Utils.h

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#if !defined(_UTILS_H_)
#define _UTILS_H_
 
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <fcntl.h>           /* For O_* constants */
#include <sys/stat.h>        /* For mode constants */
#include <sys/types.h>
#include <stdarg.h>
#include <iomanip>
 
#include "Types.h"
#include "Base64.h"
 
#ifdef WINDOWS
    #include <io.h>
//  #include <windows.h>
    #include <winsock2.h>
    #include <ws2tcpip.h>
    #include <iphlpapi.h>
    #include <iptypes.h>
    #include "Psapi.h"
    #include "direntwin.h"
    #include <process.h>
    // #include <Dbghelp.h> // needed for program trace only, link with Dbghelp.lib
#else
    #ifndef __APPLE__
    #include <semaphore.h>
    #endif
    #include <dlfcn.h>
    #include <errno.h>
    #include <sys/utsname.h>
    #include <sys/time.h>
    #include <pthread.h>
    #include <signal.h>
#ifdef __APPLE__
    #include <mach/mach.h>
    #include <mach/mach_time.h>
    #include <dispatch/dispatch.h>
#else
    #include <sys/prctl.h>
#endif
    #include <unistd.h>
    #include <time.h>
    #include <sys/mman.h>
    #include <sys/syscall.h>
#ifndef __APPLE__
    #include <sys/sysinfo.h>
#endif
    #include <sys/socket.h>
    #include <netdb.h>
    #include <net/if.h>
    #include <sys/ioctl.h>
    #include <dirent.h>
    #include <netinet/tcp.h>
    #include <sys/wait.h>
    #include <execinfo.h>
    #include <sys/resource.h>
    #include <limits>
//  #include <curses.h>
#endif
 
#ifdef WINDOWS
    #include <direct.h>
    #define GetCurrentDirEx _getcwd
#else
    //#include <unistd.h>
    #define GetCurrentDirEx getcwd
#endif
 
#define WINSHMEMSPACE       "Local"
//#define WINSHMEMSPACE     "Global"
 
#define MAXKEYNAMELEN       256
#define MAXVALUENAMELEN     1024
#define MAXCONTENTLEN       4196
#define MAXCOMMANDLINELEN   1024
#define MAXFILENAMELEN      256
#define MAXSHMEMNAMELEN     1024
#define MAXSCRIPTLEN        10*1024
 
#define THREAD_NONE         0
#define THREAD_TERMINATED   1
#define THREAD_INIT         2
#define THREAD_RUNNING      3
#define THREAD_PAUSED       4
#define THREAD_INTERRUPTED  5
 
#define THREAD_STATS_OFF    0
#define THREAD_STATS_AUTO   1
#define THREAD_STATS_ADHOC  2
 
#ifdef WINDOWS
//  #define Mutex HANDLE
//  #define NMutex HANDLE
//  #define Semaphore HANDLE
    #define ThreadHandle HANDLE
//  #define THREAD_FUNCTION static DWORD WINAPI
//  #define THREAD_FUNCTION DWORD WINAPI
    #define THREAD_RET DWORD
    typedef LPTHREAD_START_ROUTINE THREAD_FUNCTION;
    #define THREAD_FUNCTION_CALL WINAPI
    #define THREAD_ARG LPVOID
    #define thread_ret_val(ret) return ret;
    #define DllExport __declspec(dllexport)
    #define MUTEX_INVALID NULL
    #define SOCKETWOULDBLOCK WSAEWOULDBLOCK
    #define SOCKETTRYAGAIN WSAEWOULDBLOCK
    #define abs64 _abs64
#else
//  #define Mutex pthread_mutex_t
//  #define NMutex sem_t *
//  #define Semaphore sem_t*
    #define ThreadHandle pthread_t
//  #define THREAD_FUNCTION void*(*)(void*)
    #define THREAD_RET void *
    typedef THREAD_RET (*THREAD_FUNCTION)(void *);
    #define THREAD_FUNCTION_CALL 
    #define THREAD_ARG void*
    #define thread_ret_val(ret) pthread_exit((THREAD_RET)(intptr_t)ret);
    #define stricmp strcasecmp
    #define MUTEX_INVALID 0
    #define SOCKET int
    typedef struct sockaddr SOCKADDR;
    #define SOCKET_ERROR    -1
    #define INVALID_SOCKET  -1
    #define closesocket(X)  close(X)
    #define SOCKETWOULDBLOCK EINPROGRESS
    #define SOCKETTRYAGAIN EAGAIN
    #define abs64 llabs
    #define MUTEXMEMSIZE 64
    #define EVENTMEMSIZE 256
    #define SEMAPHOREMEMSIZE 256
    #define _strcmpi strcasecmp
    #define _strnicmp strnicmp
    #define DllExport
#endif
 
