Merge pull request #10 from hasantr/windows-compatibility-fix

Fix Windows compatibility: Add missing CleanUp method

Author: lilith

imageflow_job_windows.go

@@ -1,10 +1,12 @@
+//go:build windows
 // +build windows
 
 package imageflow
 
 /*
 #cgo LDFLAGS: -L./ -limageflow
 #include "imageflow.h"
+#include <stdlib.h>
 */
 import "C"
 import (
@@ -89,6 +91,11 @@ func (job *job) GetOutput(id uint) ([]byte, error) {
 	return C.GoBytes((unsafe.Pointer)(ptr), C.int(l)), nil
 }
 
+// Frees the context and C allocations.
+func (j *job) CleanUp() {
+	C.imageflow_context_destroy(j.inner)
+}
+
 // ReadError from context
 func (job *job) ReadError() error {
 	l := 0