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MediaPipe MedataExtractor: use absl::Cleanup for unzClose / unzCloseCurrentFile.

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PiperOrigin-RevId: 479211019
This commit is contained in:
Yuqi Li 2022-10-05 20:41:12 -07:00 committed by Copybara-Service
parent 1a88968099
commit 42978d3e69
2 changed files with 18 additions and 0 deletions
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1
mediapipe/tasks/cc/metadata/BUILD
View File

@ -21,6 +21,7 @@ cc_library(
"//mediapipe/tasks/cc:common",
"//mediapipe/tasks/cc/metadata/utils:zip_readonly_mem_file",
"//mediapipe/tasks/metadata:metadata_schema_cc",
"@com_google_absl//absl/cleanup",
"@com_google_absl//absl/container:flat_hash_map",
"@com_google_absl//absl/memory",
"@com_google_absl//absl/status",

17
mediapipe/tasks/cc/metadata/metadata_extractor.cc
View File

@ -17,6 +17,7 @@ limitations under the License.
#include <string>
#include "absl/cleanup/cleanup.h"
#include "absl/memory/memory.h"
#include "absl/status/status.h"
#include "absl/strings/str_format.h"
@ -79,6 +80,12 @@ absl::StatusOr<ZipFileInfo> GetCurrentZipFileInfo(const unzFile& zf) {
int method;
MP_RETURN_IF_ERROR(UnzipErrorToStatus(
unzOpenCurrentFile2(zf, &method, /*level=*/nullptr, /*raw=*/1)));
absl::Cleanup unzipper_closer = [zf]() {
auto status = UnzipErrorToStatus(unzCloseCurrentFile(zf));
if (!status.ok()) {
LOG(ERROR) << "Failed to close the current zip file: " << status;
}
};
if (method != Z_NO_COMPRESSION) {
return CreateStatusWithPayload(
StatusCode::kUnknown, "Expected uncompressed zip archive.",
@ -110,6 +117,8 @@ absl::StatusOr<ZipFileInfo> GetCurrentZipFileInfo(const unzFile& zf) {
MediaPipeTasksStatus::kMetadataAssociatedFileZipError);
}
// Perform the cleanup manually for error propagation.
std::move(unzipper_closer).Cancel();
// Close file and return.
MP_RETURN_IF_ERROR(UnzipErrorToStatus(unzCloseCurrentFile(zf)));
@ -247,6 +256,11 @@ absl::Status ModelMetadataExtractor::ExtractAssociatedFiles(
// model.
return absl::OkStatus();
}
absl::Cleanup unzipper_closer = [zf]() {
if (unzClose(zf) != UNZ_OK) {
LOG(ERROR) << "Unable to close zip archive.";
}
};
// Get number of files.
unz_global_info global_info;
if (unzGetGlobalInfo(zf, &global_info) != UNZ_OK) {
@ -272,6 +286,9 @@ absl::Status ModelMetadataExtractor::ExtractAssociatedFiles(
MediaPipeTasksStatus::kMetadataAssociatedFileZipError);
}
}
// Perform the cleanup manually for error propagation.
std::move(unzipper_closer).Cancel();
// Close zip.
if (unzClose(zf) != UNZ_OK) {
return CreateStatusWithPayload(