| /* |
| * 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. |
| */ |
| #define LOG_TAG "libprotoutil" |
| |
| #include <android/util/protobuf.h> |
| #include <android/util/ProtoOutputStream.h> |
| #include <cutils/log.h> |
| |
| namespace android { |
| namespace util { |
| |
| ProtoOutputStream::ProtoOutputStream() |
| :mBuffer(), |
| mCopyBegin(0), |
| mCompact(false), |
| mDepth(0), |
| mObjectId(0), |
| mExpectedObjectToken(0ULL) |
| { |
| } |
| |
| ProtoOutputStream::~ProtoOutputStream() |
| { |
| } |
| |
| |
| void |
| ProtoOutputStream::clear() |
| { |
| mBuffer.clear(); |
| mCopyBegin = 0; |
| mCompact = false; |
| mDepth = 0; |
| mObjectId = 0; |
| mExpectedObjectToken = 0ULL; |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, double val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_DOUBLE: writeDoubleImpl(id, (double)val); break; |
| case FIELD_TYPE_FLOAT: writeFloatImpl(id, (float)val); break; |
| case FIELD_TYPE_INT64: writeInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_UINT64: writeUint64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_INT32: writeInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_FIXED64: writeFixed64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_FIXED32: writeFixed32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_UINT32: writeUint32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_SFIXED32: writeSFixed32Impl(id, (int)val); break; |
| case FIELD_TYPE_SFIXED64: writeSFixed64Impl(id, (long long)val); break; |
| case FIELD_TYPE_SINT32: writeZigzagInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_SINT64: writeZigzagInt64Impl(id, (long long)val); break; |
| default: |
| ALOGW("Field type %d is not supported when writing double val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| return true; |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, float val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_DOUBLE: writeDoubleImpl(id, (double)val); break; |
| case FIELD_TYPE_FLOAT: writeFloatImpl(id, (float)val); break; |
| case FIELD_TYPE_INT64: writeInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_UINT64: writeUint64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_INT32: writeInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_FIXED64: writeFixed64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_FIXED32: writeFixed32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_UINT32: writeUint32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_SFIXED32: writeSFixed32Impl(id, (int)val); break; |
| case FIELD_TYPE_SFIXED64: writeSFixed64Impl(id, (long long)val); break; |
| case FIELD_TYPE_SINT32: writeZigzagInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_SINT64: writeZigzagInt64Impl(id, (long long)val); break; |
| default: |
| ALOGW("Field type %d is not supported when writing float val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| return true; |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, int val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_DOUBLE: writeDoubleImpl(id, (double)val); break; |
| case FIELD_TYPE_FLOAT: writeFloatImpl(id, (float)val); break; |
| case FIELD_TYPE_INT64: writeInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_UINT64: writeUint64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_INT32: writeInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_FIXED64: writeFixed64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_FIXED32: writeFixed32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_UINT32: writeUint32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_SFIXED32: writeSFixed32Impl(id, (int)val); break; |
| case FIELD_TYPE_SFIXED64: writeSFixed64Impl(id, (long long)val); break; |
| case FIELD_TYPE_SINT32: writeZigzagInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_SINT64: writeZigzagInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_ENUM: writeEnumImpl(id, (int)val); break; |
