tools/tests/testkext/testthreadcall.cpp

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