Changeset 75704 in vbox for trunk/include

Timestamp:

Nov 25, 2018 1:44:09 AM (6 years ago)

Author:

vboxsync

Message:

IPRT/r0drv/darwin: RTSemEventSignal and RTSemEventMultiSignal seems to work fine with interrupts disabled and/or from interrupt context. bugref:4686

File:

• trunk/include/iprt/semaphore.h (modified) (2 diffs)

trunk/include/iprt/semaphore.h

@@ -164 +164 @@
  *          system specific whether it works in interrupt context or with
  *          interrupts disabled.
+ *
+ *          ring-0/Darwin: This works when interrupts are disabled and thereby
+ *          in interrupt context, except it cannot race semaphore destruction as
+ *          the allocator does not work under these circumstances.
  */
 RTDECL(int)  RTSemEventSignal(RTSEMEVENT hEventSem);
@@ -325 +329 @@
  *          system specific whether it works in interrupt context or with
  *          interrupts disabled.
+ *
+ *          ring-0/Darwin: This works when interrupts are disabled and thereby
+ *          in interrupt context, except it cannot race semaphore destruction as
+ *          the allocator does not work under these circumstances.
  */
 RTDECL(int)  RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem);