svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
signal(3f)
signal(3F) Fortran Library Functions signal(3F)
NAME
signal - change the action for a signal
SYNOPSIS
integer*4 function signal(signum, proc, flag)
integer*4 signum, flag
external proc
For 64-bit environments:
integer*8 function signal(signum, proc, flag)
integer*8 flag
integer*4 signum
external proc
When compiling for 64-bit environments, with compiler option
-m64, proc, and flag must be declared integer*8 as well as any
variables receiving the result from signal.
DESCRIPTION
If a process incurs a signal (see signal(3C)), the default action is
usually to clean up and abort. You can choose to write an alternative
signal handling routine. A call to signal is the way this alternate ac‐
tion is specified to the system.
Input:
signum is the signal number (see signal.h(3HEAD)). proc is the name of
a user signal handling routine. If flag is negative, then proc must be
the name of the user signal handling routine. If flag is zero or posi‐
tive, then proc is ignored and the value of flag is passed to the sys‐
tem as the signal action definition. In particular, this is how previ‐
ously saved signal actions can be restored. Two possible values for
flag have specific meanings:
0 means "use the default action." See NOTES below.
1 means "ignore this signal."
Output:
A positive returned value is the previous action definition. A value
greater than 1 is the address of a routine that was to have been called
on occurrence of the given signal. A negative returned value is the
negation of a system error code. See perror(3F). The returned value can
be used in subsequent calls to signal to restore a previous action def‐
inition.
FILES
libfsu.a, libfsu.so.
SEE ALSO
kill(1), kill(3F), perror(3F), signal(3C)
NOTES
When a negative flag value is desired in a 64-bit environment, use the
INTEGER*8 literal value -1_8 in the call to signal.
If the user signal handler is called, it is passed the signal number as
an integer argument.
This function may fail if the code for a function passed to it as flag
is loaded at addresses with the high bit set. This will be interpreted
as a negative value for flag when the behavior for positive values is
desired. This is less likely to happen in 64-bit environments, or with
statically-linked code.
On Linux systems, the signal() man page is in man page section 2 and
the signal numbers are in section 7.
Studio 12.6 September 2015 signal(3F)