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Commit 75a505a1 authored by Jiyong Park's avatar Jiyong Park Committed by Automerger Merge Worker
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Merge "android::base::ResultError/Error are template classes" am: f5caf5b2... 

Merge "android::base::ResultError/Error are template classes" am: f5caf5b2 am: 3b14b986 am: f6ccfb9c am: 3a698c5d

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1918219

Change-Id: Idc671bc232d8c2eb876352f3f712c8cfaae69fdb
parents df09bd00 3a698c5d

fs_mgr/blockdev.cpp

+6 −11
Original line number Diff line number Diff line
@@ -30,7 +30,6 @@ using android::base::Basename; 
using android::base::ErrnoError;

using android::base::Error;

using android::base::Result;

using android::base::ResultError;

using android::base::StartsWith;

using android::base::StringPrintf;

using android::base::unique_fd;
@@ -94,10 +93,8 @@ static Result<uint32_t> BlockDeviceQueueDepth(const std::string& file_path) { 
    std::string blockdev = "/dev/block/" + BlockdevName(statbuf.st_dev);

    LOG(DEBUG) << __func__ << ": " << file_path << " -> " << blockdev;

    if (blockdev.empty()) {

        const std::string err_msg =

                StringPrintf("Failed to convert %u:%u (path %s)", major(statbuf.st_dev),

        return Errorf("Failed to convert {}:{} (path {})", major(statbuf.st_dev),

                      minor(statbuf.st_dev), file_path.c_str());

        return ResultError(err_msg, 0);

    }

    auto& dm = DeviceMapper::Instance();

    for (;;) {
@@ -110,7 +107,7 @@ static Result<uint32_t> BlockDeviceQueueDepth(const std::string& file_path) { 
    }

    std::optional<std::string> maybe_blockdev = android::dm::ExtractBlockDeviceName(blockdev);

    if (!maybe_blockdev) {

        return ResultError("Failed to remove /dev/block/ prefix from " + blockdev, 0);

        return Errorf("Failed to remove /dev/block/ prefix from {}", blockdev);

    }

    blockdev = PartitionParent(*maybe_blockdev);

    LOG(DEBUG) << __func__ << ": "
@@ -119,7 +116,7 @@ static Result<uint32_t> BlockDeviceQueueDepth(const std::string& file_path) { 
            StringPrintf("/sys/class/block/%s/mq/0/nr_tags", blockdev.c_str());

    std::string nr_tags;

    if (!android::base::ReadFileToString(nr_tags_path, &nr_tags)) {

        return ResultError("Failed to read " + nr_tags_path, 0);

        return Errorf("Failed to read {}", nr_tags_path);

    }

    rtrim(nr_tags);

    LOG(DEBUG) << __func__ << ": " << file_path << " is backed by /dev/" << blockdev
@@ -137,11 +134,9 @@ Result<void> ConfigureQueueDepth(const std::string& loop_device_path, 


    const std::string loop_device_name = Basename(loop_device_path);



    const Result<uint32_t> qd = BlockDeviceQueueDepth(file_path);

    const auto qd = BlockDeviceQueueDepth(file_path);

    if (!qd.ok()) {

        LOG(DEBUG) << __func__ << ": "

                   << "BlockDeviceQueueDepth() returned " << qd.error();

        return ResultError(qd.error());

        return qd.error();

    }

    const std::string nr_requests = StringPrintf("%u", *qd);

    const std::string sysfs_path =

fs_mgr/fs_mgr.cpp

+3 −1
Original line number Diff line number Diff line
@@ -2044,7 +2044,9 @@ static bool PrepareZramBackingDevice(off64_t size) { 


    ConfigureIoScheduler(loop_device);



    ConfigureQueueDepth(loop_device, "/");

    if (auto ret = ConfigureQueueDepth(loop_device, "/"); !ret.ok()) {

        LOG(DEBUG) << "Failed to config queue depth: " << ret.error().message();

    }



    // set block size & direct IO

    unique_fd loop_fd(TEMP_FAILURE_RETRY(open(loop_device.c_str(), O_RDWR | O_CLOEXEC)));

init/builtins.cpp

+3 −2
Original line number Diff line number Diff line
@@ -88,6 +88,7 @@ 
using namespace std::literals::string_literals;



using android::base::Basename;

using android::base::ResultError;

using android::base::SetProperty;

using android::base::Split;

using android::base::StartsWith;
@@ -116,7 +117,7 @@ class ErrorIgnoreEnoent { 
                        android::base::GetMinimumLogSeverity() > android::base::DEBUG) {}



    template <typename T>

    operator android::base::expected<T, ResultError>() {

    operator android::base::expected<T, ResultError<int>>() {

        if (ignore_error_) {

            return {};

        }
@@ -130,7 +131,7 @@ class ErrorIgnoreEnoent { 
    }



  private:

    Error error_;

    Error<> error_;

    bool ignore_error_;

};

init/subcontext.cpp

+2 −2
Original line number Diff line number Diff line
@@ -297,7 +297,7 @@ Result<void> Subcontext::Execute(const std::vector<std::string>& args) { 


    if (subcontext_reply->reply_case() == SubcontextReply::kFailure) {

        auto& failure = subcontext_reply->failure();

        return ResultError(failure.error_string(), failure.error_errno());

        return ResultError<>(failure.error_string(), failure.error_errno());

    }



    if (subcontext_reply->reply_case() != SubcontextReply::kSuccess) {
@@ -321,7 +321,7 @@ Result<std::vector<std::string>> Subcontext::ExpandArgs(const std::vector<std::s 


    if (subcontext_reply->reply_case() == SubcontextReply::kFailure) {

        auto& failure = subcontext_reply->failure();

        return ResultError(failure.error_string(), failure.error_errno());

        return ResultError<>(failure.error_string(), failure.error_errno());

    }



    if (subcontext_reply->reply_case() != SubcontextReply::kExpandArgsReply) {