#ifndef SD_BOTH
    #define SD_BOTH 2
#endif
 
#define OSCPU_UNKNOWN 0
#define OSCPU_X86 1
#define OSCPU_AMD64 2
#define OSCPU_IA64 3
 
#define ERROR64 0xFFFFFFFFFFFFFFFFL
#define ERROR32 0xFFFFFFFF
#define ERROR16 0xFFFF
#define ERROR8 0xFF
 
#include "PsyTime.h"
 
namespace cmlabs {

//                        INIT/EXIT                         //

class CleanShutdown {
public:
    CleanShutdown();
    ~CleanShutdown();
};

bool ClearUtilsMaps();

//                         Logging                          //
 
#define LOG_NOTOPIC     0
#define LOG_SYSTEM      1
#define LOG_NETWORK     2
#define LOG_MEMORY      3
#define LOG_PROCESS     4
#define LOG_TOPIC5      5
#define LOG_TOPIC6      6
#define LOG_TOPIC7      7
#define LOG_TOPIC8      8
#define LOG_TOPIC9      9
#define LOG_TOPIC10     10
#define LOG_TOPIC11     11
#define LOG_MAXCOUNT    12
 
#define LOGPRINT    1
#define LOGDEBUG    2

std::string GetDataTypeName(uint32 datatype);
uint32 GetDataTypeID(const char* typeName);
 
// #define GETLOGTEXT(l) (char*)l+sizeof(LogEntry)
struct LogEntry {
    uint32  size;       // 
    uint32  cid;        // LOGENTRYID
    uint64  time;       // 
    uint32  source;     // 
    uint8   subject;    // 
    uint8   level;      // 
    uint8   type;       // 
    const char* getText(uint32& len);
    bool setText(char* text, uint32 len);
    std::string toJSON();
    std::string toXML();
};

class LogReceiver {
public:
    LogReceiver() {}
//  virtual bool logPrint(uint32 source, uint8 subject, uint8 level, std::string text, uint64 time) = 0;
//  virtual bool logDebug(uint32 source, uint8 subject, uint8 level, std::string text, uint64 time) = 0;
    virtual bool logEntry(LogEntry* entry) = 0;
};

class LogSystem {
public:
    LogSystem();
    ~LogSystem();

    static LogSystem* LogSingleton;
    static bool SetLogReceiver(LogReceiver* rec);

    static bool SetLogFileOutput(const char* logfile, bool printOut = true);
    static bool SetLogLevelDebug(uint8 level);
    static bool SetLogLevelDebug(uint8 subject, uint8 level);
    static bool SetLogLevelVerbose(uint8 level);
    static bool SetLogLevelVerbose(uint8 subject, uint8 level);

    static bool LogSystemPrint(uint32 source, uint8 subject, uint8 level, const char *formatstring, ... );
    static bool LogSystemDebug(uint32 source, uint8 subject, uint8 level, const char *formatstring, ... );
 
    uint8 logLevelVerbose[LOG_MAXCOUNT];
    uint8 logLevelDebug[LOG_MAXCOUNT];
    LogReceiver* logReceiverObj;
    char* logfile;
    bool printToStdOut;
};
 
#define LogPrint LogSystem::LogSystemPrint
#define LogDebug LogSystem::LogSystemDebug
 
namespace utils {


bool UtilsTest();
 
// bool GetSystemName(uint32 id, const char* title, char* name, uint32 size);
 
 

//                         Mutexes                          //
 
#ifdef WINDOWS
    #define SharedMemoryFileHandleMapType std::map<char*, HANDLE>
#else
    #define SharedMemoryFileHandleMapType std::map<void*, std::string>
#endif
static SharedMemoryFileHandleMapType* SharedMemoryFileHandleMap = NULL;
 
static uint16 SharedSystemInstance = 0;


bool SetSharedSystemInstance(uint32 inst);
uint32 GetSharedSystemInstance();
 
// https://stackoverflow.com/questions/44807302/create-c-timer-in-macos/52905687#52905687

typedef bool (* DrumBeatFunc)(uint32 id, uint32 count);

struct DrumBeatInfo {
    uint32 id;
    uint64 createdTime;
    uint64 started;
    uint32 interval;
    DrumBeatFunc func;
    uint32 count;
    #ifdef WINDOWS
        HANDLE handle;
    #else
        #ifdef __APPLE__
            dispatch_source_t handle;
        #else
            timer_t handle;
        #endif
    #endif
};
 
static std::map<uint32, DrumBeatInfo>* DrumBeatMap = NULL;

bool CreateDrumBeat(uint32 id, uint32 interval, DrumBeatFunc func, bool autostart = false);
bool StartDrumBeat(uint32 id);
bool StopDrumBeat(uint32 id);
bool EndDrumBeat(uint32 id);

