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      1 /*	$NetBSD: thread.h,v 1.2 2024/08/18 20:47:16 christos Exp $	*/
      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 */
    103