/*
    PIP - Platform Independent Primitives
    Global includes
    Copyright (C) 2013  Ivan Pelipenko peri4ko@gmail.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef PIINCLUDES_H
#define PIINCLUDES_H

#define PIP_VERSION            0x000300
#define PIP_VERSION_MAJOR     (PIP_VERSION & 0xFF0000) >> 16
#define PIP_VERSION_MINOR     (PIP_VERSION & 0xFF00) >> 8
#define PIP_VERSION_REVISION   PIP_VERSION & 0xFF
#define PIP_VERSION_SUFFIX     ""

#if WIN32 || WIN64 || _WIN32 || _WIN64 || __WIN32__ || __WIN64__
#  define WINDOWS
#endif
#if __QNX__ || __QNXNTO__
#  define QNX
#endif
#if __FreeBSD__
#  define FREE_BSD
#endif
#if __APPLE__ || __MACH__
#  define MAC_OS
#endif
#ifndef WINDOWS
#  ifndef QNX
#    ifndef FREE_BSD
#      ifndef MAC_OS
#        define LINUX
#      endif
#    endif
#  endif
#endif
#if __GNUC__
#  define CC_GCC
#  define CC_GCC_VERSION  ((__GNUC__ << 8) | __GNUC_MINOR__)
#  if CC_GCC_VERSION > 0x025F // > 2.95
#    ifdef LINUX
#      define HAS_LOCALE
#    endif
#  endif
#elif _MSC_VER
#  define CC_VC
#else
#  define CC_OTHER
#endif

#ifdef WINDOWS
#  ifdef CC_GCC
#    define typeof __typeof
#  endif
#else
#  define typeof __typeof__
#endif

#include <iostream>
#ifdef CC_GCC
#  include <unistd.h>
#endif
#include <stdarg.h>
#include <stddef.h>
#ifndef QNX
#  include <cstdio>
#  include <cstdlib>
#  include <clocale>
#else
#  include <stdio.h>
#  include <locale.h>
#endif
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <cctype>
#include <ctime>
#include <csignal>
//#include <signal.h>
#include <typeinfo>
#include <algorithm>
#include <string.h>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <deque>
#include <stack>
#include <set>
#include <map>
#ifdef WINDOWS
typedef int socklen_t;
#  include <conio.h>
#  include <io.h>
#  include <winsock2.h>
#  ifdef CC_VC
#    define SHUT_RDWR 2
#    pragma comment(lib, "Ws2_32.lib")
#    pragma comment(lib, "Iphlpapi.lib")
#  else
#    define SHUT_RDWR SD_BOTH
#  endif
#  include <windows.h>
#  include <wincon.h>
#  include <iphlpapi.h>
#else
#  include <netinet/in.h>
#  include <arpa/inet.h>
#  include <sys/socket.h>
#  include <fcntl.h>
#  include <sys/ioctl.h>
#  include <net/if.h>
#endif
#ifdef MAC_OS
#  include <mach/mach_traps.h>
#  include <mach/mach.h>
#  include <mach/clock.h>
#  include <crt_externs.h>
#  define environ (*_NSGetEnviron())
typedef long time_t;
extern clock_serv_t __pi_mac_clock;
#endif
#ifndef QNX
#  ifndef WINDOWS
#    ifndef FREE_BSD
#      ifndef MAC_OS
#        define environ __environ
#      endif
#    endif
#  endif
#endif
#if !defined(WINDOWS) && !defined(MAC_OS)
#  define PIP_TIMER_RT
#endif
#ifdef FREE_BSD
extern char ** environ;
#endif
#include "pimonitor.h"

extern PIMonitor piMonitor;

#define FOREVER for (;;)
#define FOREVER_WAIT FOREVER msleep(1);

typedef long long llong;
typedef unsigned char uchar;
typedef unsigned short int ushort;
typedef unsigned int uint;
typedef unsigned long ulong;
typedef unsigned long long ullong;
typedef long double ldouble;

using std::cout;
using std::cin;
using std::endl;
using std::flush;
using std::vector;
using std::list;
using std::queue;
using std::deque;
using std::stack;
using std::set;
using std::map;
using std::string;
#ifndef QNX
using std::wstring;
//#  ifndef WINDOWS
//static locale_t currentLocale_t = 0;
//#  endif
#else
typedef std::basic_string<wchar_t> wstring;
#endif
#ifdef HAS_LOCALE
static locale_t currentLocale_t = 0;
#endif

template<typename T> inline void piSwap(T & f, T & s) {T t = f; f = s; s = t;}
template<typename T> inline int piRound(const T & v) {return int(v >= T(0.) ? v + T(0.5) : v - T(0.5));}
template<typename T> inline int piFloor(const T & v) {return v < T(0) ? int(v) - 1 : int(v);}
template<typename T> inline int piCeil(const T & v) {return v < T(0) ? int(v) : int(v) + 1;}
template<typename T> inline T piAbs(const T & v) {return (v >= T(0) ? v : -v);}
template<typename T> inline T piMin(const T & f, const T & s) {return (f > s) ? s : f;}
template<typename T> inline T piMin(const T & f, const T & s, const T & t) {return (f < s && f < t) ? f : ((s < t) ? s : t);}
template<typename T> inline T piMax(const T & f, const T & s) {return (f < s) ? s : f;}
template<typename T> inline T piMax(const T & f, const T & s, const T & t) {return (f > s && f > t) ? f : ((s > t) ? s : t);}
template<typename T> inline T piClamp(const T & v, const T & min, const T & max) {return (v > max ? max : (v < min ? min : v));}

