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[PATCH] sim: dv-sockser: add a write buffer variant
- From: Mike Frysinger <vapier at gentoo dot org>
- To: gdb-patches at sourceware dot org
- Date: Mon, 15 Nov 2010 21:44:33 -0500
- Subject: [PATCH] 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>
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.
---
sim/common/dv-sockser.c | 15 +++++++++++----
sim/common/dv-sockser.h | 1 +
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/sim/common/dv-sockser.c b/sim/common/dv-sockser.c
index 640f869..647237d 100644
--- a/sim/common/dv-sockser.c
+++ b/sim/common/dv-sockser.c
@@ -347,13 +347,14 @@ 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)
@@ -363,9 +364,15 @@ 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 */
--
1.7.3.1