class Mutex {
public:
    Mutex();
    Mutex(const char* name, bool force = false);
    ~Mutex();
    bool enter();
    bool enter(uint32 timeout, const char* errorMsg = NULL);
    bool leave();
//  bool destroy();
protected:
    char *name;
    bool created;
    uint32 osid;
    uint32 total;
    uint32 count;
    #ifdef WINDOWS
        HANDLE mutex;
    #else
        //sem_t* semaphore;
        pthread_mutex_t* mutex;
    #endif
};
 

class Semaphore {
public:
    Semaphore(uint32 maxCount = 100);
    Semaphore(const char* name, uint32 maxCount = 100);
    ~Semaphore();
    bool wait();
    bool wait(uint32 timeout);
    bool signal();
//  bool destroy();
    char *name;
protected:
    #ifdef WINDOWS
        HANDLE semaphore;
    #else
        #ifdef __APPLE__
            void* semaphore_impl;  /* dispatch_semaphore_t when name==NULL, else char* to shared memory */
        #else
            sem_t* semaphore;
        #endif
    #endif
};

class Event {
public:
    Event();
    Event(const char* name);
    ~Event();
    bool waitNext();
    bool waitNext(uint32 timeout);
    bool signal();
//  bool destroy();
protected:
    char *name;
    #ifdef WINDOWS
        HANDLE event;
    #else
        pthread_cond_t* event;
        pthread_mutex_t* mutex;
    #endif
};

bool EnterMutex(const char* name, uint32 ms, bool autocreate = true);
bool LeaveMutex(const char* name);
bool DestroyMutex(const char* name);

Semaphore* GetSemaphore(const char* name, bool autocreate = true);
bool WaitForSemaphore(const char* name, uint32 ms, bool autocreate = true);
bool SignalSemaphore(const char* name);
bool DestroySemaphore(const char* name);

bool WaitNextEvent(const char* name, uint32 ms, bool autocreate = true);
bool SignalEvent(const char* name);
bool DestroyEvent(const char* name);

 
static Mutex* SharedMemoryMutexMapMutex = NULL;
static std::map<std::string, Mutex*>* SharedMemoryMutexMap = NULL;
typedef std::pair<std::string, Mutex*> SharedMemoryMutexMapPair;
static Mutex* SharedMemorySemaphoreMapMutex = NULL;
static std::map<std::string, Semaphore*>* SharedMemorySemaphoreMap = NULL;
typedef std::pair<std::string, Semaphore*> SharedMemorySemaphoreMapPair;
static Mutex* SharedMemoryEventMapMutex = NULL;
static std::map<std::string, Event*>* SharedMemoryEventMap = NULL;
typedef std::pair<std::string, Event*> SharedMemoryEventMapPair;
 
#ifdef WINDOWS
struct ProcessData {
    ProcessData() { hOutRead = NULL; hErrRead = NULL; }
    PROCESS_INFORMATION procInfo;
    STARTUPINFO si;
    HANDLE hOutRead;    
    HANDLE hErrRead;    
};
static std::map<uint32, ProcessData*>* ProcessInformationMap = NULL;
typedef std::pair <uint32, ProcessData*> Proc_Pair;
static HANDLE ghJob = NULL;
#endif


struct TimerSchedule {
    uint32 globalID;
    uint32 id;
    uint64 start;
    uint64 end;
    uint32 interval;
    #ifdef WINDOWS
        HANDLE handle;
    #else
        #ifdef __APPLE__
            dispatch_source_t handle;
        #else
            timer_t handle;
        #endif
    #endif
};

struct TimerTrigger {
    uint32 id;
    uint64 time;
};

class Timer {
public:
    static std::map<uint32, Timer*>* timers;
 
    Timer();
    ~Timer();

    bool addTimer(uint32 id, uint32 interval, uint64 start = 0, uint64 end = 0);
    bool triggerTimer(uint32 id);
    bool waitForTimer(uint32 timeout, uint32& id, uint64& time);
    bool removeTimer(uint32 id);
 
private:
    uint32 globalID;
    Mutex mutex;
    Semaphore semaphore;
    std::queue<TimerTrigger*> triggers;
    std::map<uint32, TimerSchedule*> schedules;
    std::list<TimerSchedule*> oldSchedules;
};
 
#ifdef WINDOWS
    void CALLBACK TimerCallback(PVOID arg, BOOLEAN TimerOrWaitFired);
#else
   static void TimerCallback(int sig, siginfo_t *siginfo, void *context);
#endif
bool UnitTest_Timer();
bool UnitTest_Utils();