| case FIELD_TYPE_BOOL: writeBoolImpl(id, val != 0); break; |
| default: |
| ALOGW("Field type %d is not supported when writing int val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| return true; |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, long long val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_DOUBLE: writeDoubleImpl(id, (double)val); break; |
| case FIELD_TYPE_FLOAT: writeFloatImpl(id, (float)val); break; |
| case FIELD_TYPE_INT64: writeInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_UINT64: writeUint64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_INT32: writeInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_FIXED64: writeFixed64Impl(id, (uint64_t)val); break; |
| case FIELD_TYPE_FIXED32: writeFixed32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_UINT32: writeUint32Impl(id, (uint32_t)val); break; |
| case FIELD_TYPE_SFIXED32: writeSFixed32Impl(id, (int)val); break; |
| case FIELD_TYPE_SFIXED64: writeSFixed64Impl(id, (long long)val); break; |
| case FIELD_TYPE_SINT32: writeZigzagInt32Impl(id, (int)val); break; |
| case FIELD_TYPE_SINT64: writeZigzagInt64Impl(id, (long long)val); break; |
| case FIELD_TYPE_ENUM: writeEnumImpl(id, (int)val); break; |
| case FIELD_TYPE_BOOL: writeBoolImpl(id, val != 0); break; |
| default: |
| ALOGW("Field type %d is not supported when writing long long val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| return true; |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, bool val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_BOOL: |
| writeBoolImpl(id, val); |
| return true; |
| default: |
| ALOGW("Field type %d is not supported when writing bool val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, string val) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_STRING: |
| writeUtf8StringImpl(id, val.c_str(), val.size()); |
| return true; |
| default: |
| ALOGW("Field type %d is not supported when writing string val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| } |
| |
| bool |
| ProtoOutputStream::write(uint64_t fieldId, const char* val, size_t size) |
| { |
| if (mCompact) return false; |
| const uint32_t id = (uint32_t)fieldId; |
| switch (fieldId & FIELD_TYPE_MASK) { |
| case FIELD_TYPE_STRING: |
| case FIELD_TYPE_BYTES: |
| writeUtf8StringImpl(id, val, size); |
| return true; |
| case FIELD_TYPE_MESSAGE: |
| // can directly write valid format of message bytes into ProtoOutputStream without calling start/end |
| writeMessageBytesImpl(id, val, size); |
| return true; |
| default: |
| ALOGW("Field type %d is not supported when writing char[] val.", |
| (int)((fieldId & FIELD_TYPE_MASK) >> FIELD_TYPE_SHIFT)); |
| return false; |
| } |
| } |
| |
| /** |
| * Make a token. |
| * Bits 61-63 - tag size (So we can go backwards later if the object had not data) |
| * - 3 bits, max value 7, max value needed 5 |
| * Bit 60 - true if the object is repeated |
| * Bits 59-51 - depth (For error checking) |
| * - 9 bits, max value 512, when checking, value is masked (if we really |
| * are more than 512 levels deep) |
| * Bits 32-50 - objectId (For error checking) |
| * - 19 bits, max value 524,288. that's a lot of objects. IDs will wrap |
| * because of the overflow, and only the tokens are compared. |
| * Bits 0-31 - offset of the first size field in the buffer. |
| */ |
| uint64_t |
| makeToken(int tagSize, bool repeated, int depth, int objectId, int sizePos) { |
| return ((0x07L & (uint64_t)tagSize) << 61) |
| | (repeated ? (1LL << 60) : 0) |
| | (0x01ffL & (uint64_t)depth) << 51 |
| | (0x07ffffL & (uint64_t)objectId) << 32 |
| | (0x0ffffffffL & (uint64_t)sizePos); |
| } |
| |
| /** |
| * Get the encoded tag size from the token. |
| */ |
| static int getTagSizeFromToken(uint64_t token) { |
