// @(#)root/base:$Name: $:$Id: TSystem.cxx,v 1.61 2003/05/13 06:21:47 brun Exp $
// 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. *
*************************************************************************/
//////////////////////////////////////////////////////////////////////////
// //
// TSystem //
// //
// Abstract base class defining a generic interface to the underlying //
// Operating System. //
// This is not an ABC in the strict sense of the (C++) word. For //
// every member function their is an implementation (often not more //
// than a call to AbstractMethod() which prints a warning saying //
// that the method should be overridden in a derived class), which //
// allows a simple partial implementation for new OS'es. //
// //
//////////////////////////////////////////////////////////////////////////
#include <stdlib.h>
#include <errno.h>
#include "Riostream.h"
#include "TSystem.h"
#include "TApplication.h"
#include "TException.h"
#include "TROOT.h"
#include "TEnv.h"
#include "TBrowser.h"
#include "TString.h"
#include "TOrdCollection.h"
#include "TCint.h"
#include "TRegexp.h"
#include "TTimer.h"
#include "TObjString.h"
#include "TError.h"
#include "TPluginManager.h"
#include "TUrl.h"
#include "compiledata.h"
const char *gRootDir;
const char *gProgName;
const char *gProgPath;
TSystem *gSystem = 0;
TFileHandler *gXDisplay = 0; // Display server event handler, set in TGClient
ClassImp(TProcessEventTimer)
//______________________________________________________________________________
TProcessEventTimer::TProcessEventTimer(Long_t delay) : TTimer(delay, kFALSE)
{
// Create async event processor timer. Delay is in milliseconds.
gROOT->SetInterrupt(kFALSE);
TurnOn();
}
//______________________________________________________________________________
Bool_t TProcessEventTimer::ProcessEvents()
{
// Process events if timer did time out. Returns kTRUE if intterrupt
// flag is set (by hitting a key in the canvas or selecting the
// Interrupt menu item in canvas or some other action).
if (fTimeout) {
if (gSystem->ProcessEvents()) {
Remove();
return kTRUE;
} else {
Reset();
return kFALSE;
}
}
return kFALSE;
}
ClassImp(TSystem)
//______________________________________________________________________________
TSystem::TSystem(const char *name, const char *title) : TNamed(name, title)
{
// Create a new OS interface.
if (gSystem && name[0] != '-' && strcmp(name, "Generic"))
Error("TSystem", "only one instance of TSystem allowed");
fOnExitList = 0;
fSignalHandler = 0;
fFileHandler = 0;
fTimers = 0;
fCompiled = 0;
fHelpers = 0;
fInsideNotify = kFALSE;
}
//______________________________________________________________________________
TSystem::~TSystem()
{
// Delete the OS interface.
if (fOnExitList) {
fOnExitList->Delete();
SafeDelete(fOnExitList);
}
if (fSignalHandler) {
fSignalHandler->Delete();
SafeDelete(fSignalHandler);
}
if (fFileHandler) {
fFileHandler->Delete();
SafeDelete(fFileHandler);
}
if (fTimers) {
fTimers->Delete();
SafeDelete(fTimers);
}
if (fCompiled) {
fCompiled->Delete();
SafeDelete(fCompiled);
}
if (fHelpers) {
fHelpers->Delete();
SafeDelete(fHelpers);
}
if (gSystem == this)
gSystem = 0;
}
//______________________________________________________________________________
Bool_t TSystem::Init()
{
// Initialize the OS interface.
fNfd = 0;
fMaxrfd = 0;
fMaxwfd = 0;
fReadmask.Zero();
fWritemask.Zero();
fSigcnt = 0;
fLevel = 0;
fSignalHandler = new TOrdCollection;
fFileHandler = new TOrdCollection;
fTimers = new TOrdCollection;
fBuildArch = BUILD_ARCH;
fBuildNode = BUILD_NODE;
fFlagsDebug = CXXDEBUG;
fFlagsOpt = CXXOPT;
fIncludePath = INCLUDEPATH;
fLinkedLibs = LINKEDLIBS;
fSoExt = SOEXT;
fObjExt = OBJEXT;
fAclicMode = kDefault;
fMakeSharedLib = MAKESHAREDLIB;
fMakeExe = MAKEEXE;
fCompiled = new TOrdCollection;
if (!fName.CompareTo("Generic")) return kTRUE;
return kFALSE;
}
//______________________________________________________________________________
void TSystem::SetProgname(const char *name)
{
// Set the application name (from command line, argv[0]) and copy it in
// gProgName.
gProgName = StrDup(name);
}
//______________________________________________________________________________
void TSystem::SetDisplay()
{
// Set DISPLAY environment variable based on utmp entry. Only for UNIX.
}
//______________________________________________________________________________
const char *TSystem::GetError()
{
// Return system error string.
return Form("errno: %d", GetErrno());
}
//______________________________________________________________________________
Int_t TSystem::GetErrno()
{
// Static function returning system error number.
#ifdef _REENTRANT
return errno; // errno can be a macro if_REENTRANT is set
#else
#ifdef R__SOLARIS_CC50
return ::errno;
#else
return errno;
#endif
#endif
}
//______________________________________________________________________________
void TSystem::ResetErrno()
{
// Static function resetting system error number.
#ifdef _REENTRANT
errno = 0; // errno can be a macro if_REENTRANT is set
#else
#ifdef R__SOLARIS_CC50
::errno = 0;
#else
errno = 0;
#endif
#endif
}
//______________________________________________________________________________
void TSystem::RemoveOnExit(TObject *obj)
{
// Objects that should be deleted on exit of the OS interface.
if (fOnExitList == 0)
fOnExitList = new TOrdCollection;
if (fOnExitList->FindObject(obj) == 0)
fOnExitList->Add(obj);
}
//______________________________________________________________________________
const char *TSystem::HostName()
{
// Return the system's host name.
return "Local host";
}
//---- EventLoop ---------------------------------------------------------------
//______________________________________________________________________________
void TSystem::Run()
{
// System event loop.
fInControl = kTRUE;
fDone = kFALSE;
#ifdef R__EH
try {
#endif
RETRY {
while (!fDone) {
gApplication->StartIdleing();
InnerLoop();
gApplication->StopIdleing();
}
} ENDTRY;
#ifdef R__EH
}
catch (const char *str) {
printf("%s\n", str);
}
// handle every exception
catch (...) {
Warning("Run", "handle uncaugth exception, terminatingn");
}
#endif
fInControl = kFALSE;
}
//______________________________________________________________________________
void TSystem::ExitLoop()
{
// Exit from event loop.
fDone = kTRUE;
}
//______________________________________________________________________________
void TSystem::InnerLoop()
{
// Inner event loop.
fLevel++;
DispatchOneEvent();
fLevel--;
}
//______________________________________________________________________________
Bool_t TSystem::ProcessEvents()
{
// Process pending events (GUI, timers, sockets). Returns the result of
// TROOT::IsInterrupted(). The interrupt flag (TROOT::SetInterrupt())
// can be set during the handling of the events. This mechanism allows
// macros running in tight calculating loops to be interrupted by some
// GUI event (depending on the interval with which this method is
// called). For example hitting ctrl-c in a canvas will set the
// interrupt flag.
gROOT->SetInterrupt(kFALSE);
if (!gROOT->IsBatch())
DispatchOneEvent(kTRUE);
return gROOT->IsInterrupted();
}
//______________________________________________________________________________
void TSystem::DispatchOneEvent(Bool_t)
{
// Dispatch a single event.
AbstractMethod("DispatchOneEvent");
}
//______________________________________________________________________________
void TSystem::Sleep(UInt_t)
{
// Sleep milliSec milli seconds.