//                       Wait Queue                         //

template <typename T>
class WaitQueue {
public:
    WaitQueue() {}
    virtual ~WaitQueue() {}

    bool add(T entry) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        internalQueue.push(entry);
        semaphore.signal();
        mutex.leave();
        return true;
    }

    uint32 getCount() {
        uint32 size;
        if (!mutex.enter(200, __FUNCTION__))
            return 0;
        size = (uint32)internalQueue.size();
        mutex.leave();
        return size;
    }

    bool peekFirst(T& first) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (!internalQueue.size()) {
            mutex.leave();
            return false;
        }
        first = internalQueue.front();
        mutex.leave();
        return true;
    }

    bool takeFirst(T& first) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (!internalQueue.size()) {
            mutex.leave();
            return false;
        }
        first = internalQueue.front();
        internalQueue.pop();
        mutex.leave();
        return true;
    }

    bool waitForAndPeekFirst(T& first, uint32 timeoutMS) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (internalQueue.size()) {
            first = internalQueue.front();
            mutex.leave();
            return true;
        }
        mutex.leave();
        if (!semaphore.wait(timeoutMS))
            return false;
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (internalQueue.size()) {
            first = internalQueue.front();
            mutex.leave();
            return true;
        }
        else {
            mutex.leave();
            return false;
        }
    }

    bool waitForAndTakeFirst(T& first, uint32 timeoutMS) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (internalQueue.size()) {
            first = internalQueue.front();
            internalQueue.pop();
            mutex.leave();
            return true;
        }
        mutex.leave();
        if (!semaphore.wait(timeoutMS))
            return false;
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (internalQueue.size()) {
            first = internalQueue.front();
            internalQueue.pop();
            mutex.leave();
            return true;
        }
        else {
            mutex.leave();
            return false;
        }
    }

    virtual bool clear() {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        std::queue<T> empty;
        std::swap(internalQueue, empty);
        mutex.leave();
        return true;
    }
 
protected:
    Mutex mutex;
    Semaphore semaphore;
    std::queue<T> internalQueue;
};

template <typename T>
class WaitQueuePointer : public WaitQueue<T> {
public:
    WaitQueuePointer() {}
    virtual ~WaitQueuePointer() { clear(); }

    T waitForAndTakeFirst(uint32 timeoutMS) {
        T first;
        if (WaitQueue<T>::waitForAndTakeFirst(first, timeoutMS))
            return first;
        else
            return NULL;
    }

    virtual bool clear() {
        if (!WaitQueue<T>::mutex.enter(200, __FUNCTION__))
            return false;
        while (WaitQueue<T>::internalQueue.size()) {
            delete(WaitQueue<T>::internalQueue.front());
            WaitQueue<T>::internalQueue.pop();
        }
        WaitQueue<T>::mutex.leave();
        return true;
    }
};
 

//                       Time Queue                         //

template <typename T>
struct TimeQueueEntry {
    uint64 time;
    T entry;
};

template <typename T>
class TimeQueue {
public:
    TimeQueue() {}
    virtual ~TimeQueue() {}

    bool add(uint64 time, T entry) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        TimeQueueEntry<T> newEntry;
        newEntry.time = time;
        newEntry.entry = entry;
        typename std::list< TimeQueueEntry<T> >::iterator i = internalList.begin(),
            e = internalList.end();
        while (i != e) {
            if (time < (*i).time) {
                internalList.insert(i, newEntry);
                mutex.leave();
                return true;
            }
            i++;
        }
        internalList.push_back(newEntry);
        mutex.leave();
        return true;
    }

    uint32 getCount() {
        uint32 size;
        if (!mutex.enter(200, __FUNCTION__))
            return 0;
        size = (uint32)internalList.size();
        mutex.leave();
        return size;
    }

    bool getNextEntryDue(T& entry) {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        if (!internalList.size()) {
            mutex.leave();
            return false;
        }
        uint64 now = GetTimeNow();
        TimeQueueEntry<T> first = internalList.front();
        if (first.time < now) {
            internalList.pop_front();
            entry = first.entry;
            mutex.leave();
            return true;
        }
        mutex.leave();
        return false;
    }

    virtual bool clear() {
        if (!mutex.enter(200, __FUNCTION__))
            return false;
        std::list< TimeQueueEntry<T> > empty;
        std::swap(internalList, empty);
        mutex.leave();
        return true;
    }
 
protected:
    Mutex mutex;
    std::list< TimeQueueEntry<T> > internalList;
};

template <typename T>
class TimeQueuePointer : public TimeQueue<T> {
public:
    TimeQueuePointer() {}
    virtual ~TimeQueuePointer() { clear(); }

    T getNextEntryDue() {
        T first;
        if (TimeQueue<T>::getNextEntryDue(first))
            return first;
        else
            return NULL;
    }

    virtual bool clear() {
        if (!TimeQueue<T>::mutex.enter(200, __FUNCTION__))
            return false;
        typename std::list< TimeQueueEntry<T> >::iterator i = TimeQueue<T>::internalList.begin(),
            e = TimeQueue<T>::internalList.end();
        while (i != e) {
            delete((*i).entry);
            i++;
        }
        TimeQueue<T>::internalList.clear();
        TimeQueue<T>::mutex.leave();
        return true;
    }
};
 

