/// <summary>
/// Checks if the lock file exists, and does whatever you ask in the argument.
/// </summary>
/// <param name="LockOperation">The operation to perform.</param>
/// <returns>true if the lock file exists, false otherwise.</returns>
/// <exception cref="IOException">thrown if the lock file could not be deleted/created</exception>
public bool IsLocked(LockOperations LockOperation) {
if (File.Exists(this.LockFileFullPath)) {
if (LockOperation == LockOperations.RemoveLock)
try {
File.Delete(this.LockFileFullPath);
} catch (Exception ex) {
throw new IOException("Lock File could not be deleted. Try deleting it manually: " + this.LockFileFullPath ,ex);
}
return true;
} else { // Lock file doesn't exist
if (LockOperation == LockOperations.CreateLock) {
try {
using (StreamWriter writer = File.CreateText( this.LockFileFullPath )){
writer.Write(DateTime.Now.ToString() + " " + Environment.UserName);
}
} catch (Exception ex) {
throw new IOException("Lock File could not be created.",ex);
}
}
return false;
}
}
internal static extern int FLock(IntPtr fd, LockOperations operation);
internal static extern int FLock(SafeFileHandle fd, LockOperations operation);
internal static extern int FLock(IntPtr fd, LockOperations operation);
internal static extern int FLock(SafeFileHandle fd, LockOperations operation);
internal static extern int flock(int fd, LockOperations operation);
internal static partial int FLock(IntPtr fd, LockOperations operation);
internal static partial int FLock(SafeFileHandle fd, LockOperations operation);
internal static extern int FLock(int fd, LockOperations operation);
