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Copy pathLuaPlus_Libs.cpp
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379 lines (316 loc) · 8.39 KB
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///////////////////////////////////////////////////////////////////////////////
// This source file is part of the LuaPlus source distribution and is Copyright
// 2001-2010 by Joshua C. Jensen (jjensen@workspacewhiz.com).
//
// The latest version may be obtained from http://luaplus.org/.
//
// The code presented in this file may be used in any environment it is
// acceptable to use Lua.
///////////////////////////////////////////////////////////////////////////////
#ifndef BUILDING_LUAPLUS
#define BUILDING_LUAPLUS
#endif
#include "LuaLink.h"
LUA_EXTERN_C_BEGIN
#include "src/lobject.h"
#include "src/lgc.h"
LUA_EXTERN_C_END
#include "LuaPlus.h"
#include "LuaState.h"
#include <string.h>
#ifdef WIN32
#if defined(WIN32) && !defined(_XBOX) && !defined(_XBOX_VER) && !defined(_WIN32_WCE)
#include <windows.h>
#elif defined(_XBOX) || defined(_XBOX_VER)
#include <xtl.h>
#endif // WIN32
#undef GetObject
#endif // WIN32
#if defined(__GNUC__)
#include <new>
#else
#include <new.h>
#endif
#include <stdlib.h>
#include <wchar.h>
#include <assert.h>
#ifdef _MSC_VER
#pragma warning(disable: 4100)
#endif // _MSC_VER
//-----------------------------------------------------------------------------
LUA_EXTERN_C_BEGIN
#include "src/lualib.h"
#include "src/lstate.h"
LUA_EXTERN_C_END
namespace LuaPlus {
class LuaStateOutString : public LuaStateOutFile
{
public:
LuaStateOutString(size_t growBy = 10000) :
m_buffer(NULL),
m_growBy(growBy),
m_curPos(0),
m_size(0)
{
}
virtual ~LuaStateOutString()
{
free(m_buffer);
}
virtual void Print(const char* str, ...)
{
char message[ 800 ];
va_list arglist;
va_start( arglist, str );
vsprintf( message, str, arglist );
va_end( arglist );
size_t len = strlen(message);
if (len != 0)
{
if (m_curPos + len + 1 > m_size)
{
size_t newSize = m_size;
while (newSize < m_curPos + len + 1)
newSize += m_growBy;
m_buffer = (char*)realloc(m_buffer, newSize);
m_size = newSize;
}
strncpy(m_buffer + m_curPos, message, len);
m_curPos += len;
m_buffer[m_curPos] = 0;
}
}
const char* GetBuffer() const
{
return m_buffer;
}
protected:
char* m_buffer;
size_t m_growBy;
size_t m_curPos;
size_t m_size;
};
#if 0
NOT AS FAST, BUT BETTER MEMORY MANAGEMENT.
class LuaStateOutString : public LuaStateOutFile
{
public:
LuaStateOutString(size_t growBy = 10000)
: m_tail(&m_head)
, m_bufferDirty(true)
, m_buffer(NULL)
, m_bufferSize(0)
{
m_head.next = NULL;
}
virtual ~LuaStateOutString()
{
delete[] m_buffer;
LineNode* node = m_head.next;
while (node)
{
LineNode* oldNode = node;
node = node->next;
delete[] (unsigned char*)oldNode;
}
}
virtual void Print(const char* str, ...)
{
char message[ 800 ];
va_list arglist;
va_start( arglist, str );
vsprintf( message, str, arglist );
va_end( arglist );
size_t len = strlen(message);
if (len != 0)
{
LineNode* newNode = (LineNode*)new unsigned char[sizeof(LineNode) + len]; // Already includes the +1 for \0
newNode->next = NULL;
m_tail->next = newNode;
m_tail = newNode;
newNode->len = len;
strncpy(newNode->line, message, len);
newNode->line[len] = 0;
m_bufferSize += len;
m_bufferDirty = true;
}
}
const char* GetBuffer()
{
if (m_bufferDirty)
{
delete[] m_buffer;
m_buffer = new char[m_bufferSize + 1];
char* bufferPos = m_buffer;
for (LineNode* node = m_head.next; node; node = node->next)
{
memcpy(bufferPos, node->line, node->len);
bufferPos += node->len;
}
*bufferPos = 0;
}
return m_buffer;
}
protected:
struct LineNode
{
LineNode* next;
size_t len;
char line[1];
};
LineNode m_head;
LineNode* m_tail;
bool m_bufferDirty;
char* m_buffer;
size_t m_bufferSize;
};
#endif
} // namespace LuaPlus
#if LUAPLUS_DUMPOBJECT
LUA_EXTERN_C void luaplus_dumptable(lua_State* L, int index)
{
LuaPlus::LuaState* state = lua_State_To_LuaState(L);
LuaPlus::LuaObject valueObj(state, index);
LuaPlus::LuaStateOutString stringFile;
state->DumpObject(stringFile, NULL, valueObj, LuaPlus::LuaState::DUMP_ALPHABETICAL | LuaPlus::LuaState::DUMP_WRITEALL, 0, -1);
state->PushString(stringFile.GetBuffer());
}
#endif // LUAPLUS_DUMPOBJECT
namespace LuaPlus {
