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/*
* Copyright (C) 2017 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 "io/Util.h"
#include "google/protobuf/io/zero_copy_stream_impl_lite.h"
#include "trace/TraceBuffer.h"
using ::android::StringPiece;
using ::google::protobuf::io::ZeroCopyOutputStream;
namespace aapt {
namespace io {
bool CopyInputStreamToArchive(IAaptContext* context, InputStream* in, const std::string& out_path,
uint32_t compression_flags, IArchiveWriter* writer) {
TRACE_CALL();
if (context->IsVerbose()) {
context->GetDiagnostics()->Note(DiagMessage() << "writing " << out_path << " to archive");
}
if (!writer->WriteFile(out_path, compression_flags, in)) {
context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path
<< " to archive: " << writer->GetError());
return false;
}
return true;
}
bool CopyFileToArchive(IAaptContext* context, io::IFile* file, const std::string& out_path,
uint32_t compression_flags, IArchiveWriter* writer) {
TRACE_CALL();
std::unique_ptr<io::IData> data = file->OpenAsData();
if (!data) {
context->GetDiagnostics()->Error(DiagMessage(file->GetSource()) << "failed to open file");
return false;
}
return CopyInputStreamToArchive(context, data.get(), out_path, compression_flags, writer);
}
bool CopyFileToArchivePreserveCompression(IAaptContext* context, io::IFile* file,
const std::string& out_path, IArchiveWriter* writer) {
uint32_t compression_flags = file->WasCompressed() ? ArchiveEntry::kCompress : 0u;
return CopyFileToArchive(context, file, out_path, compression_flags, writer);
}
bool CopyProtoToArchive(IAaptContext* context, ::google::protobuf::MessageLite* proto_msg,
const std::string& out_path, uint32_t compression_flags,
IArchiveWriter* writer) {
TRACE_CALL();
if (context->IsVerbose()) {
context->GetDiagnostics()->Note(DiagMessage() << "writing " << out_path << " to archive");
}
if (writer->StartEntry(out_path, compression_flags)) {
// Make sure CopyingOutputStreamAdaptor is deleted before we call writer->FinishEntry().
{
// Wrap our IArchiveWriter with an adaptor that implements the ZeroCopyOutputStream interface.
::google::protobuf::io::CopyingOutputStreamAdaptor adaptor(writer);
if (!proto_msg->SerializeToZeroCopyStream(&adaptor)) {
context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path
<< " to archive");
return false;
}
}
if (writer->FinishEntry()) {
return true;
}
}
context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path
<< " to archive: " << writer->GetError());
return false;
}
bool Copy(OutputStream* out, InputStream* in) {
TRACE_CALL();
const void* in_buffer;
size_t in_len;
while (in->Next(&in_buffer, &in_len)) {
void* out_buffer;
size_t out_len;
if (!out->Next(&out_buffer, &out_len)) {
return !out->HadError();
}
const size_t bytes_to_copy = in_len < out_len ? in_len : out_len;
memcpy(out_buffer, in_buffer, bytes_to_copy);
out->BackUp(out_len - bytes_to_copy);
in->BackUp(in_len - bytes_to_copy);
}
return !in->HadError();
}
bool Copy(OutputStream* out, const StringPiece& in) {
const char* in_buffer = in.data();
size_t in_len = in.size();
while (in_len != 0) {
void* out_buffer;
size_t out_len;
if (!out->Next(&out_buffer, &out_len)) {
return false;
}
const size_t bytes_to_copy = in_len < out_len ? in_len : out_len;
memcpy(out_buffer, in_buffer, bytes_to_copy);
out->BackUp(out_len - bytes_to_copy);
in_buffer += bytes_to_copy;
in_len -= bytes_to_copy;
}
return true;
}
bool Copy(ZeroCopyOutputStream* out, InputStream* in) {
OutputStreamAdaptor adaptor(out);
return Copy(&adaptor, in);
}
} // namespace io
} // namespace aapt
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