// @(#)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. // // // ////////////////////////////////////////////////////////////////////////// #ifndef ROOT_TSystem #include "TSystem.h" #endif #ifndef ROOT_TSysEvtHandler #include "TSysEvtHandler.h" #endif #ifndef ROOT_TTimer #include "TTimer.h" #endif typedef void (*SigHandler_t)(ESignals); class TUnixSystem : public TSystem { protected: char *DynamicPathName(const char *lib, Bool_t quiet = kFALSE); const char *GetLinkedLibraries(); // 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 = 0); 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); static int UnixUdpService(int port, int backlog); 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); static void *FindDynLib(const char *lib); static int UnixDynLoad(const char *lib); static Func_t UnixDynFindSymbol(const char *lib, const char *entry); static void UnixDynUnload(const char *lib); static void UnixDynListSymbols(const char *lib, const char *re = ""); static void UnixDynListLibs(const char *lib = ""); public: TUnixSystem(); virtual ~TUnixSystem(); //---- Misc ------------------------------------------------- Bool_t Init(); void SetProgname(const char *name); void SetDisplay(); const char *GetError(); const char *HostName(); //---- EventLoop -------------------------------------------- void DispatchOneEvent(Bool_t pendingOnly = kFALSE); Int_t Select(TList *active, Long_t timeout); Int_t Select(TFileHandler *fh, Long_t timeout); //---- Handling of system events ---------------------------- void CheckChilds(); Bool_t CheckSignals(Bool_t sync); Bool_t CheckDescriptors(); void DispatchSignals(ESignals sig); void AddSignalHandler(TSignalHandler *sh); TSignalHandler *RemoveSignalHandler(TSignalHandler *sh); void ResetSignal(ESignals sig, Bool_t reset = kTRUE); void ResetSignals(); void IgnoreSignal(ESignals sig, Bool_t ignore = kTRUE); void SigAlarmInterruptsSyscalls(Bool_t set); void AddFileHandler(TFileHandler *fh); TFileHandler *RemoveFileHandler(TFileHandler *fh); //---- Floating Point Exceptions Control -------------------- Int_t GetFPEMask(); Int_t SetFPEMask(Int_t mask = kDefaultMask); //---- Time & Date ------------------------------------------ TTime Now(); void AddTimer(TTimer *ti); TTimer *RemoveTimer(TTimer *ti); void ResetTimer(TTimer *ti); Bool_t DispatchTimers(Bool_t mode); void Sleep(UInt_t milliSec); //---- Processes -------------------------------------------- Int_t Exec(const char *shellcmd); FILE *OpenPipe(const char *shellcmd, const char *mode); int ClosePipe(FILE *pipe); void Exit(int code, Bool_t mode = kTRUE); void Abort(int code = 0); int GetPid(); void StackTrace(); //---- Directories ------------------------------------------ int MakeDirectory(const char *name); void *OpenDirectory(const char *name); void FreeDirectory(void *dirp); const char *GetDirEntry(void *dirp); Bool_t ChangeDirectory(const char *path); const char *WorkingDirectory(); const char *HomeDirectory(const char *userName = 0); const char *TempDirectory() const; FILE *TempFileName(TString &base, const char *dir = 0); //---- Paths & Files ---------------------------------------- const char *PrependPathName(const char *dir, TString& name); Bool_t ExpandPathName(TString &patbuf); char *ExpandPathName(const char *path); Bool_t AccessPathName(const char *path, EAccessMode mode = kFileExists); Bool_t IsPathLocal(const char *path); int CopyFile(const char *from, const char *to, Bool_t overwrite = kFALSE); int Rename(const char *from, const char *to); int Link(const char *from, const char *to); int Symlink(const char *from, const char *to); int Unlink(const char *name); int GetPathInfo(const char *path, FileStat_t &buf); int GetFsInfo(const char *path, Long_t *id, Long_t *bsize, Long_t *blocks, Long_t *bfree); int Chmod(const char *file, UInt_t mode); int Umask(Int_t mask); int Utime(const char *file, Long_t modtime, Long_t actime); const char *FindFile(const char *search, TString& file, EAccessMode mode = kFileExists); //---- Users & Groups --------------------------------------- Int_t GetUid(const char *user = 0); Int_t GetGid(const char *group = 0); Int_t GetEffectiveUid(); Int_t GetEffectiveGid(); UserGroup_t *GetUserInfo(Int_t uid); UserGroup_t *GetUserInfo(const char *user = 0); UserGroup_t *GetGroupInfo(Int_t gid); UserGroup_t *GetGroupInfo(const char *group = 0); //---- Environment Manipulation ----------------------------- const char *Getenv(const char *name); void Setenv(const char *name, const char *value); void Unsetenv(const char *name); //---- System Logging --------------------------------------- void Openlog(const char *name, Int_t options, ELogFacility facility); void Syslog(ELogLevel level, const char *mess); void Closelog(); //---- Standard Output redirection -------------------------- Int_t RedirectOutput(const char *name, const char *mode = "a", RedirectHandle_t *h = 0); //---- Dynamic Loading -------------------------------------- void AddDynamicPath(const char *lib); const char *GetDynamicPath(); void SetDynamicPath(const char *lib); Func_t DynFindSymbol(const char *module, const char *entry); int Load(const char *module, const char *entry = "", Bool_t system = kFALSE); void Unload(const char *module); void ListSymbols(const char *module, const char *re = ""); void ListLibraries(const char *regexp = ""); //---- RPC -------------------------------------------------- TInetAddress GetHostByName(const char *server); TInetAddress GetPeerName(int sock); TInetAddress GetSockName(int sock); int GetServiceByName(const char *service); char *GetServiceByPort(int port); 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"); int AnnounceTcpService(int port, Bool_t reuse, int backlog, int tcpwindowsize = -1); int AnnounceUdpService(int port, int backlog); int AnnounceUnixService(int port, int backlog); int AnnounceUnixService(const char *sockpath, int backlog); int AcceptConnection(int sock); void CloseConnection(int sock, Bool_t force = kFALSE); int RecvRaw(int sock, void *buffer, int length, int flag); int SendRaw(int sock, const void *buffer, int length, int flag); int RecvBuf(int sock, void *buffer, int length); int SendBuf(int sock, const void *buffer, int length); int SetSockOpt(int sock, int option, int val); int GetSockOpt(int sock, int option, int *val); //---- System, CPU and Memory info int GetSysInfo(SysInfo_t *info) const; int GetCpuInfo(CpuInfo_t *info, Int_t sampleTime = 1000) const; int GetMemInfo(MemInfo_t *info) const; int GetProcInfo(ProcInfo_t *info) const; ClassDef(TUnixSystem,0) //Interface to Unix OS services }; #endif