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| author | Michael Bebenita <[email protected]> | 2010-07-28 00:01:31 -0700 |
|---|---|---|
| committer | Graydon Hoare <[email protected]> | 2010-07-28 20:30:29 -0700 |
| commit | c5e0ea727634cabda067c80520946eed7579cd96 (patch) | |
| tree | fcc140852b404ec4cc638c3c2c3c77d4f0591756 | |
| parent | Add peek method to circular buffer. (diff) | |
| download | rust-c5e0ea727634cabda067c80520946eed7579cd96.tar.xz rust-c5e0ea727634cabda067c80520946eed7579cd96.zip | |
Add comment explaining NULL case in circular_buffer::enqueue and add logging to ::dequeue.
| -rw-r--r-- | src/rt/circular_buffer.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/rt/circular_buffer.cpp b/src/rt/circular_buffer.cpp index 640809e0..1b626920 100644 --- a/src/rt/circular_buffer.cpp +++ b/src/rt/circular_buffer.cpp @@ -91,7 +91,8 @@ circular_buffer::enqueue(void *src) { /** * Copies data from this buffer to the "dst" address. The buffer is - * shrunk if possible. + * shrunk if possible. If the "dst" address is NULL, then the message + * is dequeued but is not copied. */ void circular_buffer::dequeue(void *dst) { @@ -100,6 +101,11 @@ circular_buffer::dequeue(void *dst) { I(dom, _unread <= _buffer_sz); I(dom, _buffer); + dom->log(rust_log::MEM | rust_log::COMM, + "circular_buffer dequeue " + "unread: %d, buffer_sz: %d, unit_sz: %d", + _unread, _buffer_sz, unit_sz); + if (dst != NULL) { memcpy(dst, &_buffer[_next], unit_sz); } |