876 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			876 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 * AioContext tests
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 *
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 * Copyright Red Hat, Inc. 2012
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 *
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 * Authors:
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 *  Paolo Bonzini    <pbonzini@redhat.com>
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 *
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 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
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 * See the COPYING.LIB file in the top-level directory.
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 */
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#include "qemu/osdep.h"
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#include "block/aio.h"
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#include "qapi/error.h"
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#include "qemu/timer.h"
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#include "qemu/sockets.h"
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#include "qemu/error-report.h"
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static AioContext *ctx;
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typedef struct {
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    EventNotifier e;
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    int n;
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    int active;
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    bool auto_set;
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} EventNotifierTestData;
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/* Wait until event notifier becomes inactive */
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static void wait_until_inactive(EventNotifierTestData *data)
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{
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    while (data->active > 0) {
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        aio_poll(ctx, true);
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    }
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}
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/* Simple callbacks for testing.  */
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typedef struct {
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    QEMUBH *bh;
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    int n;
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    int max;
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} BHTestData;
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typedef struct {
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    QEMUTimer timer;
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    QEMUClockType clock_type;
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    int n;
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    int max;
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    int64_t ns;
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    AioContext *ctx;
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} TimerTestData;
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static void bh_test_cb(void *opaque)
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{
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    BHTestData *data = opaque;
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    if (++data->n < data->max) {
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        qemu_bh_schedule(data->bh);
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    }
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}
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static void timer_test_cb(void *opaque)
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{
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    TimerTestData *data = opaque;
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    if (++data->n < data->max) {
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        timer_mod(&data->timer,
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                  qemu_clock_get_ns(data->clock_type) + data->ns);
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    }
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}
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static void dummy_io_handler_read(EventNotifier *e)
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{
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}
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static void bh_delete_cb(void *opaque)
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{
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    BHTestData *data = opaque;
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    if (++data->n < data->max) {
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        qemu_bh_schedule(data->bh);
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    } else {
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        qemu_bh_delete(data->bh);
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        data->bh = NULL;
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    }
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}
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static void event_ready_cb(EventNotifier *e)
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{
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    EventNotifierTestData *data = container_of(e, EventNotifierTestData, e);
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    g_assert(event_notifier_test_and_clear(e));
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    data->n++;
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    if (data->active > 0) {
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        data->active--;
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    }
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    if (data->auto_set && data->active) {
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        event_notifier_set(e);
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    }
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}
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/* Tests using aio_*.  */
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typedef struct {
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    QemuMutex start_lock;
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    bool thread_acquired;
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} AcquireTestData;
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static void *test_acquire_thread(void *opaque)
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{
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    AcquireTestData *data = opaque;
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    /* Wait for other thread to let us start */
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    qemu_mutex_lock(&data->start_lock);
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    qemu_mutex_unlock(&data->start_lock);
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    aio_context_acquire(ctx);
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    aio_context_release(ctx);
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    data->thread_acquired = true; /* success, we got here */
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    return NULL;
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}
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static void set_event_notifier(AioContext *ctx, EventNotifier *notifier,
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                               EventNotifierHandler *handler)
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{
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    aio_set_event_notifier(ctx, notifier, false, handler);
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}
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static void dummy_notifier_read(EventNotifier *unused)
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{
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    g_assert(false); /* should never be invoked */
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}
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static void test_acquire(void)
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{
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    QemuThread thread;
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    EventNotifier notifier;
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    AcquireTestData data;
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    /* Dummy event notifier ensures aio_poll() will block */
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    event_notifier_init(¬ifier, false);
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    set_event_notifier(ctx, ¬ifier, dummy_notifier_read);
