class EpsCopyOutputStream

Defined at line 642 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

EpsCopyOutputStream wraps a ZeroCopyOutputStream and exposes a new stream,

which has the property you can write kSlopBytes (16 bytes) from the current

position without bounds checks. The cursor into the stream is managed by

the user of the class and is an explicit parameter in the methods. Careful

use of this class, ie. keep ptr a local variable, eliminates the need to

for the compiler to sync the ptr value between register and memory.

Public Methods

void EnableAliasing (bool enabled)

Instructs the EpsCopyOutputStream to allow the underlying

ZeroCopyOutputStream to hold pointers to the original structure instead of

copying, if it supports it (i.e. output->AllowsAliasing() is true). If the

underlying stream does not support aliasing, then enabling it has no

affect. For now, this only affects the behavior of

WriteRawMaybeAliased().

NOTE: It is caller's responsibility to ensure that the chunk of memory

remains live until all of the data has been consumed from the stream.

int64_t ByteCount (uint8_t * ptr)

The number of bytes written to the stream at position ptr, relative to the

stream's overall position.

void EpsCopyOutputStream (ZeroCopyOutputStream * stream, bool deterministic, uint8_t ** pp)

Initialize from a stream.

Defined at line 648 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

void EpsCopyOutputStream (void * data, int size, bool deterministic)

Only for array serialization. No overflow protection, end_ will be the

pointed to the end of the array. When using this the total size is already

known, so no need to maintain the slop region.

Defined at line 659 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

void EpsCopyOutputStream (void * data, int size, ZeroCopyOutputStream * stream, bool deterministic, uint8_t ** pp)

Initialize from stream but with the first buffer already given (eager).

Defined at line 666 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * EnsureSpace (uint8_t * ptr)

After this it's guaranteed you can safely write kSlopBytes to ptr. This

will never fail! The underlying stream can produce an error. Use HadError

to check for errors.

Defined at line 679 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

size_t BytesAvailable (uint8_t * ptr)

Returns the number of bytes available to write to the stream.

Defined at line 687 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * Trim (uint8_t * ptr)

Flush everything that's written into the underlying ZeroCopyOutputStream

and trims the underlying stream to the location of ptr.

uint8_t * WriteRaw (const void * data, int size, uint8_t * ptr)

Defined at line 691 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * WriteBytesMaybeAliased (uint32_t num, absl::string_view s, uint8_t * ptr)

Defined at line 735 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * WriteCord (const absl::Cord & cord, uint8_t * ptr)

uint8_t * WriteRawMaybeAliased (const void * data, int size, uint8_t * ptr)

Defined at line 704 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * WriteStringMaybeAliased (uint32_t num, absl::string_view s, uint8_t * ptr)

Defined at line 719 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteString (uint32_t num, const T & s, uint8_t * ptr)

Defined at line 741 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * WriteString (uint32_t num, const absl::Cord & s, uint8_t * ptr)

Defined at line 754 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteBytes (uint32_t num, const T & s, uint8_t * ptr)

Defined at line 763 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteInt32Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 772 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteUInt32Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 777 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteSInt32Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 782 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteInt64Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 787 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteUInt64Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 792 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteSInt64Packed (int num, const T & r, int size, uint8_t * ptr)

Defined at line 797 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteEnumPacked (int num, const T & r, int size, uint8_t * ptr)

Defined at line 802 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <typename T>

uint8_t * WriteFixedPacked (int num, const T & r, uint8_t * ptr)

Defined at line 808 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

template <int kElementSize>

uint8_t * WriteRawNumericArrayLittleEndian (const void * data, int size, uint8_t * ptr)

Defined at line 819 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

bool HadError ()

Returns true if there was an underlying I/O error since this object was

created.

Defined at line 826 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

void SetSerializationDeterministic (bool value)

See documentation on CodedOutputStream::SetSerializationDeterministic.

Defined at line 842 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

bool IsSerializationDeterministic ()

See documentation on CodedOutputStream::IsSerializationDeterministic.

Defined at line 847 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

uint8_t * SetInitialBuffer (void * data, int size)

These methods are for CodedOutputStream. Ideally they should be private

but to match current behavior of CodedOutputStream as close as possible

we allow it some functionality.

Defined at line 972 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

Enumerations

enum (unnamed)

Name	Value
kSlopBytes	16

Defined at line 645 of file ../../third_party/protobuf/src/src/google/protobuf/io/coded_stream.h

Friends

class CodedOutputStream