56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* $OpenBSD: crypto_lock.c,v 1.1 2018/11/11 06:41:28 bcook Exp $ */
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/*
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* Copyright (c) 2018 Brent Cook <bcook@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <windows.h>
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#include <openssl/crypto.h>
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static HANDLE locks[CRYPTO_NUM_LOCKS];
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void
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crypto_init_locks(void)
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{
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int i;
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for (i = 0; i < CRYPTO_NUM_LOCKS; i++)
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locks[i] = CreateMutex(NULL, FALSE, NULL);
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}
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void
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CRYPTO_lock(int mode, int type, const char *file, int line)
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{
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if (type < 0 || type >= CRYPTO_NUM_LOCKS)
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return;
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if (mode & CRYPTO_LOCK)
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WaitForSingleObject(locks[type], INFINITE);
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else
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ReleaseMutex(locks[type]);
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}
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int
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CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
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int line)
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{
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int ret = 0;
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CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE, type, file, line);
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ret = *pointer + amount;
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*pointer = ret;
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CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE, type, file, line);
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return (ret);
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}
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