// Globals.h
// This file gets included from every module in the project, so that global symbols may be introduced easily
// Also used for precompiled header generation in MSVC environments
// Compiler-dependent stuff:
#if defined(_MSC_VER)
// Disable some warnings that we don't care about:
#pragma warning(disable:4100) // Unreferenced formal parameter
// Useful warnings from warning level 4:
#pragma warning(3 : 4189) // Local variable is initialized but not referenced
#pragma warning(3 : 4245) // Conversion from 'type1' to 'type2', signed / unsigned mismatch
#pragma warning(3 : 4310) // Cast truncates constant value
#pragma warning(3 : 4389) // Signed / unsigned mismatch
#pragma warning(3 : 4505) // Unreferenced local function has been removed
#pragma warning(3 : 4701) // Potentially unitialized local variable used
#pragma warning(3 : 4702) // Unreachable code
#pragma warning(3 : 4706) // Assignment within conditional expression
// 2014-10-23 xoft: Disabled this because the new C++11 headers in MSVC produce tons of these warnings uselessly
// #pragma warning(3 : 4127) // Conditional expression is constant
// Disabling this warning, because we know what we're doing when we're doing this:
#pragma warning(disable: 4355) // 'this' used in initializer list
// Disabled because it's useless:
#pragma warning(disable: 4512) // 'class': assignment operator could not be generated - reported for each class that has a reference-type member
#pragma warning(disable: 4351) // new behavior: elements of array 'member' will be default initialized
// 2014_01_06 xoft: Disabled this warning because MSVC is stupid and reports it in obviously wrong places
// #pragma warning(3 : 4244) // Conversion from 'type1' to 'type2', possible loss of data
#define OBSOLETE __declspec(deprecated)
#define NORETURN __declspec(noreturn)
#if (_MSC_VER < 1900) // noexcept support was added in VS 2015
#define NOEXCEPT throw()
#define CAN_THROW throw(...)
#else
#define NOEXCEPT noexcept
#define CAN_THROW noexcept(false)
#endif
// Use non-standard defines in <cmath>
#define _USE_MATH_DEFINES
#ifdef _DEBUG
// Override the "new" operator to include file and line specification for debugging memory leaks
// Ref.: https://social.msdn.microsoft.com/Forums/en-US/ebc7dd7a-f3c6-49f1-8a60-e381052f21b6/debugging-memory-leaks?forum=vcgeneral#53f0cc89-62fe-45e8-bbf0-56b89f2a1901
// This causes MSVC Debug runs to produce a report upon program exit, that contains memory-leaks
// together with the file:line information about where the memory was allocated.
// Note that this doesn't work with placement-new, which needs to temporarily #undef the macro
// (See AllocationPool.h for an example).
#ifdef _DEBUG
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#define DEBUG_CLIENTBLOCK new(_CLIENT_BLOCK, __FILE__, __LINE__)
#define new DEBUG_CLIENTBLOCK
// For some reason this works magically - each "new X" gets replaced as "new(_CLIENT_BLOCK, "file", line) X"
// The CRT has a definition for this operator new that stores the debugging info for leak-finding later.
#endif
#endif
#elif defined(__GNUC__)
// TODO: Can GCC explicitly mark classes as abstract (no instances can be created)?