| return (int)(0x7 & (token >> 61)); |
| } |
| |
| /** |
| * Get the nesting depth of startObject calls from the token. |
| */ |
| static int getDepthFromToken(uint64_t token) { |
| return (int)(0x01ff & (token >> 51)); |
| } |
| |
| /** |
| * Get the location of the childRawSize (the first 32 bit size field) in this object. |
| */ |
| static int getSizePosFromToken(uint64_t token) { |
| return (int)token; |
| } |
| |
| uint64_t |
| ProtoOutputStream::start(uint64_t fieldId) |
| { |
| if ((fieldId & FIELD_TYPE_MASK) != FIELD_TYPE_MESSAGE) { |
| ALOGE("Can't call start for non-message type field: 0x%llx", (long long)fieldId); |
| return 0; |
| } |
| |
| uint32_t id = (uint32_t)fieldId; |
| size_t prevPos = mBuffer.wp()->pos(); |
| mBuffer.writeHeader(id, WIRE_TYPE_LENGTH_DELIMITED); |
| size_t sizePos = mBuffer.wp()->pos(); |
| |
| mDepth++; |
| mObjectId++; |
| mBuffer.writeRawFixed64(mExpectedObjectToken); // push previous token into stack. |
| |
| mExpectedObjectToken = makeToken(sizePos - prevPos, |
| (bool)(fieldId & FIELD_COUNT_REPEATED), mDepth, mObjectId, sizePos); |
| return mExpectedObjectToken; |
| } |
| |
| void |
| ProtoOutputStream::end(uint64_t token) |
| { |
| if (token != mExpectedObjectToken) { |
| ALOGE("Unexpected token: 0x%llx, should be 0x%llx", (long long)token, (long long)mExpectedObjectToken); |
| return; |
| } |
| |
| int depth = getDepthFromToken(token); |
| if (depth != (mDepth & 0x01ff)) { |
| ALOGE("Unexpected depth: %d, should be %d", depth, mDepth); |
| return; |
| } |
| mDepth--; |
| |
| int sizePos = getSizePosFromToken(token); |
| // number of bytes written in this start-end session. |
| int childRawSize = mBuffer.wp()->pos() - sizePos - 8; |
| |
| // retrieve the old token from stack. |
| mBuffer.ep()->rewind()->move(sizePos); |
| mExpectedObjectToken = mBuffer.readRawFixed64(); |
| |
| // If raw size is larger than 0, write the negative value here to indicate a compact is needed. |
| if (childRawSize > 0) { |
| mBuffer.editRawFixed32(sizePos, -childRawSize); |
| mBuffer.editRawFixed32(sizePos+4, -1); |
| } else { |
| // reset wp which erase the header tag of the message when its size is 0. |
| mBuffer.wp()->rewind()->move(sizePos - getTagSizeFromToken(token)); |
| } |
| } |
| |
| size_t |
| ProtoOutputStream::bytesWritten() |
| { |
| return mBuffer.size(); |
| } |
| |
| bool |
| ProtoOutputStream::compact() { |
| if (mCompact) return true; |
| if (mDepth != 0) { |
| ALOGE("Can't compact when depth(%d) is not zero. Missing calls to end.", mDepth); |
| return false; |
| } |
| // record the size of the original buffer. |
| size_t rawBufferSize = mBuffer.size(); |
| if (rawBufferSize == 0) return true; // nothing to do if the buffer is empty; |
| |
| // reset edit pointer and recursively compute encoded size of messages. |
| mBuffer.ep()->rewind(); |
| if (editEncodedSize(rawBufferSize) == 0) { |
| ALOGE("Failed to editEncodedSize."); |
| return false; |
| } |
| |
| // reset both edit pointer and write pointer, and compact recursively. |
| mBuffer.ep()->rewind(); |
| mBuffer.wp()->rewind(); |
| if (!compactSize(rawBufferSize)) { |
| ALOGE("Failed to compactSize."); |
| return false; |
| } |
| // copy the reset to the buffer. |
| if (mCopyBegin < rawBufferSize) { |
| mBuffer.copy(mCopyBegin, rawBufferSize - mCopyBegin); |
| } |
| |
| // mark true means it is not legal to write to this ProtoOutputStream anymore |
| mCompact = true; |
| return true; |
| } |
| |
| /** |
| * First compaction pass. Iterate through the data, and fill in the |
| * nested object sizes so the next pass can compact them. |
| */ |
| size_t |
| ProtoOutputStream::editEncodedSize(size_t rawSize) |
| { |
| size_t objectStart = mBuffer.ep()->pos(); |
| size_t objectEnd = objectStart + rawSize; |
| size_t encodedSize = 0; |
| int childRawSize, childEncodedSize; |
| size_t childEncodedSizePos; |
