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Annotation of embedaddon/ntp/lib/isc/win32/thread.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2004, 2005, 2007  Internet Systems Consortium, Inc. ("ISC")
                      3:  * Copyright (C) 1998-2001  Internet Software Consortium.
                      4:  *
                      5:  * Permission to use, copy, modify, and/or distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
                     10:  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
                     11:  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
                     12:  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
                     13:  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
                     14:  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
                     15:  * PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: 
                     18: /* $Id: thread.c,v 1.24 2007/06/19 23:47:19 tbox Exp $ */
                     19: 
                     20: #include <config.h>
                     21: 
                     22: #include <process.h>
                     23: 
                     24: #include <isc/thread.h>
                     25: 
                     26: isc_result_t
                     27: isc_thread_create(isc_threadfunc_t start, isc_threadarg_t arg,
                     28:                  isc_thread_t *threadp)
                     29: {
                     30:        isc_thread_t thread;
                     31:        unsigned int id;
                     32: 
                     33:        thread = (isc_thread_t)_beginthreadex(NULL, 0, start, arg, 0, &id);
                     34:        if (thread == NULL) {
                     35:                /* XXX */
                     36:                return (ISC_R_UNEXPECTED);
                     37:        }
                     38: 
                     39:        *threadp = thread;
                     40: 
                     41:        return (ISC_R_SUCCESS);
                     42: }
                     43: 
                     44: isc_result_t
                     45: isc_thread_join(isc_thread_t thread, isc_threadresult_t *rp) {
                     46:        DWORD result;
                     47:        DWORD threadrc;
                     48: 
                     49:        result = WaitForSingleObject(thread, INFINITE);
                     50:        if (result != WAIT_OBJECT_0) {
                     51:                /* XXX */
                     52:                return (ISC_R_UNEXPECTED);
                     53:        }
                     54:        if (rp != NULL) {
                     55:                if(!GetExitCodeThread(thread, &threadrc)) {
                     56:                        /* XXX */
                     57:                        return (ISC_R_UNEXPECTED);
                     58:                }
                     59:                *rp = threadrc;
                     60:        }
                     61:        (void)CloseHandle(thread);
                     62: 
                     63:        return (ISC_R_SUCCESS);
                     64: }
                     65: 
                     66: void
                     67: isc_thread_setconcurrency(unsigned int level) {
                     68:        /*
                     69:         * This is unnecessary on Win32 systems, but is here so that the
                     70:         * call exists
                     71:         */
                     72: }
                     73: 
                     74: void *
                     75: isc_thread_key_getspecific(isc_thread_key_t key) {
                     76:        return(TlsGetValue(key));
                     77: }
                     78: 
                     79: int
                     80: isc_thread_key_setspecific(isc_thread_key_t key, void *value) {
                     81:        return (TlsSetValue(key, value) ? 0 : GetLastError());
                     82: }
                     83: 
                     84: int
                     85: isc_thread_key_create(isc_thread_key_t *key, void (*func)(void *)) {
                     86:        *key = TlsAlloc();
                     87: 
                     88:        return ((*key != -1) ? 0 : GetLastError());
                     89: }
                     90: 
                     91: int
                     92: isc_thread_key_delete(isc_thread_key_t key) {
                     93:        return (TlsFree(key) ? 0 : GetLastError());
                     94: }