Initial public release

BufferOutputStream.cpp

@@ -0,0 +1,84 @@
+//
+// libtgvoip is free and unencumbered public domain software.
+// For more information, see http://unlicense.org or the UNLICENSE file
+// you should have received with this source code distribution.
+//
+
+#include "BufferOutputStream.h"
+#include <string.h>
+
+CBufferOutputStream::CBufferOutputStream(size_t size){
+	buffer=(char*) malloc(size);
+	offset=0;
+	this->size=size;
+}
+
+CBufferOutputStream::~CBufferOutputStream(){
+	free(buffer);
+}
+
+void CBufferOutputStream::WriteByte(unsigned char byte){
+	this->ExpandBufferIfNeeded(1);
+	buffer[offset++]=byte;
+}
+
+void CBufferOutputStream::WriteInt32(int32_t i){
+	this->ExpandBufferIfNeeded(4);
+	buffer[offset+3]=(char)((i >> 24) & 0xFF);
+	buffer[offset+2]=(char)((i >> 16) & 0xFF);
+	buffer[offset+1]=(char)((i >> 8) & 0xFF);
+	buffer[offset]=(char)(i & 0xFF);
+	offset+=4;
+}
+
+void CBufferOutputStream::WriteInt64(int64_t i){
+	this->ExpandBufferIfNeeded(8);
+	buffer[offset+7]=(char)((i >> 56) & 0xFF);
+	buffer[offset+6]=(char)((i >> 48) & 0xFF);
+	buffer[offset+5]=(char)((i >> 40) & 0xFF);
+	buffer[offset+4]=(char)((i >> 32) & 0xFF);
+	buffer[offset+3]=(char)((i >> 24) & 0xFF);
+	buffer[offset+2]=(char)((i >> 16) & 0xFF);
+	buffer[offset+1]=(char)((i >> 8) & 0xFF);
+	buffer[offset]=(char)(i & 0xFF);
+	offset+=8;
+}
+
+void CBufferOutputStream::WriteInt16(int16_t i){
+	this->ExpandBufferIfNeeded(2);
+	buffer[offset+1]=(char)((i >> 8) & 0xFF);
+	buffer[offset]=(char)(i & 0xFF);
+	offset+=2;
+}
+
+void CBufferOutputStream::WriteBytes(char *bytes, size_t count){
+	this->ExpandBufferIfNeeded(count);
+	memcpy(buffer+offset, bytes, count);
+	offset+=count;
+}
+
+char *CBufferOutputStream::GetBuffer(){
+	return buffer;
+}
+
+size_t CBufferOutputStream::GetLength(){
+	return offset;
+}
+
+void CBufferOutputStream::ExpandBufferIfNeeded(size_t need){
+	if(offset+need>size){
+		if(need<1024){
+			buffer=(char *) realloc(buffer, size+1024);
+			size+=1024;
+		}else{
+			buffer=(char *) realloc(buffer, size+need);
+			size+=need;
+		}
+	}
+}
+
+
+void CBufferOutputStream::Reset(){
+	offset=0;
+}
+