VFS utilities.

util/fsutil/mode.go

@@ -1,4 +1,4 @@
-// Package fsutil implements filesystem utility functions.
+// Package fsutil implements filesystem utilities.
 package fsutil
 
 import (

util/ioutil/ioutil.go

@@ -1,2 +1,2 @@
-// Package ioutil implements I/O utility functions.
+// Package ioutil implements I/O utilities.
 package ioutil

util/osutil/osutil.go

@@ -1,2 +1,2 @@
-// Package osutil implements operating system utility functions.
+// Package osutil implements operating system utilities.
 package osutil

util/vfsutil/wrap.go

@@ -0,0 +1,132 @@
+// Package vtabutil implements virtual filesystem utilities.
+package vfsutil
+
+import (
+	"github.com/ncruces/go-sqlite3"
+	"github.com/ncruces/go-sqlite3/vfs"
+)
+
+// WrapSharedMemory helps wrap [vfs.FileSharedMemory].
+func WrapSharedMemory(f vfs.File) vfs.SharedMemory {
+	if f, ok := f.(vfs.FileSharedMemory); ok {
+		return f.SharedMemory()
+	}
+	return nil
+}
+
+// WrapChunkSize helps wrap [vfs.FileChunkSize].
+func WrapChunkSize(f vfs.File, size int) {
+	if f, ok := f.(vfs.FileChunkSize); ok {
+		f.ChunkSize(size)
+	}
+}
+
+// WrapSizeHint helps wrap [vfs.FileSizeHint].
+func WrapSizeHint(f vfs.File, size int64) error {
+	if f, ok := f.(vfs.FileSizeHint); ok {
+		return f.SizeHint(size)
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapHasMoved helps wrap [vfs.FileHasMoved].
+func WrapHasMoved(f vfs.File) (bool, error) {
+	if f, ok := f.(vfs.FileHasMoved); ok {
+		return f.HasMoved()
+	}
+	return false, sqlite3.NOTFOUND
+}
+
+// WrapOverwrite helps wrap [vfs.FileOverwrite].
+func WrapOverwrite(f vfs.File) error {
+	if f, ok := f.(vfs.FileOverwrite); ok {
+		return f.Overwrite()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapPersistentWAL helps wrap [vfs.FilePersistentWAL].
+func WrapPersistentWAL(f vfs.File) bool {
+	if f, ok := f.(vfs.FilePersistentWAL); ok {
+		return f.PersistentWAL()
+	}
+	return false
+}
+
+// WrapSetPersistentWAL helps wrap [vfs.FilePersistentWAL].
+func WrapSetPersistentWAL(f vfs.File, keepWAL bool) {
+	if f, ok := f.(vfs.FilePersistentWAL); ok {
+		f.SetPersistentWAL(keepWAL)
+	}
+}
+
+// WrapPowersafeOverwrite helps wrap [vfs.FilePowersafeOverwrite].
+func WrapPowersafeOverwrite(f vfs.File) bool {
+	if f, ok := f.(vfs.FilePowersafeOverwrite); ok {
+		return f.PowersafeOverwrite()
+	}
+	return false
+}
+
+// WrapSetPowersafeOverwrite helps wrap [vfs.FilePowersafeOverwrite].
+func WrapSetPowersafeOverwrite(f vfs.File, psow bool) {
+	if f, ok := f.(vfs.FilePowersafeOverwrite); ok {
+		f.SetPowersafeOverwrite(psow)
+	}
+}
+
+// WrapCommitPhaseTwo helps wrap [vfs.FileCommitPhaseTwo].
+func WrapCommitPhaseTwo(f vfs.File) error {
+	if f, ok := f.(vfs.FileCommitPhaseTwo); ok {
+		return f.CommitPhaseTwo()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapBeginAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
+func WrapBeginAtomicWrite(f vfs.File) error {
+	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
+		return f.BeginAtomicWrite()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapCommitAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
+func WrapCommitAtomicWrite(f vfs.File) error {
+	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
+		return f.CommitAtomicWrite()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapRollbackAtomicWrite helps wrap [vfs.FileBatchAtomicWrite].
+func WrapRollbackAtomicWrite(f vfs.File) error {
+	if f, ok := f.(vfs.FileBatchAtomicWrite); ok {
+		return f.RollbackAtomicWrite()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapCheckpointDone helps wrap [vfs.FileCheckpoint].
+func WrapCheckpointDone(f vfs.File) error {
+	if f, ok := f.(vfs.FileCheckpoint); ok {
+		return f.CheckpointDone()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapCheckpointStart helps wrap [vfs.FileCheckpoint].
+func WrapCheckpointStart(f vfs.File) error {
+	if f, ok := f.(vfs.FileCheckpoint); ok {
+		return f.CheckpointStart()
+	}
+	return sqlite3.NOTFOUND
+}
+
+// WrapPragma helps wrap [vfs.FilePragma].
+func WrapPragma(f vfs.File, name, value string) (string, error) {
+	if f, ok := f.(vfs.FilePragma); ok {
+		return f.Pragma(name, value)
+	}
+	return "", sqlite3.NOTFOUND
+}

util/vtabutil/vtabutil.go

@@ -1,2 +1,2 @@
-// Package vtabutil implements virtual table utility functions.
+// Package vtabutil implements virtual table utilities.
 package vtabutil