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