[freenos] r294 committed - DeviceServer now correctly updates FileDescriptor::position....
- From: codesite-noreply@xxxxxxxxxx
- To: freenos@xxxxxxxxxxxxx
- Date: Mon, 03 Aug 2009 21:29:42 +0000
Revision: 294
Author: nieklinnenbank
Date: Mon Aug 3 14:28:50 2009
Log: DeviceServer now correctly updates FileDescriptor::position.
Additionally, this patchs makes 'cat /dev/vga0' execute correctly.
http://code.google.com/p/freenos/source/detail?r=294
Modified:
/trunk/srv/DeviceServer.h
=======================================
--- /trunk/srv/DeviceServer.h Sun Aug 2 04:48:54 2009
+++ /trunk/srv/DeviceServer.h Mon Aug 3 14:28:50 2009
@@ -360,7 +360,7 @@
result = dev->read(buffer, msg->size, msg->offset);
/* Did it complete successfully? */
- if (result > 0)
+ if (result >= 0)
{
msg->result = ESUCCESS;
msg->size = result;
@@ -377,9 +377,10 @@
/* Take care that we may need to try again. */
msg->result = result;
}
- /* Send a reply if processed. */
+ /* Update FileDescriptor and send a reply if processed. */
if (msg->result != EAGAIN)
{
+ getFileDescriptor(files, msg->from, msg->fd)->position +=
msg->size;
msg->ipc(msg->from, Send, sizeof(*msg));
}
/* Release memory. And return. */
@@ -416,7 +417,7 @@
result = dev->write(buffer, msg->size, msg->offset);
/* Did it complete successfully? */
- if (result > 0)
+ if (result >= 0)
{
msg->result = ESUCCESS;
msg->size = result;
@@ -430,6 +431,7 @@
/* Send a reply if processed. */
if (msg->result != EAGAIN)
{
+ getFileDescriptor(files, msg->from, msg->fd)->position +=
msg->size;
msg->ipc(msg->from, Send, sizeof(*msg));
}
/* Release memory. And return. */
Other related posts:
- » [freenos] r294 committed - DeviceServer now correctly updates FileDescriptor::position.... - codesite-noreply
