diff options
Diffstat (limited to 'vendor/go.opencensus.io/tag')
| -rw-r--r-- | vendor/go.opencensus.io/tag/context.go | 41 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/doc.go | 26 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/key.go | 35 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/map.go | 197 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/map_codec.go | 234 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/profile_19.go | 31 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/profile_not19.go | 23 | ||||
| -rw-r--r-- | vendor/go.opencensus.io/tag/validate.go | 56 |
8 files changed, 0 insertions, 643 deletions
diff --git a/vendor/go.opencensus.io/tag/context.go b/vendor/go.opencensus.io/tag/context.go deleted file mode 100644 index ed528bc..0000000 --- a/vendor/go.opencensus.io/tag/context.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -package tag - -import "context" - -// FromContext returns the tag map stored in the context. -func FromContext(ctx context.Context) *Map { - // The returned tag map shouldn't be mutated. - ts := ctx.Value(mapCtxKey) - if ts == nil { - return nil - } - return ts.(*Map) -} - -// NewContext creates a new context with the given tag map. -// To propagate a tag map to downstream methods and downstream RPCs, add a tag map -// to the current context. NewContext will return a copy of the current context, -// and put the tag map into the returned one. -// If there is already a tag map in the current context, it will be replaced with m. -func NewContext(ctx context.Context, m *Map) context.Context { - return context.WithValue(ctx, mapCtxKey, m) -} - -type ctxKey struct{} - -var mapCtxKey = ctxKey{} diff --git a/vendor/go.opencensus.io/tag/doc.go b/vendor/go.opencensus.io/tag/doc.go deleted file mode 100644 index da16b74..0000000 --- a/vendor/go.opencensus.io/tag/doc.go +++ /dev/null @@ -1,26 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -/* -Package tag contains OpenCensus tags. - -Tags are key-value pairs. Tags provide additional cardinality to -the OpenCensus instrumentation data. - -Tags can be propagated on the wire and in the same -process via context.Context. Encode and Decode should be -used to represent tags into their binary propagation form. -*/ -package tag // import "go.opencensus.io/tag" diff --git a/vendor/go.opencensus.io/tag/key.go b/vendor/go.opencensus.io/tag/key.go deleted file mode 100644 index ebbed95..0000000 --- a/vendor/go.opencensus.io/tag/key.go +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -package tag - -// Key represents a tag key. -type Key struct { - name string -} - -// NewKey creates or retrieves a string key identified by name. -// Calling NewKey consequently with the same name returns the same key. -func NewKey(name string) (Key, error) { - if !checkKeyName(name) { - return Key{}, errInvalidKeyName - } - return Key{name: name}, nil -} - -// Name returns the name of the key. -func (k Key) Name() string { - return k.name -} diff --git a/vendor/go.opencensus.io/tag/map.go b/vendor/go.opencensus.io/tag/map.go deleted file mode 100644 index 5b72ba6..0000000 --- a/vendor/go.opencensus.io/tag/map.go +++ /dev/null @@ -1,197 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -package tag - -import ( - "bytes" - "context" - "fmt" - "sort" -) - -// Tag is a key value pair that can be propagated on wire. -type Tag struct { - Key Key - Value string -} - -// Map is a map of tags. Use New to create a context containing -// a new Map. -type Map struct { - m map[Key]string -} - -// Value returns the value for the key if a value for the key exists. -func (m *Map) Value(k Key) (string, bool) { - if m == nil { - return "", false - } - v, ok := m.m[k] - return v, ok -} - -func (m *Map) String() string { - if m == nil { - return "nil" - } - keys := make([]Key, 0, len(m.m)) - for k := range m.m { - keys = append(keys, k) - } - sort.Slice(keys, func(i, j int) bool { return keys[i].Name() < keys[j].Name() }) - - var buffer bytes.Buffer - buffer.WriteString("{ ") - for _, k := range keys { - buffer.WriteString(fmt.Sprintf("{%v %v}", k.name, m.m[k])) - } - buffer.WriteString(" }") - return buffer.String() -} - -func (m *Map) insert(k Key, v string) { - if _, ok := m.m[k]; ok { - return - } - m.m[k] = v -} - -func (m *Map) update(k Key, v string) { - if _, ok := m.m[k]; ok { - m.m[k] = v - } -} - -func (m *Map) upsert(k Key, v string) { - m.m[k] = v -} - -func (m *Map) delete(k Key) { - delete(m.m, k) -} - -func newMap() *Map { - return &Map{m: make(map[Key]string)} -} - -// Mutator modifies a tag map. -type Mutator interface { - Mutate(t *Map) (*Map, error) -} - -// Insert returns a mutator that inserts a -// value associated with k. If k already exists in the tag map, -// mutator doesn't update the value. -func Insert(k Key, v string) Mutator { - return &mutator{ - fn: func(m *Map) (*Map, error) { - if !checkValue(v) { - return nil, errInvalidValue - } - m.insert(k, v) - return m, nil - }, - } -} - -// Update returns a mutator that updates the -// value of the tag associated with k with v. If k doesn't -// exists in the tag map, the mutator doesn't insert the value. -func Update(k Key, v string) Mutator { - return &mutator{ - fn: func(m *Map) (*Map, error) { - if !checkValue(v) { - return nil, errInvalidValue - } - m.update(k, v) - return m, nil - }, - } -} - -// Upsert returns a mutator that upserts the -// value of the tag associated with k with v. It inserts the -// value if k doesn't exist already. It mutates the value -// if k already exists. -func Upsert(k Key, v string) Mutator { - return &mutator{ - fn: func(m *Map) (*Map, error) { - if !checkValue(v) { - return nil, errInvalidValue - } - m.upsert(k, v) - return m, nil - }, - } -} - -// Delete returns a mutator that deletes -// the value associated with k. -func Delete(k Key) Mutator { - return &mutator{ - fn: func(m *Map) (*Map, error) { - m.delete(k) - return m, nil - }, - } -} - -// New returns a new context that contains a tag map -// originated from the incoming context and modified -// with the provided mutators. -func New(ctx context.Context, mutator ...Mutator) (context.Context, error) { - m := newMap() - orig := FromContext(ctx) - if orig != nil { - for k, v := range orig.m { - if !checkKeyName(k.Name()) { - return ctx, fmt.Errorf("key:%q: %v", k, errInvalidKeyName) - } - if !checkValue(v) { - return ctx, fmt.Errorf("key:%q value:%q: %v", k.Name(), v, errInvalidValue) - } - m.insert(k, v) - } - } - var err error - for _, mod := range mutator { - m, err = mod.Mutate(m) - if err != nil { - return ctx, err - } - } - return NewContext(ctx, m), nil -} - -// Do is similar to pprof.Do: a convenience for installing the tags -// from the context as Go profiler labels. This allows you to -// correlated runtime profiling with stats. -// -// It converts the key/values from the given map to Go profiler labels -// and calls pprof.Do. -// -// Do is going to do nothing if your Go version is below 1.9. -func Do(ctx context.Context, f func(ctx context.Context)) { - do(ctx, f) -} - -type mutator struct { - fn func(t *Map) (*Map, error) -} - -func (m *mutator) Mutate(t *Map) (*Map, error) { - return m.fn(t) -} diff --git a/vendor/go.opencensus.io/tag/map_codec.go b/vendor/go.opencensus.io/tag/map_codec.go deleted file mode 100644 index 3e99895..0000000 --- a/vendor/go.opencensus.io/tag/map_codec.go +++ /dev/null @@ -1,234 