/** @file ../include/sys/signal.h
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/** @typedef typedef __sigset_t sigset_t
The sigset_t data type is used to represent a signal set.
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/** @def SIG_DFL
Request for default signal handling.
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/** @def SIG_IGN
Request that signal be ignored.
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/** @def SIG_ERR
Return value from signal() in case of error.
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/** @def SIGHUP
Hangup.
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/** @def SIGQUIT
Terminal quit signal.
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/** @def SIGILL
Illegal opcode.
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/** @def SIGTRAP
trace trap (not reset when caught)
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/** @def SIGABRT
abort()
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/** @def SIGIOT
compatibility
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/** @def SIGEMT
EMT instruction
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/** @def SIGFPE
floating point exception
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/** @def SIGKILL
kill (cannot be caught or ignored)
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/** @def SIGBUS
bus error
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/** @def SIGSEGV
segmentation violation
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/** @def SIGSYS
non-existent system call invoked
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/** @def SIGALRM
alarm clock
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/** @def SIGTERM
software termination signal from kill
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/** @def SIGURG
urgent condition on IO channel
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/** @def SIGSTOP
sendable stop signal not from tty
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/** @def SIGTSTP
stop signal from tty
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/** @def SIGCONT
continue a stopped process
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/** @def SIGCHLD
to parent on child stop or exit
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/** @def SIGTTIN
to readers pgrp upon background tty read
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/** @def SIGTTOU
like TTIN
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/** @def SIGIO
input or output possible signal
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/** @def SIGXCPU
exceeded CPU time limit
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/** @def SIGXFSZ
exceeded file size limit
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/** @def SIGVTALRM
virtual time alarm
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/** @def SIGPROF
profiling time alarm
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/** @def SIGWINCH
window size changes
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/** @def SIGINFO
information request
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/** @def SIGUSR1
user defined signal 1
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/** @def SIGUSR2
user defined signal 2
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/** @def SIGTHR
Thread interrupt.
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/** @def NSIG
number of old signals (counting 0)
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/** @def SA_ONSTACK
take signal on signal stack
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/** @def SA_RESTART
restart system call on signal return
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/** @def SA_RESETHAND
reset to SIG_DFL when taking signal
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/** @def SA_NODEFER
don't mask the signal we're delivering
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/** @def SA_NOCLDWAIT
don't keep zombies around
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/** @def SA_SIGINFO
signal handler with SA_SIGINFO args
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*/