Nagram/TMessagesProj/jni/tgnet/ByteStream.cpp
2018-07-30 09:07:02 +07:00

84 lines
1.9 KiB
C++

/*
* This is the source code of tgnet library v. 1.1
* It is licensed under GNU GPL v. 2 or later.
* You should have received a copy of the license in this archive (see LICENSE).
*
* Copyright Nikolai Kudashov, 2015-2018.
*/
#include "ByteStream.h"
#include "NativeByteBuffer.h"
ByteStream::ByteStream() {
}
ByteStream::~ByteStream() {
}
void ByteStream::append(NativeByteBuffer *buffer) {
if (buffer == nullptr) {
return;
}
buffersQueue.push_back(buffer);
}
bool ByteStream::hasData() {
size_t size = buffersQueue.size();
for (uint32_t a = 0; a < size; a++) {
if (buffersQueue[a]->hasRemaining()) {
return true;
}
}
return false;
}
void ByteStream::get(NativeByteBuffer *dst) {
if (dst == nullptr) {
return;
}
size_t size = buffersQueue.size();
NativeByteBuffer *buffer;
for (uint32_t a = 0; a < size; a++) {
buffer = buffersQueue[a];
if (buffer->remaining() > dst->remaining()) {
dst->writeBytes(buffer->bytes(), buffer->position(), dst->remaining());
break;
}
dst->writeBytes(buffer->bytes(), buffer->position(), buffer->remaining());
if (!dst->hasRemaining()) {
break;
}
}
}
void ByteStream::discard(uint32_t count) {
uint32_t remaining;
NativeByteBuffer *buffer;
while (count > 0) {
buffer = buffersQueue[0];
remaining = buffer->remaining();
if (count < remaining) {
buffer->position(buffer->position() + count);
break;
}
buffer->reuse();
buffersQueue.erase(buffersQueue.begin());
count -= remaining;
}
}
void ByteStream::clean() {
if (buffersQueue.empty()) {
return;
}
size_t size = buffersQueue.size();
for (uint32_t a = 0; a < size; a++) {
NativeByteBuffer *buffer = buffersQueue[a];
buffer->reuse();
}
buffersQueue.clear();
}