AbstractMethod("Sleep");
}
//---- handling of system events -----------------------------------------------
//______________________________________________________________________________
TTime TSystem::Now()
{
// Return current time.
return TTime(0);
}
//______________________________________________________________________________
void TSystem::AddTimer(TTimer *ti)
{
// Add timer to list of system timers.
if (ti && fTimers && (fTimers->FindObject(ti) == 0))
fTimers->Add(ti);
}
//______________________________________________________________________________
TTimer *TSystem::RemoveTimer(TTimer *ti)
{
// Remove timer from list of system timers. Returns removed timer or 0
// if timer was not active.
if (fTimers) {
TTimer *tr = (TTimer*) fTimers->Remove(ti);
return tr;
}
return 0;
}
//______________________________________________________________________________
Long_t TSystem::NextTimeOut(Bool_t mode)
{
// Time when next timer of mode (synchronous=kTRUE or
// asynchronous=kFALSE) will time-out (in ms).
if (!fTimers) return -1;
TIter next(fTimers);
TTimer *t;
Long_t tt, timeout = -1, tnow = Now();
while ((t = (TTimer *)next())) {
if (t->IsSync() == mode) {
tt = (long)t->GetAbsTime() - tnow;
if (tt < 0) tt = 0;
if (timeout == -1) timeout = tt;
if (tt < timeout) timeout = tt;
}
}
return timeout;
}
//______________________________________________________________________________
void TSystem::AddSignalHandler(TSignalHandler *h)
{
// Add a signal handler to list of system signal handlers.
if (h && fSignalHandler && (fSignalHandler->FindObject(h) == 0))
fSignalHandler->Add(h);
}
//______________________________________________________________________________
TSignalHandler *TSystem::RemoveSignalHandler(TSignalHandler *h)
{
// Remove a signal handler from list of signal handlers.
if (fSignalHandler) {
fSignalHandler->Remove(h);
return h;
}
return 0;
}
//______________________________________________________________________________
void TSystem::AddFileHandler(TFileHandler *h)
{
// Add a file handler to the list of system file handlers.
if (h && fFileHandler && (fFileHandler->FindObject(h) == 0))
fFileHandler->Add(h);
}
//______________________________________________________________________________
TFileHandler *TSystem::RemoveFileHandler(TFileHandler *h)
{
// Remove a file handler from the list of file handlers.
if (fFileHandler) {
fFileHandler->Remove(h);
return h;
}
return 0;
}
//______________________________________________________________________________
void TSystem::ResetSignal(ESignals /*sig*/, Bool_t /*reset*/)
{
// If reset is true reset the signal handler for the specified signal
// to the default handler, else restore previous behaviour.
AbstractMethod("ResetSignal");
}
//______________________________________________________________________________
void TSystem::IgnoreSignal(ESignals /*sig*/, Bool_t /*ignore*/)
{
// If ignore is true ignore the specified signal, else restore previous
// behaviour.
AbstractMethod("IgnoreSignal");
}
//______________________________________________________________________________
void TSystem::IgnoreInterrupt(Bool_t ignore)
{
// If ignore is true ignore the interrupt signal, else restore previous
// behaviour. Typically call ignore interrupt before writing to disk.
IgnoreSignal(kSigInterrupt, ignore);
}
//---- Processes ---------------------------------------------------------------
//______________________________________________________________________________
int TSystem::Exec(const char*)
{
// Execute a command.
AbstractMethod("Exec");
return -1;
}
//______________________________________________________________________________
FILE *TSystem::OpenPipe(const char*, const char*)
{
// Open a pipe.
AbstractMethod("OpenPipe");
return 0;
}
//______________________________________________________________________________
int TSystem::ClosePipe(FILE*)
{
// Close the pipe.
AbstractMethod("ClosePipe");
return -1;
}
//______________________________________________________________________________
int TSystem::GetPid()
{
// Get process id.
AbstractMethod("GetPid");
return -1;
}
//______________________________________________________________________________
void TSystem::Exit(int, Bool_t)
{
// Exit the application.
AbstractMethod("Exit");
}
//______________________________________________________________________________
void TSystem::Abort(int)
{
// Abort the application.
AbstractMethod("Abort");
}
//______________________________________________________________________________
void TSystem::StackTrace()
{
// Print a stack trace.
AbstractMethod("StackTrace");
}
//---- Directories -------------------------------------------------------------
//______________________________________________________________________________
TSystem *TSystem::FindHelper(const char *path, void *dirptr)
{
// Create helper TSystem to handle file and directory operations that
// might be special for remote file access, like via rfiod or rootd.
if (!fHelpers)
fHelpers = new TOrdCollection;
TPluginHandler *h;
TSystem *helper = 0;
TUrl url(path, kTRUE);
// look for existing helper
TIter next(fHelpers);
while ((helper = (TSystem*) next()))
if ((path && !strcmp(url.GetProtocol(), helper->GetName()) &&
helper->GetDirPtr() == 0) || helper->GetDirPtr() == dirptr)
return helper;
if (!path)
return 0;
// create new helper
if (!strncmp(url.GetProtocol(), "root", 4)) { // also roots and rootk
} else if (!strcmp(url.GetProtocol(), "http")) {
} else if ((h = gROOT->GetPluginManager()->FindHandler("TSystem", path))) {
if (h->LoadPlugin() == -1)
return 0;
helper = (TSystem*) h->ExecPlugin(0);
}
if (helper)
fHelpers->Add(helper);
return helper;
}
//______________________________________________________________________________
int TSystem::MakeDirectory(const char*)
{
// Make a directory. Returns 0 in case of success and
// -1 if the directory could not be created.
AbstractMethod("MakeDirectory");
return 0;
}
//______________________________________________________________________________
void *TSystem::OpenDirectory(const char*)
{
// Open a directory. Returns 0 if directory does not exist.
AbstractMethod("OpenDirectory");
return 0;
}
//______________________________________________________________________________
void TSystem::FreeDirectory(void*)
{
// Free a directory.
AbstractMethod("FreeDirectory");
}
//______________________________________________________________________________
const char *TSystem::GetDirEntry(void*)
{
// Get a directory entry. Returns 0 if no more entries.
AbstractMethod("GetDirEntry");
return 0;
}
//______________________________________________________________________________
Bool_t TSystem::ChangeDirectory(const char*)
{
// Change directory.
AbstractMethod("ChangeDirectory");
return kFALSE;
}
//______________________________________________________________________________
const char *TSystem::WorkingDirectory()
{
// Return working directory.
return 0;
}
//______________________________________________________________________________
const char *TSystem::HomeDirectory(const char*)
{
// Return the user's home directory.
return 0;
}
//______________________________________________________________________________
int TSystem::mkdir(const char *name, Bool_t recursive)
{
// Make a file system directory. Returns 0 in case of success and
// -1 if the directory could not be created.
// Returns -1 if the directory exist.
// If 'recursive' is true, makes parent directories as needed,
// or returns 0 if the directory already exist.
if (recursive) {
TString dirname = DirName(name);
if (AccessPathName(dirname, kFileExists)) {
int res = mkdir(dirname, true);
if (res) return res;
}
if (!AccessPathName(name, kFileExists)) {
return 0;
}
}
return MakeDirectory(name);
}
//---- Paths & Files -----------------------------------------------------------
//______________________________________________________________________________
const char *TSystem::BaseName(const char *name)
{
// Base name of a file name. Base name of /user/root is root.
if (name) {
if (name[0] == '/' && name[1] == '0')
return name;
char *cp;
if ((cp = (char*)strrchr(name, '/')))
return ++cp;
return name;
}
Error("BaseName", "name = 0");
return 0;
}
//______________________________________________________________________________
Bool_t TSystem::IsAbsoluteFileName(const char *dir)
{
// Return true if dir is an absolute pathname.
if (dir)
return dir[0] == '/';
return kFALSE;
}
//______________________________________________________________________________
const char *TSystem::DirName(const char *pathname)
{
// Return the directory name in pathname. DirName of /user/root is /user.
if (pathname && strchr(pathname, '/')) {
static char buf[1000];
strcpy(buf, pathname);
char *r = strrchr(buf, '/');
if (r != buf)
*r = '0';
else
*(r+1) = '0';
return buf;
}
return WorkingDirectory();
}
//______________________________________________________________________________
const char *TSystem::UnixPathName(const char *name)
{
// Convert from a Unix pathname to a local pathname. E.g. from /user/root to user\root.
return name;
}
//______________________________________________________________________________
char *TSystem::ConcatFileName(const char *, const char *)
{
// Concatenate a directory and a file name.
