SysBios 6.32 equivalent to Bios 5 "LCK_pend" and "LCK_post"

Geraldine Maclear

Hello,

I have been asked to implement something similar to LCK_pend and LCK_post to protect memory which we suspect is being accessed by a 2nd thread while it is being used by the 1st thread.

By the way, I have already tried protecting the code which accesses this memory using a binary semaphore, GateTask_enter and GateTask_leave, intLock and intUnlock, Task_disable and Task_restore. None of these are helping.

So I'm looking for an equivalent to LCK_pend and LCK_post and cannot find anything in the documentation which looks similar. Is there something?

Thanks,
Annie

over 12 years ago

0 ToddMullanix over 12 years ago

TI__Guru* 96960 points

Did you look at GateMutex? It was modeled after LCK.

Todd

0 Geraldine Maclear over 12 years ago in reply to ToddMullanix

Expert 2145 points

Thanks Todd, I will try that. Is there a document which I could have checked to learn this?

This is the description of GateMutex in SPRUEX3I:

"GateMutex uses a binary Semaphore as the locking mechanism. Each
GateMutex instance has its own unique Semaphore. Because this gate can
potentially block, it should not be used a Swi or Hwi thread, and should only
be used by Task threads."

Thanks,
Annie

0 ToddMullanix over 12 years ago in reply to Geraldine Maclear

TI__Guru* 96960 points

Hi Annie,

It is noted in the Bios_Legacy_App_Note.pdf in the SYS/BIOS docs directory. It is also called SPRAAS7G.

Search for LCK in the document.

Todd

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SysBios 6.32 equivalent to Bios 5 "LCK_pend" and "LCK_post"