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cuberite-2a/src/Globals.h

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// 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)
// MSVC produces warning C4481 on the override keyword usage, so disable the warning altogether
#pragma warning(disable:4481)
// 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 : 4127) // Conditional expression is constant
#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
// Disabling this warning, because we know what we're doing when we're doing this:
#pragma warning(disable: 4355) // 'this' used in initializer list
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// 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
// 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)
// No alignment needed in MSVC
#define ALIGN_8
#define ALIGN_16
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#define FORMATSTRING(formatIndex, va_argsIndex)
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// MSVC has its own custom version of zu format
#define SIZE_T_FMT "%Iu"
#define SIZE_T_FMT_PRECISION(x) "%" #x "Iu"
#define SIZE_T_FMT_HEX "%Ix"
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#define NORETURN __declspec(noreturn)
#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 ALIGN_8 __attribute__((aligned(8)))
#define ALIGN_16 __attribute__((aligned(16)))
// Some portability macros :)
#define stricmp strcasecmp
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#define FORMATSTRING(formatIndex, va_argsIndex) __attribute__((format (printf, formatIndex, va_argsIndex)))
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#if defined(_WIN32)
// We're compiling on MinGW, which uses an old MSVCRT library that has no support for size_t printfing.
// We need direct size formats:
#if defined(_WIN64)
#define SIZE_T_FMT "%I64u"
#define SIZE_T_FMT_PRECISION(x) "%" #x "I64u"
#define SIZE_T_FMT_HEX "%I64x"
#else
#define SIZE_T_FMT "%u"
#define SIZE_T_FMT_PRECISION(x) "%" #x "u"
#define SIZE_T_FMT_HEX "%x"
#endif
#else
// We're compiling on Linux, so we can use libc's size_t printf format:
#define SIZE_T_FMT "%zu"
#define SIZE_T_FMT_PRECISION(x) "%" #x "zu"
#define SIZE_T_FMT_HEX "%zx"
#endif
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#define NORETURN __attribute((__noreturn__))
#else
#error "You are using an unsupported compiler, you might need to #define some stuff here for your compiler"
/*
// Copy and uncomment this into another #elif section based on your compiler identification
// Explicitly mark classes as abstract (no instances can be created)
#define abstract
// Mark virtual methods as overriding (forcing them to have a virtual function of the same signature in the base class)
#define override
// Mark functions as obsolete, so that their usage results in a compile-time warning
#define OBSOLETE
// Mark types / variables for alignment. Do the platforms need it?
#define ALIGN_8
#define ALIGN_16
*/
#endif
#ifdef _DEBUG
#define NORETURNDEBUG NORETURN
#else
#define NORETURNDEBUG
#endif
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#include <stddef.h>
// Integral types with predefined sizes:
typedef long long Int64;
typedef int Int32;
typedef short Int16;
typedef unsigned long long UInt64;
typedef unsigned int UInt32;
typedef unsigned short UInt16;
typedef unsigned char Byte;
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// If you get an error about specialization check the size of integral types
template <typename T, size_t Size, bool x = sizeof(T) == Size>
class SizeChecker;
template <typename T, size_t Size>
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class SizeChecker<T, Size, true>
{
T v;
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};
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template class SizeChecker<Int64, 8>;
template class SizeChecker<Int32, 4>;
template class SizeChecker<Int16, 2>;
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template class SizeChecker<UInt64, 8>;
template class SizeChecker<UInt32, 4>;
template class SizeChecker<UInt16, 2>;
// A macro to disallow the copy constructor and operator = functions
// This should be used in the private: declarations for any class that shouldn't allow copying itself
#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
TypeName(const TypeName &); \
void operator =(const TypeName &)
// A macro that is used to mark unused function parameters, to avoid pedantic warnings in gcc
#define UNUSED(X) (void)(X)
// OS-dependent stuff:
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#define _WIN32_WINNT 0x501 // We want to target WinXP and higher
#include <Windows.h>
#include <winsock2.h>
#include <Ws2tcpip.h> // IPv6 stuff
// Windows SDK defines min and max macros, messing up with our std::min and std::max usage
#undef min
#undef max
// 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 <cstdio>
#include <cstring>
#include <pthread.h>
#include <semaphore.h>
#include <errno.h>
#include <fcntl.h>
#endif
#if defined(ANDROID_NDK)
#define FILE_IO_PREFIX "/sdcard/mcserver/"
#else
#define FILE_IO_PREFIX ""
#endif
// CRT stuff:
#include <sys/stat.h>
#include <assert.h>
#include <stdio.h>
#include <math.h>
#include <stdarg.h>
// STL stuff:
#include <vector>
#include <list>
#include <deque>
#include <string>
#include <map>
#include <algorithm>
#include <memory>
#include <set>
#include <queue>
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#include <limits>
#ifndef TEST_GLOBALS
// Common headers (part 1, without macros):
#include "StringUtils.h"
#include "OSSupport/Sleep.h"
#include "OSSupport/CriticalSection.h"
#include "OSSupport/Semaphore.h"
#include "OSSupport/Event.h"
#include "OSSupport/Thread.h"
#include "OSSupport/File.h"
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#include "Logger.h"
#else
// Logging functions
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void inline LOGERROR(const char* a_Format, ...) FORMATSTRING(1, 2);
void inline LOGERROR(const char* a_Format, ...)