#define abstract
// override is part of c++11
#if __cplusplus < 201103L
#define override
#endif
#define OBSOLETE __attribute__((deprecated))
#define NORETURN __attribute((__noreturn__))
#define NOEXCEPT noexcept
#define CAN_THROW noexcept(false)
#else
#error "You are using an unsupported compiler, you might need to #define some stuff here for your compiler"
#endif
#ifdef _DEBUG
#define NORETURNDEBUG NORETURN
#else
#define NORETURNDEBUG
#endif
#include <stddef.h>
// Integral types with predefined sizes:
typedef signed long long Int64;
typedef signed int Int32;
typedef signed short Int16;
typedef signed char Int8;
typedef unsigned long long UInt64;
typedef unsigned int UInt32;
typedef unsigned short UInt16;
typedef unsigned char UInt8;
typedef unsigned char Byte;
typedef Byte ColourID;
template <typename T, size_t Size>
class SizeChecker
{
static_assert(sizeof(T) == Size, "Check the size of integral types");
};
template class SizeChecker<Int64, 8>;
template class SizeChecker<Int32, 4>;
template class SizeChecker<Int16, 2>;
template class SizeChecker<Int8, 1>;
template class SizeChecker<UInt64, 8>;
template class SizeChecker<UInt32, 4>;
template class SizeChecker<UInt16, 2>;
template class SizeChecker<UInt8, 1>;
// A macro to disallow the copy constructor and operator = functions
// This should be used in the declarations for any class that shouldn't allow copying itself
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName &) = delete; \
TypeName & operator =(const TypeName &) = delete
// A macro that is used to mark unused local variables, to avoid pedantic warnings in gcc / clang / MSVC
// Note that in MSVC it requires the full type of X to be known
#define UNUSED_VAR(X) (void)(X)
// A macro that is used to mark unused function parameters, to avoid pedantic warnings in gcc
// Written so that the full type of param needn't be known
#ifdef _MSC_VER
#define UNUSED(X)
#else
#define UNUSED UNUSED_VAR
#endif
// OS-dependent stuff:
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#define _WIN32_WINNT _WIN32_WINNT_WS03 // We want to target Windows XP with Service Pack 2 & Windows Server 2003 with Service Pack 1 and higher
// Windows SDK defines min and max macros, messing up with our std::min and std::max usage
#define NOMINMAX
#include <Windows.h>
#include <winsock2.h>
#include <Ws2tcpip.h> // IPv6 stuff
// Windows SDK defines GetFreeSpace as a constant, probably a Win16 API remnant
#ifdef GetFreeSpace
#undef GetFreeSpace
#endif // GetFreeSpace
#else
#include <sys/types.h>
#include <sys/time.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <time.h>
#include <dirent.h>
#include <errno.h>
#include <iostream>
#include <cstring>
#include <pthread.h>
#include <semaphore.h>
#include <fcntl.h>
#include <unistd.h>
#endif
// CRT stuff:
#include <sys/stat.h>
#include <cassert>
#include <cstdio>
#include <cmath>
#include <cstdarg>
// STL stuff:
#include <array>
#include <chrono>
#include <vector>
#include <list>
#include <deque>
#include <string>
#include <map>
#include <algorithm>
#include <memory>
#include <set>
#include <queue>
#include <limits>
#include <random>
#include <type_traits>
#include <atomic>
#include <mutex>
#include <thread>
#include <condition_variable>
// Common headers (part 1, without macros):
#include "fmt.h"
#include "StringUtils.h"
#include "OSSupport/CriticalSection.h"
#include "OSSupport/Event.h"
#include "OSSupport/File.h"
#include "OSSupport/StackTrace.h"
#ifndef TEST_GLOBALS
#include "LoggerSimple.h"
#else
#include "fmt/printf.h"
// Logging functions
template <typename ... Args>
void LOG(const char * a_Format, const Args & ... a_Args)
{
fmt::printf(a_Format, a_Args...);
putchar('\n');
fflush(stdout);
}
#define LOGERROR LOG
#define LOGWARNING LOG
#define LOGD LOG
#define LOGINFO LOG
#define LOGWARN LOG
template <typename ... Args>
void FLOG(const char * a_Format, const Args & ... a_Args)
{
fmt::print(a_Format, a_Args...);
putchar('\n');
fflush(stdout);
}
#define FLOGERROR FLOG
#define FLOGWARNING FLOG
#define FLOGD FLOG
#define FLOGINFO FLOG
#define FLOGWARN FLOG
#endif
// Common definitions:
/** Evaluates to the number of elements in an array (compile-time!) */
#define ARRAYCOUNT(X) (sizeof(X) / sizeof(*(X)))
/** Allows arithmetic expressions like "32 KiB" (but consider using parenthesis around it, "(32 KiB)") */
#define KiB * 1024
#define MiB * 1024 * 1024
/** Faster than (int)floorf((float)x / (float)div) */
#define FAST_FLOOR_DIV(x, div) (((x) - (((x) < 0) ? ((div) - 1) : 0)) / (div))
// Own version of ASSERT() that plays nicely with the testing framework
#ifdef TEST_GLOBALS
class cAssertFailure
{
AString mExpression;
AString mFileName;
int mLineNumber;
public:
cAssertFailure(const AString & aExpression, const AString & aFileName, int aLineNumber):
mExpression(aExpression),
mFileName(aFileName),
mLineNumber(aLineNumber)
{
}
const AString & expression() const { return mExpression; }
const AString & fileName() const { return mFileName; }
int lineNumber() const { return mLineNumber; }
};
#ifdef _DEBUG
#define ASSERT(x) do { if (!(x)) { throw cAssertFailure(#x, __FILE__, __LINE__);} } while (0)
#else
#define ASSERT(...)
