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#include "lua/luax.h"
#include "../luaopen_types.h"
#include "libjin/jin.h"
namespace jin
{
namespace lua
{
namespace net
{
class Buffer
{
public:
Buffer(size_t size);
Buffer(const char* data, size_t size);
~Buffer()
{
}
void append(char* data, size_t size)
{
}
const char* grabString(int offset = 0)
{
int l = offset;
for (; l < size; ++l)
{
if (buffer[l] == 0)
{
}
}
return nullptr;
}
int grabInteger(int offset = 0)
{
}
float grabfloat(int offset = 0)
{
}
bool grabboolean(int offset = 0)
{
}
private:
char* buffer;
size_t size;
};
static int l_buffer(lua_State* L)
{
int size = luax_checkinteger(L, 1);
char* buffer = (char*)malloc(size);
memset(buffer, 0, size);
luax_pushlstring(L, buffer, size);
return 1;
}
// return buffer, size
static int l_write(lua_State* L)
{
const char* data = luax_checklstring(L, 1, NULL);
int len = luax_checkinteger(L, 2);
if (luax_isinteger(L, 3))
{
int n = luax_checkinteger(L, 3);
int size = len + sizeof(n);
char* buffer = (char*)malloc(size);
memcpy(buffer, data, len);
memcpy(buffer + len, &n, sizeof(n));
//free((void*)data);
luax_pushlstring(L, buffer, size);
luax_pushinteger(L, size);
return 2;
}
else if (luax_isfloat(L, 3))
{
float n = luax_checknumber(L, 3);
int size = len + sizeof(n);
char* buffer = (char*)malloc(size);
memcpy(buffer, data, len);
memcpy(buffer + len, &n, sizeof(n));
//free((void*)data);
luax_pushlstring(L, buffer, size);
luax_pushinteger(L, size);
return 2;
}
else if (luax_isboolean(L, 3))
{
bool b = luax_checkbool(L, 3);
int size = len + sizeof(b);
char* buffer = (char*)malloc(size);
memcpy(buffer, data, len);
memcpy(buffer + len, &b, sizeof(b));
//free((void*)data);
luax_pushlstring(L, buffer, size);
luax_pushinteger(L, size);
return 2;
}
else if (luax_isstring(L, 3))
{
const char* s = luax_checkstring(L, 3);
int l = strlen(s) + 1; // with \0
int size = len + l;
char* buffer = (char*)malloc(size);
memcpy(buffer, data, len);
memcpy(buffer + len, s, l);
luax_pushlstring(L, buffer, size);
luax_pushinteger(L, size);
return 2;
}
else
{
luax_typerror(L, 3, "number, bool or string");
return 0;
}
}
// jin.shift(buffer, shift)
static int l_shift(lua_State* L)
{
const char* buffer = luax_checklstring(L, 1, NULL);
int size = luax_checkinteger(L, 2);
int shift = luax_checkinteger(L, 3);
int ss = size - shift;
luax_pushlstring(L, buffer + shift, ss);
luax_pushinteger(L, ss);
return 2;
}
// jin.bit.grabstring(buffer, size)
static int l_grabstring(lua_State* L)
{
const char* buffer = luax_checklstring(L, 1, NULL);
int size = luax_checkinteger(L, 2);
int l = 0;
for (; l < size; ++l)
{
if (buffer[l] == 0)
{
int len = l + 1;
char* str = (char*)malloc(len);
memcpy(str, buffer, len);
luax_pushstring(L, str);
luax_pushinteger(L, l);
return 2;
}
}
return 0;
}
static int l_grabinteger(lua_State* L)
{
const char* buffer = luax_checklstring(L, 1, NULL);
int size = luax_checkinteger(L, 2);
int n = *((int*)buffer);
luax_pushinteger(L, n);
return 1;
}
static int l_grabfloat(lua_State* L)
{
const char* buffer = luax_checklstring(L, 1, NULL);
int size = luax_checkinteger(L, 2);
float n = *((float*)buffer);
luax_pushnumber(L, n);
return 1;
}
static int l_grabboolean(lua_State* L)
{
const char* buffer = luax_checklstring(L, 1, NULL);
int size = luax_checkinteger(L, 2);
bool n = *((bool*)buffer);
luax_pushboolean(L, n);
return 1;
}
} // net
} // lua
} // jin
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