factotum/libressl-portable
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make locks self-initialize, switch to critical sections

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This commit is contained in:
Brent Cook 2019-01-01 02:40:59 -06:00
parent 0f0bec5a76
commit e508171956
1 changed files with 13 additions and 12 deletions
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25
crypto/compat/crypto_lock_win.c
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@ -19,16 +19,7 @@
#include <openssl/crypto.h>
static HANDLE locks[CRYPTO_NUM_LOCKS];
void
crypto_init_locks(void)
{
int i;
for (i = 0; i < CRYPTO_NUM_LOCKS; i++)
locks[i] = CreateMutex(NULL, FALSE, NULL);
}
static volatile LPCRITICAL_SECTION locks[CRYPTO_NUM_LOCKS] = { NULL };
void
CRYPTO_lock(int mode, int type, const char *file, int line)
@ -36,10 +27,20 @@ CRYPTO_lock(int mode, int type, const char *file, int line)
if (type < 0 || type >= CRYPTO_NUM_LOCKS)
return;
if (locks[type] == NULL) {
LPCRITICAL_SECTION lcs = malloc(sizeof(CRITICAL_SECTION));
InitializeCriticalSection(lcs);
if (InterlockedCompareExchangePointer((void **)&locks[type], (void *)lcs, NULL) != NULL)
{
DeleteCriticalSection(lcs);
free(lcs);
}
}
if (mode & CRYPTO_LOCK)
WaitForSingleObject(locks[type], INFINITE);
EnterCriticalSection(locks[type]);
else
ReleaseMutex(locks[type]);
LeaveCriticalSection(locks[type]);
}
int