Make Storage Driver API calls context aware.

- Change driver interface to take a context as its first argument
     - Make newFileReader take a context as its first argument
     - Make newFileWriter take a context as its first argument
     - Make blobstore exists and delete take a context as a first argument
     - Pass the layerreader's context to the storage layer
     - Pass the app's context to purgeuploads
     - Store the app's context into the blobstore (was previously null)
     - Pass the trace'd context to the storage drivers

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
This commit is contained in:
Richard 2015-04-27 15:58:58 -07:00
parent c0d297c011
commit 5d9105bd25
30 changed files with 383 additions and 343 deletions

View file

@ -51,32 +51,32 @@ type Base struct {
}
// GetContent wraps GetContent of underlying storage driver.
func (base *Base) GetContent(path string) ([]byte, error) {
_, done := context.WithTrace(context.Background())
func (base *Base) GetContent(ctx context.Context, path string) ([]byte, error) {
ctx, done := context.WithTrace(ctx)
defer done("%s.GetContent(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) {
return nil, storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.GetContent(path)
return base.StorageDriver.GetContent(ctx, path)
}
// PutContent wraps PutContent of underlying storage driver.
func (base *Base) PutContent(path string, content []byte) error {
_, done := context.WithTrace(context.Background())
func (base *Base) PutContent(ctx context.Context, path string, content []byte) error {
ctx, done := context.WithTrace(context.Background())
defer done("%s.PutContent(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) {
return storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.PutContent(path, content)
return base.StorageDriver.PutContent(ctx, path, content)
}
// ReadStream wraps ReadStream of underlying storage driver.
func (base *Base) ReadStream(path string, offset int64) (io.ReadCloser, error) {
_, done := context.WithTrace(context.Background())
func (base *Base) ReadStream(ctx context.Context, path string, offset int64) (io.ReadCloser, error) {
ctx, done := context.WithTrace(context.Background())
defer done("%s.ReadStream(%q, %d)", base.Name(), path, offset)
if offset < 0 {
@ -87,12 +87,12 @@ func (base *Base) ReadStream(path string, offset int64) (io.ReadCloser, error) {
return nil, storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.ReadStream(path, offset)
return base.StorageDriver.ReadStream(ctx, path, offset)
}
// WriteStream wraps WriteStream of underlying storage driver.
func (base *Base) WriteStream(path string, offset int64, reader io.Reader) (nn int64, err error) {
_, done := context.WithTrace(context.Background())
func (base *Base) WriteStream(ctx context.Context, path string, offset int64, reader io.Reader) (nn int64, err error) {
ctx, done := context.WithTrace(ctx)
defer done("%s.WriteStream(%q, %d)", base.Name(), path, offset)
if offset < 0 {
@ -103,36 +103,36 @@ func (base *Base) WriteStream(path string, offset int64, reader io.Reader) (nn i
return 0, storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.WriteStream(path, offset, reader)
return base.StorageDriver.WriteStream(ctx, path, offset, reader)
}
// Stat wraps Stat of underlying storage driver.
func (base *Base) Stat(path string) (storagedriver.FileInfo, error) {
_, done := context.WithTrace(context.Background())
func (base *Base) Stat(ctx context.Context, path string) (storagedriver.FileInfo, error) {
ctx, done := context.WithTrace(ctx)
defer done("%s.Stat(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) {
return nil, storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.Stat(path)
return base.StorageDriver.Stat(ctx, path)
}
// List wraps List of underlying storage driver.
func (base *Base) List(path string) ([]string, error) {
_, done := context.WithTrace(context.Background())
func (base *Base) List(ctx context.Context, path string) ([]string, error) {
ctx, done := context.WithTrace(ctx)
defer done("%s.List(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) && path != "/" {
return nil, storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.List(path)
return base.StorageDriver.List(ctx, path)
}
// Move wraps Move of underlying storage driver.
func (base *Base) Move(sourcePath string, destPath string) error {
_, done := context.WithTrace(context.Background())
func (base *Base) Move(ctx context.Context, sourcePath string, destPath string) error {
ctx, done := context.WithTrace(ctx)
defer done("%s.Move(%q, %q", base.Name(), sourcePath, destPath)
if !storagedriver.PathRegexp.MatchString(sourcePath) {
@ -141,29 +141,29 @@ func (base *Base) Move(sourcePath string, destPath string) error {
return storagedriver.InvalidPathError{Path: destPath}
}
return base.StorageDriver.Move(sourcePath, destPath)
return base.StorageDriver.Move(ctx, sourcePath, destPath)
}
// Delete wraps Delete of underlying storage driver.
func (base *Base) Delete(path string) error {
_, done := context.WithTrace(context.Background())
func (base *Base) Delete(ctx context.Context, path string) error {
ctx, done := context.WithTrace(ctx)
defer done("%s.Delete(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) {
return storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.Delete(path)
return base.StorageDriver.Delete(ctx, path)
}
// URLFor wraps URLFor of underlying storage driver.
func (base *Base) URLFor(path string, options map[string]interface{}) (string, error) {
_, done := context.WithTrace(context.Background())
func (base *Base) URLFor(ctx context.Context, path string, options map[string]interface{}) (string, error) {
ctx, done := context.WithTrace(ctx)
defer done("%s.URLFor(%q)", base.Name(), path)
if !storagedriver.PathRegexp.MatchString(path) {
return "", storagedriver.InvalidPathError{Path: path}
}
return base.StorageDriver.URLFor(path, options)
return base.StorageDriver.URLFor(ctx, path, options)
}