| 290 | } |
| 291 | |
| 292 | int32_t ZipWriter::PrepareDeflate() { |
| 293 | CHECK(state_ == State::kWritingZip); |
| 294 | |
| 295 | // Initialize the z_stream for compression. |
| 296 | z_stream_ = std::unique_ptr<z_stream, void (*)(z_stream*)>(new z_stream(), DeleteZStream); |
| 297 | |
| 298 | #pragma GCC diagnostic push |
| 299 | #pragma GCC diagnostic ignored "-Wold-style-cast" |
| 300 | int zerr = deflateInit2(z_stream_.get(), Z_BEST_COMPRESSION, Z_DEFLATED, -MAX_WBITS, |
| 301 | DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY); |
| 302 | #pragma GCC diagnostic pop |
| 303 | |
| 304 | if (zerr != Z_OK) { |
| 305 | if (zerr == Z_VERSION_ERROR) { |
| 306 | //chensenhua ALOGE("Installed zlib is not compatible with linked version (%s)", ZLIB_VERSION); |
| 307 | return HandleError(kZlibError); |
| 308 | } else { |
| 309 | //chensenhuaALOGE("deflateInit2 failed (zerr=%d)", zerr); |
| 310 | return HandleError(kZlibError); |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | z_stream_->next_out = buffer_.data(); |
| 315 | z_stream_->avail_out = buffer_.size(); |
| 316 | return kNoError; |
| 317 | } |
| 318 | |
| 319 | int32_t ZipWriter::WriteBytes(const void* data, size_t len) { |
| 320 | if (state_ != State::kWritingEntry) { |