// @(#)root/unix:$Id$ // Author: Fons Rademakers 15/09/95 /************************************************************************* * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ #ifndef ROOT_TUnixSystem #define ROOT_TUnixSystem ////////////////////////////////////////////////////////////////////////// // // // TUnixSystem // // // // Class providing an interface to the UNIX Operating System. // // // ////////////////////////////////////////////////////////////////////////// #include "TSystem.h" #include "TSysEvtHandler.h" #include "TTimer.h" #include typedef void (*SigHandler_t)(ESignals); class TUnixSystem : public TSystem { private: void FillWithCwd(char *cwd) const; protected: const char *GetLinkedLibraries() override; // static functions providing semi-low level interface to raw Unix static int UnixMakedir(const char *name); static void *UnixOpendir(const char *name); static const char *UnixGetdirentry(void *dir); static const char *UnixHomedirectory(const char *user = nullptr); static const char *UnixHomedirectory(const char *user, char *path, char *mydir); static Long64_t UnixNow(); static int UnixWaitchild(); static int UnixSetitimer(Long_t ms); static int UnixSelect(Int_t nfds, TFdSet *readready, TFdSet *writeready, Long_t timeout); static void UnixSignal(ESignals sig, SigHandler_t h); static const char *UnixSigname(ESignals sig); static void UnixSigAlarmInterruptsSyscalls(Bool_t set); static void UnixResetSignal(ESignals sig); static void UnixResetSignals(); static void UnixIgnoreSignal(ESignals sig, Bool_t ignore); static int UnixFilestat(const char *path, FileStat_t &buf); static int UnixFSstat(const char *path, Long_t *id, Long_t *bsize, Long_t *blocks, Long_t *bfree); static int UnixTcpConnect(const char *hostname, int port, int tcpwindowsize); static int UnixUdpConnect(const char *hostname, int port); static int UnixUnixConnect(int port); static int UnixUnixConnect(const char *path); static int UnixTcpService(int port, Bool_t reuse, int backlog, int tcpwindowsize, ESocketBindOption socketBindOption); static int UnixUdpService(int port, int backlog, ESocketBindOption socketBindOption); static int UnixUnixService(int port, int backlog); static int UnixUnixService(const char *sockpath, int backlog); static int UnixRecv(int sock, void *buf, int len, int flag); static int UnixSend(int sock, const void *buf, int len, int flag); public: TUnixSystem(); virtual ~TUnixSystem(); //---- Misc ------------------------------------------------- Bool_t Init() override; void SetProgname(const char *name) override; void SetDisplay() override; const char *GetError() override; const char *HostName() override; //---- EventLoop -------------------------------------------- void DispatchOneEvent(Bool_t pendingOnly = kFALSE) override; Int_t Select(TList *active, Long_t timeout) override; Int_t Select(TFileHandler *fh, Long_t timeout) override; //---- Handling of system events ---------------------------- void CheckChilds(); Bool_t CheckSignals(Bool_t sync); Bool_t CheckDescriptors(); void DispatchSignals(ESignals sig); void AddSignalHandler(TSignalHandler *sh) override; TSignalHandler *RemoveSignalHandler(TSignalHandler *sh) override; void ResetSignal(ESignals sig, Bool_t reset = kTRUE) override; void ResetSignals() override; void IgnoreSignal(ESignals sig, Bool_t ignore = kTRUE) override; void SigAlarmInterruptsSyscalls(Bool_t set) override; void AddFileHandler(TFileHandler *fh) override; TFileHandler *RemoveFileHandler(TFileHandler *fh) override; //---- Floating Point Exceptions Control -------------------- Int_t GetFPEMask() override; Int_t SetFPEMask(Int_t mask = kDefaultMask) override; //---- Time & Date ------------------------------------------ TTime Now() override; void AddTimer(TTimer *ti) override; TTimer *RemoveTimer(TTimer *ti) override; void ResetTimer(TTimer *ti) override; Bool_t DispatchTimers(Bool_t mode); void Sleep(UInt_t milliSec) override; //---- Processes -------------------------------------------- Int_t Exec(const char *shellcmd) override; FILE *OpenPipe(const char *shellcmd, const char *mode) override; int ClosePipe(FILE *pipe) override; int GetPid() override; void StackTrace() override; [[ noreturn ]] void Exit (int code, Bool_t mode = kTRUE) override; [[ noreturn ]] void Abort (int code = 0) override; //---- Directories ------------------------------------------ int MakeDirectory(const char *name) override; void *OpenDirectory(const char *name) override; void FreeDirectory(void *dirp) override; const char *GetDirEntry(void *dirp) override; Bool_t ChangeDirectory(const char *path) override; const char *WorkingDirectory() override; std::string GetWorkingDirectory() const override; const char *HomeDirectory(const char *userName = nullptr) override; std::string GetHomeDirectory(const char *userName = nullptr) const override; const char *TempDirectory() const override; FILE *TempFileName(TString &base, const char *dir = nullptr, const char *suffix = nullptr) override; //---- Paths & Files ---------------------------------------- const char *PrependPathName(const char *dir, TString& name) override; Bool_t ExpandPathName(TString &patbuf) override; char *ExpandPathName(const char *path) override; Bool_t AccessPathName(const char *path, EAccessMode mode = kFileExists) override; Bool_t IsPathLocal(const char *path) override; int CopyFile(const char *from, const char *to, Bool_t overwrite = kFALSE) override; int Rename(const char *from, const char *to) override; int Link(const char *from, const char *to) override; int Symlink(const char *from, const char *to) override; int Unlink(const char *name) override; int GetPathInfo(const char *path, FileStat_t &buf) override; int GetFsInfo(const char *path, Long_t *id, Long_t *bsize, Long_t *blocks, Long_t *bfree) override; int Chmod(const char *file, UInt_t mode) override; int Umask(Int_t mask) override; int Utime(const char *file, Long_t modtime, Long_t actime) override; const char *FindFile(const char *search, TString& file, EAccessMode mode = kFileExists) override; //---- Users & Groups --------------------------------------- Int_t GetUid(const char *user = nullptr) override; Int_t GetGid(const char *group = nullptr) override; Int_t GetEffectiveUid() override; Int_t GetEffectiveGid() override; UserGroup_t *GetUserInfo(Int_t uid) override; UserGroup_t *GetUserInfo(const char *user = nullptr) override; UserGroup_t *GetGroupInfo(Int_t gid) override; UserGroup_t *GetGroupInfo(const char *group = nullptr) override; //---- Environment Manipulation ----------------------------- const char *Getenv(const char *name) override; void Setenv(const char *name, const char *value) override; void Unsetenv(const char *name) override; //---- System Logging --------------------------------------- void Openlog(const char *name, Int_t options, ELogFacility facility) override; void Syslog(ELogLevel level, const char *mess) override; void Closelog() override; //---- Standard Output redirection -------------------------- Int_t RedirectOutput(const char *name, const char *mode = "a", RedirectHandle_t *h = nullptr) override; //---- Dynamic Loading -------------------------------------- void AddDynamicPath(const char *lib) override; const char *GetDynamicPath() override; void SetDynamicPath(const char *lib) override; const char *FindDynamicLibrary(TString &lib, Bool_t quiet = kFALSE) override; Func_t DynFindSymbol(const char *module, const char *entry) override; int Load(const char *module, const char *entry = "", Bool_t system = kFALSE) override; void Unload(const char *module) override; void ListSymbols(const char *module, const char *re = "") override; void ListLibraries(const char *regexp = "") override; //---- RPC -------------------------------------------------- TInetAddress GetHostByName(const char *server) override; TInetAddress GetPeerName(int sock) override; TInetAddress GetSockName(int sock) override; int GetServiceByName(const char *service) override; char *GetServiceByPort(int port) override; int ConnectService(const char *server, int port, int tcpwindowsize, const char *protocol = "tcp"); int OpenConnection(const char *server, int port, int tcpwindowsize = -1, const char *protocol = "tcp") override; int AnnounceTcpService(int port, Bool_t reuse, int backlog, int tcpwindowsize = -1, ESocketBindOption socketBindOption = ESocketBindOption::kInaddrAny) override; int AnnounceUdpService(int port, int backlog, ESocketBindOption socketBindOption = ESocketBindOption::kInaddrAny) override; int AnnounceUnixService(int port, int backlog) override; int AnnounceUnixService(const char *sockpath, int backlog) override; int AcceptConnection(int sock) override; void CloseConnection(int sock, Bool_t force = kFALSE) override; int RecvRaw(int sock, void *buffer, int length, int flag) override; int SendRaw(int sock, const void *buffer, int length, int flag) override; int RecvBuf(int sock, void *buffer, int length) override; int SendBuf(int sock, const void *buffer, int length) override; int SetSockOpt(int sock, int option, int val) override; int GetSockOpt(int sock, int option, int *val) override; //---- System, CPU and Memory info int GetSysInfo(SysInfo_t *info) const override; int GetCpuInfo(CpuInfo_t *info, Int_t sampleTime = 1000) const override; int GetMemInfo(MemInfo_t *info) const override; int GetProcInfo(ProcInfo_t *info) const override; ClassDefOverride(TUnixSystem,0) //Interface to Unix OS services }; #endif