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    g_assert(!aio_poll(ctx, false)); /* consume aio_notify() */
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    qemu_mutex_init(&data.start_lock);
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    qemu_mutex_lock(&data.start_lock);
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    data.thread_acquired = false;
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    qemu_thread_create(&thread, "test_acquire_thread",
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                       test_acquire_thread,
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                       &data, QEMU_THREAD_JOINABLE);
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    /* Block in aio_poll(), let other thread kick us and acquire context */
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    aio_context_acquire(ctx);
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    qemu_mutex_unlock(&data.start_lock); /* let the thread run */
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    g_assert(!aio_poll(ctx, true));
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    aio_context_release(ctx);
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    qemu_thread_join(&thread);
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    set_event_notifier(ctx, ¬ifier, NULL);
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    event_notifier_cleanup(¬ifier);
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    g_assert(data.thread_acquired);
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}
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static void test_bh_schedule(void)
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{
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    BHTestData data = { .n = 0 };
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    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
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    qemu_bh_schedule(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert(aio_poll(ctx, true));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    qemu_bh_delete(data.bh);
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}
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static void test_bh_schedule10(void)
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{
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    BHTestData data = { .n = 0, .max = 10 };
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    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
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    qemu_bh_schedule(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert(aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert(aio_poll(ctx, true));
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    g_assert_cmpint(data.n, ==, 2);
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    while (data.n < 10) {
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        aio_poll(ctx, true);
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    }
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    g_assert_cmpint(data.n, ==, 10);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 10);
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    qemu_bh_delete(data.bh);
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}
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static void test_bh_cancel(void)
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{
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    BHTestData data = { .n = 0 };
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    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
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    qemu_bh_schedule(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    qemu_bh_cancel(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    qemu_bh_delete(data.bh);
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}
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static void test_bh_delete(void)
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{
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    BHTestData data = { .n = 0 };
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    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
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    qemu_bh_schedule(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    qemu_bh_delete(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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}
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static void test_bh_delete_from_cb(void)
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{
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    BHTestData data1 = { .n = 0, .max = 1 };
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    data1.bh = aio_bh_new(ctx, bh_delete_cb, &data1);
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    qemu_bh_schedule(data1.bh);
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    g_assert_cmpint(data1.n, ==, 0);
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    while (data1.n < data1.max) {
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        aio_poll(ctx, true);
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    }
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    g_assert_cmpint(data1.n, ==, data1.max);
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    g_assert(data1.bh == NULL);
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    g_assert(!aio_poll(ctx, false));
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}
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static void test_bh_delete_from_cb_many(void)
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{
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    BHTestData data1 = { .n = 0, .max = 1 };
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    BHTestData data2 = { .n = 0, .max = 3 };
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    BHTestData data3 = { .n = 0, .max = 2 };
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    BHTestData data4 = { .n = 0, .max = 4 };
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    data1.bh = aio_bh_new(ctx, bh_delete_cb, &data1);
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    data2.bh = aio_bh_new(ctx, bh_delete_cb, &data2);
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    data3.bh = aio_bh_new(ctx, bh_delete_cb, &data3);
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    data4.bh = aio_bh_new(ctx, bh_delete_cb, &data4);
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    qemu_bh_schedule(data1.bh);
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    qemu_bh_schedule(data2.bh);
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    qemu_bh_schedule(data3.bh);
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    qemu_bh_schedule(data4.bh);
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    g_assert_cmpint(data1.n, ==, 0);
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    g_assert_cmpint(data2.n, ==, 0);
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    g_assert_cmpint(data3.n, ==, 0);
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    g_assert_cmpint(data4.n, ==, 0);
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    g_assert(aio_poll(ctx, false));
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    g_assert_cmpint(data1.n, ==, 1);
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    g_assert_cmpint(data2.n, ==, 1);
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    g_assert_cmpint(data3.n, ==, 1);
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    g_assert_cmpint(data4.n, ==, 1);
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    g_assert(data1.bh == NULL);
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    while (data1.n < data1.max ||
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           data2.n < data2.max ||
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           data3.n < data3.max ||
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           data4.n < data4.max) {
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        aio_poll(ctx, true);
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    }
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    g_assert_cmpint(data1.n, ==, data1.max);
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    g_assert_cmpint(data2.n, ==, data2.max);
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    g_assert_cmpint(data3.n, ==, data3.max);
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    g_assert_cmpint(data4.n, ==, data4.max);
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    g_assert(data1.bh == NULL);
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    g_assert(data2.bh == NULL);
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    g_assert(data3.bh == NULL);
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    g_assert(data4.bh == NULL);
