external/bsd/bind/dist/lib/isc/win32/include/isc/thread.h

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2004, 2005, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
   5  * Copyright (C) 1998-2001  Internet Software Consortium.
   6  *
   7  * Permission to use, copy, modify, and/or distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  17  * PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 /* Id: thread.h,v 1.25 2009/09/29 04:37:08 marka Exp */
  21
  22 #ifndef ISC_THREAD_H
  23 #define ISC_THREAD_H 1
  24
  25 #include <windows.h>
  26
  27 #include <isc/lang.h>
  28 #include <isc/result.h>
  29
  30 /*
  31  * Inlines to help with wait retrun checking
  32  */
  33
  34 /* check handle for NULL and INVALID_HANDLE */
  35 inline BOOL IsValidHandle( HANDLE hHandle) {
  36     return ((hHandle != NULL) && (hHandle != INVALID_HANDLE_VALUE));
  37 }
  38
  39 /* validate wait return codes... */
  40 inline BOOL WaitSucceeded( DWORD dwWaitResult, DWORD dwHandleCount) {
  41     return ((dwWaitResult >= WAIT_OBJECT_0) &&
  42             (dwWaitResult < WAIT_OBJECT_0 + dwHandleCount));
  43 }
  44
  45 inline BOOL WaitAbandoned( DWORD dwWaitResult, DWORD dwHandleCount) {
  46     return ((dwWaitResult >= WAIT_ABANDONED_0) &&
  47             (dwWaitResult < WAIT_ABANDONED_0 + dwHandleCount));
  48 }
  49
  50 inline BOOL WaitTimeout( DWORD dwWaitResult) {
  51     return (dwWaitResult == WAIT_TIMEOUT);
  52 }
  53
  54 inline BOOL WaitFailed( DWORD dwWaitResult) {
  55     return (dwWaitResult == WAIT_FAILED);
  56 }
  57
  58 /* compute object indices for waits... */
  59 inline DWORD WaitSucceededIndex( DWORD dwWaitResult) {
  60     return (dwWaitResult - WAIT_OBJECT_0);
  61 }
  62
  63 inline DWORD WaitAbandonedIndex( DWORD dwWaitResult) {
  64     return (dwWaitResult - WAIT_ABANDONED_0);
  65 }
  66
  67
  68
  69 typedef HANDLE isc_thread_t;
  70 typedef DWORD isc_threadresult_t;
  71 typedef void * isc_threadarg_t;
  72 typedef isc_threadresult_t (WINAPI *isc_threadfunc_t)(isc_threadarg_t);
  73 typedef DWORD isc_thread_key_t;
  74
  75 #define isc_thread_self (unsigned long)GetCurrentThreadId
  76
  77 ISC_LANG_BEGINDECLS
  78
  79 isc_result_t
  80 isc_thread_create(isc_threadfunc_t, isc_threadarg_t, isc_thread_t *);
  81
  82 isc_result_t
  83 isc_thread_join(isc_thread_t, isc_threadresult_t *);
  84
  85 void
  86 isc_thread_setconcurrency(unsigned int level);
  87
  88 int
  89 isc_thread_key_create(isc_thread_key_t *key, void (*func)(void *));
  90
  91 int
  92 isc_thread_key_delete(isc_thread_key_t key);
  93
  94 void *
  95 isc_thread_key_getspecific(isc_thread_key_t);
  96
  97 int
  98 isc_thread_key_setspecific(isc_thread_key_t key, void *value);
  99
 100 ISC_LANG_ENDDECLS
 101
 102 #endif /* ISC_THREAD_H */