tools/tests/testkext/testthreadcall.cpp

   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 }