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}
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static void test_bh_flush(void)
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{
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    BHTestData data = { .n = 0 };
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    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
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    qemu_bh_schedule(data.bh);
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert(aio_poll(ctx, true));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    qemu_bh_delete(data.bh);
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}
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static void test_set_event_notifier(void)
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{
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    EventNotifierTestData data = { .n = 0, .active = 0 };
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    event_notifier_init(&data.e, false);
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    set_event_notifier(ctx, &data.e, event_ready_cb);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    set_event_notifier(ctx, &data.e, NULL);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    event_notifier_cleanup(&data.e);
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}
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static void test_wait_event_notifier(void)
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{
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    EventNotifierTestData data = { .n = 0, .active = 1 };
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    event_notifier_init(&data.e, false);
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    set_event_notifier(ctx, &data.e, event_ready_cb);
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    while (aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert_cmpint(data.active, ==, 1);
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    event_notifier_set(&data.e);
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    g_assert(aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert_cmpint(data.active, ==, 0);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert_cmpint(data.active, ==, 0);
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    set_event_notifier(ctx, &data.e, NULL);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    event_notifier_cleanup(&data.e);
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}
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static void test_flush_event_notifier(void)
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{
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    EventNotifierTestData data = { .n = 0, .active = 10, .auto_set = true };
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    event_notifier_init(&data.e, false);
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    set_event_notifier(ctx, &data.e, event_ready_cb);
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    while (aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    g_assert_cmpint(data.active, ==, 10);
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    event_notifier_set(&data.e);
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    g_assert(aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert_cmpint(data.active, ==, 9);
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    g_assert(aio_poll(ctx, false));
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    wait_until_inactive(&data);
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    g_assert_cmpint(data.n, ==, 10);
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    g_assert_cmpint(data.active, ==, 0);
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    g_assert(!aio_poll(ctx, false));
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    set_event_notifier(ctx, &data.e, NULL);
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    g_assert(!aio_poll(ctx, false));
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    event_notifier_cleanup(&data.e);
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}
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static void test_aio_external_client(void)
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{
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    int i, j;
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    for (i = 1; i < 3; i++) {
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        EventNotifierTestData data = { .n = 0, .active = 10, .auto_set = true };
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        event_notifier_init(&data.e, false);
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        aio_set_event_notifier(ctx, &data.e, true, event_ready_cb);
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        event_notifier_set(&data.e);
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        for (j = 0; j < i; j++) {
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            aio_disable_external(ctx);
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        }
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        for (j = 0; j < i; j++) {
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            assert(!aio_poll(ctx, false));
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            assert(event_notifier_test_and_clear(&data.e));
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            event_notifier_set(&data.e);
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            aio_enable_external(ctx);
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        }
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        assert(aio_poll(ctx, false));
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        set_event_notifier(ctx, &data.e, NULL);
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        event_notifier_cleanup(&data.e);
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    }
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}
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static void test_wait_event_notifier_noflush(void)
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{
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    EventNotifierTestData data = { .n = 0 };
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    EventNotifierTestData dummy = { .n = 0, .active = 1 };
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    event_notifier_init(&data.e, false);
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    set_event_notifier(ctx, &data.e, event_ready_cb);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 0);
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    /* Until there is an active descriptor, aio_poll may or may not call
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     * event_ready_cb.  Still, it must not block.  */
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    event_notifier_set(&data.e);
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    g_assert(aio_poll(ctx, true));
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    data.n = 0;
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    /* An active event notifier forces aio_poll to look at EventNotifiers.  */
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    event_notifier_init(&dummy.e, false);
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    set_event_notifier(ctx, &dummy.e, event_ready_cb);
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    event_notifier_set(&data.e);
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    g_assert(aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    g_assert(!aio_poll(ctx, false));
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    g_assert_cmpint(data.n, ==, 1);
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    event_notifier_set(&data.e);
 | 
						|
    g_assert(aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
    g_assert(!aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    event_notifier_set(&dummy.e);
 | 
						|
    wait_until_inactive(&dummy);
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
    g_assert_cmpint(dummy.n, ==, 1);
 | 
						|
    g_assert_cmpint(dummy.active, ==, 0);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &dummy.e, NULL);
 | 
						|
    event_notifier_cleanup(&dummy.e);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &data.e, NULL);
 | 
						|
    g_assert(!aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    event_notifier_cleanup(&data.e);
 | 
						|
}
 | 
						|
 | 
						|
static void test_timer_schedule(void)
 | 
						|
{
 | 
						|
    TimerTestData data = { .n = 0, .ctx = ctx, .ns = SCALE_MS * 750LL,
 | 
						|
                           .max = 2,
 | 
						|
                           .clock_type = QEMU_CLOCK_REALTIME };
 | 
						|
    EventNotifier e;
 | 
						|
 | 
						|
    /* aio_poll will not block to wait for timers to complete unless it has
 | 
						|
     * an fd to wait on. Fixing this breaks other tests. So create a dummy one.