{
va_list argList;
va_start(argList, a_Format);
vprintf(a_Format, argList);
va_end(argList);
}
#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 writes failed assertions to the log for review
#ifdef TEST_GLOBALS
class cAssertFailure
{
};
#ifdef _WIN32
#if (defined(_MSC_VER) && defined(_DEBUG))
#define DBG_BREAK _CrtDbgBreak()
#else
#define DBG_BREAK
#endif
#define REPORT_ERROR(FMT, ...) \
{ \
AString msg = Printf(FMT, __VA_ARGS__); \
puts(msg.c_str()); \
fflush(stdout); \
OutputDebugStringA(msg.c_str()); \
DBG_BREAK; \
}
#else
#define REPORT_ERROR(FMT, ...) \
{ \
AString msg = Printf(FMT, __VA_ARGS__); \
puts(msg.c_str()); \
fflush(stdout); \
}
#endif
#define ASSERT(x) do { if (!(x)) { throw cAssertFailure();} } while (0)
#define testassert(x) do { if (!(x)) { REPORT_ERROR("Test failure: %s, file %s, line %d\n", #x, __FILE__, __LINE__); exit(1); } } while (0)
#define CheckAsserts(x) do { try {x} catch (cAssertFailure) { break; } REPORT_ERROR("Test failure: assert didn't fire for %s, file %s, line %d\n", #x, __FILE__, __LINE__); exit(1); } while (0)
#else
#ifdef _DEBUG
#define ASSERT( x) ( !!(x) || ( LOGERROR("Assertion failed: %s, file %s, line %i", #x, __FILE__, __LINE__), assert(0), 0))
#else
#define ASSERT(x) ((void)(x))
#endif
#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))
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// Same as assert but in all Self test builds
#ifdef SELF_TEST
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#define assert_test(x) ( !!(x) || (assert(!#x), exit(1), 0))
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#endif
// Allow both Older versions of MSVC and newer versions of everything use a shared_ptr:
// Note that we cannot typedef, because C++ doesn't allow (partial) templates to be typedeffed.
#if (defined(_MSC_VER) && (_MSC_VER < 1600))
// MSVC before 2010 doesn't have std::shared_ptr, but has std::tr1::shared_ptr, defined in <memory> included earlier
#define SharedPtr std::tr1::shared_ptr
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#elif (defined(_MSC_VER) || (__cplusplus >= 201103L))
// C++11 has std::shared_ptr in <memory>, included earlier
#define SharedPtr std::shared_ptr
#else
// C++03 has std::tr1::shared_ptr in <tr1/memory>
#include <tr1/memory>
#define SharedPtr std::tr1::shared_ptr
#endif
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/** A generic interface used mainly in ForEach() functions */
template <typename Type> class cItemCallback
{
public:
virtual ~cItemCallback() {}
/** Called for each item in the internal list; return true to stop the loop, or false to continue enumerating */
virtual bool Item(Type * a_Type) = 0;
} ;
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/** Clamp X to the specified range. */
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template <typename T>
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T Clamp(T a_Value, T a_Min, T a_Max)
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{
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return (a_Value < a_Min) ? a_Min : ((a_Value > a_Max) ? a_Max : a_Value);
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}
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#ifndef TOLUA_TEMPLATE_BIND
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#define TOLUA_TEMPLATE_BIND(x)
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#endif
// Common headers (part 2, with macros):
#include "ChunkDef.h"
#include "BiomeDef.h"
#include "BlockID.h"
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#include "BlockInfo.h"