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Use __atomic_load_n() and __atomic_store_n() for a few more things where they are available.

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FossilOrigin-Name: a49f8ec552bede7da731e0571ccf49de1a30e7be3a5673150436c8b411ba6ffc
This commit is contained in:
dan
2020-03-30 13:35:05 +00:00
parent 3e42b99175
commit 892edb69c4
11 changed files with 44 additions and 41 deletions
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14
src/wal.c
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@@ -258,18 +258,6 @@ int sqlite3WalTrace = 0;
# define WALTRACE(X)
#endif
/*
** WAL mode depends on atomic aligned 32-bit loads and stores in a few
** places. The following macros try to make this explicit.
*/
#if GCC_VERSION>=5004000
# define AtomicLoad(PTR) __atomic_load_n((PTR),__ATOMIC_RELAXED)
# define AtomicStore(PTR,VAL) __atomic_store_n((PTR),(VAL),__ATOMIC_RELAXED)
#else
# define AtomicLoad(PTR) (*(PTR))
# define AtomicStore(PTR,VAL) (*(PTR) = (VAL))
#endif
/*
** The maximum (and only) versions of the wal and wal-index formats
** that may be interpreted by this version of SQLite.
@@ -1891,7 +1879,7 @@ static int walCheckpoint(
while( rc==SQLITE_OK && 0==walIteratorNext(pIter, &iDbpage, &iFrame) ){
i64 iOffset;
assert( walFramePgno(pWal, iFrame)==iDbpage );
if( db->u1.isInterrupted ){
if( AtomicLoad(&db->u1.isInterrupted) ){
rc = db->mallocFailed ? SQLITE_NOMEM_BKPT : SQLITE_INTERRUPT;
break;
}