Manual Section... (3) - page: sysv_signal
NAMEsysv_signal - signal handling with System V semantics
typedef void (*sighandler_t)(int);
DESCRIPTIONThe sysv_signal() function takes the same arguments, and performs the same task, as signal(2).
However sysv_signal() provides the System V unreliable signal semantics, that is: a) the disposition of the signal is reset to the default when the handler is invoked; b) delivery of further instances of the signal is not blocked while the signal handler is executing; and c) if the handler interrupts (certain) blocking system calls, then the system call is not automatically restarted.
RETURN VALUEThe sysv_signal() function returns the previous value of the signal handler, or SIG_ERR on error.
ERRORSAs for signal(2).
CONFORMING TOThis function is nonstandard.
NOTESUse of sysv_signal() should be avoided; use sigaction(2) instead.
SEE ALSOsigaction(2), signal(2), bsd_signal(3), feature_test_macros(7), signal(7)
COLOPHONThis page is part of release 3.24 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
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Time: 15:27:09 GMT, June 11, 2010