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#ifndef __JIN_LUA_NET_NETBUFFER_H
#define __JIN_LUA_NET_NETBUFFER_H
#include <cstring>
#include <cstdlib>
#include "common/l_common.h"
namespace JinEngine
{
namespace Lua
{
extern const char* Jin_Lua_Buffer;
void luaopen_Buffer(lua_State* L);
namespace Net
{
class Buffer : public Object
{
public:
Buffer(size_t s = 0)
: size(s)
{
buffer = new char[size];
memset(buffer, 0, size);
}
Buffer(const char* data, size_t s)
: size(s)
{
buffer = new char[size];
memcpy(buffer, data, size);
}
~Buffer()
{
if (buffer != nullptr)
{
delete[] buffer;
buffer = nullptr;
size = 0;
}
}
void append(const void* data, size_t s)
{
if (data == nullptr)
return;
char* buf = buffer;
buffer = new char[size + s];
memcpy(buffer, buf, size);
memcpy(buffer + size, data, s);
delete[] buf;
size += s;
return;
}
/* grab and create a string */
char* grabString(unsigned int* length, int offset = 0)
{
int l = offset;
for (; l < size; ++l)
{
if (buffer[l] == 0)
break;
}
*length = l - offset + 1;
char* str = (char*)malloc(*length);
memcpy(str, buffer + offset, *length);
return str;
}
int grabInteger(int* length, int offset = 0)
{
*length = sizeof(int);
return *((int*)(buffer + offset));
}
float grabFloat(int* length, int offset = 0)
{
*length = sizeof(float);
return *((float*)(buffer + offset));
}
bool grabBoolean(int* length, int offset = 0)
{
*length = sizeof(bool);
return *((bool*)(buffer + offset));
}
char* buffer;
size_t size;
};
} // namespace Net
} // namespace Lua
} // namespace JinEngine
#endif
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