AbstractMethod("ConcatFileName");
return 0;
}
//---- Paths & Files -----------------------------------------------------------
//______________________________________________________________________________
const char *TSystem::ExpandFileName(const char *fname)
{
// Expand a pathname getting rid of special shell characters like ~.$, etc.
// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
// environment variables in a pathname. If compatibility is not an issue
// you can use on Unix directly $XXX. This is a protected function called
// from the OS specific system classes, like TUnixSystem and TWinNTSystem.
const int kBufSize = 4096;
int n, ier, iter, lx, ncopy;
char *inp, *out, *c, *b, *e, *x, *t, buff[kBufSize*3];
const char *p;
static char xname[kBufSize];
iter = 0; xname[0] = 0; inp = buff + kBufSize; out = inp + kBufSize;
inp[-1] = ' '; inp[0] = 0; out[-1] = ' ';
c = (char *)fname + strspn(fname, " t\fr");
//VP if (isalnum(c[0])) { strcpy(inp, WorkingDirectory()); strcat(inp, "/"); } // add $cwd
strcat(inp, c);
again:
iter++; c = inp; ier = 0;
x = out; x[0] = 0;
for ( ; c[0]; c++) {
p = 0; e = 0;
if (c[0] == '~' && c[1] == '/') { // ~/ case
p = HomeDirectory(); e = c + 1; if (!p) ier++;
}
if (p) { // we have smth to copy
strcpy(x, p); x += strlen(p); c = e-1; continue;
}
p = 0;
if (c[0] == '~' && c[1] != '/') { // ~user case
n = strcspn(c+1, "/ "); buff[0] = 0; strncat(buff, c+1, n);
p = HomeDirectory(buff); e = c+1+n;
}
if (p) { // we have smth to copy
strcpy(x,p); x += strlen(p); c = e-1; continue;
}
p = 0;
if (c[0] == '.' && c[1] == '/' && c[-1] == ' ') { // $cwd
p = strcpy(buff, WorkingDirectory()); e = c + 1; if (!p) ier++;
}
if (p) { // we have smth to copy */
strcpy(x,p); x += strlen(p); c = e-1; continue;
}
if (c[0] != '$') { // not $, simple copy
x++[0] = c[0];
} else { // we have a $
b = c+1;
if (c[1] == '(') b++;
if (c[1] == '{') b++;
for (e = b; isalnum(e[0]) || e[0] == '_'; e++) ;
buff[0] = 0; strncat(buff, b, e-b);
p = Getenv(buff);
if (!p) { // too bad, try UPPER case
for (t = buff; (t[0] = toupper(t[0])); t++) ;
p = Getenv(buff);
}
if (!p) { // too bad, try Lower case
for (t = buff; (t[0] = tolower(t[0])); t++) ;
p = Getenv(buff);
}
if (!p && !strcmp(buff, "cwd")) { // it is $cwd
p = strcpy(buff, WorkingDirectory());
}
if (!p) { // too bad, nothing can help
ier++; x++[0] = c[0];
} else { // It is OK, copy result
strcpy(x,p); x += strlen(p); c = (b==c+1) ? e-1 : e;
}
}
}
x[0] = 0; lx = x - out;
if (ier && iter < 3) { strcpy(inp,out); goto again; }
ncopy = (lx >= kBufSize) ? kBufSize-1 : lx;
xname[0] = 0; strncat(xname,out,ncopy);
if (ier || ncopy != lx)
Error("ExpandFileName", "input: %s, output: %s", fname, xname);
return xname;
}
//______________________________________________________________________________
Bool_t TSystem::ExpandPathName(TString&)
{
// Expand a pathname getting rid of special shell characaters like ~.$, etc.
// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
// environment variables in a pathname. If compatibility is not an issue
// you can use on Unix directly $XXX.
return kFALSE;
}
//______________________________________________________________________________
char *TSystem::ExpandPathName(const char *)
{
// Expand a pathname getting rid of special shell characaters like ~.$, etc.
// For Unix/Win32 compatibility use $(XXX) instead of $XXX when using
// environment variables in a pathname. If compatibility is not an issue
// you can use on Unix directly $XXX. The user must delete returned string.
return 0;
}
//______________________________________________________________________________
Bool_t TSystem::AccessPathName(const char *, EAccessMode)
{
// Returns FALSE if one can access a file using the specified access mode.
// Attention, bizarre convention of return value!!
return kFALSE;
}
//______________________________________________________________________________
int TSystem::CopyFile(const char *, const char *, Bool_t)
{
// Copy a file. If overwrite is true and file already exists the
// file will be overwritten. Returns 0 when successful, -1 in case
// of failure, -2 in case the file already exists and overwrite was false.
AbstractMethod("CopyFile");
return -1;
}
//______________________________________________________________________________
int TSystem::Rename(const char *, const char *)
{
// Rename a file.
AbstractMethod("Rename");
return -1;
}
//______________________________________________________________________________
int TSystem::Link(const char *, const char *)
{
// Create a link from file1 to file2.
AbstractMethod("Link");
return -1;
}
//______________________________________________________________________________
int TSystem::Symlink(const char *, const char *)
{
// Create a symbolic link from file1 to file2.
AbstractMethod("Symlink");
return -1;
}
//______________________________________________________________________________
int TSystem::Unlink(const char *)
{
// Unlink, i.e. remove, a file.
AbstractMethod("Unlink");
return -1;
}
//______________________________________________________________________________
int TSystem::GetPathInfo(const char*, Long_t*, Long_t*, Long_t*, Long_t*)
{
// Get info about a file: id, size, flags, modification time.
AbstractMethod("GetPathInfo");
return 1;
}
//______________________________________________________________________________
int TSystem::GetFsInfo(const char*, Long_t*, Long_t*, Long_t*, Long_t*)
{
// Get info about a file system: fs type, block size, number of blocks,
// number of free blocks.
AbstractMethod("GetFsInfo");
return 1;
}
//______________________________________________________________________________
int TSystem::Umask(Int_t)
{
// Set the process file creation mode mask.
AbstractMethod("Umask");
return -1;
}
//______________________________________________________________________________
int TSystem::Utime(const char *, Long_t, Long_t)
{
// Set the a files modification and access times. If actime = 0 it will be
// set to the modtime. Returns 0 on success and -1 in case of error.
AbstractMethod("Utime");
return -1;
}
//______________________________________________________________________________
char *TSystem::Which(const char *, const char *, EAccessMode)
{
// Find location of file in a search path. User must delete returned string.
// Returns 0 in case file is not found.
AbstractMethod("Which");
return 0;
}
//---- environment manipulation ------------------------------------------------
//______________________________________________________________________________
void TSystem::Setenv(const char*, const char*)
{
// Set environment variable.
AbstractMethod("Setenv");
}
//______________________________________________________________________________
void TSystem::Unsetenv(const char *name)
{
// Unset environment variable.
Setenv(name, "");
}
//______________________________________________________________________________
const char *TSystem::Getenv(const char*)
{
// Get environment variable.
AbstractMethod("Getenv");
return 0;
}
//---- System Logging ----------------------------------------------------------
//______________________________________________________________________________
void TSystem::Openlog(const char *, Int_t, ELogFacility)
{
// Open connection to system log daemon. For the use of the options and
// facility see the Unix openlog man page.
AbstractMethod("Openlog");
}
//______________________________________________________________________________
void TSystem::Syslog(ELogLevel, const char *)
{
// Send mess to syslog daemon. Level is the logging level and mess the
// message that will be written on the log.
AbstractMethod("Syslog");
}
//______________________________________________________________________________
void TSystem::Closelog()
{
// Close connection to system log daemon.
