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Commit b7b2d125 authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "libsnapshot: Partially implement OpenSnapshotWriter." am: 15f97700 

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1433573

Change-Id: Ibd3488f7f1d40fb75616e82dd9aa44c064cb558b
parents d116e250 15f97700

fastboot/Android.bp

+1 −0
Original line number Diff line number Diff line
@@ -147,6 +147,7 @@ cc_binary { 
    static_libs: [

        "libgtest_prod",

        "libhealthhalutils",

        "libsnapshot_cow",

        "libsnapshot_nobinder",

        "update_metadata-protos",

    ],

fs_mgr/libsnapshot/Android.bp

+4 −0
Original line number Diff line number Diff line
@@ -77,6 +77,7 @@ filegroup { 
        "snapshot_stats.cpp",

        "snapshot_stub.cpp",

        "snapshot_metadata_updater.cpp",

        "snapshot_writer.cpp",

        "partition_cow_creator.cpp",

        "return.cpp",

        "utility.cpp",
@@ -215,6 +216,7 @@ cc_defaults { 
        "libgmock",

        "liblp",

        "libsnapshot",

        "libsnapshot_cow",

        "libsnapshot_test_helpers",

        "libsparse",

    ],
@@ -249,6 +251,7 @@ cc_binary { 
    static_libs: [

        "libfstab",

        "libsnapshot",

        "libsnapshot_cow",

        "update_metadata-protos",

    ],

    shared_libs: [
@@ -312,6 +315,7 @@ cc_defaults { 
        "libgmock", // from libsnapshot_test_helpers

        "liblog",

        "liblp",

        "libsnapshot_cow",

        "libsnapshot_test_helpers",

        "libprotobuf-mutator",

    ],

fs_mgr/libsnapshot/cow_writer.cpp

+6 −3
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ namespace snapshot { 


static_assert(sizeof(off_t) == sizeof(uint64_t));



using android::base::borrowed_fd;

using android::base::unique_fd;



bool ICowWriter::AddCopy(uint64_t new_block, uint64_t old_block) {

    if (!ValidateNewBlock(new_block)) {

        return false;
@@ -98,12 +101,12 @@ bool CowWriter::ParseOptions() { 
    return true;

}



bool CowWriter::Initialize(android::base::unique_fd&& fd, OpenMode mode) {

bool CowWriter::Initialize(unique_fd&& fd, OpenMode mode) {

    owned_fd_ = std::move(fd);

    return Initialize(android::base::borrowed_fd{owned_fd_}, mode);

    return Initialize(borrowed_fd{owned_fd_}, mode);

}



bool CowWriter::Initialize(android::base::borrowed_fd fd, OpenMode mode) {

bool CowWriter::Initialize(borrowed_fd fd, OpenMode mode) {

    fd_ = fd;



    if (!ParseOptions()) {

fs_mgr/libsnapshot/include/libsnapshot/cow_writer.h

+3 −0
Original line number Diff line number Diff line
@@ -58,6 +58,9 @@ class ICowWriter { 
    // Return number of bytes the cow image occupies on disk.

    virtual uint64_t GetCowSize() = 0;



    // Returns true if AddCopy() operations are supported.

    virtual bool SupportsCopyOperation() const { return true; }



    const CowOptions& options() { return options_; }



  protected:

fs_mgr/libsnapshot/include/libsnapshot/mock_snapshot.h

+1 −3
Original line number Diff line number Diff line
@@ -38,9 +38,7 @@ class MockSnapshotManager : public ISnapshotManager { 
                (const android::fs_mgr::CreateLogicalPartitionParams& params,

                 std::string* snapshot_path),

                (override));

    MOCK_METHOD(std::unique_ptr<ICowWriter>, OpenSnapshotWriter,

                (const android::fs_mgr::CreateLogicalPartitionParams& params), (override));

    MOCK_METHOD(std::unique_ptr<FileDescriptor>, OpenSnapshotReader,

    MOCK_METHOD(std::unique_ptr<ISnapshotWriter>, OpenSnapshotWriter,

                (const android::fs_mgr::CreateLogicalPartitionParams& params), (override));

    MOCK_METHOD(bool, UnmapUpdateSnapshot, (const std::string& target_partition_name), (override));

    MOCK_METHOD(bool, NeedSnapshotsInFirstStageMount, (), (override));