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Check the primary connection and assume primary if no response is found.

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This guards against the case of stale shared memory that can happen when
the primary application crashes or is forcefully killed.

Issue #190

Signed-off-by: Adam Treat <treat.adam@gmail.com>
This commit is contained in:
Adam Treat 2024-08-29 12:45:45 -04:00
parent 494772e98c
commit 21bdef01ed
1 changed files with 7 additions and 0 deletions
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7
singleapplication.cpp
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@ -137,6 +137,13 @@ SingleApplication::SingleApplication( int &argc, char *argv[], bool allowSeconda
}
}
// Check to ensure the primary process really does exist by sending a message and if it does not
// then assume primary status
if ( inst->primary != false && !d->connectToPrimary( timeout, SingleApplicationPrivate::SecondaryInstance )) {
qDebug() << "SingleApplication: Cannot communicate with primary so assuming primary status.";
inst->primary = false;
}
if( inst->primary == false ){
d->startPrimary();
if( ! d->memory->unlock() ){