| |
| while (mBuffer.ep()->pos() < objectEnd) { |
| uint32_t tag = (uint32_t)mBuffer.readRawVarint(); |
| encodedSize += get_varint_size(tag); |
| switch (read_wire_type(tag)) { |
| case WIRE_TYPE_VARINT: |
| do { |
| encodedSize++; |
| } while ((mBuffer.readRawByte() & 0x80) != 0); |
| break; |
| case WIRE_TYPE_FIXED64: |
| encodedSize += 8; |
| mBuffer.ep()->move(8); |
| break; |
| case WIRE_TYPE_LENGTH_DELIMITED: |
| childRawSize = (int)mBuffer.readRawFixed32(); |
| childEncodedSizePos = mBuffer.ep()->pos(); |
| childEncodedSize = (int)mBuffer.readRawFixed32(); |
| if (childRawSize >= 0 && childRawSize == childEncodedSize) { |
| mBuffer.ep()->move(childRawSize); |
| } else if (childRawSize < 0 && childEncodedSize == -1){ |
| childEncodedSize = editEncodedSize(-childRawSize); |
| mBuffer.editRawFixed32(childEncodedSizePos, childEncodedSize); |
| } else { |
| ALOGE("Bad raw or encoded values: raw=%d, encoded=%d at %zu", |
| childRawSize, childEncodedSize, childEncodedSizePos); |
| return 0; |
| } |
| encodedSize += get_varint_size(childEncodedSize) + childEncodedSize; |
| break; |
| case WIRE_TYPE_FIXED32: |
| encodedSize += 4; |
| mBuffer.ep()->move(4); |
| break; |
| default: |
| ALOGE("Unexpected wire type %d in editEncodedSize at [%zu, %zu]", |
| read_wire_type(tag), objectStart, objectEnd); |
| return 0; |
| } |
| } |
| return encodedSize; |
| } |
| |
| /** |
| * Second compaction pass. Iterate through the data, and copy the data |
| * forward in the buffer, converting the pairs of uint32s into a single |
| * unsigned varint of the size. |
| */ |
| bool |
| ProtoOutputStream::compactSize(size_t rawSize) |
| { |
| size_t objectStart = mBuffer.ep()->pos(); |
| size_t objectEnd = objectStart + rawSize; |
| int childRawSize, childEncodedSize; |
| |
| while (mBuffer.ep()->pos() < objectEnd) { |
| uint32_t tag = (uint32_t)mBuffer.readRawVarint(); |
| switch (read_wire_type(tag)) { |
| case WIRE_TYPE_VARINT: |
| while ((mBuffer.readRawByte() & 0x80) != 0) {} |
| break; |
| case WIRE_TYPE_FIXED64: |
| mBuffer.ep()->move(8); |
| break; |
| case WIRE_TYPE_LENGTH_DELIMITED: |
| mBuffer.copy(mCopyBegin, mBuffer.ep()->pos() - mCopyBegin); |
| |
| childRawSize = (int)mBuffer.readRawFixed32(); |
| childEncodedSize = (int)mBuffer.readRawFixed32(); |
| mCopyBegin = mBuffer.ep()->pos(); |
| |
| // write encoded size to buffer. |
| mBuffer.writeRawVarint32(childEncodedSize); |
| if (childRawSize >= 0 && childRawSize == childEncodedSize) { |
| mBuffer.ep()->move(childEncodedSize); |
| } else if (childRawSize < 0){ |
| if (!compactSize(-childRawSize)) return false; |
| } else { |
| ALOGE("Bad raw or encoded values: raw=%d, encoded=%d", |
| childRawSize, childEncodedSize); |
| return false; |
| } |
| break; |
| case WIRE_TYPE_FIXED32: |
| mBuffer.ep()->move(4); |
| break; |
| default: |
| ALOGE("Unexpected wire type %d in compactSize at [%zu, %zu]", |
| read_wire_type(tag), objectStart, objectEnd); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| size_t |
| ProtoOutputStream::size() |
| { |
| compact(); |
| return mBuffer.size(); |
| } |
| |
| static bool write_all(int fd, uint8_t const* buf, size_t size) |
| { |
| while (size > 0) { |
| ssize_t amt = ::write(fd, buf, size); |
| if (amt < 0) { |
| return false; |
| } |
| size -= amt; |
| buf += amt; |
| } |
| return true; |
| } |
| |
| bool |
| ProtoOutputStream::flush(int fd) |
| { |
| if (fd < 0) return false; |
| if (!compact()) return false; |
| |
| EncodedBuffer::iterator it = mBuffer.begin(); |
| while (it.readBuffer() != NULL) { |
| if (!write_all(fd, it.readBuffer(), it.currentToRead())) return false; |
| it.rp()->move(it.currentToRead()); |
| } |
| return true; |
| } |
| |
| EncodedBuffer::iterator |
| ProtoOutputStream::data() |
| { |
| compact(); |
| return mBuffer.begin(); |
| } |
| |
| void |
| ProtoOutputStream::writeRawVarint(uint64_t varint) |
