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API: Clean up orphaned sockets

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This commit is contained in:
Jon Evans 2025-02-03 18:56:55 -05:00
parent 0682d319fb
commit 29b2c79f0a
1 changed files with 20 additions and 0 deletions
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20
common/api/api_server.cpp
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@ -88,6 +88,26 @@ void KICAD_API_SERVER::Start()
return; return;
} }
#ifndef __WINDOWS__
// We use non-abstract sockets because macOS and some other non-Linux platforms don't support
// abstract sockets, which means there might be an old socket to unlink. In order to try to
// recover this, we lock a file (which will be unlocked on process exit) and if we get the lock,
// we know the old socket is orphaned and can be removed.
wxFileName lockFilePath( socket.GetPath(), wxS( "api.lock" ) );
int lockFile = open( lockFilePath.GetFullPath().c_str(), O_RDONLY | O_CREAT, 0600 );
if( lockFile >= 0 && flock( lockFile, LOCK_EX | LOCK_NB ) == 0 )
{
if( socket.Exists() )
{
wxLogTrace( traceApi, wxString::Format( "Server: cleaning up stale socket path %s",
socket.GetFullPath() ) );
wxRemoveFile( socket.GetFullPath() );
}
}
#endif
if( socket.Exists() ) if( socket.Exists() )
{ {
socket.SetFullName( wxString::Format( wxS( "api-%lu.sock" ), ::wxGetProcessId() ) ); socket.SetFullName( wxString::Format( wxS( "api-%lu.sock" ), ::wxGetProcessId() ) );