AbstractMethod("Closelog");
}
//---- Dynamic Loading ---------------------------------------------------------
//______________________________________________________________________________
int TSystem::Load(const char *module, const char *entry, Bool_t system)
{
// Load a shared library. Returns 0 on successful loading, 1 in
// case lib was already loaded and -1 in case lib does not exist
// or in case of error. When entry is specified the loaded lib is
// search for this entry point (return -1 when entry does not exist,
// 0 otherwise). When the system flag is kTRUE, the library is consisdered
// a permanent systen library that should not be unloaded during the
// course of the session.
#ifdef NOCINT
AbstractMethod("Load");
return 0;
#else
char *path;
int i = -1;
if ((path = DynamicPathName(module))) {
i = gInterpreter->Load(path,system);
delete [] path;
}
if (!entry || !strlen(entry)) return i;
Func_t f = DynFindSymbol(module, entry);
if (f) return 0;
return -1;
#endif
}
//______________________________________________________________________________
char *TSystem::DynamicPathName(const char *, Bool_t)
{
AbstractMethod("DynamicPathName");
return 0;
}
//______________________________________________________________________________
Func_t TSystem::DynFindSymbol(const char * /*lib*/, const char *entry)
{
// Find specific entry point in specified library. Specify "*" for lib
// to search in all libraries.
#ifdef NOCINT
AbstractMethod("DynFindSymbol");
return 0;
#else
return G__findsym(entry);
#endif
}
//______________________________________________________________________________
void TSystem::Unload(const char *module)
{
// Unload a shared library.
#ifdef NOCINT
AbstractMethod("UnLoad");
#else
char *path;
if ((path = DynamicPathName(module))) {
G__unloadfile(path);
delete [] path;
}
#endif
}
//______________________________________________________________________________
void TSystem::ListSymbols(const char *, const char *)
{
// List symbols in a shared library.
AbstractMethod("ListSymbols");
}
//______________________________________________________________________________
void TSystem::ListLibraries(const char *regexp)
{
// List all loaded shared libraries.
TString libs = GetLibraries(regexp);
TRegexp separator("[^ \t\s]+");
TString s;
Ssiz_t start = 0, index = 0, end = 0;
int i = 0;
Printf("");
Printf("Loaded shared libraries");
Printf("=======================");
while ((start < libs.Length()) && (index != kNPOS)) {
index = libs.Index(separator, &end, start);
if (index >= 0) {
s = libs(index, end);
if (s.BeginsWith("-")) {
if (s.BeginsWith("-l")) {
Printf("%s", s.Data());
i++;
}
} else {
Printf("%s", s.Data());
i++;
}
}
start += end+1;
}
Printf("-----------------------");
Printf("%d libraries loaded", i);
Printf("=======================");
}
//______________________________________________________________________________
const char *TSystem::GetLibraries(const char *regexp, const char *options,
Bool_t isRegexp)
{
// Return a space separated list of loaded shared libraries.
// This list is of a format suitable for a linker, i.e it may contain
// -Lpathname and/or -lNameOfLib.
// Option can be any of:
// S: shared libraries loaded at the start of the executable, because
// they were specified on the link line.
// D: shared libraries dynamically loaded after the start of the program.
fListLibs = "";
TString libs = "";
TString opt = options;
if ((opt.Length()==0) || (opt.First('D')!=kNPOS))
libs += gInterpreter->GetSharedLibs();
if ((opt.Length()==0) || (opt.First('S')!=kNPOS)) {
if (!libs.IsNull()) libs.Append(" ");
libs.Append(fLinkedLibs);
}
// Select according to regexp
if (regexp!=0 && strlen(regexp)!=0) {
TRegexp separator("[^ \t\s]+");
TRegexp user_re(regexp, kTRUE);
TString s;
Ssiz_t start, index, end;
start = index = end = 0;
while ((start < libs.Length()) && (index != kNPOS)) {
index = libs.Index(separator,&end,start);
if (index >= 0) {
s = libs(index,end);
if ((isRegexp && s.Index(user_re) != kNPOS) ||
(!isRegexp && s.Index(regexp) != kNPOS)) {
if (!fListLibs.IsNull())
fListLibs.Append(" ");
fListLibs.Append(s);
}
}
start += end+1;
}
} else
fListLibs = libs;
return fListLibs;
}
//---- RPC ---------------------------------------------------------------------
//______________________________________________________________________________
TInetAddress TSystem::GetHostByName(const char *)
{
// Get Internet Protocol (IP) address of host.
AbstractMethod("GetHostByName");
return TInetAddress();
}
//______________________________________________________________________________
TInetAddress TSystem::GetPeerName(int)
{
// Get Internet Protocol (IP) address of remote host and port #.
AbstractMethod("GetPeerName");
return TInetAddress();
}
//______________________________________________________________________________
TInetAddress TSystem::GetSockName(int)
{
// Get Internet Protocol (IP) address of host and port #.
AbstractMethod("GetSockName");
return TInetAddress();
}
//______________________________________________________________________________
int TSystem::GetServiceByName(const char *)
{
// Get port # of internet service.
AbstractMethod("GetServiceByName");
return -1;
}
//______________________________________________________________________________
char *TSystem::GetServiceByPort(int)
{
// Get name of internet service.
AbstractMethod("GetServiceByPort");
return 0;
}
//______________________________________________________________________________
int TSystem::OpenConnection(const char*, int, int)
{
// Open a connection to another host.
AbstractMethod("OpenConnection");
return -1;
}
//______________________________________________________________________________
int TSystem::AnnounceTcpService(int, Bool_t, int, int)
{
// Announce TCP/IP service.
AbstractMethod("AnnounceTcpService");
return -1;
}
//______________________________________________________________________________
int TSystem::AnnounceUnixService(int, int)
{
// Announce unix domain service.
AbstractMethod("AnnounceUnixService");
return -1;
}
//______________________________________________________________________________
int TSystem::AcceptConnection(int)
{
// Accept a connection.
AbstractMethod("AcceptConnection");
return -1;
}
//______________________________________________________________________________
void TSystem::CloseConnection(int, Bool_t)
{
// Close socket connection.
AbstractMethod("CloseConnection");
}
//______________________________________________________________________________
int TSystem::RecvRaw(int, void *, int, int)
{
// Receive exactly length bytes into buffer. Use opt to receive out-of-band
// data or to have a peek at what is in the buffer (see TSocket).
AbstractMethod("RecvRaw");
return -1;
}
//______________________________________________________________________________
int TSystem::SendRaw(int, const void *, int, int)
{
// Send exactly length bytes from buffer. Use opt to send out-of-band
// data (see TSocket).
AbstractMethod("SendRaw");
return -1;
}
//______________________________________________________________________________
int TSystem::RecvBuf(int, void *, int)
{
// Receive a buffer headed by a length indicator.
AbstractMethod("RecvBuf");
return -1;
}
//______________________________________________________________________________
int TSystem::SendBuf(int, const void *, int)
{
// Send a buffer headed by a length indicator.
AbstractMethod("SendBuf");
return -1;
}
//______________________________________________________________________________
int TSystem::SetSockOpt(int, int, int)
{
// Set socket option.
AbstractMethod("SetSockOpt");
return -1;
}
//______________________________________________________________________________
int TSystem::GetSockOpt(int, int, int*)
{
// Get socket option.
AbstractMethod("GetSockOpt");
return -1;
}
//---- Script Compiler ---------------------------------------------------------
//______________________________________________________________________________
int TSystem::CompileMacro(const char *filename, Option_t * opt,
const char *library_specified,
const char *build_dir)
{
// This method compiles and loads a shared library containing
// the code from the file "filename".
//
// The possible options are:
// k : keep the shared library after the session end.
// f : force recompilation.
// g : compile with debug symbol
// O : optimized the code (ignore if 'd' is specified)
//
// If library_specified is specified, CompileMacro generates the file
// "library_specified".soext where soext is the shared library extension for
// the current platform.
//
// If build_dir is specified, it is used as an alternative 'root' for the
// generation of the shared library. The library is stored in a sub-directories
// of 'build_dir' including the full pathname of the script. See also
// TSystem::SetBuildDir
//
// If library_specified is not specified, CompileMacro generate a default name
// for library by taking the name of the file "filename" but replacing the
// dot before the extension by an underscore and by adding the shared
// library extension for the current platform.
