go/system: adding two-phase data pipe methods

mojo/public/go/system/c_allocators.c

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "mojo/public/go/system/c_allocators.h"
 
 #include <stdlib.h>
 #include "mojo/public/c/system/core.h"
 
 struct WaitParams MallocWaitParams() {
@@ skipping 139 matching lines @@
   struct WriteDataParams p;
   p.num_bytes = (uint32_t*)malloc(sizeof(uint32_t));
   p.elements = (void*)malloc(length * sizeof(void));
   return p;
 }
 
 void FreeWriteDataParams(struct WriteDataParams p) {
   free(p.num_bytes);
   free(p.elements);
 }
+
+struct TwoPhaseActionParams MallocTwoPhaseActionParams() {
+  struct TwoPhaseActionParams p;
+  p.buffer = (void**)malloc(sizeof(void*));
+  p.num_bytes = (uint32_t*)malloc(sizeof(uint32_t));
+  return p;
+}
+
+void FreeTwoPhaseActionParams(struct TwoPhaseActionParams p) {
+  free(p.buffer);
+  free(p.num_bytes);
+}