1 files changed, 100 insertions, 0 deletions
diff --git a/resolv/gai_misc.h b/resolv/gai_misc.h
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@@ -0,0 +1,100 @@
+/* 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 */