Error Writer::write() {
size_t TotalSize = finalize();
- std::unique_ptr<WritableMemoryBuffer> Buf =
- WritableMemoryBuffer::getNewMemBuffer(TotalSize);
- if (!Buf)
- return createStringError(errc::not_enough_memory,
- "failed to allocate memory buffer of " +
- Twine::utohexstr(TotalSize) + " bytes");
+ Out.reserveExtraSpace(TotalSize);
// Write the header.
- uint8_t *Ptr = reinterpret_cast<uint8_t *>(Buf->getBufferStart());
- Ptr = std::copy(Obj.Header.Magic.begin(), Obj.Header.Magic.end(), Ptr);
- support::endian::write32le(Ptr, Obj.Header.Version);
- Ptr += sizeof(Obj.Header.Version);
+ Out.write(Obj.Header.Magic.data(), Obj.Header.Magic.size());
+ uint32_t Version;
+ support::endian::write32le(&Version, Obj.Header.Version);
+ Out.write(reinterpret_cast<const char *>(&Version), sizeof(Version));
// Write each section.
for (size_t I = 0, S = SectionHeaders.size(); I < S; ++I) {
- Ptr = std::copy(SectionHeaders[I].begin(), SectionHeaders[I].end(), Ptr);
- ArrayRef<uint8_t> Contents = Obj.Sections[I].Contents;
- Ptr = std::copy(Contents.begin(), Contents.end(), Ptr);
+ Out.write(SectionHeaders[I].data(), SectionHeaders[I].size());
+ Out.write(reinterpret_cast<const char *>(Obj.Sections[I].Contents.data()),
+ Obj.Sections[I].Contents.size());
}
- // TODO: Implement direct writing to the output stream (without intermediate
- // memory buffer Buf).
- Out.write(Buf->getBufferStart(), Buf->getBufferSize());
return Error::success();
}