// For example on most platform, hsimple.cxx will generate hsimple_cxx.so
//
// It uses the directive fMakeSharedLibs to create a shared library.
// If loading the shared library fails, it tries to output a list of missing
// symbols by creating an executable (on some platforms like OSF, this does
// not HAVE to be an executable) containing the script. It uses the
// directive fMakeExe to do so.
// For both directives, before passing them to TSystem::Exec, it expands the
// variables $SourceFiles, $SharedLib, $LibName, $IncludePath, $LinkedLibs,
// $ExeName and $ObjectFiles. See SetMakeSharedLib() for more information on
// those variables.
//
// This method is used to implement the following feature:
//
// Synopsis:
//
// The purpose of this addition is to allow the user to use an external
// compiler to create a shared library from its C++ macro (scripts).
// Currently in order to execute a script, a user has to type at the root
// prompt
//
// .X myfunc.C(arg1,arg2)
//
// We allow him to type:
//
// .X myfunc.C++(arg1,arg2)
// or
// .X myfunc.C+(arg1,arg2)
//
// In which case an external compiler will be called to create a shared
// library. This shared library will then be loaded and the function
// myfunc will be called with the two arguments. With '++' the shared library
// is always recompiled. With '+' the shared library is recompiled only
// if it does not exist yet or the macro file is newer than the shared
// library.
//
// HOWEVER, CompileMacro currently does NOT detect if any of the file that
// are included by the macro file has been changed!!!
//
// Of course the + and ++ notation is supported in similar way for .x and .L.
//
// Through the function TSystem::SetMakeSharedLib(), the user will be able to
// indicate, with shell commands, how to build a shared library (a good
// default will be provided). The most common change, namely where to find
// header files, will be available through the function
// TSystem::SetIncludePath().
// A good default will be provided so that a typical user session should be at
// most:
//
// root[1] gSystem->SetIncludePath("-I$ROOTSYS/include
// -I$HOME/mypackage/include");
// root[2] .x myfunc.C++(10,20);
//
// The user may sometimes try to compile a script before it has loaded all the
// needed shared libraries. In this case we want to be helpfull and output a
// list of the unresolved symbols. So if the loading of the created shared
// library fails, we will try to build a executable that contains the
// script. The linker should then output a list of missing symbols.
//
// To support this we provide a TSystem::SetMakeExe() function, that sets the
// directive telling how to create an executable. The loader will need
// to be informed of all the libraries available. The information about
// the libraries that has been loaded by .L and TSystem::Load() is accesible
// to the script compiler. However, the information about
// the libraries that have been selected at link time by the application
// builder (like the root libraries for root.exe) are not available and need
// to be explictly listed in fLinkedLibs (either by default or by a call to
// TSystem::SetLinkedLibs()).
//
// To simplify customization we could also add to the .rootrc support for the
// variables
//
// Unix.*.Root.IncludePath: -I$ROOTSYS/include
// WinNT.*.Root.IncludePath: -I%ROOTSYS%/include
//
// Unix.*.Root.LinkedLibs: -L$ROOTSYS/lib -lBase ....
// WinNT.*.Root.LinkedLibs: %ROOTSYS%/lib/*.lib msvcrt.lib ....
//
// And also support for MakeSharedLibs() and MakeExe().
//
// (the ... have to be replaced by the actual values and are here only to
// shorten this comment).
// ======= Analyze the options
Bool_t keep = kFALSE;
Bool_t recompile = kFALSE;
EAclicMode mode = fAclicMode;
if (opt) {
keep = (strchr(opt,'k')!=0);
recompile = (strchr(opt,'f')!=0);
if (strchr(opt,'O')!=0) {
mode = kOpt;
}
if (strchr(opt,'g')!=0) {
mode = kDebug;
}
}
if (mode==kDefault) {
TString rootbuild = ROOTBUILD;
if (rootbuild.Index("debug",0,TString::kIgnoreCase)==kNPOS) {
mode=kOpt;
} else {
mode=kDebug;
}
}
// if non-zero, build_loc indicates where to build the shared library.
TString build_loc = GetBuildDir();
if (build_dir && strlen(build_dir)) build_loc = build_dir;
if (build_loc.Length() && (!IsAbsoluteFileName(build_loc)) ) {
build_loc = ConcatFileName( WorkingDirectory(), build_loc );
}
// ======= Get the right file names for the dictionnary and the shared library
TString library = filename;
ExpandPathName( library );
if (! IsAbsoluteFileName(library) ) {
library = ConcatFileName( WorkingDirectory(), library );
}
TString filename_fullpath = library;
Ssiz_t dot_pos = library.Last('.');
TString extension = library;
extension.Replace( 0, dot_pos+1, 0 , 0);
TString libname_noext = library;
if (dot_pos>=0) libname_noext.Remove( dot_pos );
// Extension of shared library is platform dependent!!
library.Replace( dot_pos, library.Length()-dot_pos,
TString("_") + extension + "." + fSoExt );
TString libname ( BaseName( libname_noext ) );
libname.Append("_").Append(extension);
TString file_location( DirName( library ) ); // Location of the script.
if (library_specified && strlen(library_specified) ) {
// Use the specified name instead of the default
libname = BaseName( library_specified );
library = library_specified;
ExpandPathName( library );
if (! IsAbsoluteFileName(library) ) {
library = ConcatFileName( WorkingDirectory(), library );
}
library = TString(library) + "." + fSoExt;
}
TString lib_location( DirName( library ) );
if (build_loc.Length()==0) {
build_loc = lib_location;
} else {
library = ConcatFileName( build_loc, library);
build_loc = ConcatFileName( build_loc, lib_location);
if (gSystem->AccessPathName(build_loc,kWritePermission)) mkdir(build_loc, true);
}
// ======= Check if the library need to loaded or compiled
if ( gInterpreter->IsLoaded(filename) ) {
// the script has already been loaded in interpreted mode
// Let's warn the user and unload it.
::Warning("ACLiC","script has already been loaded in interpreted mode");
::Warning("ACLiC","unloading %s and compiling it", filename);
if ( G__unloadfile( (char*) filename ) != 0 ) {
// We can not unload it.
return(G__LOADFILE_FAILURE);
}
}
// Calculate the -I lines
TString includes = GetIncludePath();
{
// I need to replace the -Isomerelativepath by -I../ (or -I.. on NT)
TRegexp rel_inc("-I[^/\$%-][^:-]+");
Int_t len,pos;
pos = rel_inc.Index(includes,&len);
while( len != 0 ) {
TString sub = includes(pos,len);
sub.Remove(0,2);
sub = ConcatFileName( WorkingDirectory(), sub );
sub.Prepend("-I");
sub.Append(" ");
includes.Replace(pos,len,sub);
pos = rel_inc.Index(includes,&len);
}
}
includes += " -I" + build_loc;
includes += " -I";
includes += WorkingDirectory();
if (gEnv) {
TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
includes.Append(" ").Append(fromConfig).Append(" ");
}
// Extract the -D for the dependency generation.
