/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <sys/mman.h>

#include <gtest/gtest.h>

#include <ion/ion.h>

#include "ion_test_fixture.h"

class Exit : public IonTest {};

TEST_F(Exit, WithAllocFd) {
    static const size_t allocationSizes[] = {4 * 1024, 64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int handle_fd = -1;

                        ASSERT_EQ(0,
                                  ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id), 0, &handle_fd));
                        ASSERT_NE(-1, handle_fd);
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithRepeatedAllocFd) {
    static const size_t allocationSizes[] = {4 * 1024, 64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            for (unsigned int i = 0; i < 1024; i++) {
                SCOPED_TRACE(::testing::Message()
                             << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
                SCOPED_TRACE(::testing::Message() << "size " << size);
                ASSERT_EXIT(
                        {
                            int handle_fd = -1;

                            ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id), 0,
                                                      &handle_fd));
                            ASSERT_NE(-1, handle_fd);
                            exit(0);
                        },
                        ::testing::ExitedWithCode(0), "")
                        << "failed on heap " << heap.name << ":" << heap.type << ":" << heap.heap_id
                        << " and size " << size << " on iteration " << i;
            }
        }
    }
}

TEST_F(Exit, WithMapping) {
    static const size_t allocationSizes[] = {4 * 1024, 64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id), 0, &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithPartialMapping) {
    static const size_t allocationSizes[] = {64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id), 0, &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);

                        ASSERT_EQ(0, munmap(ptr, size / 2));
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithMappingCached) {
    static const size_t allocationSizes[] = {4 * 1024, 64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id),
                                                  ION_FLAG_CACHED, &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithPartialMappingCached) {
    static const size_t allocationSizes[] = {64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id),
                                                  ION_FLAG_CACHED, &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);

                        ASSERT_EQ(0, munmap(ptr, size / 2));
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithMappingNeedsSync) {
    static const size_t allocationSizes[] = {4 * 1024, 64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id),
                                                  ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC,
                                                  &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}

TEST_F(Exit, WithPartialMappingNeedsSync) {
    static const size_t allocationSizes[] = {64 * 1024, 1024 * 1024, 2 * 1024 * 1024};
    for (const auto& heap : ion_heaps) {
        for (size_t size : allocationSizes) {
            SCOPED_TRACE(::testing::Message()
                         << "heap:" << heap.name << ":" << heap.type << ":" << heap.heap_id);
            SCOPED_TRACE(::testing::Message() << "size " << size);
            EXPECT_EXIT(
                    {
                        int map_fd = -1;

                        ASSERT_EQ(0, ion_alloc_fd(ionfd, size, 0, (1 << heap.heap_id),
                                                  ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC,
                                                  &map_fd));
                        ASSERT_GE(map_fd, 0);

                        void* ptr;
                        ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0);
                        ASSERT_TRUE(ptr != NULL);

                        ASSERT_EQ(0, munmap(ptr, size / 2));
                        exit(0);
                    },
                    ::testing::ExitedWithCode(0), "");
        }
    }
}