Miscellaneous Signals
The following signals are not specified in the POSIX specification. They are, however, sometimes used on various systems.
- SIGEMT
- The SIGEMT signal is sent to a process when an emulator trap occurs.
- SIGINFO
- The SIGINFO signal is sent to a process when a status request is received from the controlling terminal.
- SIGPWR
- The SIGPWR signal is sent to a process when the system experiences a power failure.
- SIGLOST
- The SIGLOST signal is sent to a process when a file lock is lost.
- SIGWINCH
- The SIGWINCH signal is sent to a process when its controlling terminal changes its size.
Read more about this topic: SIGVTALRM
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