/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <dlfcn.h>
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#include <binder/IServiceManager.h>
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#include <gtest/gtest.h>
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#include <linux/ashmem.h>
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#include <sys/mman.h>
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#include <android/ashmemd/IAshmemDeviceService.h>
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using android::IBinder;
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using android::IServiceManager;
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using android::String16;
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using android::ashmemd::IAshmemDeviceService;
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using android::os::ParcelFileDescriptor;
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namespace android {
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namespace ashmemd {
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class AshmemdTest : public ::testing::Test {
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public:
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virtual void SetUp() override {
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sp<IServiceManager> sm = android::defaultServiceManager();
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sp<IBinder> binder = sm->getService(String16("ashmem_device_service"));
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ASSERT_NE(binder, nullptr);
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ashmemService = android::interface_cast<IAshmemDeviceService>(binder);
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ASSERT_NE(ashmemService, nullptr);
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}
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void openFd(ParcelFileDescriptor* fd) {
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auto status = ashmemService->open(fd);
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ASSERT_TRUE(status.isOk());
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ASSERT_GE(fd->get(), 0);
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}
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sp<IAshmemDeviceService> ashmemService;
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};
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TEST_F(AshmemdTest, OpenFd) {
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ParcelFileDescriptor fd;
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openFd(&fd);
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}
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TEST_F(AshmemdTest, OpenMultipleFds) {
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ParcelFileDescriptor fd1;
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ParcelFileDescriptor fd2;
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openFd(&fd1);
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openFd(&fd2);
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ASSERT_NE(fd1.get(), fd2.get());
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}
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TEST_F(AshmemdTest, MmapFd) {
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ParcelFileDescriptor pfd;
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openFd(&pfd);
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int fd = pfd.get();
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size_t testSize = 2097152;
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ASSERT_EQ(ioctl(fd, ASHMEM_SET_NAME, "AshmemdTest"), 0);
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ASSERT_EQ(ioctl(fd, ASHMEM_SET_SIZE, testSize), 0);
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void* data = mmap(NULL, testSize, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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ASSERT_NE(data, MAP_FAILED) << "Failed to mmap() ashmem fd";
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ASSERT_EQ(munmap(data, testSize), 0) << "Failed to munmap() ashmem fd";
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}
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TEST(LibAshmemdClientTest, OpenFd) {
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void* handle = dlopen("libashmemd_client.so", RTLD_NOW);
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ASSERT_NE(handle, nullptr) << "Failed to dlopen() libashmemd_client.so: " << dlerror();
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auto function = (int (*)())dlsym(handle, "openAshmemdFd");
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ASSERT_NE(function, nullptr) << "Failed to dlsym() openAshmemdFd() function: " << dlerror();
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int fd = function();
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ASSERT_GE(fd, 0) << "Failed to open /dev/ashmem";
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}
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} // namespace ashmemd
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} // namespace android
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