lib/magma/tests/unit_tests/test_platform_interrupt.cc

// Copyright 2016 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "helper/platform_device_helper.h"
#include "magma_util/macros.h"
#include "platform_pci_device.h"
#include "gtest/gtest.h"
#include <thread>

TEST(PlatformDevice, RegisterInterrupt)
{
    magma::PlatformDevice* platform_device = TestPlatformDevice::GetInstance();
    ASSERT_NE(platform_device, nullptr);

    // Less than 100 interrupts should be assigned to this driver.
    auto interrupt = platform_device->RegisterInterrupt(100);
    EXPECT_EQ(nullptr, interrupt);

    uint32_t index = 0;
    interrupt = platform_device->RegisterInterrupt(index);
    ASSERT_NE(nullptr, interrupt);

    std::thread thread([interrupt_raw = interrupt.get()] {
        DLOG("waiting for interrupt");
        interrupt_raw->Wait();
        DLOG("returned from interrupt");
    });

    interrupt->Signal();

    DLOG("waiting for thread");
    thread.join();
}

TEST(PlatformPciDevice, RegisterInterrupt)
{
    magma::PlatformPciDevice* platform_device = TestPlatformPciDevice::GetInstance();
    ASSERT_NE(platform_device, nullptr);

    auto interrupt = platform_device->RegisterInterrupt();
    // Interrupt may be null if no core device support.
    if (interrupt) {
        std::thread thread([interrupt_raw = interrupt.get()] {
            DLOG("waiting for interrupt");
            interrupt_raw->Wait();
            DLOG("returned from interrupt");
        });

        interrupt->Signal();

        DLOG("waiting for thread");
        thread.join();
    }
}