win32/win32thread.h

   1 /*typedef CRITICAL_SECTION perl_mutex;*/
   2 typedef HANDLE perl_mutex;
   3 typedef HANDLE perl_cond;
   4 typedef DWORD perl_key;
   5 typedef HANDLE perl_thread;
   6
   7 /* XXX Critical Sections used instead of mutexes: lightweight,
   8  * but can't be communicated to child processes, and can't get
   9  * HANDLE to it for use elsewhere
  10  */
  11 /*
  12 #define MUTEX_INIT(m) InitializeCriticalSection(m)
  13 #define MUTEX_LOCK(m) EnterCriticalSection(m)
  14 #define MUTEX_UNLOCK(m) LeaveCriticalSection(m)
  15 #define MUTEX_DESTROY(m) DeleteCriticalSection(m)
  16 */
  17
  18 #define MUTEX_INIT(m) \
  19     STMT_START {                                                \
  20         if ((*(m) = CreateMutex(NULL,FALSE,NULL)) == NULL)      \
  21             croak("panic: MUTEX_INIT");                         \
  22     } STMT_END
  23 #define MUTEX_LOCK(m) \
  24     STMT_START {                                                \
  25         if (WaitForSingleObject(*(m),INFINITE) == WAIT_FAILED)  \
  26             croak("panic: MUTEX_LOCK");                         \
  27     } STMT_END
  28 #define MUTEX_UNLOCK(m) \
  29     STMT_START {                                                \
  30         if (ReleaseMutex(*(m)) == 0)                            \
  31             croak("panic: MUTEX_UNLOCK");                       \
  32     } STMT_END
  33 #define MUTEX_DESTROY(m) \
  34     STMT_START {                                                \
  35         if (CloseHandle(*(m)) == 0)                             \
  36             croak("panic: MUTEX_DESTROY");                      \
  37     } STMT_END
  38
  39 #define COND_INIT(c) \
  40     STMT_START {                                                \
  41         if ((*(c) = CreateEvent(NULL,TRUE,FALSE,NULL)) == NULL) \
  42             croak("panic: COND_INIT");                          \
  43     } STMT_END
  44 #define COND_SIGNAL(c) \
  45     STMT_START {                                                \
  46         if (PulseEvent(*(c)) == 0)                              \
  47             croak("panic: COND_SIGNAL (%ld)",GetLastError());   \
  48     } STMT_END
  49 #define COND_BROADCAST(c) \
  50     STMT_START {                                                \
  51         if (PulseEvent(*(c)) == 0)                              \
  52             croak("panic: COND_BROADCAST");                     \
  53     } STMT_END
  54 /* #define COND_WAIT(c, m) \
  55     STMT_START {                                                \
  56         if (WaitForSingleObject(*(c),INFINITE) == WAIT_FAILED)  \
  57             croak("panic: COND_WAIT");                          \
  58     } STMT_END
  59 */
  60 #define COND_WAIT(c, m) \
  61     STMT_START {                                                \
  62         if (SignalObjectAndWait(*(m),*(c),INFINITE,FALSE) == WAIT_FAILED)\
  63             croak("panic: COND_WAIT");                          \
  64         else                                                    \
  65             MUTEX_LOCK(m);                                      \
  66     } STMT_END
  67 #define COND_DESTROY(c) \
  68     STMT_START {                                                \
  69         if (CloseHandle(*(c)) == 0)                             \
  70             croak("panic: COND_DESTROY");                       \
  71     } STMT_END
  72
  73 #define DETACH(t) \
  74     STMT_START {                                                \
  75         if (CloseHandle((t)->self) == 0) {                      \
  76             MUTEX_UNLOCK(&(t)->mutex);                          \
  77             croak("panic: DETACH");                             \
  78         }                                                       \
  79     } STMT_END
  80
  81 #define THR ((struct thread *) TlsGetValue(thr_key))
  82
  83 #define HAVE_THREAD_INTERN
  84
  85 #define JOIN(t, avp)                                                    \
  86     STMT_START {                                                        \
  87         if ((WaitForSingleObject((t)->self,INFINITE) == WAIT_FAILED)    \
  88              || (GetExitCodeThread((t)->self,(LPDWORD)(avp)) == 0))     \
  89             croak("panic: JOIN");                                       \
  90     } STMT_END
  91
  92 #define SET_THR(t)                                      \
  93     STMT_START {                                        \
  94         if (TlsSetValue(thr_key, (void *) (t)) == 0)    \
  95             croak("panic: TlsSetValue");                \
  96     } STMT_END
  97
  98 #define THREAD_CREATE(t, f)     thread_create(t, f)
  99 #define THREAD_POST_CREATE(t)   NOOP
 100 #define THREAD_RET_TYPE         DWORD WINAPI
 101 #define THREAD_RET_CAST(p)      ((DWORD)(p))
 102 #define YIELD                   Sleep(0)