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/***************************************************************************
* *
* copyright (C) 2004 by Michael Buesch *
* email: mbuesch@freenet.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License version 2 *
* as published by the Free Software Foundation. *
* *
***************************************************************************/
#include "selftest.h"
#include "pwmexception.h"
#include "sha1.h"
#include "blowfish.h"
#include "base64.h"
#include <pthread.h>
static SelfTest *st = 0;
static pthread_mutex_t st_mutex = PTHREAD_MUTEX_INITIALIZER;
SelfTest::SelfTest()
{
connect(&schedTimer, SIGNAL(timeout()),
this, SLOT(doSelfTest()));
}
SelfTest::~SelfTest()
{
}
void SelfTest::run()
{
// printDebug("running self-test...");
if (unlikely(!Sha1::selfTest())) {
failed("SHA1");
return;
}
if (unlikely(!Blowfish::selfTest())) {
failed("BLOWFISH");
return;
}
if (unlikely(!Base64::selfTest())) {
failed("BASE64");
return;
}
// printDebug("self-test done.");
if (!pthread_mutex_trylock(&st_mutex)) {
/* only cancel (delete) this thread, if there's currently
* noone else doing this job. Otherwise we will deadlock.
* we use a timer here, to do some kind of context-switch.
*/
QTimer::singleShot(0, st, SLOT(doCancel()));
}
}
void SelfTest::failed(const char *algo)
{
string msg("\n\n\n"
"PwManager FATAL ERROR:\n"
"Self-test for algorithm \"");
msg += algo;
msg += "\" failed!\n\n";
msg += "It's likely to be either a PwManager BUG or "
"bad hardware in your machine. Please contact the "
"maintainer of PwManager for this issue.";
std::cerr << msg << std::endl;
::exit(1);
}
void SelfTest::schedule()
{
if (pthread_mutex_lock(&st_mutex))
return;
if (st)
goto out;
st = new SelfTest;
st->startTimer();
out:
pthread_mutex_unlock(&st_mutex);
}
void SelfTest::cancel()
{
if (pthread_mutex_lock(&st_mutex))
return;
if (!st) {
pthread_mutex_unlock(&st_mutex);
return;
}
st->doCancel();
}
void SelfTest::doCancel()
{
st->stopTimer();
st->wait();
delete_and_null(st);
pthread_mutex_unlock(&st_mutex);
}
#include "selftest.moc"
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