// 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)

// Use non-standard defines in <cmath>
#define _USE_MATH_DEFINES

#elif defined(__GNUC__)

// TODO: Can GCC explicitly mark classes as abstract (no instances can be created)?
#define abstract

#else

#error "You are using an unsupported compiler, you might need to #define some stuff here for your compiler"

#endif





// 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;





// 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 0x502  // We want to target WinXP SP2 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/stat.h>  // for mkdir
#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





// CRT stuff:
#include <sys/stat.h>
#include <assert.h>
#include <stdio.h>
#include <math.h>
#include <stdarg.h>
#include <time.h>





// STL stuff:
#include <vector>
#include <list>
#include <deque>
#include <string>
#include <map>
#include <algorithm>
#include <memory>





// Common headers (part 1, without macros):
#include "StringUtils.h"
#include "OSSupport/CriticalSection.h"
#include "OSSupport/File.h"
#include "OSSupport/Event.h"
#include "Logger.h"





// 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

/** Faster than (int)floorf((float)x / (float)div) */
#define FAST_FLOOR_DIV(x, div) ((x) < 0 ? (((int) x / div) - 1) : ((int) x / div))

// Own version of assert() that writes failed assertions to the log for review
#ifdef NDEBUG
#define ASSERT(x) ((void) 0)
#else
#define ASSERT 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))