//                      Shared Memory                       //



char* CreateSharedMemorySegment(const char* name, uint64 size, bool force = false);
char* OpenSharedMemorySegment(const char* name, uint64 size);
bool CloseSharedMemorySegment(char* data, uint64 size);
// Destroy named shared memory segment
// bool DestroySharedMemorySegment(char* data, uint32 size);



uint64 ntoh64(const uint64 *input);
uint64 hton64(const uint64_t *input);

uint32 Calc32BitFieldSize(uint32 bitsize);
bool Reset32BitField(char* bitfield, uint32 bytesize);
bool GetFirstFreeBitLoc(const char* bitfield, uint32 bytesize, uint32& loc);
bool GetFirstFreeBitLocN(const char* bitfield, uint32 bytesize, uint32 num, uint32& loc);
bool SetBit(uint32 loc, bit value, char* bitfield, uint32 bytesize);
bool SetBitN(uint32 loc, uint32 num, bit value, char* bitfield, uint32 bytesize);
bool GetBit(uint32 loc, const char* bitfield, uint32 bytesize, bit& val);
bool GetLastOccupiedBitLoc(const char* bitfield, uint32 bytesize, uint32& loc);

std::string GetBitFieldAsString(const char* bitfield, uint32 bytesize, uint32 size);
std::string PrintBitFieldString(const char* bitfield, uint32 bytesize, uint32 size, const char* title);

 

//                        Threading                         //


std::string PrintProgramTrace(uint32 startLine = 0, uint32 endLine = 0);
std::list<std::string> GetProgramTrace();

int32 AtomicIncrement32(int32 volatile &v);
int64 AtomicIncrement64(int64 volatile &v);
int32 AtomicDecrement32(int32 volatile &v);
int64 AtomicDecrement64(int64 volatile &v);

bool Sleep(uint32 ms);

bool CreateThread(THREAD_FUNCTION func, void* args, ThreadHandle& thread, uint32 &osID);

bool WaitForThreadToFinish(ThreadHandle hThread, uint32 timeoutMS = 0);
bool ReapThread(ThreadHandle& hThread);
bool TryReapThread(ThreadHandle& hThread);

bool CheckForThreadFinished(ThreadHandle hThread);

bool TerminateThread(ThreadHandle hThread);

bool PauseThread(ThreadHandle hThread);

bool ContinueThread(ThreadHandle hThread);

bool GetCurrentThreadUniqueID(uint32 &tid);

bool GetCurrentThreadOSID(uint32 &tid);

bool GetCurrentThread(ThreadHandle& thread);

bool IsThreadRunning(ThreadHandle hThread);

uint32 GetThreadStatColAbility();
 
#if defined WINDOWS
    #define FileTimeToUint64(ft) (((uint64)(ft.dwHighDateTime))<<32)|((uint64)ft.dwLowDateTime)
#endif

bool GetCPUTicks(ThreadHandle hThread, uint64& ticks);

bool GetCPUTicks(uint64& ticks);

bool GetProcessCPUTicks(uint64& ticks);

bool GetProcessCPUTicks(uint32 osProcID, uint64& ticks);

bool GetProcAndOSCPUUsage(double& procPercentUse, double& osPercentUse, uint64 &prevOSTicks, uint64 &prevOSIdleTicks, uint64 &prevProcTicks);

bool GetProcAndOSCPUUsage(uint32 osProcID, double& procPercentUse, double& osPercentUse, uint64 &prevOSTicks, uint64 &prevOSIdleTicks, uint64 &prevProcTicks);

bool GetOSCPUUsage(double& percentUse);

bool GetThreadPriority(ThreadHandle hThread, uint16 priority);

bool SetThreadPriority(ThreadHandle hThread, uint16 priority);

int ToOSPriority(int pri);

int FromOSPriority(int pri);

bool SignalThread(ThreadHandle hThread, int32 signal);


//                       Desktop                            //


bool GetDesktopSize(uint32& width, uint32& height);

bool RenameConsoleWindow(const char* name, bool prepend = false);

bool MoveConsoleWindow(int32 x = -1, int32 y = -1, int32 w = -1, int32 h = -1);


//                      Processes                           //
 
#define PROC_ERROR      0
#define PROC_TERMINATED 1
#define PROC_NOTSTARTED 2
#define PROC_RUNNING    3
#define PROC_TIMEOUT    4
 