 | 
						|
     */
 | 
						|
    event_notifier_init(&e, false);
 | 
						|
    set_event_notifier(ctx, &e, dummy_io_handler_read);
 | 
						|
    aio_poll(ctx, false);
 | 
						|
 | 
						|
    aio_timer_init(ctx, &data.timer, data.clock_type,
 | 
						|
                   SCALE_NS, timer_test_cb, &data);
 | 
						|
    timer_mod(&data.timer,
 | 
						|
              qemu_clock_get_ns(data.clock_type) +
 | 
						|
              data.ns);
 | 
						|
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    /* timer_mod may well cause an event notifer to have gone off,
 | 
						|
     * so clear that
 | 
						|
     */
 | 
						|
    do {} while (aio_poll(ctx, false));
 | 
						|
 | 
						|
    g_assert(!aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_usleep(1 * G_USEC_PER_SEC);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    /* timer_mod called by our callback */
 | 
						|
    do {} while (aio_poll(ctx, false));
 | 
						|
 | 
						|
    g_assert(!aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    g_assert(aio_poll(ctx, true));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    /* As max is now 2, an event notifier should not have gone off */
 | 
						|
 | 
						|
    g_assert(!aio_poll(ctx, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &e, NULL);
 | 
						|
    event_notifier_cleanup(&e);
 | 
						|
 | 
						|
    timer_del(&data.timer);
 | 
						|
}
 | 
						|
 | 
						|
/* Now the same tests, using the context as a GSource.  They are
 | 
						|
 * very similar to the ones above, with g_main_context_iteration
 | 
						|
 * replacing aio_poll.  However:
 | 
						|
 * - sometimes both the AioContext and the glib main loop wake
 | 
						|
 *   themselves up.  Hence, some "g_assert(!aio_poll(ctx, false));"
 | 
						|
 *   are replaced by "while (g_main_context_iteration(NULL, false));".
 | 
						|
 * - there is no exact replacement for a blocking wait.
 | 
						|
 *   "while (g_main_context_iteration(NULL, true)" seems to work,
 | 
						|
 *   but it is not documented _why_ it works.  For these tests a
 | 
						|
 *   non-blocking loop like "while (g_main_context_iteration(NULL, false)"
 | 
						|
 *   works well, and that's what I am using.
