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Remove the obsolete static mutexes. Use only the lastest static mutex code. (CVS 4259)

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FossilOrigin-Name: 6225cd461cdd2132eeb480aa4deb8986b7f63c15
This commit is contained in:
drh
2007-08-21 13:51:23 +00:00
parent 46abae817e
commit 51fc347a2e
6 changed files with 24 additions and 30 deletions
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10
src/random.c
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@@ -15,7 +15,7 @@
** Random numbers are used by some of the database backends in order
** to generate random integer keys for tables or random filenames.
**
** $Id: random.c,v 1.19 2007/08/21 10:44:16 drh Exp $
** $Id: random.c,v 1.20 2007/08/21 13:51:23 drh Exp $
*/
#include "sqliteInt.h"
@@ -91,9 +91,13 @@ static int randomByte(void){
*/
void sqlite3Randomness(int N, void *pBuf){
unsigned char *zBuf = pBuf;
sqlite3_mutex_enter(sqlite3_mutex_alloc(SQLITE_MUTEX_PRNG));
static sqlite3_mutex *mutex = 0;
if( mutex==0 ){
mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_PRNG);
}
sqlite3_mutex_enter(mutex);
while( N-- ){
*(zBuf++) = randomByte();
}
sqlite3_mutex_leave(sqlite3_mutex_alloc(SQLITE_MUTEX_PRNG));
sqlite3_mutex_leave(mutex);
}