#define NUM_PIPES          2
#define PARENT_WRITE_PIPE  0
#define PARENT_READ_PIPE   1
/* always in a pipe[], pipe[0] is for read and 
    pipe[1] is for write */
#define READ_FD  0
#define WRITE_FD 1
#define PARENT_READ_FD  ( (*pipes)[PARENT_READ_PIPE][READ_FD]   )
#define PARENT_WRITE_FD ( (*pipes)[PARENT_WRITE_PIPE][WRITE_FD] )
#define CHILD_READ_FD   ( (*pipes)[PARENT_WRITE_PIPE][READ_FD]  )
#define CHILD_WRITE_FD  ( (*pipes)[PARENT_READ_PIPE][WRITE_FD]  )
 
#define PROCBUFSIZE 4096


int RunOSCommand(const char* cmdline, const char* initdir, uint32 timeout, std::string& stdoutString, std::string& stderrString);
uint32 NewProcess(const char* cmdline, const char* initdir = NULL, const char* title = NULL,
                  int16 x = -1, int16 y = -1, int16 w = -1, int16 h = -1);
uint8 GetProcessStatus(uint32 proc, int &returncode);
bool EndProcess(uint32 proc);

uint32 NewProcessEx(const char* cmdline, const char* initdir, const char* title,
                    const std::map<std::string, std::string>* env,
                    bool captureOutput, bool ignoreOutput, bool newProcessGroup);
bool ReadProcessOutput(uint32 proc, std::string& out, std::string& err);
bool SendProcessBreak(uint32 proc, int sig);
uint8 WaitForProcess(uint32 proc, uint32 timeout, int &returncode);
uint32 GetLocalProcessID();


//                      DLL Libraries                       //
 
#ifdef WINDOWS
    #define DLLHandle HINSTANCE
#else // WINDOWS
    #define DLLHandle void*
#endif // WINDOWS


typedef int (* LibraryFunction)();
 
class CommandLineInfo;
class CommandLineInfo {
public:
    static CommandLineInfo* CommandLineInfoSingleton;
    CommandLineInfo() {}
    std::string CommandLineString;
    std::string CommandLineExec;
    std::string CommandLineExecOnly;
    std::string CommandLineExecPath;
    std::vector<std::string> CommandLineItems;
    std::map<std::string, std::string> CommandLineArgs;
};
 
 

bool SetCommandLine(int argc, char* argv[]);
std::string GetCommandLine();
std::string GetCommandLinePath();
std::string GetCommandLineExecutable();
std::string GetCommandLineExecutableOnly();
uint32 GetCommandLineArgCount();
std::string GetCommandLineArg(uint16 n);
std::string GetCommandLineArg(const char* key);
bool HasCommandLineArg(const char* key, std::string& value);

class Library {
public:
    static std::string patchLibraryFilename(const char* filename, const char* path = NULL);
 
    Library();
    ~Library();
    bool load(const char* filename);
    LibraryFunction getFunction(const char* funcName);
private:
    DLLHandle handle;
};

Library* OpenLibrary(const char* libName);



const char* GetComputerName();

uint64 GetProcessMemoryUsage();
uint64 GetPeakProcessMemoryUsage();

uint16 GetCPUCount();

uint16 GetCPUArchitecture();

uint64 GetCPUSpeed();

uint64 GetSystemMemorySize();

bool GetSystemMemoryUsage(uint64 &totalRAM, uint64 &freeRAM);

const char* GetSystemArchitecture();

const char* GetSystemOSName();

bool GetSystemOSVersion(uint16& major, uint16& minor, uint16& build, char* text, uint16 textSize);

 
//bool RunOSTextCommand(const char* cmd, char* result, uint32 size);
 
//extern char OSLocalHostName[1024];
//extern char OSArchitectureName[1024];
//extern char OSName[1024];
 

//                         Sockets                          //

 
#ifdef WINDOWS
    bool CheckNetworkInit();
    #define CHECKNETWORKINIT utils::CheckNetworkInit();
#else
    #define CHECKNETWORKINIT
    #define WSAEWOULDBLOCK EAGAIN
#endif

bool GetSocketError(int wsaError, char* errorString, uint16 errorStringMaxSize, bool* isRecoverable);

int GetLastOSErrorNumber();
std::string GetLastOSErrorMessage();

bool WaitForSocketReadability(SOCKET s, int32 timeout);
bool WaitForSocketWriteability(SOCKET s, int32 timeout);

bool SetSocketNonBlockingMode(SOCKET s);
bool SetSocketBlockingMode(SOCKET s);

struct NetworkInterfaces {
    uint32 address;
    uint64 mac;
    char name[MAXKEYNAMELEN+1];
    char friendlyName[MAXKEYNAMELEN+1];
};

bool LookupIPAddress(const char* name, uint32& address);
bool LookupHostname(uint32 address, char* name, uint32 maxSize);
std::string GetLocalHostnameString();
bool GetLocalHostname(char* name, uint32 maxSize);
bool IsLocalIPAddress(const char* addr);
bool IsLocalIPAddress(uint32& address);
bool GetLocalIPAddress(uint32& address);
uint32* GetLocalIPAddresses(uint32& count);
bool GetLocalMACAddress(uint64& address);
uint64* GetLocalMACAddresses(uint32& count);
NetworkInterfaces* GetLocalInterfaces(uint32& count);
bool GetNextAvailableLocalPort(uint16 lastPort, uint16 &nextPort);
 
