#include <CloseCoutSentry.h>

Public Member Functions
void	clear ()
	CloseCoutSentry (bool silent=true)
FILE *	trueStdOut ()
	~CloseCoutSentry ()
Static Public Member Functions
static void	breakFree ()
Static Private Member Functions
static void	reallyClear ()
Private Attributes
static int	fdErr_ = 0
bool	silent_
bool	stdOutIsMine_
Static Private Attributes
static int	fdOut_ = 0
static bool	open_ = true
static FILE *	trueStdOut_ = 0

Detailed Description

This class redirects cout and cerr to /dev/null when created, and restores them back when destroyed.

Definition at line 7 of file CloseCoutSentry.h.

Constructor & Destructor Documentation

CloseCoutSentry::CloseCoutSentry ( bool silent = true )

Definition at line 11 of file CloseCoutSentry.cc.

References fdErr_, fdOut_, open_, and silent_.

                                            :
    silent_(silent), stdOutIsMine_(false)
{
    if (silent_) {
        if (open_) {
            open_ = false;
            if (fdOut_ == 0 && fdErr_ == 0) {
                fdOut_ = dup(1);
                fdErr_ = dup(2);
            }
            freopen("/dev/null", "w", stdout);
            freopen("/dev/null", "w", stderr);
        } else {
            silent_ = false; 
        }
    }
}

CloseCoutSentry::~CloseCoutSentry ( )

Definition at line 29 of file CloseCoutSentry.cc.

References clear().

{
    clear();
}

Member Function Documentation

void CloseCoutSentry::breakFree ( ) [static]

Definition at line 54 of file CloseCoutSentry.cc.

References reallyClear().

{
    reallyClear();
}

void CloseCoutSentry::clear ( void )

Definition at line 34 of file CloseCoutSentry.cc.

References reallyClear(), silent_, stdOutIsMine_, and trueStdOut_.

Referenced by FitterAlgoBase::doFit(), Asymptotic::findExpectedLimitFromCrossing(), Asymptotic::getCLs(), MarkovChainMC::run(), ProfileLikelihood::runLimit(), Asymptotic::runLimitExpected(), MarkovChainMC::runOnce(), GoodnessOfFit::runSaturatedModel(), ProfileLikelihood::runSignificance(), ChannelCompatibilityCheck::runSpecific(), and ~CloseCoutSentry().

{
    if (stdOutIsMine_) { fclose(trueStdOut_); trueStdOut_ = 0; }
    if (silent_) {
        reallyClear();
        silent_ = false;
    }
}

void CloseCoutSentry::reallyClear ( ) [static, private]

Definition at line 43 of file CloseCoutSentry.cc.

References fdErr_, fdOut_, and open_.

Referenced by breakFree(), and clear().

{
    if (fdOut_ != fdErr_) {
        char buf[50];
        sprintf(buf, "/dev/fd/%d", fdOut_); freopen(buf, "w", stdout);
        sprintf(buf, "/dev/fd/%d", fdErr_); freopen(buf, "w", stderr);
        open_   = true;
        fdOut_ = fdErr_ = 0; 
    }
}

FILE * CloseCoutSentry::trueStdOut ( )

Definition at line 59 of file CloseCoutSentry.cc.

References fdOut_, open_, stdOutIsMine_, and trueStdOut_.

Referenced by MultiDimFit::doGrid().

{
    if (open_) return stdout;
    if (trueStdOut_) return trueStdOut_;
    stdOutIsMine_ = true;
    char buf[50];
    sprintf(buf, "/dev/fd/%d", fdOut_); trueStdOut_ = fopen(buf, "w");
    return trueStdOut_;
}