same type active, it'll not be called until + * the next event loop iteration. For idle. watchers this means that the + * newly activated idle watcher might not be queued immediately. + * - Prepare, check, idle watchers keep the event loop alive even when they're + * not active. + * + * This is what the test globally does: + * + * - prepare_1 is always active and counts event loop iterations. It also + * creates and starts prepare_2 every other iteration. Finally it verifies + * that no idle watchers are active before polling. + * - prepare_2 is started by prepare_1 every other iteration. It immediately + * stops itself. It verifies that a watcher is not queued immediately + * if created by another watcher of the same type. + * - There's a check watcher that stops the event loop after a certain number + * of iterations. It starts a varying number of idle_1 watchers. + * - Idle_1 watchers stop themselves after being called a few times. All idle_1 + * watchers try to start the idle_2 watcher if it is not already started or + * awaiting its close callback. + * - The idle_2 watcher always exists but immediately closes itself after + * being started by a check_1 watcher. It verifies that a watcher is + * implicitly stopped when closed, and that a watcher can close itself + * safely. + * - There is a repeating timer. It does not keep the event loop alive + * (ev_unref) but makes sure that the loop keeps polling the system for + * events. + */ + + +#include "uv.h" +#include "task.h" + +#include + + +#define IDLE_COUNT 7 +#define ITERATIONS 21 +#define TIMEOUT 100 + + +static uv_prepare_t prepare_1_handle; +static uv_prepare_t prepare_2_handle; + +static uv_check_t check_handle; + +static uv_idle_t idle_1_handles[IDLE_COUNT]; +static uv_idle_t idle_2_handle; + +static uv_timer_t timer_handle; + + +static int loop_iteration = 0; + +static int prepare_1_cb_called = 0; +static int prepare_1_close_cb_called = 0; + +static int prepare_2_cb_called = 0; +static int prepare_2_close_cb_called = 0; + +static int check_cb_called = 0; +static int check_close_cb_called = 0; + +static int idle_1_cb_called = 0; +static int idle_1_close_cb_called = 0; +static int idles_1_active = 0; + +static int idle_2_cb_called = 0; +static int idle_2_close_cb_called = 0; +static int idle_2_cb_started = 0; +static int idle_2_is_active = 0; + + +static void timer_cb(uv_timer_t* handle) { + ASSERT(handle == &timer_handle); +} + + +static void idle_2_close_cb(uv_handle_t* handle) { + fprintf(stderr, "%s", "IDLE_2_CLOSE_CB\n"); + fflush(stderr); + + ASSERT(handle == (uv_handle_t*)&idle_2_handle); + + ASSERT(idle_2_is_active); + + idle_2_close_cb_called++; + idle_2_is_active = 0; +} + + +static void idle_2_cb(uv_idle_t* handle) { + fprintf(stderr, "%s", "IDLE_2_CB\n"); + fflush(stderr); + + ASSERT(handle == &idle_2_handle); + + idle_2_cb_called++; + + uv_close((uv_handle_t*)handle, idle_2_close_cb); +} + + +static void idle_1_cb(uv_idle_t* handle) { + int r; + + fprintf(stderr, "%s", "IDLE_1_CB\n"); + fflush(stderr); + + ASSERT(handle != NULL); + ASSERT(idles_1_active > 0); + + /* Init idle_2 and make it active */ + if (!idle_2_is_active && !uv_is_closing((uv_handle_t*)&idle_2_handle)) { + r = uv_idle_init(uv_default_loop(), &idle_2_handle); + ASSERT(r == 0); + r = uv_idle_start(&idle_2_handle, idle_2_cb); + ASSERT(r == 0); + idle_2_is_active = 1; + idle_2_cb_started++; + } + + idle_1_cb_called++; + + if (idle_1_cb_called % 5 == 0) { + r = uv_idle_stop((uv_idle_t*)handle); + ASSERT(r == 0); + idles_1_active--; + } +} + + +static void idle_1_close_cb(uv_handle_t* handle) { + fprintf(stderr, "%s", "IDLE_1_CLOSE_CB\n"); + fflush(stderr); + + ASSERT(handle != NULL); + + idle_1_close_cb_called++; +} + + +static void prepare_1_close_cb(uv_handle_t* handle) { + fprintf(stderr, "%s", "PREPARE_1_CLOSE_CB"); + fflush(stderr); + ASSERT(handle == (uv_handle_t*)&prepare_1_handle); + + prepare_1_close_cb_called++; +} + + +static void