On some Unix-like platforms, SIGLOST is the signal sent to computer programs when a file lock is lost. The symbolic constant for SIGLOST is defined in the header file signal.h. Symbolic signal names are used because signal numbers can vary across platforms.


SIG is a common prefix for signal names. LOST refers to a lost file lock.


SIGLOST is sent to a process when a file lock is lost. This may occur, for example, when an NFS server reboots and forgets about a file lock.

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