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Snapshot documentation updates. Comment changes only - no changes to code.

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FossilOrigin-Name: ef51a398a04963508389ffe2f9d8359c1ec48261
This commit is contained in:
drh
2015-12-10 22:48:22 +00:00
parent 7116dc60dc
commit e230a8994e
4 changed files with 98 additions and 68 deletions
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6
src/wal.c
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@@ -3269,6 +3269,10 @@ int sqlite3WalHeapMemory(Wal *pWal){
}
#ifdef SQLITE_ENABLE_SNAPSHOT
/* Create a snapshot object. The content of a snapshot is opaque to
** every other subsystem, so the WAL module can put whatever it needs
** in the object.
*/
int sqlite3WalSnapshotGet(Wal *pWal, sqlite3_snapshot **ppSnapshot){
int rc = SQLITE_OK;
WalIndexHdr *pRet;
@@ -3286,6 +3290,8 @@ int sqlite3WalSnapshotGet(Wal *pWal, sqlite3_snapshot **ppSnapshot){
return rc;
}
/* Try to open on pSnapshot when the next read-transaction starts
*/
void sqlite3WalSnapshotOpen(Wal *pWal, sqlite3_snapshot *pSnapshot){
pWal->pSnapshot = (WalIndexHdr*)pSnapshot;
}