check_close_cb(uv_handle_t* handle) { + fprintf(stderr, "%s", "CHECK_CLOSE_CB\n"); + fflush(stderr); + ASSERT(handle == (uv_handle_t*)&check_handle); + + check_close_cb_called++; +} + + +static void prepare_2_close_cb(uv_handle_t* handle) { + fprintf(stderr, "%s", "PREPARE_2_CLOSE_CB\n"); + fflush(stderr); + ASSERT(handle == (uv_handle_t*)&prepare_2_handle); + + prepare_2_close_cb_called++; +} + + +static void check_cb(uv_check_t* handle) { + int i, r; + + fprintf(stderr, "%s", "CHECK_CB\n"); + fflush(stderr); + ASSERT(handle == &check_handle); + + if (loop_iteration < ITERATIONS) { + /* Make some idle watchers active */ + for (i = 0; i < 1 + (loop_iteration % IDLE_COUNT); i++) { + r = uv_idle_start(&idle_1_handles[i], idle_1_cb); + ASSERT(r == 0); + idles_1_active++; + } + + } else { + /* End of the test - close all handles */ + uv_close((uv_handle_t*)&prepare_1_handle, prepare_1_close_cb); + uv_close((uv_handle_t*)&check_handle, check_close_cb); + uv_close((uv_handle_t*)&prepare_2_handle, prepare_2_close_cb); + + for (i = 0; i < IDLE_COUNT; i++) { + uv_close((uv_handle_t*)&idle_1_handles[i], idle_1_close_cb); + } + + /* This handle is closed/recreated every time, close it only if it is */ + /* active.*/ + if (idle_2_is_active) { + uv_close((uv_handle_t*)&idle_2_handle, idle_2_close_cb); + } + } + + check_cb_called++; +} + + +static void prepare_2_cb(uv_prepare_t* handle) { + int r; + + fprintf(stderr, "%s", "PREPARE_2_CB\n"); + fflush(stderr); + ASSERT(handle == &prepare_2_handle); + + /* prepare_2 gets started by prepare_1 when (loop_iteration % 2 == 0), */ + /* and it stops itself immediately. A started watcher is not queued */ + /* until the next round, so when this callback is made */ + /* (loop_iteration % 2 == 0) cannot be true. */ + ASSERT(loop_iteration % 2 != 0); + + r = uv_prepare_stop((uv_prepare_t*)handle); + ASSERT(r == 0); + + prepare_2_cb_called++; +} + + +static void prepare_1_cb(uv_prepare_t* handle) { + int r; + + fprintf(stderr, "%s", "PREPARE_1_CB\n"); + fflush(stderr); + ASSERT(handle == &prepare_1_handle); + + if (loop_iteration % 2 == 0) { + r = uv_prepare_start(&prepare_2_handle, prepare_2_cb); + ASSERT(r == 0); + } + + prepare_1_cb_called++; + loop_iteration++; + + printf("Loop iteration %d of %d.\n", loop_iteration, ITERATIONS); +} + + +TEST_IMPL(loop_handles) { + int i; + int r; + + r = uv_prepare_init(uv_default_loop(), &prepare_1_handle); + ASSERT(r == 0); + r = uv_prepare_start(&prepare_1_handle, prepare_1_cb); + ASSERT(r == 0); + + r = uv_check_init(uv_default_loop(), &check_handle); + ASSERT(r == 0); + r = uv_check_start(&check_handle, check_cb); + ASSERT(r == 0); + + /* initialize only, prepare_2 is started by prepare_1_cb */ + r = uv_prepare_init(uv_default_loop(), &prepare_2_handle); + ASSERT(r == 0); + + for (i = 0; i < IDLE_COUNT; i++) { + /* initialize only, idle_1 handles are started by check_cb */ + r = uv_idle_init(uv_default_loop(), &idle_1_handles[i]); + ASSERT(r == 0); + } + + /* don't init or start idle_2, both is done by idle_1_cb */ + + /* the timer callback is there to keep the event loop polling */ + /* unref it as it is not supposed to keep the loop alive */ + r = uv_timer_init(uv_default_loop(), &timer_handle); + ASSERT(r == 0); + r = uv_timer_start(&timer_handle, timer_cb, TIMEOUT, TIMEOUT); + ASSERT(r == 0); + uv_unref((uv_handle_t*)&timer_handle); + + r = uv_run(uv_default_loop(), UV_RUN_DEFAULT); + ASSERT(r == 0); + + ASSERT(loop_iteration == ITERATIONS); + + ASSERT(prepare_1_cb_called == ITERATIONS); + ASSERT(prepare_1_close_cb_called == 1); + + ASSERT(prepare_2_cb_called == floor(ITERATIONS / 2.0)); + ASSERT(prepare_2_close_cb_called == 1); + + ASSERT(check_cb_called == ITERATIONS); + ASSERT(check_close_cb_called == 1); + + /* idle_1_cb should be called a lot */ + ASSERT(idle_1_close_cb_called == IDLE_COUNT); + + ASSERT(idle_2_close_cb_called == idle_2_cb_started); + ASSERT(idle_2_is_active == 0); + + MAKE_VALGRIND_HAPPY(); + return 0; +} -- cgit v1.2.3-70-g09d2