[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.8-153-g8772093

[dsmith at sourceware dot org]

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- Log -----------------------------------------------------------------
commit 8772093db493fc3309b2c29dbdf738ce1645cc88
Author: David Smith <dsmith@redhat.com>
Date:   Wed Jul 15 11:16:51 2009 -0500

    Implemented ring_buffer iterators.
    * runtime/transport/ring_buffer.c (_stp_ring_buffer_empty_cpu): New function.
      (_stp_ring_buffer_empty): Ditto.
      (_stp_ring_buffer_iterator_increment): Ditto.
      (_stp_tracing_wait_pipe): Calls _stp_ring_buffer_empty() instead of
      ring_buffer_empty().
      (_stp_peek_next_event): Looks at iterators first.
      (_stp_find_next_event): Calls _stp_ring_buffer_empty_cpu() and
      increments iterator.
      (_stp_data_read_trace): Opens and closes ring_buffer iterators.
      (_stp_data_poll_trace): Calls _stp_ring_buffer_empty().
      (__stp_relay_wakeup_timer): Ditto.
    * runtime/transport/control.c (_stp_ctl_write_cmd): Increased level
      required to get a debug print.

-----------------------------------------------------------------------

Summary of changes:
 runtime/transport/control.c     |    3 +-
 runtime/transport/ring_buffer.c |  128 +++++++++++++++++++++++++++++++++------
 2 files changed, 110 insertions(+), 21 deletions(-)


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