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Towards xFileControl.

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Nuno Cruces
2023-02-13 13:52:52 +00:00
parent f72c599d2d
commit 3aad1d5d79
2 changed files with 14 additions and 0 deletions
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1
sqlite3/main.c
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@@ -33,6 +33,7 @@ int go_write(sqlite3_file *, const void *, int iAmt, sqlite3_int64 iOfst);
int go_truncate(sqlite3_file *, sqlite3_int64 size);
int go_sync(sqlite3_file *, int flags);
int go_file_size(sqlite3_file *, sqlite3_int64 *pSize);
int go_file_control(sqlite3_file *pFile, int op, void *pArg);
int go_lock(sqlite3_file *pFile, int eLock);
int go_unlock(sqlite3_file *pFile, int eLock);

13
vfs.go
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@@ -45,6 +45,7 @@ func vfsInstantiate(ctx context.Context, r wazero.Runtime) (err error) {
env.NewFunctionBuilder().WithFunc(vfsLock).Export("go_lock")
env.NewFunctionBuilder().WithFunc(vfsUnlock).Export("go_unlock")
env.NewFunctionBuilder().WithFunc(vfsCheckReservedLock).Export("go_check_reserved_lock")
env.NewFunctionBuilder().WithFunc(vfsFileControl).Export("go_file_control")
_, err = env.Instantiate(ctx)
return err
}
@@ -304,3 +305,15 @@ func vfsFileSize(ctx context.Context, mod api.Module, pFile, pSize uint32) uint3
memory{mod}.writeUint64(pSize, uint64(off))
return _OK
}
func vfsFileControl(ctx context.Context, pFile, op, pArg uint32) uint32 {
// SQLite calls vfsFileControl with these opcodes:
// SQLITE_FCNTL_SIZE_HINT
// SQLITE_FCNTL_PRAGMA
// SQLITE_FCNTL_BUSYHANDLER
// SQLITE_FCNTL_HAS_MOVED
// SQLITE_FCNTL_SYNC
// SQLITE_FCNTL_COMMIT_PHASETWO
// SQLITE_FCNTL_PDB
return uint32(NOTFOUND)
}