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authorUlrich Drepper <drepper@redhat.com>2005-11-19 17:22:39 +0000
committerUlrich Drepper <drepper@redhat.com>2005-11-19 17:22:39 +0000
commiteac10791463c42ff4f6da20f548c046e300b3d6d (patch)
tree8061d956005bb5cee17eabe4d6473f1a1039b6fb /nscd/grpcache.c
parent74ac0a89d27d1bff7238ecb14dd0a5009c2f479b (diff)
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* sysdeps/unix/sysv/linux/ia64/bits/shm.h (shmatt_t): New type. cvs/fedora-glibc-20051119T1959
	(struct shmid_ds): Use it for shm_nattch field.

2005-11-18  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/futimesat.c (futimesat): If FILE is NULL,
	set access and modification times of the file referenced by FD.
	* sysdeps/generic/futimesat.c (futimesat): Don't return EINVAL if
	FILE is NULL.  Don't check FD if FILE is absolute path.

2005-11-19  Ulrich Drepper  <drepper@redhat.com>

	* nscd/nscd_gethst_r.c (nscd_gethst_r): Avoid unnecesary read call
	if there are no aliases.

	* sysdeps/unix/sysv/linux/Makefile (CFLAGS-connections.c,
	CFLAGS-pwdcache.c, CFLAGS-grpcache.c, CFLAGS-hstcache.c,
	CFLAGS-aicache.c, CFLAGS-initgrcache.c): Add -DHAVE_SENDFILE.
	* sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_SENDFILE):
	Define.
	* nscd/pwdcache.c [HAVE_SENDFILE]: Include <sys/sendfile.h> and
	<kernel-features.h>.
	[HAVE_SENDFILE] (cache_addpw): Use sendfile to transmit positive
	result.
	* nscd/grpcache.c: Likewise.
	* nscd/hstcache.c: Likewise.
	* nscd/aicache.c: Likewise.
	* nscd/initgrcache.c: Likewise.
	* nscd/connectionc.c: Likewise.
Diffstat (limited to 'nscd/grpcache.c')
-rw-r--r--nscd/grpcache.c30
1 files changed, 29 insertions, 1 deletions
diff --git a/nscd/grpcache.c b/nscd/grpcache.c
index 3f440e9701..fb043152c6 100644
--- a/nscd/grpcache.c
+++ b/nscd/grpcache.c
@@ -32,11 +32,17 @@
 #include <string.h>
 #include <unistd.h>
 #include <sys/mman.h>
+#ifdef HAVE_SENDFILE
+# include <sys/sendfile.h>
+#endif
 #include <sys/socket.h>
 #include <stackinfo.h>
 
 #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.  */
 static const gr_response_header disabled =
@@ -294,7 +300,29 @@ cache_addgr (struct database_dyn *db, int fd, request_header *req,
 	     unnecessarily let the receiver wait.  */
 	  assert (fd != -1);
 
-	  written = writeall (fd, &dataset->resp, total);
+#ifdef HAVE_SENDFILE
+	  if (__builtin_expect (db->mmap_used, 1))
+	    {
+	      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));
+	      off_t off = (char *) &dataset->resp - (char *) db->head;
+	      written = sendfile (fd, db->wr_fd, &off, 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