TString defines = " ";
{
TString cmd = GetMakeSharedLib();
TRegexp rel_def("-D[^\s\t\n\r]*");
Int_t len,pos;
pos = rel_def.Index(cmd,&len);
while( len != 0 ) {
defines += cmd(pos,len);
defines += " ";
pos = rel_def.Index(cmd,&len,pos+1);
}
}
// Calculate the libraries for linking:
TString linkLibraries;
/*
this is intentionally disable until it can become usefull
if (gEnv) {
linkLibraries = gEnv->GetValue("ACLiC.ACLiC.Libraries","");
linkLibraries.Prepend(" ");
}
*/
linkLibraries.Prepend(GetLibraries("","SDL"));
// ======= Figure out a temporary directory.
const char *tempDirs = gSystem->Getenv("TEMP");
if (!tempDirs) tempDirs = gSystem->Getenv("TEMPDIR");
if (!tempDirs) tempDirs = gSystem->Getenv("TEMP_DIR");
if (!tempDirs) tempDirs = gSystem->Getenv("TMP");
if (!tempDirs) tempDirs = gSystem->Getenv("TMPDIR");
if (!tempDirs) tempDirs = gSystem->Getenv("TMP_DIR");
#ifdef R__WIN32
if (!tempDirs) tempDirs = "c:\\";
#else
if (!tempDirs) tempDirs = "/tmp";
#endif
TString emergency_loc = tempDirs;
Bool_t canWrite = !gSystem->AccessPathName(build_loc,kWritePermission);
Bool_t modified = kFALSE;
if ( !recompile ) {
// Generate the dependency filename
TString depdir = build_loc;
if (!canWrite) depdir = emergency_loc;
TString depfilename = ConcatFileName(depdir, BaseName(libname_noext));
depfilename += "_" + extension + ".d";
TString bakdepfilename = depfilename + ".bak";
Long_t lib_time, file_time;
#ifndef WIN32
const char * stderrfile = "/dev/null";
#else
TString stderrfile = ConcatFileName(build_loc,"stderr.tmp");
#endif
if ( (gSystem->GetPathInfo( library, 0, 0, 0, &lib_time ) != 0)
||
(gSystem->GetPathInfo( filename, 0, 0, 0, &file_time ) == 0
&& ( lib_time < file_time ) )
) {
// the library does not exist and is older than the script.
recompile = kTRUE;
} else {
// If the library exist and the dependency file is either older or
// does not exist we regenerate it
Bool_t needDependencies;
if ( gSystem->GetPathInfo( depfilename, 0, 0, 0, &file_time ) == 0 ) {
needDependencies = ( file_time < lib_time );
} else {
needDependencies = true;
}
if (needDependencies) {
gSystem->Unlink(depfilename);
// Generate the dependency via standard output, not searching the
// standard include directories,
TString touch = "echo > ";
touch += depfilename;
TString builddep = "rmkdepend -f";
builddep += depfilename;
builddep += " -Y -- ";
builddep += " -I$ROOTSYS/include "; // cflags
builddep += includes;
builddep += defines;
builddep += " -- ";
builddep += filename;
builddep += " > ";
builddep += stderrfile;
builddep += " 2>&1 ";
if (gDebug > 4) ::Info("ACLiC",builddep.Data());
Int_t depbuilt = !gSystem->Exec(touch);
if (depbuilt) depbuilt = !gSystem->Exec(builddep);
if (!depbuilt) {
::Warning("ACLiC","Failed to generate the dependency file for %s",
library.Data());
} else {
#ifdef WIN32
gSystem->Unlink(stderrfile);
#endif
gSystem->Unlink(bakdepfilename);
}
}
// Parse the depdency file
FILE * depfile = fopen(depfilename.Data(),"r");
if (depfile==0) {
// there is no acessible dependency file, let's assume the library has been
// modified
modified = kTRUE;
recompile = kTRUE;
} else {
Int_t sz = 256;
char *line = new char[sz];
line[0] = 0;
char c;
Int_t current = 0;
Int_t nested = 0;
while ((c = fgetc(depfile)) != EOF) {
if (c=='#') {
// skip comment
while ((c = fgetc(depfile)) != EOF) {
if (c=='n') {
break;
}
}
continue;
}
if (isspace(c) && !nested) {
if (current) {
if (line[current-1]!=':') {
// ignore target
line[current] = 0;
Long_t filetime;
if ( gSystem->GetPathInfo( line, 0, 0, 0, &filetime ) == 0 ) {
modified |= ( lib_time <= filetime );
}
}
}
current = 0;
line[0] = 0;
} else {
if (current==sz-1) {
sz = 2*sz;
char *newline = new char[sz];
strcpy(newline,line);
delete [] line;
line = newline;
}
if (c=='"') nested = !nested;
else {
line[current] = c;
current++;
}
}
}
delete [] line;
fclose(depfile);
recompile = modified;
}
}
}
if ( gInterpreter->IsLoaded(library)
|| strlen(GetLibraries(library,"D",kFALSE)) != 0 ) {
// The library has already been built and loaded.
::Warning("ACLiC","%s script has already been compiled and loaded",
modified ? "modified" : "unmodified");
if ( !recompile ) {
return G__LOADFILE_SUCCESS;
} else {
#ifdef R__KCC
::Error("ACLiC","shared library can not be updated (when using the KCC compiler)!");
return G__LOADFILE_DUPLICATE;
#else
// the following is not working in KCC because it seems that dlclose
// does not properly get rid of the object. It WILL provoke a
// core dump at termination.
::Warning("ACLiC","it will be regenerated and reloaded!");
if ( G__unloadfile( (char*) library.Data() ) != 0 ) {
// The library is being used. We can not unload it.
return(G__LOADFILE_FAILURE);
}
Unlink(library);
#endif
}
}
if (!recompile) {
// The library already exist, let's just load it.
return !gSystem->Load(library);
}
if (!canWrite && recompile) {
::Warning("ACLiC","%s is not writeable!",
build_loc.Data());
::Warning("ACLiC","Output will be written to %s",
emergency_loc.Data());
return CompileMacro(filename, opt, library_specified, emergency_loc);
}
Info("ACLiC","creating shared library %s",library.Data());
// ======= Select the dictionary name
TString dict = BaseName( tmpnam(0) );
// do a basename to remove /var/tmp
// the file name end up in the file produced
// by rootcint as a variable name so all character need to be valid!
static const int maxforbidden = 27;
static const char *forbidden_chars[maxforbidden] =
{ "+","-","*","/","&","%","|","^",">","<",
"=","~",".","(",")","[","]","!",",","$",
" ",":","'","#","@","\",""" };
for( int ic = 0; ic < maxforbidden; ic++ ) {
dict.ReplaceAll( forbidden_chars[ic],"_" );
}
if ( dict.Last('.')!=dict.Length()-1 ) dict.Append(".");
dict.Prepend( build_loc + "/" );
TString dicth = dict;
TString dictObj = dict;
dict += "cxx"; //no need to keep the extention of the original file, any extension will do
dicth += "h";
dictObj += fObjExt;
// ======= Generate a linkdef file
TString linkdef = ConcatFileName( build_loc, BaseName( tmpnam(0) ) );
linkdef += "linkdef.h";
ofstream linkdefFile( linkdef, ios::out
linkdefFile << "// File Automatically generated by the ROOT Script Compiler "
<< endl;
linkdefFile << endl;
linkdefFile << "#ifdef __CINT__" << endl;
linkdefFile << endl;
linkdefFile << "#pragma link C++ nestedclasses;" << endl;
linkdefFile << "#pragma link C++ nestedtypedefs;" << endl;
linkdefFile << endl;
// We want to look for a header file that has the same name as the macro
// First lets get the include directory list in the dir1:dir2:dir3 format
TString incPath = GetIncludePath(); // of the form -Idir1 -Idir2 -Idir3
incPath.Append(":").Prepend(" ");
if (gEnv) {
TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
incPath.Append(fromConfig);
}
incPath.ReplaceAll(" -I",":"); // of form :dir1 :dir2:dir3
while ( incPath.Index(" :") != -1 ) {
incPath.ReplaceAll(" :",":");
}
incPath.Prepend(file_location+":.:");
const char * extensions[] = { ".h", ".hh", ".hpp", ".hxx", ".hPP", ".hXX" };
int i;
for (i = 0; i < 6; i++ ) {
char * name;
TString extra_linkdef = BaseName( libname_noext );
extra_linkdef.Append(GetLinkdefSuffix());
extra_linkdef.Append(extensions[i]);
name = Which(incPath,extra_linkdef);
if (name) {
if (gDebug>4) Info("ACLiC","including extra linkdef file: %s",name);
linkdefFile << "#include "" << name << """ << endl;
delete [] name;
}
}
if (gDebug>5) Info("ACLiC","looking for header in: %s",incPath.Data());
for (i = 0; i < 6; i++ ) {
char * name;
TString lookup = BaseName( libname_noext );
lookup.Append(extensions[i]);
name = Which(incPath,lookup);
if (name) {
linkdefFile << "#pragma link C++ defined_in "<<name<<";"<< endl;
delete [] name;
}
}
linkdefFile << "#pragma link C++ defined_in "<<filename_fullpath << ";" << endl;
linkdefFile << endl;
linkdefFile << "#endif" << endl;
linkdefFile.close();
// ======= Generate the three command lines
TString rcint = "rootcint -f ";
rcint.Append(dict).Append(" -c -p ").Append(GetIncludePath()).Append(" ");
if (gEnv) {
TString fromConfig = gEnv->GetValue("ACLiC.IncludePaths","");
rcint.Append(fromConfig).Append(" ");
}
rcint.Append(filename_fullpath).Append(" ").Append(linkdef);
TString cmd = fMakeSharedLib;
// we do not add filename because it is already included via the dictionary(in dicth) !
