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killpg.2 (2010 09)

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killpg(2) killpg(2)
NAME
bsdproc: killpg(), getpgrp(), setpgrp(), signal(), sigvec() - 4.2 BSD-compatible process control facilities
SYNOPSIS
#include <signal.h>
int killpg(int pgrp, int sig);
int getpgrp(int pid);
int setpgrp(int pid, int pgrp);
void (*signal(int sig, void (*func)(int)))(int);
Obsolescent Interfaces
int sigvec(
int sig,
struct sigvec *vec,
struct sigvec *ovec
);
DESCRIPTION
These calls simulate (and are provided for backward compatibility with) functions of the same name in
the 4.2 Berkeley Software Distribution.
This version of
setpgrp() is equivalent to the system call setpgid(pid, pgrp) (see setpgid (2)).
This version of
getpgrp() is equivalent to the system call getpgrp2(pid) (see getpid (2)).
killpg() is equivalent to the system call kill(-pgrp, sig) (see kill (2)).
The function
sigvec() is no longer supported. Please see the manpage for sigaction (2).
This version of
signal() has the same effect as sigvec(sig , vec,
ovec ), where vec −>sv_handler is
equal to func, vec−>sv_mask is equal to 0, and vec−>sv_flags is equal to 0.
signal() returns the
value that would be stored in ovec −>sv_handler if the equivalent
sigvec() call would have succeeded.
Otherwise, signal() returns −1 and errno is set to indicate the reason as it would have been set by
the equivalent call to sigvec().
For applications that use BSD signal, it is recommended that they use sigaction(2). The system supports
an alternative with similar behavior to Berkeley Software Distribution, and the API is
bsd_signal but
its use is not recommended.
WARNINGS
While the 4.3 BSD release defined extensions to some of the interfaces described here, only the 4.2 BSD
interfaces are emulated by this package.
bsdproc() should not be used in conjunction with the facilities described under sigset (3C).
Obsolescent Interfaces
The function
sigvec() is no longer supported. Please see the manpage for sigaction (2).
APPLICATION USAGE
Threads Considerations
The signal disposition (such as catch/ignore/default) established by
sigvec() and signal() is
shared by all threads in the process.
For more information regarding signals and threads, refer to signal (5).
AUTHOR
bsdproc() was developed by HP and the University of California, Berkeley.
SEE ALSO
ld(1), kill(2), getpid(2), msgop(2), msgsnd(2), msgrcv(2), read(2), semop(2), setpgid(2), setsid(2), wait(2),
write(2), sigaction(2) sigset(3C), sigstack(2), bsd_signal(3C), signal(5).
HP-UX 11i Version 3: September 2010 − 1 − Hewlett-Packard Company 1

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