#endif
// Pretty much the same as ASSERT() but stays in Release builds
#define VERIFY(x) (!!(x) || ( LOGERROR("Verification failed: %s, file %s, line %i", #x, __FILE__, __LINE__), exit(1), 0))
#else // TEST_GLOBALS
#ifdef _DEBUG
#define ASSERT(x) ( !!(x) || ( LOGERROR("Assertion failed: %s, file %s, line %i", #x, __FILE__, __LINE__), PrintStackTrace(), assert(0), 0))
#else
#define ASSERT(x)
#endif
// Pretty much the same as ASSERT() but stays in Release builds
#define VERIFY(x) (!!(x) || ( LOGERROR("Verification failed: %s, file %s, line %i", #x, __FILE__, __LINE__), PrintStackTrace(), exit(1), 0))
#endif // else TEST_GLOBALS
/** Use to mark code that should be impossible to reach. */
#define UNREACHABLE(x) do { FLOGERROR("Hit unreachable code: {0}, file {1}, line {2}", #x, __FILE__, __LINE__); PrintStackTrace(); std::terminate(); } while (false)
/** Clamp X to the specified range. */
template <typename T>
T Clamp(T a_Value, T a_Min, T a_Max)
{
return (a_Value < a_Min) ? a_Min : ((a_Value > a_Max) ? a_Max : a_Value);
}
/** Floors a value, then casts it to C (an int by default) */
template <typename C = int, typename T>
typename std::enable_if<std::is_arithmetic<T>::value, C>::type FloorC(T a_Value)
{
return static_cast<C>(std::floor(a_Value));
}
/** Ceils a value, then casts it to C (an int by default) */
template <typename C = int, typename T>
typename std::enable_if<std::is_arithmetic<T>::value, C>::type CeilC(T a_Value)
{
return static_cast<C>(std::ceil(a_Value));
}
//temporary replacement for std::make_unique until we get c++14
namespace cpp14
{
template <class T, class... Args>
std::unique_ptr<T> make_unique(Args&&... args)
{
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
}
// a tick is 50 ms
using cTickTime = std::chrono::duration<int, std::ratio_multiply<std::chrono::milliseconds::period, std::ratio<50>>>;
using cTickTimeLong = std::chrono::duration<Int64, cTickTime::period>;
#ifndef TOLUA_TEMPLATE_BIND
#define TOLUA_TEMPLATE_BIND(x)
#endif
#ifdef TOLUA_EXPOSITION
#error TOLUA_EXPOSITION should never actually be defined
#endif
template <typename T>
auto ToUnsigned(T a_Val)
{
ASSERT(a_Val >= 0);
return static_cast<std::make_unsigned_t<T>>(a_Val);
}
// Common headers (part 2, with macros):
#include "Vector3.h"
#include "BiomeDef.h"
#include "ChunkDef.h"
