private static ProcessResult CallPowershellCommand(string command)
{
return(ProcessHelper.Run("powershell.exe", "-NonInteractive -NoProfile -Command \"& { " + command + " }\""));
}
public static string CurrentGVFSVersion()
{
return(ProcessHelper.GetCurrentProcessVersion());
}
/// <summary>
/// Allows external callers (non-GVFS) to acquire the lock.
/// </summary>
/// <param name="requester">The data for the external acquisition request.</param>
/// <param name="holder">
/// The current holder of the lock if the acquisition fails, or
/// the input request if it succeeds.
/// </param>
/// <returns>True if the lock was acquired, false otherwise.</returns>
public bool TryAcquireLock(
NamedPipeMessages.LockData requester,
out NamedPipeMessages.LockData holder)
{
EventMetadata metadata = new EventMetadata();
EventLevel eventLevel = EventLevel.Verbose;
metadata.Add("LockRequest", requester.ToString());
try
{
lock (this.acquisitionLock)
{
if (this.IsLockedByGVFS)
{
holder = null;
metadata.Add("CurrentLockHolder", "GVFS");
metadata.Add("Result", "Denied");
return(false);
}
if (this.lockHolder != null &&
this.lockHolder.PID != requester.PID)
{
holder = this.lockHolder;
metadata.Add("CurrentLockHolder", this.lockHolder.ToString());
metadata.Add("Result", "Denied");
return(false);
}
metadata.Add("Result", "Accepted");
eventLevel = EventLevel.Informational;
Process process;
if (ProcessHelper.TryGetProcess(requester.PID, out process))
{
this.processWatcher.WatchForTermination(requester.PID, GVFSConstants.CommandParentExePrefix);
process.Dispose();
this.lockHolder = requester;
holder = requester;
this.externalLockReleased.Reset();
return(true);
}
else
{
// Process is no longer running so let it
// succeed since the process non-existence
// signals the lock release.
if (process != null)
{
process.Dispose();
}
holder = null;
return(true);
}
}
}
finally
{
this.tracer.RelatedEvent(eventLevel, "TryAcquireLockExternal", metadata);
}
}
public static bool IsDevelopmentVersion()
{
Version currentVersion = new Version(ProcessHelper.GetCurrentProcessVersion());
return(currentVersion.Major == 0);
}
