glibc/resolv/gai_misc.h
Ulrich Drepper 2ace572170 Update.
* Versions.def: Add libanl definition.
	* shlig-versions: Add entry for libanl.
	* resolv/Makefile (distribute): Add gai_misc.h and ga_test.c.
	(routines): Add gai_sigqueue.
	(extra-libs): Add libanl.
	(libanl-routines): New variable.
	Add rules to build libanl and ga_test.
	* resolv/Versions [libc] (GLIBC_2.2.3): Add __gai_sigqueue.
	[libanl]: New library.
	* resolv/netdb.h: Add definitions for libanl.
	* resolv/getaddrinfo_a.c: New file.
	* resolv/gai_cancel.c: New file.
	* resolv/gai_error.c: New file.
	* resolv/gai_misc.c: New file.
	* resolv/gai_misc.h: New file.
	* resolv/gai_notify.c: New file.
	* resolv/gai_suspend.c: New file.
	* resolv/ga_test.c: New file.
	* sysdeps/generic/gai_sigqueue.c: New file.
	* sysdeps/unix/sysv/linux/gai_sigqueue.c: New file.
	* sysdeps/generic/bits/siginfo.h: Allow __need_sigevent_t being defined
	and provide only that definition.
	* sysdeps/unix/sysv/linux/alpha/bits/siginfo.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/siginfo.h: Likewise.
	* sysdeps/unix/sysv/linux/ia64/bits/siginfo.h: Likewise.
	* sysdeps/unix/sysv/linux/mips/bits/siginfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/siginfo.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/bits/siginfo.h: Likewise.

	* rt/aio_misc.c: Fix typos in comments.
	* rt/lio_listio.c: Pretty printing.  Little optimization in request
	list handling.

	* elf/rtld.c: Remove commented out code.
2001-03-03 18:21:04 +00:00

101 lines
3.0 KiB
C

/* Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _GAI_MISC_H
#define _GAI_MISC_H 1
#include <netdb.h>
#include <signal.h>
/* Used to synchronize. */
struct waitlist
{
struct waitlist *next;
pthread_cond_t *cond;
volatile int *counterp;
/* The next field is used in asynchronous `lio_listio' operations. */
struct sigevent *sigevp;
/* XXX See requestlist, it's used to work around the broken signal
handling in Linux. */
pid_t caller_pid;
};
/* Used to queue requests.. */
struct requestlist
{
int running;
struct requestlist *next;
/* Pointer to the actual data. */
struct gaicb *gaicbp;
/* List of waiting processes. */
struct waitlist *waiting;
};
/* To customize the implementation one can use the following struct.
This implementation follows the one in Irix. */
struct gaiinit
{
int gai_threads; /* Maximal number of threads. */
int gai_num; /* Number of expected simultanious requests. */
int gai_locks; /* Not used. */
int gai_usedba; /* Not used. */
int gai_debug; /* Not used. */
int gai_numusers; /* Not used. */
int gai_idle_time; /* Number of seconds before idle thread
terminates. */
int gai_reserved;
};
/* Lock for global I/O list of requests. */
extern pthread_mutex_t __gai_requests_mutex;
/* Enqueue request. */
extern struct requestlist *__gai_enqueue_request (struct gaicb *gaicbp)
internal_function;
/* Find request on wait list. */
extern struct requestlist *__gai_find_request (const struct gaicb *gaicbp)
internal_function;
/* Remove request from waitlist. */
extern int __gai_remove_request (struct gaicb *gaicbp)
internal_function;
/* Notify initiator of request and tell this everybody listening. */
extern void __gai_notify (struct requestlist *req)
internal_function;
/* Notify initiator of request. */
extern int __gai_notify_only (struct sigevent *sigev, pid_t caller_pid)
internal_function;
/* Send the signal. */
extern int __gai_sigqueue (int sig, const union sigval val, pid_t caller_pid)
internal_function;
#endif /* gai_misc.h */