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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /nscd/hstcache.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'nscd/hstcache.c')
-rw-r--r--nscd/hstcache.c58
1 files changed, 41 insertions, 17 deletions
diff --git a/nscd/hstcache.c b/nscd/hstcache.c
index 99d2998f49..e27ece5bc6 100644
--- a/nscd/hstcache.c
+++ b/nscd/hstcache.c
@@ -1,22 +1,20 @@
/* Cache handling for host lookup.
- Copyright (C) 1998-2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 1998-2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation.
- The GNU C Library is distributed in the hope that it will be useful,
+ This program 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
- Lesser General Public License for more details.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <alloca.h>
#include <assert.h>
@@ -38,6 +36,9 @@
#include "nscd.h"
#include "dbg_log.h"
+#ifdef HAVE_SENDFILE
+# include <kernel-features.h>
+#endif
/* This is the standard reply in case the service is disabled. */
@@ -115,7 +116,8 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
written = total = sizeof (notfound);
if (fd != -1)
- written = TEMP_FAILURE_RETRY (write (fd, &notfound, total));
+ written = TEMP_FAILURE_RETRY (send (fd, &notfound, total,
+ MSG_NOSIGNAL));
dataset = mempool_alloc (db, sizeof (struct dataset) + req->key_len);
/* If we cannot permanently store the result, so be it. */
@@ -327,7 +329,30 @@ cache_addhst (struct database_dyn *db, int fd, request_header *req,
unnecessarily keep the receiver waiting. */
assert (fd != -1);
- written = TEMP_FAILURE_RETRY (write (fd, &dataset->resp, total));
+#ifdef HAVE_SENDFILE
+ if (__builtin_expect (db->mmap_used, 1) && !alloca_used)
+ {
+ assert (db->wr_fd != -1);
+ assert ((char *) &dataset->resp > (char *) db->data);
+ assert ((char *) &dataset->resp - (char *) db->head
+ + total
+ <= (sizeof (struct database_pers_head)
+ + db->head->module * sizeof (ref_t)
+ + db->head->data_size));
+ written = sendfileall (fd, db->wr_fd,
+ (char *) &dataset->resp
+ - (char *) db->head, total);
+# ifndef __ASSUME_SENDFILE
+ if (written == -1 && errno == ENOSYS)
+ goto use_write;
+# endif
+ }
+ else
+# ifndef __ASSUME_SENDFILE
+ use_write:
+# endif
+#endif
+ written = writeall (fd, &dataset->resp, total);
}
/* Add the record to the database. But only if it has not been
@@ -453,11 +478,10 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
{
char *old_buffer = buffer;
errno = 0;
-#define INCR 1024
if (__builtin_expect (buflen > 32768, 0))
{
- buflen += INCR;
+ buflen *= 2;
buffer = (char *) realloc (use_malloc ? buffer : NULL, buflen);
if (buffer == NULL)
{
@@ -478,7 +502,7 @@ addhstbyX (struct database_dyn *db, int fd, request_header *req,
else
/* Allocate a new buffer on the stack. If possible combine it
with the previously allocated buffer. */
- buffer = (char *) extend_alloca (buffer, buflen, buflen + INCR);
+ buffer = (char *) extend_alloca (buffer, buflen, 2 * buflen);
}
#if 0