attempt to fix npe in mutex.

Since we are using pointer receiver for the StaticPool struct, there is
no sense to use pointers to define a mutexes

1 files changed, 5 insertions, 7 deletions

diff --git a/static_pool.go b/static_pool.go
index ac9c2529..c7cc6517 100644
--- a/static_pool.go
+++ b/static_pool.go
@@ -2,11 +2,12 @@ package roadrunner
 
 import (
 	"fmt"
-	"github.com/pkg/errors"
 	"os/exec"
 	"sync"
 	"sync/atomic"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 const (
@@ -26,7 +27,7 @@ type StaticPool struct {
 	factory Factory
 
 	// active task executions
-	tmu   *sync.Mutex
+	tmu   sync.Mutex
 	tasks sync.WaitGroup
 
 	// workers circular allocation buf
@@ -36,13 +37,13 @@ type StaticPool struct {
 	numDead int64
 
 	// protects state of worker list, does not affect allocation
-	muw *sync.RWMutex
+	muw sync.RWMutex
 
 	// all registered workers
 	workers []*Worker
 
 	// invalid declares set of workers to be removed from the pool.
-	remove *sync.Map
+	remove sync.Map
 
 	// pool is being destroyed
 	inDestroy int32
@@ -66,9 +67,6 @@ func NewPool(cmd func() *exec.Cmd, factory Factory, cfg Config) (*StaticPool, er
 		workers: make([]*Worker, 0, cfg.NumWorkers),
 		free:    make(chan *Worker, cfg.NumWorkers),
 		destroy: make(chan interface{}),
-		tmu:     &sync.Mutex{},
-		remove:  &sync.Map{},
-		muw:     &sync.RWMutex{},
 	}
 
 	// constant number of workers simplify logic