// dict.Append(" ").Append(filename);
cmd.ReplaceAll("$SourceFiles",dict);
cmd.ReplaceAll("$ObjectFiles",dictObj);
cmd.ReplaceAll("$IncludePath",includes);
cmd.ReplaceAll("$SharedLib",library);
cmd.ReplaceAll("$LinkedLibs",linkLibraries);
cmd.ReplaceAll("$LibName",libname);
cmd.ReplaceAll("$BuildDir",build_loc);
if (mode==kDebug) cmd.ReplaceAll("$Opt",fFlagsDebug);
else cmd.ReplaceAll("$Opt",fFlagsOpt);
TString testcmd = fMakeExe;
TString fakeMain = ConcatFileName( build_loc, BaseName( tmpnam(0) ) );
fakeMain += extension;
ofstream fakeMainFile( fakeMain, ios::out
fakeMainFile << "// File Automatically generated by the ROOT Script Compiler "
<< endl;
fakeMainFile << "int main(char*argc,char**argvv) {};" << endl;
fakeMainFile.close();
// We could append this fake main routine to the compilation line.
// But in this case compiler may output the name of the dictionary file
// and of the fakeMain file while it compiles it. (this would be useless
// confusing output).
// We could also the fake main routine to the end of the dictionnary file
// however compilation would fail if a main is already there
// (like stress.cxx)
// dict.Append(" ").Append(fakeMain);
TString exec = ConcatFileName( build_loc, BaseName( tmpnam(0) ) );
testcmd.ReplaceAll("$SourceFiles",dict);
testcmd.ReplaceAll("$ObjectFiles",dictObj);
testcmd.ReplaceAll("$IncludePath",includes);
testcmd.ReplaceAll("$ExeName",exec);
testcmd.ReplaceAll("$LinkedLibs",linkLibraries);
testcmd.ReplaceAll("$BuildDir",build_loc);
// ======= Run the build
if (gDebug>3) {
::Info("ACLiC","creating the dictionary files");
if (gDebug>4) ::Info("ACLiC",rcint.Data());
}
Int_t dictResult = gSystem->Exec(rcint);
if (dictResult) {
if (dictResult) {
if (dictResult==139) ::Error("ACLiC","Dictionary generation failed with a core dump!");
else ::Error("ACLiC","Dictionary generation failed!");
}
}
Bool_t result = !dictResult;
if (result) {
if (gDebug>3) {
::Info("ACLiC","compiling the dictionary and script files");
if (gDebug>4) ::Info("ACLiC",cmd.Data());
}
Int_t compilationResult = gSystem->Exec( cmd );
if (compilationResult) {
if (compilationResult==139) ::Error("ACLiC","Compilation failed with a core dump!");
else ::Error("ACLiC","Compilation failed!");
}
result = !compilationResult;
}
if ( result ) {
if (!keep) fCompiled->Add(new TObjString( library ));
#ifndef NOCINT
// This is intended to force a failure if not all symbols needed
// by the library are present.
G__Set_RTLD_NOW();
#endif
if (gDebug>3) ::Info("ACLiC","loading the shared library");
result = !gSystem->Load(library);
#ifndef NOCINT
G__Set_RTLD_LAZY();
#endif
if ( !result ) {
if (gDebug>3) {
::Info("ACLiC","testing for missing symbols:");
if (gDebug>4) ::Info("ACLiC",testcmd.Data());
}
gSystem->Exec(testcmd);
gSystem->Unlink( exec );
}
};
if (gDebug<=5) {
gSystem->Unlink( dict );
gSystem->Unlink( dicth );
gSystem->Unlink( dictObj );
gSystem->Unlink( linkdef );
gSystem->Unlink( fakeMain );
gSystem->Unlink( exec );
}
if (gDebug>6) {
rcint.Prepend("echo ");
cmd.Prepend("echo \" ").Append(" \" ");
testcmd.Prepend("echo \" ").Append(" \" ");
gSystem->Exec(rcint);
gSystem->Exec( cmd );
gSystem->Exec(testcmd);
}
return result;
}
//______________________________________________________________________________
const char *TSystem::GetBuildArch() const
{
return fBuildArch;
}
//______________________________________________________________________________
const char *TSystem::GetBuildNode() const
{
return fBuildNode;
}
//______________________________________________________________________________
const char *TSystem::GetBuildDir() const
{
if (fBuildDir.Length()==0) {
if (!gEnv) return "";
const_cast<TSystem*>(this)->fBuildDir = gEnv->GetValue("ACLiC.BuildDir","");
}
return fBuildDir;
}
//______________________________________________________________________________
const char *TSystem::GetFlagsDebug() const
{
return fFlagsDebug;
}
//______________________________________________________________________________
const char *TSystem::GetFlagsOpt() const
{
return fFlagsOpt;
}
//______________________________________________________________________________
TSystem::EAclicMode TSystem::GetAclicMode() const
{
// AclicMode indicates whether the library should be built in
// debug mode or optimized. The values are:
// TSystem::kDefault : compile the same as the current ROOT
// TSystem::kDebug : compiled in debug mode
// TSystem::kOpt : optimized the library
return fAclicMode;
}
//______________________________________________________________________________
const char *TSystem::GetMakeSharedLib() const
{
return fMakeSharedLib;
}
//______________________________________________________________________________
const char *TSystem::GetMakeExe() const
{
return fMakeExe;
}
//______________________________________________________________________________
const char *TSystem::GetIncludePath()
{
fListPaths = fIncludePath;
fListPaths.Append(" ").Append(gInterpreter->GetIncludePath());
return fListPaths;
}
//______________________________________________________________________________
const char *TSystem::GetLinkedLibs() const
{
return fLinkedLibs;
}
//______________________________________________________________________________
const char *TSystem::GetLinkdefSuffix() const
{
if (fLinkdefSuffix.Length()==0) {
if (!gEnv) return "_linkdef";
const_cast<TSystem*>(this)->fLinkdefSuffix = gEnv->GetValue("ACLiC.Linkdef","_linkdef");
}
return fLinkdefSuffix;
}
//______________________________________________________________________________
const char *TSystem::GetSoExt() const
{
return fSoExt;
}
//______________________________________________________________________________
const char *TSystem::GetObjExt() const
{
return fObjExt;
}
//______________________________________________________________________________
void TSystem::SetBuildDir(const char* build_dir)
{
// Set the location where ACLiC will create libraries and use as
// a scratch area. Note that the libraries are actually stored in
// sub-directories of 'build_dir' including the full pathname of the
// script. If the script is location at /full/path/name/macro.C
// the library will be located at 'build_dir+/full/path/name/macro_C.so'
fBuildDir = build_dir;
}
//______________________________________________________________________________
void TSystem::SetFlagsDebug(const char *flags)
{
// FlagsDebug should contain the options to pass to the C++ compiler
// in order to compile the library in debug mode.
fFlagsDebug = flags;
}
//______________________________________________________________________________
void TSystem::SetFlagsOpt(const char *flags)
{
// FlagsOpt should contain the options to pass to the C++ compiler
// in order to compile the library in optimized mode.
fFlagsOpt = flags;
}
//______________________________________________________________________________
void TSystem::SetAclicMode(EAclicMode mode)
{
// AclicMode indicates whether the library should be built in
// debug mode or optimized. The values are:
// TSystem::kDefault : compile the same as the current ROOT
// TSystem::kDebug : compiled in debug mode
// TSystem::kOpt : optimized the library
fAclicMode = mode;
}
//______________________________________________________________________________
void TSystem::SetMakeExe(const char *directives)
{
// Directives has the same syntax as the argument of SetMakeSharedLib but is
// used to create an executable. This creation is used as a means to output
// a list of unresolved symbols, when loading a shared library has failed.