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// - -package tag - -import ( - "encoding/binary" - "fmt" -) - -// KeyType defines the types of keys allowed. Currently only keyTypeString is -// supported. -type keyType byte - -const ( - keyTypeString keyType = iota - keyTypeInt64 - keyTypeTrue - keyTypeFalse - - tagsVersionID = byte(0) -) - -type encoderGRPC struct { - buf []byte - writeIdx, readIdx int -} - -// writeKeyString writes the fieldID '0' followed by the key string and value -// string. -func (eg *encoderGRPC) writeTagString(k, v string) { - eg.writeByte(byte(keyTypeString)) - eg.writeStringWithVarintLen(k) - eg.writeStringWithVarintLen(v) -} - -func (eg *encoderGRPC) writeTagUint64(k string, i uint64) { - eg.writeByte(byte(keyTypeInt64)) - eg.writeStringWithVarintLen(k) - eg.writeUint64(i) -} - -func (eg *encoderGRPC) writeTagTrue(k string) { - eg.writeByte(byte(keyTypeTrue)) - eg.writeStringWithVarintLen(k) -} - -func (eg *encoderGRPC) writeTagFalse(k string) { - eg.writeByte(byte(keyTypeFalse)) - eg.writeStringWithVarintLen(k) -} - -func (eg *encoderGRPC) writeBytesWithVarintLen(bytes []byte) { - length := len(bytes) - - eg.growIfRequired(binary.MaxVarintLen64 + length) - eg.writeIdx += binary.PutUvarint(eg.buf[eg.writeIdx:], uint64(length)) - copy(eg.buf[eg.writeIdx:], bytes) - eg.writeIdx += length -} - -func (eg *encoderGRPC) writeStringWithVarintLen(s string) { - length := len(s) - - eg.growIfRequired(binary.MaxVarintLen64 + length) - eg.writeIdx += binary.PutUvarint(eg.buf[eg.writeIdx:], uint64(length)) - copy(eg.buf[eg.writeIdx:], s) - eg.writeIdx += length -} - -func (eg *encoderGRPC) writeByte(v byte) { - eg.growIfRequired(1) - eg.buf[eg.writeIdx] = v - eg.writeIdx++ -} - -func (eg *encoderGRPC) writeUint32(i uint32) { - eg.growIfRequired(4) - binary.LittleEndian.PutUint32(eg.buf[eg.writeIdx:], i) - eg.writeIdx += 4 -} - -func (eg *encoderGRPC) writeUint64(i uint64) { - eg.growIfRequired(8) - binary.LittleEndian.PutUint64(eg.buf[eg.writeIdx:], i) - eg.writeIdx += 8 -} - -func (eg *encoderGRPC) readByte() byte { - b := eg.buf[eg.readIdx] - eg.readIdx++ - return b -} - -func (eg *encoderGRPC) readUint32() uint32 { - i := binary.LittleEndian.Uint32(eg.buf[eg.readIdx:]) - eg.readIdx += 4 - return i -} - -func (eg *encoderGRPC) readUint64() uint64 { - i := binary.LittleEndian.Uint64(eg.buf[eg.readIdx:]) - eg.readIdx += 8 - return i -} - -func (eg *encoderGRPC) readBytesWithVarintLen() ([]byte, error) { - if eg.readEnded() { - return nil, fmt.Errorf("unexpected end while readBytesWithVarintLen '%x' starting at idx '%v'", eg.buf, eg.readIdx) - } - length, valueStart := binary.Uvarint(eg.buf[eg.readIdx:]) - if valueStart <= 0 { - return nil, fmt.Errorf("unexpected end while readBytesWithVarintLen '%x' starting at idx '%v'", eg.buf, eg.readIdx) - } - - valueStart += eg.readIdx - valueEnd := valueStart + int(length) - if valueEnd > len(eg.buf) { - return nil, fmt.Errorf("malformed encoding: length:%v, upper:%v, maxLength:%v", length, valueEnd, len(eg.buf)) - } - - eg.readIdx = valueEnd - return eg.buf[valueStart:valueEnd], nil -} - -func (eg *encoderGRPC) readStringWithVarintLen() (string, error) { - bytes, err := eg.readBytesWithVarintLen() - if err != nil { - return "", err - } - return string(bytes), nil -} - -func (eg *encoderGRPC) growIfRequired(expected int) { - if len(eg.buf)-eg.writeIdx < expected { - tmp := make([]byte, 2*(len(eg.buf)+1)+expected) - copy(tmp, eg.buf) - eg.buf = tmp - } -} - -func (eg *encoderGRPC) readEnded() bool { - return eg.readIdx >= len(eg.buf) -} - -func (eg *encoderGRPC) bytes() []byte { - return eg.buf[:eg.writeIdx] -} - -// Encode encodes the tag map into a []byte. It is useful to propagate -// the tag maps