#define piRoundf piRound<float>
#define piRoundd piRound<double>
#define piFloorf piFloor<float>
#define piFloord piFloor<double>
#define piCeilf piCeil<float>
#define piCeild piCeil<double>
#define piAbss piAbs<short>
#define piAbsi piAbs<int>
#define piAbsl piAbs<long>
#define piAbsll piAbs<llong>
#define piAbsf piAbs<float>
#define piAbsd piAbs<double>
#define piMins piMin<short>
#define piMini piMin<int>
#define piMinl piMin<long>
#define piMinll piMin<llong>
#define piMinf piMin<float>
#define piMind piMin<double>
#define piMaxs piMax<short>
#define piMaxi piMax<int>
#define piMaxl piMax<long>
#define piMaxll piMax<llong>
#define piMaxf piMax<float>
#define piMaxd piMax<double>
#define piClamps piClamp<short>
#define piClampi piClamp<int>
#define piClampl piClamp<long>
#define piClampll piClamp<llong>
#define piClampf piClamp<float>
#define piClampd piClamp<double>

extern bool isPIInit;
extern bool piDebug;
extern string ifconfigPath;

#define piCout if (piDebug) cout

class PIInit {
public:
	PIInit() {
		if (isPIInit) return;
		isPIInit = true;
#ifndef WINDOWS
		sigset_t ss;
		sigemptyset(&ss);
		sigaddset(&ss, SIGALRM);
		if (pthread_sigmask(SIG_BLOCK, &ss, 0) == -1) {
			//cout << "[PITimer] sigaction error: " << errorString() << endl;
			//return 0;
		}
		ifconfigPath = "/bin/ifconfig";
		if (!fileExists(ifconfigPath)) {
			ifconfigPath = "/sbin/ifconfig";
			if (!fileExists(ifconfigPath)) {
				ifconfigPath = "/usr/bin/ifconfig";
				if (!fileExists(ifconfigPath)) {
					ifconfigPath = "/usr/sbin/ifconfig";
					if (!fileExists(ifconfigPath)) {
						ifconfigPath = "";
					}
				}
			}
		}
#else
		WSADATA wsaData;
		WSAStartup(MAKEWORD(2, 2), &wsaData);
#endif
		//piDebug = true;
#ifdef HAS_LOCALE
		//cout << "has locale" << endl;
		if (currentLocale_t != 0) {
			freelocale(currentLocale_t);
			currentLocale_t = 0;
		}
		currentLocale_t = newlocale(LC_ALL, setlocale(LC_ALL, ""), 0);
#else
		setlocale(LC_ALL, "");
#endif
#ifdef MAC_OS
		host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &__pi_mac_clock);
#endif
	}
	~PIInit() {
#ifdef WINDOWS
		WSACleanup();
#endif
#ifdef MAC_OS
		mach_port_deallocate(mach_task_self(), __pi_mac_clock);
#endif
		//if (currentLocale_t != 0) freelocale(currentLocale_t);
	}
private:
	bool fileExists(const string & p) {FILE * f = fopen(p.c_str(), "r"); if (f == 0) return false; fclose(f); return true;}
};

extern PIInit piInit;
extern lconv * currentLocale;

#ifdef WINDOWS
inline int random() {return rand();}
#  ifdef CC_VC
inline double round(const double & v) {return floor(v + 0.5);}
#  endif
#endif

inline ushort letobe_s(ushort v) {return v = (v << 8) | (v >> 8);}
inline bool atob(const string & str) { return str == "1" ? true : false;};
inline string btos(const bool num) { return num ? "0" : "1";};
inline string itos(const int num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%d", num);
#else
	sprintf_s(ch, 256, "%d", num);
#endif
	return string(ch); };
inline string ltos(const long num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%ld", num);
#else
	sprintf_s(ch, 256, "%ld", num);
#endif
	return string(ch); };
inline string uitos(const uint num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%ud", num);
#else
	sprintf_s(ch, 256, "%ud", num);
#endif
	return string(ch); };
inline string ultos(const ulong num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%lud", num);
#else
	sprintf_s(ch, 256, "%lud", num);
#endif
	return string(ch); };
inline string ftos(const float num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%g", num);
#else
	sprintf_s(ch, 256, "%g", num);
#endif
	return string(ch); };
inline string dtos(const double num) {
	char ch[256];
#ifndef CC_VC
	sprintf(ch, "%g", num);
#else
	sprintf_s(ch, 256, "%g", num);
#endif
	return string(ch); };

#ifdef CC_VC
inline string errorString() {
	char * msg;
	int err = GetLastError();
	FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&msg, 0, NULL);
	return "code " + itos(err) + " - " + string(msg);
}
#else
inline void errorClear() {errno = 0;}
inline string errorString() {int e = errno; return "code " + itos(e) + " - " + string(strerror(e));}
#endif

inline string PIPVersion() {return itos(PIP_VERSION_MAJOR) + "." + itos(PIP_VERSION_MINOR) + "." + itos(PIP_VERSION_REVISION) + PIP_VERSION_SUFFIX;}

#endif // PIINCLUDES_H