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bool radarelab::utils::sys::FileDescriptor::ofd_setlkw ( struct::flock &  ,
bool  retry_on_signal = true 
)

Open file description locks F_OFD_SETLKW operation.

Returns true if the lock was obtained, false if a signal was received while waiting for the lock.

If retry_on_signal is true, acquiring the lock is automatically retried in case of signals, and the function always returns true.