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2.5-18.1

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This commit is contained in:
Jakub Jelinek
2007-07-12 18:26:36 +00:00
parent 7d58530341
commit 0ecb606cb6
6215 changed files with 494638 additions and 305010 deletions
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53
resolv/gai_notify.c
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@@ -1,4 +1,4 @@
/* Copyright (C) 2001 Free Software Foundation, Inc.
/* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
@@ -20,15 +20,24 @@
#include <netdb.h>
#include <pthread.h>
#include <stdlib.h>
#include <gai_misc.h>
#include "gai_misc.h"
struct notify_func
{
void (*func) (sigval_t);
sigval_t value;
};
static void *
notify_func_wrapper (void *arg)
{
struct sigevent *sigev = arg;
sigev->sigev_notify_function (sigev->sigev_value);
gai_start_notify_thread ();
struct notify_func *const n = arg;
void (*func) (sigval_t) = n->func;
sigval_t value = n->value;
free (n);
(*func) (value);
return NULL;
}
@@ -54,8 +63,26 @@ __gai_notify_only (struct sigevent *sigev, pid_t caller_pid)
pattr = &attr;
}
if (pthread_create (&tid, pattr, notify_func_wrapper, sigev) < 0)
/* SIGEV may be freed as soon as we return, so we cannot let the
notification thread use that pointer. Even though a sigval_t is
only one word and the same size as a void *, we cannot just pass
the value through pthread_create as the argument and have the new
thread run the user's function directly, because on some machines
the calling convention for a union like sigval_t is different from
that for a pointer type like void *. */
struct notify_func *nf = malloc (sizeof *nf);
if (nf == NULL)
result = -1;
else
{
nf->func = sigev->sigev_notify_function;
nf->value = sigev->sigev_value;
if (pthread_create (&tid, pattr, notify_func_wrapper, nf) < 0)
{
free (nf);
result = -1;
}
}
}
else if (sigev->sigev_notify == SIGEV_SIGNAL)
/* We have to send a signal. */
@@ -79,15 +106,21 @@ __gai_notify (struct requestlist *req)
{
struct waitlist *next = waitlist->next;
/* Decrement the counter. This is used in both cases. */
--*waitlist->counterp;
if (waitlist->sigevp == NULL)
pthread_cond_signal (waitlist->cond);
{
#ifdef DONT_NEED_GAI_MISC_COND
GAI_MISC_NOTIFY (waitlist);
#else
/* Decrement the counter. */
--*waitlist->counterp;
pthread_cond_signal (waitlist->cond);
#endif
}
else
/* This is part of a asynchronous `getaddrinfo_a' operation. If
this request is the last one, send the signal. */
if (*waitlist->counterp == 0)
if (--*waitlist->counterp == 0)
{
__gai_notify_only (waitlist->sigevp, waitlist->caller_pid);
/* This is tricky. See getaddrinfo_a.c for the reason why