on wire in binary format. -func Encode(m *Map) []byte { - eg := &encoderGRPC{ - buf: make([]byte, len(m.m)), - } - eg.writeByte(byte(tagsVersionID)) - for k, v := range m.m { - eg.writeByte(byte(keyTypeString)) - eg.writeStringWithVarintLen(k.name) - eg.writeBytesWithVarintLen([]byte(v)) - } - return eg.bytes() -} - -// Decode decodes the given []byte into a tag map. -func Decode(bytes []byte) (*Map, error) { - ts := newMap() - err := DecodeEach(bytes, ts.upsert) - if err != nil { - // no partial failures - return nil, err - } - return ts, nil -} - -// DecodeEach decodes the given serialized tag map, calling handler for each -// tag key and value decoded. -func DecodeEach(bytes []byte, fn func(key Key, val string)) error { - eg := &encoderGRPC{ - buf: bytes, - } - if len(eg.buf) == 0 { - return nil - } - - version := eg.readByte() - if version > tagsVersionID { - return fmt.Errorf("cannot decode: unsupported version: %q; supports only up to: %q", version, tagsVersionID) - } - - for !eg.readEnded() { - typ := keyType(eg.readByte()) - - if typ != keyTypeString { - return fmt.Errorf("cannot decode: invalid key type: %q", typ) - } - - k, err := eg.readBytesWithVarintLen() - if err != nil { - return err - } - - v, err := eg.readBytesWithVarintLen() - if err != nil { - return err - } - - key, err := NewKey(string(k)) - if err != nil { - return err - } - val := string(v) - if !checkValue(val) { - return errInvalidValue - } - fn(key, val) - if err != nil { - return err - } - } - return nil -} diff --git a/vendor/go.opencensus.io/tag/profile_19.go b/vendor/go.opencensus.io/tag/profile_19.go deleted file mode 100644 index f81cd0b..0000000 --- a/vendor/go.opencensus.io/tag/profile_19.go +++ /dev/null @@ -1,31 +0,0 @@ -// Copyright 2018, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.9 - -package tag - -import ( - "context" - "runtime/pprof" -) - -func do(ctx context.Context, f func(ctx context.Context)) { - m := FromContext(ctx) - keyvals := make([]string, 0, 2*len(m.m)) - for k, v := range m.m { - keyvals = append(keyvals, k.Name(), v) - } - pprof.Do(ctx, pprof.Labels(keyvals...), f) -} diff --git a/vendor/go.opencensus.io/tag/profile_not19.go b/vendor/go.opencensus.io/tag/profile_not19.go deleted file mode 100644 index 83adbce..0000000 --- a/vendor/go.opencensus.io/tag/profile_not19.go +++ /dev/null @@ -1,23 +0,0 @@ -// Copyright 2018, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build !go1.9 - -package tag - -import "context" - -func do(ctx context.Context, f func(ctx context.Context)) { - f(ctx) -} diff --git a/vendor/go.opencensus.io/tag/validate.go b/vendor/go.opencensus.io/tag/validate.go deleted file mode 100644 index 0939fc6..0000000 --- a/vendor/go.opencensus.io/tag/validate.go +++ /dev/null @@ -1,56 +0,0 @@ -// Copyright 2017, OpenCensus Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tag - -import "errors" - -const ( - maxKeyLength = 255 - - // valid are restricted to US-ASCII subset (range 0x20 (' ') to 0x7e ('~')). - validKeyValueMin = 32 - validKeyValueMax = 126 -) - -var ( - errInvalidKeyName = errors.New("invalid key name: only ASCII characters accepted; max length must be 255 characters") - errInvalidValue = errors.New("invalid value: only ASCII characters accepted; max length must be 255 characters") -) - -func checkKeyName(name string) bool { - if len(name) == 0 { - return false - } - if len(name) > maxKeyLength { - return false - } - return isASCII(name) -} - -func isASCII(s string) bool { - for _, c := range s { - if (c < validKeyValueMin) || (c > validKeyValueMax) { - return false - } - } - return true -} - -func checkValue(v string) bool { - if len(v) > maxKeyLength { - return false - } - return isASCII(v) -} |