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Overview
| Comment: | Fix compilation issue with MSVC due to a misplaced variable declaration. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 9588b345d09daaa49d24d7fb6cab732e64e5474e |
| User & Date: | mistachkin 2014-10-27 19:58:29 |
Context
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2014-10-27
| ||
| 20:14 | Remove a small amount of unnecessary #ifdeffery from random.c. check-in: 2b9340c8 user: drh tags: trunk | |
| 19:58 | Fix compilation issue with MSVC due to a misplaced variable declaration. check-in: 9588b345 user: mistachkin tags: trunk | |
| 19:42 | Fix harmless compiler warning in an assert statement. check-in: d33a1ff3 user: mistachkin tags: trunk | |
Changes
Changes to src/random.c.
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/*
** Return N random bytes.
*/
void sqlite3_randomness(int N, void *pBuf){
unsigned char t;
unsigned char *zBuf = pBuf;
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return;
#endif
/* The "wsdPrng" macro will resolve to the pseudo-random number generator
** state vector. If writable static data is unsupported on the target,
** we have to locate the state vector at run-time. In the more common
** case where writable static data is supported, wsdPrng can refer directly
** to the "sqlite3Prng" state vector declared above.
*/
#ifdef SQLITE_OMIT_WSD
................................................................................
struct sqlite3PrngType *p = &GLOBAL(struct sqlite3PrngType, sqlite3Prng);
# define wsdPrng p[0]
#else
# define wsdPrng sqlite3Prng
#endif
#if SQLITE_THREADSAFE
sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PRNG);
sqlite3_mutex_enter(mutex);
#endif
if( N<=0 || pBuf==0 ){
wsdPrng.isInit = 0;
sqlite3_mutex_leave(mutex);
return;
}
/* Initialize the state of the random number generator once,
** the first time this routine is called. The seed value does
** not need to contain a lot of randomness since we are not
** trying to do secure encryption or anything like that...
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/*
** Return N random bytes.
*/
void sqlite3_randomness(int N, void *pBuf){
unsigned char t;
unsigned char *zBuf = pBuf;
/* The "wsdPrng" macro will resolve to the pseudo-random number generator
** state vector. If writable static data is unsupported on the target,
** we have to locate the state vector at run-time. In the more common
** case where writable static data is supported, wsdPrng can refer directly
** to the "sqlite3Prng" state vector declared above.
*/
#ifdef SQLITE_OMIT_WSD
................................................................................
struct sqlite3PrngType *p = &GLOBAL(struct sqlite3PrngType, sqlite3Prng);
# define wsdPrng p[0]
#else
# define wsdPrng sqlite3Prng
#endif
#if SQLITE_THREADSAFE
sqlite3_mutex *mutex;
#endif
#ifndef SQLITE_OMIT_AUTOINIT
if( sqlite3_initialize() ) return;
#endif
#if SQLITE_THREADSAFE
mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PRNG);
sqlite3_mutex_enter(mutex);
#endif
if( N<=0 || pBuf==0 ){
wsdPrng.isInit = 0;
#if SQLITE_THREADSAFE
sqlite3_mutex_leave(mutex);
#endif
return;
}
/* Initialize the state of the random number generator once,
** the first time this routine is called. The seed value does
** not need to contain a lot of randomness since we are not
** trying to do secure encryption or anything like that...
|