#define LOCALHOSTIP 16777343 // 127.0.0.1 as 32-bit dec
#define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
#define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
 
#define GETIPPORT(a) *(uint16*)((char*)&a + sizeof(uint32))
#define GETIPADDRESS(a) *(uint32*)&a
#define GETIPADDRESSPORT(a,p) (((uint32)a)) | (((uint64)p)<<32)
#define GETIPADDRESSQUAD(a) ((uint8*)&a)[0], ((uint8*)&a)[1], ((uint8*)&a)[2], ((uint8*)&a)[3]
#define GETIPADDRESSQUADPORT(a) ((uint8*)&a)[0], ((uint8*)&a)[1], ((uint8*)&a)[2], ((uint8*)&a)[3], ((uint16*)&a)[2]


 
#ifdef WINDOWS
    std::string GetRegistryKeyInfo(const char* key, HKEY &hKeyRoot);
    std::string GetRegistryParentKeyInfo(const char* key, HKEY &hKeyRoot);
#endif // WINDOWS
uint32 ReadRegistryDWORD(const char* key, const char* entry);
uint64 ReadRegistryQWORD(const char* key, const char* entry);
std::string ReadRegistryString(const char* key, const char* entry);
bool WriteRegistryDWORD(const char* key, const char* entry, uint32 value);
bool WriteRegistryQWORD(const char* key, const char* entry, uint64 value);
bool WriteRegistryString(const char* key, const char* entry, const char* value);
bool DeleteRegistryEntry(const char* key, const char* entry);
bool DeleteRegistryKey(const char* key);
bool DeleteRegistryTree(const char* root, const char* key);
//bool CopyRegistryKey(const char* key, const char* newName);
bool CopyRegistryTree(const char* entry, const char* newName);
//bool RenameRegistryKey(const char* key, const char* newName);
//bool RenameRegistryTree(const char* entry, const char* newName);
 
 



bool UtilsTest();
void PrintBinary(void* p, uint32 size, bool asInt, const char* title);
const char* stristr(const char *str, const char *substr, uint32 len = 0);
bool GetNextLineEnd(const char *str, uint32 size, uint32& len, uint32& crSize);
uint32 TextReplaceCharsInPlace(char* str, uint32 size, char find, char replace);
bool TextEndsWith(const char* str, const char* end, bool caseSensitive = true);
bool TextStartsWith(const char* str, const char* start, bool caseSensitive = true);
uint32 strcpyavail(char* dst, const char* src, uint32 maxlen, bool copyAvailable);
const char* laststrstr(const char* str1, const char* str2);
const char* laststristr(const char* str1, const char* str2);



uint32 StringSingleReplace(std::string& text, std::string key, std::string value, bool onlyFirst);
uint32 StringMultiReplace(std::string& text, std::map<std::string, std::string>& map, bool onlyFirst);
uint32 StringScriptReplace(std::string& text, std::string name, std::list< std::map<std::string, std::string> >& list);



std::string TextCapitalise(const char* text);
std::string TextUppercase(const char* text);
std::string TextLowercase(const char* text);
std::string TextIndent(const char* text, const char* indent);
std::string TextUnindent(const char* text);
std::string TextTrimQuotes(const char* text);
std::string TextTrim(const char* text);
std::multimap<std::string, std::string> TextMultiMapSplit(const char* text, const char* outersplit, const char* innersplit);
std::map<std::string, std::string> TextMapSplit(const char* text, const char* outersplit, const char* innersplit);
std::string TextJoin(std::vector<std::string> &list, const char* split, uint32 start = 0, uint32 count = 0);
std::string TextJoin(std::list<std::string> &list, const char* split, uint32 start = 0, uint32 count = 0);
std::string TextJoin(std::map<std::string, std::string> &map, const char* innersplit, const char* outersplit, bool keyquotes, bool valquotes);
std::string TextJoinJSON(std::map<std::string, std::string> &map);
std::string TextJoinXML(std::map<std::string, std::string> &map, const char* innernodeName, const char* outernodeName);
std::vector<std::string> TextListSplit(const char* text, const char* split, bool keepEmpty = true, bool autoTrim = false);
std::vector<std::string> TextListSplitLines(const char* text, bool keepEmpty = true, bool autoTrim = false);
std::vector<std::string> TextListBreakLines(const char* text, uint32 maxLineLength = 80);
std::string TextListBreakLines(const char* text, uint32 maxLineLength, const char* breakstr);
std::string TextVectorConcat(std::vector<std::string>, const char* sep, bool allowEmpty = true);
std::vector<std::string> TextCommandlineSplit(const char* cmdline);
char** SplitCommandline(const char* cmdline, int& argc);
wchar_t** SplitCommandlineW(const char* cmdline, int& argc);
bool DeleteCommandline(char** argv, int argc);



