Updated USRP's circular_buffer with the same corrections as for

gr-audio-osx.  These corrections impact OSX/Darwin only.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@6146 221aa14e-8319-0410-a670-987f0aec2ac5

diff --git a/usrp/host/lib/legacy/circular_buffer.h b/usrp/host/lib/legacy/circular_buffer.h
index 3025d7b50152959a8389a8b0ddb4d5c55f778149..4b5e7ba3518867197b7b60fa8335a10ed285528d 100644 (file)
--- a/usrp/host/lib/legacy/circular_buffer.h
+++ b/usrp/host/lib/legacy/circular_buffer.h
@@ -138,8 +138,9 @@ public:
 
   int enqueue (T* buf, UInt32 bufLen_I) {
 #if DO_DEBUG
-    fprintf (stderr, "enqueue: buf = %X, bufLen = %ld.\n",
-            (unsigned int)buf, bufLen_I);
+    fprintf (stderr, "enqueue: buf = %X, bufLen = %ld, #av_wr = %ld, "
+            "#av_rd = %ld.\n", (unsigned int)buf, bufLen_I,
+            d_n_avail_write_I, d_n_avail_read_I);
 #endif
     if (bufLen_I > d_bufLen_I) {
       fprintf (stderr, "cannot add buffer longer (%ld"
@@ -158,6 +159,8 @@ public:
       d_internal->unlock ();
       return (2);
     }
+    // set the return value to 1: success; change if needed
+    int retval = 1;
     if (bufLen_I > d_n_avail_write_I) {
       if (d_doWriteBlock) {
        while (bufLen_I > d_n_avail_write_I) {
@@ -184,7 +187,7 @@ public:
 #if DO_DEBUG
        fprintf (stderr, "circular_buffer::enqueue: overflow\n");
 #endif
-       return (-1);
+       retval = -1;
       }
     }
     UInt32 n_now_I = d_bufLen_I - d_writeNdx_I, n_start_I = 0;
@@ -202,7 +205,7 @@ public:
     d_n_avail_write_I -= bufLen_I;
     d_readBlock->signal ();
     d_internal->unlock ();
-    return (1);
+    return (retval);
   };
 
 /*
@@ -226,11 +229,11 @@ public:
  *     buffer length is larger than the instantiated buffer length
  */
 
-
   int dequeue (T* buf, UInt32* bufLen_I) {
 #if DO_DEBUG
-    fprintf (stderr, "dequeue: buf = %X, *bufLen = %ld.\n",
-            (unsigned int)buf, *bufLen_I);
+    fprintf (stderr, "dequeue: buf = %X, *bufLen = %ld, #av_wr = %ld, "
+            "#av_rd = %ld.\n", (unsigned int)buf, *bufLen_I,
+            d_n_avail_write_I, d_n_avail_read_I);
 #endif
     if (!bufLen_I)
       throw std::runtime_error ("circular_buffer::dequeue(): "