Back when we had RAC this was a vaguely meaningful thing. Since then it's been a glorified (and confusing) wrapper around xf86BlockSIGIO. Note that the APM and VT switch code are unusual relative to other code that cares about SIGIO state. Most callers push a SIGIO disable to create a critical section for the duration of the caller's stack frame, but those two effectively disable SIGIO after their return and re-enable on their next entry. Reviewed-by: Tiago Vignatti <tigo.vignatti@nokia.com> Signed-off-by: Adam Jackson <ajax@redhat.com> |
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xfree86 | ||
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Makefile.am |