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This patch adds ipc_sendrecv() and opens the way for client/server communication.

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ipc_sendrecv() replaces ipc_sendwait() which was flawed. See ipc_sendrecv() for
how client/server communication works. Tested with page faults where the kernel
does an ipc_sendrecv() to faulty thread's pager and the pager successfully handles
the request, and returns back the result, which effectively restarts the faulty
thread.
This commit is contained in:
Bahadir Balban
2008-02-04 21:03:51 +00:00
parent 13ee470a33
commit 70d5ff33cd
5 changed files with 29 additions and 34 deletions
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2
src/arch/arm/exception.c
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@@ -59,7 +59,7 @@ void fault_ipc_to_pager(u32 faulty_pc, u32 fsr, u32 far)
offsetof(syscall_args_t, r3));
/* Send ipc to the task's pager */
ipc_sendwait(current->pagerid);
ipc_sendrecv(current->pagerid, current->pagerid);
/*
* Pager is now notified and handling the fault. We now sleep on