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Refactoring the VFS-SHM methods used by WAL. This version compiles and

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runs non-WAL test cases but crashes and burns on wal.test.

FossilOrigin-Name: 2b00152c1ac0b3735aa6cfab61259ff04d81c701
This commit is contained in:
drh
2010-05-12 18:01:39 +00:00
parent eaf52d883a
commit d9e5c4f6ed
16 changed files with 1061 additions and 1045 deletions
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5
src/wal.h
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@@ -41,8 +41,8 @@
typedef struct Wal Wal;
/* Open and close a connection to a write-ahead log. */
int sqlite3WalOpen(sqlite3_vfs*, const char *zDb, Wal **ppWal);
int sqlite3WalClose(Wal *pWal, sqlite3_file *pFd, int sync_flags, int, u8 *);
int sqlite3WalOpen(sqlite3_vfs*, sqlite3_file*, const char *zName, Wal**);
int sqlite3WalClose(Wal *pWal, int sync_flags, int, u8 *);
/* Used by readers to open (lock) and close (unlock) a snapshot. A
** snapshot is like a read-transaction. It is the state of the database
@@ -81,7 +81,6 @@ int sqlite3WalFrames(Wal *pWal, int, PgHdr *, Pgno, int, int);
/* Copy pages from the log to the database file */
int sqlite3WalCheckpoint(
Wal *pWal, /* Write-ahead log connection */
sqlite3_file *pFd, /* File descriptor open on db file */
int sync_flags, /* Flags to sync db file with (or 0) */
int nBuf, /* Size of buffer nBuf */
u8 *zBuf, /* Temporary buffer to use */