First working version that actually produces output.

2009-03-09  David Smith  <dsmith@redhat.com>

	* print_new.c (stp_print_flush): Calls _stp_data_write_reserve()
	and _stp_data_write_commit().
	* transport/ring_buffer.c (__stp_alloc_ring_buffer): Sets up a
	default buffer size of STP_BUFFER_SIZE;
	(trace_seq_reset): New function.
	(peek_next_entry): New function.
	(__find_next_entry): New function.
	(find_next_entry_inc): New function.
	(_stp_data_read_trace): Uses find_next_entry_inc() to get the next
	entry, then calls _stp_entry_to_user() to copy it to the user's
	buffer, then calls ring_buffer_consume() to consume it.
	(_stp_data_write_reserve): New function.
	(_stp_data_write_commit): New function.
	* transport/transport.c (_stp_transport_close): Calls functions
	that were ifdef'ed out.
	* transport/transport.h (struct _stp_entry): Added _stp_entry
	definition and _stp_data_write_reserve()/_stp_data_write_commit()
	prototypes.

1 files changed, 9 insertions, 8 deletions

diff --git a/runtime/print_new.c b/runtime/print_new.c
index bebaa19c..2759ebcf 100644
--- a/runtime/print_new.c
+++ b/runtime/print_new.c
@@ -23,6 +23,7 @@ void EXPORT_FN(stp_print_flush) (_stp_pbuf *pb)
 	uint32_t len = pb->len;
 
 	/* check to see if there is anything in the buffer */
+	dbug_trans(1, "len = %ud\n", len);
 	if (likely (len == 0))
 		return;
 
@@ -54,16 +55,16 @@ void EXPORT_FN(stp_print_flush) (_stp_pbuf *pb)
 	} 
 #else
 	{
-		void *buf;
+		struct _stp_entry *entry;
 		unsigned long flags;
+
+		dbug_trans(1, "calling _stp_data_write...\n");
 		spin_lock_irqsave(&_stp_print_lock, flags);
-#if 0
-		buf = utt_reserve(_stp_utt, len);
-#else
-		buf = NULL;
-#endif
-		if (likely(buf))
-			memcpy(buf, pb->buf, len);
+		entry = _stp_data_write_reserve(len);
+		if (likely(entry)) {
+			memcpy(entry->buf, pb->buf, len);
+			_stp_data_write_commit(entry);
+		}
 		else
 			atomic_inc (&_stp_transport_failures);
 		spin_unlock_irqrestore(&_stp_print_lock, flags);