/*static*/ LuaState* LuaState::Create(bool initStandardLibrary)
{
LuaState* state = LuaState::Create();
if (initStandardLibrary)
state->OpenLibs();
return state;
}
#if LUAPLUS_EXTENSIONS
LuaObject LuaState::CreateThread(LuaState* parentState)
{
lua_State* L1 = lua_newthread(LuaState_to_lua_State(parentState));
lua_TValue tobject;
#if LUA_REFCOUNT
setnilvalue2n(L1, &tobject);
#else
setnilvalue(&tobject);
#endif /* LUA_REFCOUNT */
setthvalue(parentState->GetCState(), &tobject, L1);
LuaObject retObj = LuaObject(lua_State_To_LuaState(L1), &tobject);
setnilvalue(&tobject);
lua_pop(LuaState_to_lua_State(parentState), 1);
return retObj;
}
#endif // LUAPLUS_EXTENSIONS
static int pmain (lua_State *L)
{
luaL_openlibs(L);
return 0;
}
/**
**/
void LuaState::OpenLibs()
{
#if LUAPLUS_INCLUDE_STANDARD_LIBRARY
LuaAutoBlock autoBlock(this);
lua_cpcall(LuaState_to_lua_State(this), &pmain, NULL);
#endif // LUAPLUS_INCLUDE_STANDARD_LIBRARY
}
} // namespace LuaPlus
#if LUAPLUS_DUMPOBJECT
using namespace LuaPlus;
// LuaDumpObject(file, key, value, alphabetical, indentLevel, maxIndentLevel, writeAll)
extern "C" int LS_LuaDumpObject( lua_State* L )
{
LuaStateOutFile file;
LuaState* state = lua_State_To_LuaState(L);
LuaStack args(state);
LuaStackObject fileObj = args[1];
if (fileObj.IsTable() && state->GetTop() == 1)
{
LuaObject valueObj(fileObj);
LuaObject nameObj;
LuaStateOutString stringFile;
state->DumpObject(stringFile, NULL, valueObj, LuaState::DUMP_ALPHABETICAL, 0, -1);
state->PushString(stringFile.GetBuffer());
return 1;
}
const char* fileName = NULL;
if ( fileObj.IsUserData() )
{
FILE* stdioFile = (FILE *)fileObj.GetUserData();
file.Assign( stdioFile );
}
else if ( fileObj.IsString() )
{
fileName = fileObj.GetString();
}
LuaObject nameObj = args[2];
LuaObject valueObj = args[3];
LuaStackObject alphabeticalObj = args[4];
LuaStackObject indentLevelObj = args[5];
LuaStackObject maxIndentLevelObj = args[6];
LuaStackObject writeAllObj = args[7];
bool writeAll = writeAllObj.IsBoolean() ? writeAllObj.GetBoolean() : false;
bool alphabetical = alphabeticalObj.IsBoolean() ? alphabeticalObj.GetBoolean() : true;
unsigned int maxIndentLevel = maxIndentLevelObj.IsInteger() ? (unsigned int)maxIndentLevelObj.GetInteger() : 0xFFFFFFFF;
unsigned int flags = (alphabetical ? LuaState::DUMP_ALPHABETICAL : 0) | (writeAll ? LuaState::DUMP_WRITEALL : 0);
if (fileName)
{
if (strcmp(fileName, ":string") == 0)
{
LuaStateOutString stringFile;
state->DumpObject(stringFile, nameObj, valueObj, flags, indentLevelObj.GetInteger(), maxIndentLevel);
state->PushString(stringFile.GetBuffer());
return 1;
}
else
{
state->DumpObject(fileName, nameObj, valueObj, flags, (unsigned int)indentLevelObj.GetInteger(), maxIndentLevel);
}
}
else
{
state->DumpObject(file, nameObj, valueObj, flags, (unsigned int)indentLevelObj.GetInteger(), maxIndentLevel);
}
return 0;
}
// LuaDumpFile(file, key, value, alphabetical, indentLevel, maxIndentLevel, writeAll)
extern "C" int LS_LuaDumpFile( lua_State* L )
{
return LS_LuaDumpObject(L);
}
// LuaDumpGlobals(file, alphabetical, maxIndentLevel, writeAll)
extern "C" int LS_LuaDumpGlobals(lua_State* L)
{
LuaStateOutFile file;
LuaState* state = lua_State_To_LuaState(L);
LuaStack args(state);
LuaStackObject fileObj = args[1];
const char* fileName = NULL;
if ( fileObj.IsUserData() )
{
FILE* stdioFile = (FILE *)fileObj.GetUserData();
file.Assign( stdioFile );
}
else if ( fileObj.IsString() )
{
fileName = fileObj.GetString();
}
LuaStackObject alphabeticalObj = args[2];
LuaStackObject maxIndentLevelObj = args[3];
LuaStackObject writeAllObj = args[4];
bool alphabetical = alphabeticalObj.IsBoolean() ? alphabeticalObj.GetBoolean() : true;
unsigned int maxIndentLevel = maxIndentLevelObj.IsInteger() ? (unsigned int)maxIndentLevelObj.GetInteger() : 0xFFFFFFFF;
bool writeAll = writeAllObj.IsBoolean() ? writeAllObj.GetBoolean() : false;
unsigned int flags = (alphabetical ? LuaState::DUMP_ALPHABETICAL : 0) | (writeAll ? LuaState::DUMP_WRITEALL : 0);
if (fileName)
{
state->DumpGlobals(fileName, flags, maxIndentLevel);
}
else
{
state->DumpGlobals(file, flags, maxIndentLevel);
}
return 0;
}
#endif // LUAPLUS_DUMPOBJECT
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