1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "io/Util.h" 18 19 #include "google/protobuf/io/zero_copy_stream_impl_lite.h" 20 21 namespace aapt { 22 namespace io { 23 24 bool CopyInputStreamToArchive(IAaptContext* context, InputStream* in, const std::string& out_path, 25 uint32_t compression_flags, IArchiveWriter* writer) { 26 if (context->IsVerbose()) { 27 context->GetDiagnostics()->Note(DiagMessage() << "writing " << out_path << " to archive"); 28 } 29 30 if (!writer->WriteFile(out_path, compression_flags, in)) { 31 context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path 32 << " to archive: " << writer->GetError()); 33 return false; 34 } 35 return true; 36 } 37 38 bool CopyFileToArchive(IAaptContext* context, io::IFile* file, const std::string& out_path, 39 uint32_t compression_flags, IArchiveWriter* writer) { 40 std::unique_ptr<io::IData> data = file->OpenAsData(); 41 if (!data) { 42 context->GetDiagnostics()->Error(DiagMessage(file->GetSource()) << "failed to open file"); 43 return false; 44 } 45 return CopyInputStreamToArchive(context, data.get(), out_path, compression_flags, writer); 46 } 47 48 bool CopyProtoToArchive(IAaptContext* context, ::google::protobuf::MessageLite* proto_msg, 49 const std::string& out_path, uint32_t compression_flags, 50 IArchiveWriter* writer) { 51 if (context->IsVerbose()) { 52 context->GetDiagnostics()->Note(DiagMessage() << "writing " << out_path << " to archive"); 53 } 54 55 if (writer->StartEntry(out_path, compression_flags)) { 56 // Make sure CopyingOutputStreamAdaptor is deleted before we call writer->FinishEntry(). 57 { 58 // Wrap our IArchiveWriter with an adaptor that implements the ZeroCopyOutputStream interface. 59 ::google::protobuf::io::CopyingOutputStreamAdaptor adaptor(writer); 60 if (!proto_msg->SerializeToZeroCopyStream(&adaptor)) { 61 context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path 62 << " to archive"); 63 return false; 64 } 65 } 66 67 if (writer->FinishEntry()) { 68 return true; 69 } 70 } 71 context->GetDiagnostics()->Error(DiagMessage() << "failed to write " << out_path 72 << " to archive: " << writer->GetError()); 73 return false; 74 } 75 76 bool Copy(OutputStream* out, InputStream* in) { 77 const void* in_buffer; 78 size_t in_len; 79 while (in->Next(&in_buffer, &in_len)) { 80 void* out_buffer; 81 size_t out_len; 82 if (!out->Next(&out_buffer, &out_len)) { 83 return !out->HadError(); 84 } 85 86 const size_t bytes_to_copy = in_len < out_len ? in_len : out_len; 87 memcpy(out_buffer, in_buffer, bytes_to_copy); 88 out->BackUp(out_len - bytes_to_copy); 89 in->BackUp(in_len - bytes_to_copy); 90 } 91 return !in->HadError(); 92 } 93 94 } // namespace io 95 } // namespace aapt 96