std::string StringFormat(const char *format, ...);
char* StringFormat(uint32& size, const char *format, ...);
bool StringFormatInto(char* dst, uint32 maxsize, const char *format, ...);
char* StringFormatVA(uint32& size, const char *format, va_list args);



unsigned char Hex2Char(const char* str);
unsigned char Dec2Char(const char* str);
int CRC32(const char *addr, uint32 length, int32 crc = 0);

int8 CompareFloats(float64 a, float64 b);



struct FileDetails {
    bool doesExist;
    bool isDirectory;
    bool isReadable;
    bool isWritable;
    bool isExecutable;
 
    uint32 size;
    uint64 lastAccessTime;
    uint64 lastModifyTime;
    uint64 creationTime;
};
 
#define NOSUCHFILE      0
#define STANDARDFILE    1
#define STANDARDDIR     2

std::string ReadAFileString(std::string filename);
char* ReadAFile(const char* filename, uint32& length, bool binary = false);
char* ReadAFile(const char* dir, const char* filename, uint32& length, bool binary = false);
bool WriteAFile(const char* filename, const char* data, uint32 length, bool binary = false);
bool WriteAFile(const char* dir, const char* filename, const char* data, uint32 length, bool binary = false);
bool AppendToAFile(const char* filename, const char* data, uint32 length, bool binary = false);
bool AppendToAFile(const char* dir, const char* filename, const char* data, uint32 length, bool binary = false);
char* GetFileList(const char* dirname, const char* ext, uint32& count, bool fullpath, uint32 maxNameLen = 256);
FileDetails GetFileDetails(const char* filename);
std::string GetFilePath(const char* filename);
const char* GetFileBasename(const char* filename);
std::string GetCurrentDir();
bool DeleteAFile(const char* filename, bool force);
bool DeleteAFile(const char* dir, const char* filename, bool force);
bool DeleteADir(const char* dirname, bool force);
bool CreateADir(const char* dirname);
bool DoesADirExist(const char* dirname);
bool DoesAFileExist(const char* filename);
bool DeleteFilesInADir(const char* dirname, bool force);
bool ChangeAFileAttr(const char* filename, bool read, bool write);
bool MoveAFile(const char* oldfilename, const char* newfilename, bool force = false);
bool MoveAFile(const char* olddir, const char* oldfilename, const char* newdir, const char* newfilename, bool force = false);
bool CopyAFile(const char* oldfilename, const char* newfilename, bool force = false);
bool CopyAFile(const char* olddir, const char* oldfilename, const char* newdir, const char* newfilename, bool force = false);



char* Int2Ascii(int64 value, char* result, uint16 size, uint8 base);
char* Uint2Ascii(uint64 value, char* result, uint16 size, uint8 base);
unsigned char* Ascii2UTF16LE(const char* ascii, uint32 len, uint32& size);

bool IsTextNumeric(const char* ascii, uint32 start = 0, uint32 end = 0);
int64 Ascii2Int64(const char* ascii, uint32 start = 0, uint32 end = 0);
uint64 Ascii2Uint64(const char* ascii, uint32 start = 0, uint32 end = 0);
uint64 AsciiHex2Uint64(const char* ascii, uint32 start = 0, uint32 end = 0);
int32 Ascii2Int32(const char* ascii, uint32 start = 0, uint32 end = 0);
uint32 Ascii2Uint32(const char* ascii, uint32 start = 0, uint32 end = 0);
uint32 AsciiHex2Uint32(const char* ascii, uint32 start = 0, uint32 end = 0);
float64 Ascii2Float64(const char* ascii, uint32 start = 0, uint32 end = 0);

char* TextSubstringCopy(const char* ascii, uint32 start, uint32 end);

std::string DecodeJSON(std::string str);
std::string EncodeJSON(std::string str);



bool SeedRandomValues(uint32 seedvalue = 0);
double RandomValue();
double RandomValue(double to);
double RandomValue(double from, double to);
double RandomValue(double from, double to, double interval);
int64 RandomInt(int64 from = 0, int64 to = 100);

std::string BytifySize(double val);
std::string BytifySizes(double val1, double val2);
std::string BytifyRate(double val);
std::string BytifyRates(double val1, double val2);

 // end of utils
 
} // namespace utils
} // namespace cmlabs
 
#endif //_UTILS_H_