// The required variable is $ExeName rather than $SharedLib, e.g.:
// gSystem->SetMakeExe(
// "g++ -Wall -fPIC $IncludePath $SourceFiles
// -o $ExeName $LinkedLibs -L/usr/X11R6/lib -lX11 -lm -ldl -rdynamic");
fMakeExe = directives;
// NOTE: add verification that the directives has the required variables
}
//______________________________________________________________________________
void TSystem::SetMakeSharedLib(const char *directives)
{
// Directives should contain the description on how to compile and link a
// shared lib. This description can be any valid shell command, including
// the use of ';' to separate several instructions. However, shell specific
// construct should be avoided. In particular this description can contain
// environment variables, like $ROOTSYS (or %ROOTSYS% on windows).
//
// Five special variables will be expanded before execution:
// Variable name Expands to
// ------------- ----------
// $SourceFiles Name of source files to be compiled
// $SharedLib Name of the shared library being created
// $LibName Name of shared library without extension
// $BuildDir Directory where the files will be created
// $IncludePath value of fIncludePath
// $LinkedLibs value of fLinkedLibs
// $ObjectFiles Name of source files to be compiler with
// their extension changed to .o or .obj
// $Opt location of the optimization/debug options
// set fFlagsDebug and fFlagsOpt
//
// e.g.:
// gSystem->SetMakeSharedLib(
// "KCC -n32 --strict $IncludePath -K0 $Opt $SourceFile
// --no_exceptions --signed_chars --display_error_number
// --diag_suppress 68 -o $SharedLib");
//
// gSystem->setMakeSharedLib(
// "Cxx $IncludePath -c $SourceFile;
// ld -L/usr/lib/cmplrs/cxx -rpath /usr/lib/cmplrs/cxx -expect_unresolved
// $Opt -shared /usr/lib/cmplrs/cc/crt0.o /usr/lib/cmplrs/cxx/_main.o
// -o $SharedLib $ObjectFile -lcxxstd -lcxx -lexc -lots -lc"
//
// gSystem->SetMakeSharedLib(
// "$HOME/mygcc/bin/g++ $Opt -Wall -fPIC $IncludePath $SourceFile
// -shared -o $SharedLib");
//
// gSystem->SetMakeSharedLib(
// "cl -DWIN32 -D_WIN32 -D_MT -D_DLL -MD /O2 /G5 /MD -DWIN32
// -DVISUAL_CPLUSPLUS -D_WINDOWS $IncludePath $SourceFile
// /link -PDB:NONE /NODEFAULTLIB /INCREMENTAL:NO /RELEASE /NOLOGO
// $LinkedLibs -entry:_DllMainCRTStartup@12 -dll /out:$SharedLib")
fMakeSharedLib = directives;
// NOTE: add verification that the directives has the required variables
}
//______________________________________________________________________________
void TSystem::SetIncludePath(const char *IncludePath)
{
// IncludePath should contain the list of compiler flags to indicate where
// to find user defined header files. It is used to expand $IncludePath in
// the directives given to SetMakeSharedLib() and SetMakeExe(), e.g.:
// gSystem->SetInclude("-I$ROOTSYS/include -Imydirectory/include");
// the default value of IncludePath on Unix is:
// "-I$ROOTSYS/include "
// and on Windows:
// "/I%ROOTSYS%/include "
fIncludePath = IncludePath;
}
//______________________________________________________________________________
void TSystem::SetLinkedLibs(const char *LinkedLibs)
{
// LinkedLibs should contain the library directory and list of libraries
// needed to recreate the current executable. It is used to expand $LinkedLibs
// in the directives given to SetMakeSharedLib() and SetMakeExe()
// The default value on Unix is: root-config --glibs
fLinkedLibs = LinkedLibs;
}
//______________________________________________________________________________
void TSystem::SetLinkdefSuffix(const char *suffix)
{
// The 'suffix' will be appended to the name of a script loaded by ACLiC
// and used to locate any eventual additional linkdef information that
// ACLiC should used to produce the dictionary.
// So by default, when doing .L MyScript.cxx, ACLiC will look
// for a file name MyScript_linkdef and having one of the .h (.hpp,
// etc.) extensions. If such a file exist, it will be added to
// the end of the linkdef file used to created the ACLiC dictionary.
// This effectively enable the full customization of the creation
// of the dictionary. It should be noted that the file is intended
// as a linkdef 'fragment', so usually you would not list the
// typical '#pragma link off ....".
fLinkdefSuffix = suffix;
}
//______________________________________________________________________________
void TSystem::SetSoExt(const char *SoExt)
{
// Set shared library extension, should be either .so, .sl, .a, .dll, etc.
fSoExt = SoExt;
}
//______________________________________________________________________________
void TSystem::SetObjExt(const char *ObjExt)
{
// Set object files extension, should be either .o, .obj, etc.
fObjExt = ObjExt;
}
//______________________________________________________________________________
TString TSystem::SplitAclicMode(const char* filename, TString &aclicMode,
TString &arguments, TString &io) const
{
// This method split a filename of the form:
// [path/]macro.C[+|++[g|O]][(args)].
// It stores the ACliC mode [+|++[g|O]] in 'mode',
// the arguments (including paranthesis) in arg
// and the I/O indirection in io
char *fname = Strip(filename);
char *arg = strchr(fname, '(');
// special case for $(HOME)/aap.C(10)
while (arg && *(arg-1) == '$' && *(arg+1))
arg = strchr(arg+1, '(');
if (arg) {
*arg = 0;
char *t = arg-1;
while (*t == ' ') {
*t = 0; t--;
}
arg++;
}
// strip off I/O redirect tokens from filename
char *s2 = 0;
char *s3;
s2 = strstr(fname, ">>");
if (!s2) s2 = strstr(fname, "2>");
if (!s2) s2 = strchr(fname, '>');
s3 = strchr(fname, '<');
if (s2 && s3) s2 = s2<s3 ? s2 : s3;
if (s3 && !s2) s2 = s3;
if (s2) {
s2--;
while (s2 && *s2 == ' ') s2--;
s2++;
io = s2; // ssave = *s2;
*s2 = 0;
} else
io = "";
// remove the possible ACLiC + or ++ and g or O
char postfix[4];
postfix[0] = 0;
int len = strlen(fname);
const char *mode = 0;
if (len > 1) {
if (strcmp(fname+len-1, "g") == 0)
mode = "g";
else if (strcmp(fname+len-1, "O") == 0)
mode = "O";
if (mode)
len--;
}
Bool_t compile = !strncmp(fname+len-1, "+", 1);
Bool_t remove = !strncmp(fname+len-2, "++", 2);
if (compile) {
if (mode) {
fname[len] = 0;
}
if (remove) {
fname[strlen(fname)-2] = 0;
strcpy(postfix, "++");
} else {
fname[strlen(fname)-1] = 0;
strcpy(postfix, "+");
}
if (mode)
strcat(postfix, mode);
}
TString resFilename = fname;
aclicMode = postfix;
arguments = "(";
if (arg) arguments += arg;
else arguments = "";
delete []fname;
return resFilename;
}
//______________________________________________________________________________
void TSystem::CleanCompiledMacros()
{
// Remove the shared libs produced by the CompileMacro() function.
TIter next(fCompiled);
TObjString *lib;
while ((lib = (TObjString*)next()))
Unlink(lib->GetString().Data());
}
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