1 /*
2  *  testthreadcall.cpp
3  *  testkext
4  *
5  */
6 
7 #define ABSOLUTETIME_SCALAR_TYPE
8 
9 #include "testthreadcall.h"
10 
11 #include <kern/thread_call.h>
12 
13 #define super IOService
14 OSDefineMetaClassAndStructors(testthreadcall, super);
15 
16 extern "C" {
17 
18 static void thread_call_test_func(thread_call_param_t param0,
19 								  thread_call_param_t param1);
20 
21 }
22 
23 bool
24 testthreadcall::start( IOService * provider )
25 {
26 	boolean_t ret;
27 	uint64_t deadline;
28 
29     IOLog("%s\n", __PRETTY_FUNCTION__);
30 
31     if (!super::start(provider)) {
32         return false;
33     }
34 
35     IOLog("Attempting thread_call_allocate\n");
36 	tcall = thread_call_allocate(thread_call_test_func, this);
37     IOLog("thread_call_t %p\n", tcall);
38 
39 	tlock = IOSimpleLockAlloc();
40 	IOLog("tlock %p\n", tlock);
41 
42 	clock_interval_to_deadline(5, NSEC_PER_SEC, &deadline);
43 	IOLog("%d sec deadline is %llu\n", 5, deadline);
44 
45 	ret = thread_call_enter_delayed(tcall, deadline);
46 
47     return true;
48 }
49 
50 static void thread_call_test_func(thread_call_param_t param0,
51 								  thread_call_param_t param1)
52 {
53 	testthreadcall *self = (testthreadcall *)param0;
54 
55 	IOLog("thread_call_test_func %p %p\n", param0, param1);
56 
57 	IOSimpleLockLock(self->tlock);
58 	IOSimpleLockUnlock(self->tlock);
59 
60 #if 1
61 	IOSimpleLockLock(self->tlock);
62 #else
63 	IOSimpleLockUnlock(self->tlock);
64 #endif
65 }
66