| { |
| mBuffer.writeRawVarint64(varint); |
| } |
| |
| void |
| ProtoOutputStream::writeLengthDelimitedHeader(uint32_t id, size_t size) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_LENGTH_DELIMITED); |
| // reserves 64 bits for length delimited fields, if first field is negative, compact it. |
| mBuffer.writeRawFixed32(size); |
| mBuffer.writeRawFixed32(size); |
| } |
| |
| void |
| ProtoOutputStream::writeRawByte(uint8_t byte) |
| { |
| mBuffer.writeRawByte(byte); |
| } |
| |
| |
| // ========================================================================= |
| // Private functions |
| |
| /** |
| * bit_cast |
| */ |
| template <class From, class To> |
| inline To bit_cast(From const &from) { |
| To to; |
| memcpy(&to, &from, sizeof(to)); |
| return to; |
| } |
| |
| inline void |
| ProtoOutputStream::writeDoubleImpl(uint32_t id, double val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED64); |
| mBuffer.writeRawFixed64(bit_cast<double, uint64_t>(val)); |
| } |
| |
| inline void |
| ProtoOutputStream::writeFloatImpl(uint32_t id, float val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED32); |
| mBuffer.writeRawFixed32(bit_cast<float, uint32_t>(val)); |
| } |
| |
| inline void |
| ProtoOutputStream::writeInt64Impl(uint32_t id, long long val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint64((uint64_t)val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeInt32Impl(uint32_t id, int val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint32((uint32_t)val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeUint64Impl(uint32_t id, uint64_t val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint64(val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeUint32Impl(uint32_t id, uint32_t val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint32(val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeFixed64Impl(uint32_t id, uint64_t val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED64); |
| mBuffer.writeRawFixed64(val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeFixed32Impl(uint32_t id, uint32_t val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED32); |
| mBuffer.writeRawFixed32(val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeSFixed64Impl(uint32_t id, long long val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED64); |
| mBuffer.writeRawFixed64((uint64_t)val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeSFixed32Impl(uint32_t id, int val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_FIXED32); |
| mBuffer.writeRawFixed32((uint32_t)val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeZigzagInt64Impl(uint32_t id, long long val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint64((val << 1) ^ (val >> 63)); |
| } |
| |
| inline void |
| ProtoOutputStream::writeZigzagInt32Impl(uint32_t id, int val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint32((val << 1) ^ (val >> 31)); |
| } |
| |
| inline void |
| ProtoOutputStream::writeEnumImpl(uint32_t id, int val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint32((uint32_t) val); |
| } |
| |
| inline void |
| ProtoOutputStream::writeBoolImpl(uint32_t id, bool val) |
| { |
| mBuffer.writeHeader(id, WIRE_TYPE_VARINT); |
| mBuffer.writeRawVarint32(val ? 1 : 0); |
| } |
| |
| inline void |
| ProtoOutputStream::writeUtf8StringImpl(uint32_t id, const char* val, size_t size) |
| { |
| if (val == NULL) return; |
| writeLengthDelimitedHeader(id, size); |
| for (size_t i=0; i<size; i++) { |
| mBuffer.writeRawByte((uint8_t)val[i]); |
| } |
| } |
| |
| inline void |
| ProtoOutputStream::writeMessageBytesImpl(uint32_t id, const char* val, size_t size) |
| { |
| if (val == NULL) return; |
| writeLengthDelimitedHeader(id, size); |
| for (size_t i=0; i<size; i++) { |
| mBuffer.writeRawByte(val[i]); |
| } |
| } |
| |
| } // util |
| } // android |
| |