 | 
						|
 */
 | 
						|
 | 
						|
static void test_source_flush(void)
 | 
						|
{
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    aio_notify(ctx);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_schedule(void)
 | 
						|
{
 | 
						|
    BHTestData data = { .n = 0 };
 | 
						|
    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
 | 
						|
 | 
						|
    qemu_bh_schedule(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, true));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    qemu_bh_delete(data.bh);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_schedule10(void)
 | 
						|
{
 | 
						|
    BHTestData data = { .n = 0, .max = 10 };
 | 
						|
    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
 | 
						|
 | 
						|
    qemu_bh_schedule(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, true));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 10);
 | 
						|
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 10);
 | 
						|
    qemu_bh_delete(data.bh);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_cancel(void)
 | 
						|
{
 | 
						|
    BHTestData data = { .n = 0 };
 | 
						|
    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
 | 
						|
 | 
						|
    qemu_bh_schedule(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    qemu_bh_cancel(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
    qemu_bh_delete(data.bh);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_delete(void)
 | 
						|
{
 | 
						|
    BHTestData data = { .n = 0 };
 | 
						|
    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
 | 
						|
 | 
						|
    qemu_bh_schedule(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    qemu_bh_delete(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_delete_from_cb(void)
 | 
						|
{
 | 
						|
    BHTestData data1 = { .n = 0, .max = 1 };
 | 
						|
 | 
						|
    data1.bh = aio_bh_new(ctx, bh_delete_cb, &data1);
 | 
						|
 | 
						|
    qemu_bh_schedule(data1.bh);
 | 
						|
    g_assert_cmpint(data1.n, ==, 0);
 | 
						|
 | 
						|
    g_main_context_iteration(NULL, true);
 | 
						|
    g_assert_cmpint(data1.n, ==, data1.max);
 | 
						|
    g_assert(data1.bh == NULL);
 | 
						|
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_delete_from_cb_many(void)
 | 
						|
{
 | 
						|
    BHTestData data1 = { .n = 0, .max = 1 };
 | 
						|
    BHTestData data2 = { .n = 0, .max = 3 };
 | 
						|
    BHTestData data3 = { .n = 0, .max = 2 };
 | 
						|
    BHTestData data4 = { .n = 0, .max = 4 };
 | 
						|
 | 
						|
    data1.bh = aio_bh_new(ctx, bh_delete_cb, &data1);
 | 
						|
    data2.bh = aio_bh_new(ctx, bh_delete_cb, &data2);
 | 
						|
    data3.bh = aio_bh_new(ctx, bh_delete_cb, &data3);
 | 
						|
    data4.bh = aio_bh_new(ctx, bh_delete_cb, &data4);
 | 
						|
 | 
						|
    qemu_bh_schedule(data1.bh);
 | 
						|
    qemu_bh_schedule(data2.bh);
 | 
						|
    qemu_bh_schedule(data3.bh);
 | 
						|
    qemu_bh_schedule(data4.bh);
 | 
						|
    g_assert_cmpint(data1.n, ==, 0);
 | 
						|
    g_assert_cmpint(data2.n, ==, 0);
 | 
						|
    g_assert_cmpint(data3.n, ==, 0);
 | 
						|
    g_assert_cmpint(data4.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data1.n, ==, 1);
 | 
						|
    g_assert_cmpint(data2.n, ==, 1);
 | 
						|
    g_assert_cmpint(data3.n, ==, 1);
 | 
						|
    g_assert_cmpint(data4.n, ==, 1);
 | 
						|
    g_assert(data1.bh == NULL);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data1.n, ==, data1.max);
 | 
						|
    g_assert_cmpint(data2.n, ==, data2.max);
 | 
						|
    g_assert_cmpint(data3.n, ==, data3.max);
 | 
						|
    g_assert_cmpint(data4.n, ==, data4.max);
 | 
						|
    g_assert(data1.bh == NULL);
 | 
						|
    g_assert(data2.bh == NULL);
 | 
						|
    g_assert(data3.bh == NULL);
 | 
						|
    g_assert(data4.bh == NULL);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_bh_flush(void)
 | 
						|
{
 | 
						|
    BHTestData data = { .n = 0 };
 | 
						|
    data.bh = aio_bh_new(ctx, bh_test_cb, &data);
 | 
						|
 | 
						|
    qemu_bh_schedule(data.bh);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, true));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    qemu_bh_delete(data.bh);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_set_event_notifier(void)
 | 
						|
