Changeset 01c3bb4 in mainline for kernel/generic/src/ipc/ipcrsc.c

Timestamp:

2017-11-25T15:43:25Z (8 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ce4a21a0

Parents:

98cb5e0d

Message:

Convert call-handling syscalls to capabilities

This commit modifies the behavior of sys_ipc_wait_for_call() to return a
capability handle for requests. This capability handle can be used
either by sys_ipc_answer*() to answer the call or by sys_ipc_forward*()
to forward it further along. Answering or forwarding the call results in
destruction of the respective capability. For requests and
notifications, sys_ipc_wait_for_call() returns CAP_NIL and sets call
flags accordingly.

File:

• kernel/generic/src/ipc/ipcrsc.c (modified) (1 diff)

kernel/generic/src/ipc/ipcrsc.c

@@ -136 +136 @@
 #include <cap/cap.h>
 #include <mm/slab.h>
-
-/** Find call_t * in call table according to callid.
- *
- * @todo Some speedup (hash table?)
- *
- * @param callid Userspace hash of the call. Currently it is the call structure
- *               kernel address.
- *
- * @return NULL on not found, otherwise pointer to the call structure.
- *
- */
-call_t *get_call(sysarg_t callid)
-{
-        call_t *result = NULL;
-        
-        irq_spinlock_lock(&TASK->answerbox.lock, true);
-        
-        list_foreach(TASK->answerbox.dispatched_calls, ab_link, call_t, call) {
-                if ((sysarg_t) call == callid) {
-                        result = call;
-                        break;
-                }
-        }
-        
-        irq_spinlock_unlock(&TASK->answerbox.lock, true);
-        return result;
-}
 
 static bool phone_reclaim(kobject_t *kobj)