Expose mutex methods and deprecate their uses

Signed-off-by: Matthieu MOREL <[email protected]>

Author: mmorel-35

propagators/aws/xray/idgenerator.go

@@ -25,6 +25,24 @@ type IDGenerator struct {
 
 var _ sdktrace.IDGenerator = &IDGenerator{}
 
+// Lock is used to lock the IDGenerator for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (gen *IDGenerator) Lock() {
+	gen.mu.Lock()
+}
+
+// TryLock attempts to lock the IDGenerator for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (gen *IDGenerator) TryLock() bool {
+	return gen.mu.TryLock()
+}
+
+// Unlock is used to unlock the IDGenerator for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (gen *IDGenerator) Unlock() {
+	gen.mu.Unlock()
+}
+
 // NewSpanID returns a non-zero span ID from a randomly-chosen sequence.
 func (gen *IDGenerator) NewSpanID(context.Context, trace.TraceID) trace.SpanID {
 	gen.mu.Lock()

samplers/jaegerremote/sampler_remote.go

@@ -95,6 +95,24 @@ func New(
 	return sampler
 }
 
+// Lock is used to lock the Sampler for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (s *Sampler) Lock() {
+	s.mu.Lock()
+}
+
+// TryLock attempts to lock the Sampler for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (s *Sampler) TryLock() bool {
+	return s.mu.TryLock()
+}
+
+// Unlock is used to unlock the Sampler for concurrent use.
+// Deprecated: mutex is internal and shall not be used.
+func (s *Sampler) Unlock() {
+	s.mu.Unlock()
+}
+
 // ShouldSample returns a sampling choice based on the passed sampling
 // parameters.
 func (s *Sampler) ShouldSample(p trace.SamplingParameters) trace.SamplingResult {