From 3d3888c40ac46cbbd8851e9bc5e83557e0415887 Mon Sep 17 00:00:00 2001
From: ttsou
Date: Tue, 25 Aug 2009 18:46:14 -0400
Subject: non-blocking reap and fusb default buffer size change

---
 usrp/host/lib/fusb_libusb1.cc           | 17 +++++++++++------
 usrp/host/lib/fusb_sysconfig_libusb1.cc |  2 +-
 2 files changed, 12 insertions(+), 7 deletions(-)

(limited to 'usrp')

diff --git a/usrp/host/lib/fusb_libusb1.cc b/usrp/host/lib/fusb_libusb1.cc
index 0559022bb..6f1fc913f 100644
--- a/usrp/host/lib/fusb_libusb1.cc
+++ b/usrp/host/lib/fusb_libusb1.cc
@@ -268,8 +268,18 @@ bool
 fusb_devhandle_libusb1::_reap (bool ok_to_block_p)
 {
   int ret;
+  struct timeval tv;
 
-  if ((ret = libusb_handle_events(d_ctx)) < 0) {
+  if (ok_to_block_p) {
+    tv.tv_sec = 2;
+    tv.tv_usec =  0;
+  }
+  else {
+    tv.tv_sec = 0;
+    tv.tv_usec =  0;
+  }
+ 
+  if ((ret = libusb_handle_events_timeout(d_ctx, &tv)) < 0) {
     fprintf (stderr, "fusb::_reap libusb_handle_events()\n");
     return false;
   }
@@ -281,11 +291,6 @@ void
 fusb_devhandle_libusb1::_wait_for_completion ()
 {
 
-  int ret;
-  struct timeval tv;
-  tv.tv_sec = 1;
-  tv.tv_usec =  0;
-
   while (!d_pending_rqsts.empty ()) 
     if (!_reap(true)) 
       break; 
diff --git a/usrp/host/lib/fusb_sysconfig_libusb1.cc b/usrp/host/lib/fusb_sysconfig_libusb1.cc
index c82bfe9a1..a005f540d 100644
--- a/usrp/host/lib/fusb_sysconfig_libusb1.cc
+++ b/usrp/host/lib/fusb_sysconfig_libusb1.cc
@@ -25,7 +25,7 @@
 
 static const int MAX_BLOCK_SIZE = 16 * 1024;		// hard limit
 static const int DEFAULT_BLOCK_SIZE =   4 * 1024;
-static const int FUSB_BUFFER_SIZE = 2 * (1L << 20);	// 2 MB
+static const int FUSB_BUFFER_SIZE = 1 * (1L << 20);	// 1 MB
 
 struct libusb_context;
 
-- 
cgit