{
 | 
						|
    EventNotifierTestData data = { .n = 0, .active = 0 };
 | 
						|
    event_notifier_init(&data.e, false);
 | 
						|
    set_event_notifier(ctx, &data.e, event_ready_cb);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &data.e, NULL);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
    event_notifier_cleanup(&data.e);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_wait_event_notifier(void)
 | 
						|
{
 | 
						|
    EventNotifierTestData data = { .n = 0, .active = 1 };
 | 
						|
    event_notifier_init(&data.e, false);
 | 
						|
    set_event_notifier(ctx, &data.e, event_ready_cb);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
    g_assert_cmpint(data.active, ==, 1);
 | 
						|
 | 
						|
    event_notifier_set(&data.e);
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    g_assert_cmpint(data.active, ==, 0);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    g_assert_cmpint(data.active, ==, 0);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &data.e, NULL);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    event_notifier_cleanup(&data.e);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_flush_event_notifier(void)
 | 
						|
{
 | 
						|
    EventNotifierTestData data = { .n = 0, .active = 10, .auto_set = true };
 | 
						|
    event_notifier_init(&data.e, false);
 | 
						|
    set_event_notifier(ctx, &data.e, event_ready_cb);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
    g_assert_cmpint(data.active, ==, 10);
 | 
						|
 | 
						|
    event_notifier_set(&data.e);
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    g_assert_cmpint(data.active, ==, 9);
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 10);
 | 
						|
    g_assert_cmpint(data.active, ==, 0);
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
 | 
						|
    set_event_notifier(ctx, &data.e, NULL);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    event_notifier_cleanup(&data.e);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_wait_event_notifier_noflush(void)
 | 
						|
{
 | 
						|
    EventNotifierTestData data = { .n = 0 };
 | 
						|
    EventNotifierTestData dummy = { .n = 0, .active = 1 };
 | 
						|
 | 
						|
    event_notifier_init(&data.e, false);
 | 
						|
    set_event_notifier(ctx, &data.e, event_ready_cb);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    /* Until there is an active descriptor, glib may or may not call
 | 
						|
     * event_ready_cb.  Still, it must not block.  */
 | 
						|
    event_notifier_set(&data.e);
 | 
						|
    g_main_context_iteration(NULL, true);
 | 
						|
    data.n = 0;
 | 
						|
 | 
						|
    /* An active event notifier forces aio_poll to look at EventNotifiers.  */
 | 
						|
    event_notifier_init(&dummy.e, false);
 | 
						|
    set_event_notifier(ctx, &dummy.e, event_ready_cb);
 | 
						|
 | 
						|
    event_notifier_set(&data.e);
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
 | 
						|
    event_notifier_set(&data.e);
 | 
						|
    g_assert(g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
    g_assert(!g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    event_notifier_set(&dummy.e);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
    g_assert_cmpint(dummy.n, ==, 1);
 | 
						|
    g_assert_cmpint(dummy.active, ==, 0);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &dummy.e, NULL);
 | 
						|
    event_notifier_cleanup(&dummy.e);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &data.e, NULL);
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
 | 
						|
    event_notifier_cleanup(&data.e);
 | 
						|
}
 | 
						|
 | 
						|
static void test_source_timer_schedule(void)
 | 
						|
{
 | 
						|
    TimerTestData data = { .n = 0, .ctx = ctx, .ns = SCALE_MS * 750LL,
 | 
						|
                           .max = 2,
 | 
						|
                           .clock_type = QEMU_CLOCK_REALTIME };
 | 
						|
    EventNotifier e;
 | 
						|
    int64_t expiry;
 | 
						|
 | 
						|
    /* aio_poll will not block to wait for timers to complete unless it has
 | 
						|
     * an fd to wait on. Fixing this breaks other tests. So create a dummy one.
 | 
						|
     */
 | 
						|
    event_notifier_init(&e, false);
 | 
						|
    set_event_notifier(ctx, &e, dummy_io_handler_read);
 | 
						|
