Mark Charlebois 7e7513bc15 POSIX: change pthreads to px4_tasks in simulator
The simulator was using pthread APIs directly so calls to px4_getpid()
would fail since the task ID was not known. Changed simulator to use
px4_task_spawn_cmd.

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
2015-06-13 16:44:29 -07:00
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