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libringbuffer shm: be resilient to app crash between shm_open and shm_unlink
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fri, 26 Aug 2011 12:54:14 +0000 (08:54 -0400)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fri, 26 Aug 2011 12:54:14 +0000 (08:54 -0400)
Leak at most a single shm if an application crashes. By unlinking the
shm before every open attempt, we are certain to never retry endlessly
in case of crash of another application between the open and unlink.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

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