    do {} while (g_main_context_iteration(NULL, false));
 | 
						|
 | 
						|
    aio_timer_init(ctx, &data.timer, data.clock_type,
 | 
						|
                   SCALE_NS, timer_test_cb, &data);
 | 
						|
    expiry = qemu_clock_get_ns(data.clock_type) +
 | 
						|
        data.ns;
 | 
						|
    timer_mod(&data.timer, expiry);
 | 
						|
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_usleep(1 * G_USEC_PER_SEC);
 | 
						|
    g_assert_cmpint(data.n, ==, 0);
 | 
						|
 | 
						|
    g_assert(g_main_context_iteration(NULL, true));
 | 
						|
    g_assert_cmpint(data.n, ==, 1);
 | 
						|
    expiry += data.ns;
 | 
						|
 | 
						|
    while (data.n < 2) {
 | 
						|
        g_main_context_iteration(NULL, true);
 | 
						|
    }
 | 
						|
 | 
						|
    g_assert_cmpint(data.n, ==, 2);
 | 
						|
    g_assert(qemu_clock_get_ns(data.clock_type) > expiry);
 | 
						|
 | 
						|
    set_event_notifier(ctx, &e, NULL);
 | 
						|
    event_notifier_cleanup(&e);
 | 
						|
 | 
						|
    timer_del(&data.timer);
 | 
						|
}
 | 
						|
 | 
						|
 | 
						|
/* End of tests.  */
 | 
						|
 | 
						|
int main(int argc, char **argv)
 | 
						|
{
 | 
						|
    Error *local_error = NULL;
 | 
						|
    GSource *src;
 | 
						|
 | 
						|
    init_clocks();
 | 
						|
 | 
						|
    ctx = aio_context_new(&local_error);
 | 
						|
    if (!ctx) {
 | 
						|
        error_reportf_err(local_error, "Failed to create AIO Context: ");
 | 
						|
        exit(1);
 | 
						|
    }
 | 
						|
    src = aio_get_g_source(ctx);
 | 
						|
    g_source_attach(src, NULL);
 | 
						|
    g_source_unref(src);
 | 
						|
 | 
						|
    while (g_main_context_iteration(NULL, false));
 | 
						|
 | 
						|
    g_test_init(&argc, &argv, NULL);
 | 
						|
    g_test_add_func("/aio/acquire",                 test_acquire);
 | 
						|
    g_test_add_func("/aio/bh/schedule",             test_bh_schedule);
 | 
						|
    g_test_add_func("/aio/bh/schedule10",           test_bh_schedule10);
 | 
						|
    g_test_add_func("/aio/bh/cancel",               test_bh_cancel);
 | 
						|
    g_test_add_func("/aio/bh/delete",               test_bh_delete);
 | 
						|
    g_test_add_func("/aio/bh/callback-delete/one",  test_bh_delete_from_cb);
 | 
						|
    g_test_add_func("/aio/bh/callback-delete/many", test_bh_delete_from_cb_many);
 | 
						|
    g_test_add_func("/aio/bh/flush",                test_bh_flush);
 | 
						|
    g_test_add_func("/aio/event/add-remove",        test_set_event_notifier);
 | 
						|
    g_test_add_func("/aio/event/wait",              test_wait_event_notifier);
 | 
						|
    g_test_add_func("/aio/event/wait/no-flush-cb",  test_wait_event_notifier_noflush);
 | 
						|
    g_test_add_func("/aio/event/flush",             test_flush_event_notifier);
 | 
						|
    g_test_add_func("/aio/external-client",         test_aio_external_client);
 | 
						|
    g_test_add_func("/aio/timer/schedule",          test_timer_schedule);
 | 
						|
 | 
						|
    g_test_add_func("/aio-gsource/flush",                   test_source_flush);
 | 
						|
    g_test_add_func("/aio-gsource/bh/schedule",             test_source_bh_schedule);
 | 
						|
    g_test_add_func("/aio-gsource/bh/schedule10",           test_source_bh_schedule10);
 | 
						|
    g_test_add_func("/aio-gsource/bh/cancel",               test_source_bh_cancel);
 | 
						|
    g_test_add_func("/aio-gsource/bh/delete",               test_source_bh_delete);
 | 
						|
    g_test_add_func("/aio-gsource/bh/callback-delete/one",  test_source_bh_delete_from_cb);
 | 
						|
    g_test_add_func("/aio-gsource/bh/callback-delete/many", test_source_bh_delete_from_cb_many);
 | 
						|
    g_test_add_func("/aio-gsource/bh/flush",                test_source_bh_flush);
 | 
						|
    g_test_add_func("/aio-gsource/event/add-remove",        test_source_set_event_notifier);
 | 
						|
    g_test_add_func("/aio-gsource/event/wait",              test_source_wait_event_notifier);
 | 
						|
    g_test_add_func("/aio-gsource/event/wait/no-flush-cb",  test_source_wait_event_notifier_noflush);
 | 
						|
    g_test_add_func("/aio-gsource/event/flush",             test_source_flush_event_notifier);
 | 
						|
    g_test_add_func("/aio-gsource/timer/schedule",          test_source_timer_schedule);
 | 
						|
    return g_test_run();
 | 
						|
}
 |