From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 16 Nov 2010 19:10:29 +0000 (+0000)
Subject: sim: dv-sockser: add a write buffer variant
X-Git-Tag: cgen-snapshot-20101201~122
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6ab5626b08f37bc5b84c67d0f25e363e0ab0180e;p=external%2Fbinutils.git

sim: dv-sockser: add a write buffer variant

Rather than having to bang out chunks of data one byte at a time over
the socket interface, add a write variant that accepts an arbitrarily
long buffer.  This speeds things up considerably when we have many
chars to send out at once.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index 6cb313b..d6dc022 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,9 @@
+2010-11-16  Mike Frysinger  <vapier@gentoo.org>
+
+	* dv-sockser.c (dv_sockser_write_buffer): New function.
+	(dv_sockser_write): Rewrite to use dv_sockser_write_buffer.
+	* dv-sockser.h (dv_sockser_write_buffer): New prototype.
+
 2010-10-07  Hans-Peter Nilsson  <hp@axis.com>
 
 	* callback.c (os_lseek): Call wrap on lseek result.
diff --git a/sim/common/dv-sockser.c b/sim/common/dv-sockser.c
index b09d9c9..f6fd389 100644
--- a/sim/common/dv-sockser.c
+++ b/sim/common/dv-sockser.c
@@ -346,13 +346,14 @@ dv_sockser_status (SIM_DESC sd)
 }
 
 int
-dv_sockser_write (SIM_DESC sd, unsigned char c)
+dv_sockser_write_buffer (SIM_DESC sd, const unsigned char *buffer,
+			 unsigned nr_bytes)
 {
   int n;
 
   if (! connected_p (sd))
     return -1;
-  n = write (sockser_fd, &c, 1);
+  n = write (sockser_fd, buffer, nr_bytes);
   if (n == -1)
     {
       if (errno == EPIPE)
@@ -362,9 +363,15 @@ dv_sockser_write (SIM_DESC sd, unsigned char c)
 	}
       return -1;
     }
-  if (n != 1)
+  if (n != nr_bytes)
     return -1;
-  return 1;
+  return nr_bytes;
+}
+
+int
+dv_sockser_write (SIM_DESC sd, unsigned char c)
+{
+  return dv_sockser_write_buffer (sd, &c, 1);
 }
 
 int
diff --git a/sim/common/dv-sockser.h b/sim/common/dv-sockser.h
index 209cf46..0ad071a 100644
--- a/sim/common/dv-sockser.h
+++ b/sim/common/dv-sockser.h
@@ -27,6 +27,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 /* FIXME: later add a device ptr arg */
 extern int dv_sockser_status (SIM_DESC);
 int dv_sockser_write (SIM_DESC, unsigned char);
+int dv_sockser_write_buffer (SIM_DESC, const unsigned char *, unsigned);
 int dv_sockser_read (SIM_DESC);
 
 #endif /* DV_SOCKSER_H */