Fix CPPLint issues with select_op (#10072)

Author: abhinavarora

paddle/fluid/operators/select_op.cc

@@ -12,16 +12,17 @@ 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. */
 
-#include <boost/tokenizer.hpp>
 #include <memory>
-#include <thread>
+#include <thread>  // NOLINT
 #include <vector>
 #include "paddle/fluid/framework/channel.h"
 #include "paddle/fluid/framework/executor.h"
 #include "paddle/fluid/framework/lod_tensor.h"
 #include "paddle/fluid/framework/op_registry.h"
 #include "paddle/fluid/operators/concurrency/channel_util.h"
 
+#include <boost/tokenizer.hpp>
+
 namespace paddle {
 namespace operators {
 
@@ -254,8 +255,8 @@ class SelectOp : public framework::OperatorBase {
       auto selectCond = std::make_shared<std::condition_variable_any>();
 
       std::recursive_mutex callbackMutex;
-      pushThreadOnChannelQueues(scope, cases, selectCond, caseToExecute,
-                                completed, callbackMutex);
+      pushThreadOnChannelQueues(scope, cases, selectCond, &caseToExecute,
+                                &completed, &callbackMutex);
 
       // TODO(thuan): Atomically unlock all channels and sleep current thread
       unlockChannels(channels);
@@ -302,8 +303,8 @@ class SelectOp : public framework::OperatorBase {
       const framework::Scope *scope,
       std::vector<std::shared_ptr<SelectOpCase>> *cases,
       std::shared_ptr<std::condition_variable_any> rCond,
-      std::atomic<int> &caseToExecute, std::atomic<bool> &completed,
-      std::recursive_mutex &callbackMutex) const {
+      std::atomic<int> *caseToExecute, std::atomic<bool> *completed,
+      std::recursive_mutex *callbackMutex) const {
     std::vector<std::shared_ptr<SelectOpCase>>::iterator it = cases->begin();
     while (it != cases->end()) {
       std::shared_ptr<SelectOpCase> c = *it;
@@ -315,17 +316,17 @@ class SelectOp : public framework::OperatorBase {
       std::function<bool(framework::ChannelAction channelAction)> cb =
           [&caseToExecute, &completed, &callbackMutex,
            c](framework::ChannelAction channelAction) {
-            std::lock_guard<std::recursive_mutex> lock{callbackMutex};
+            std::lock_guard<std::recursive_mutex> lock{*callbackMutex};
 
             bool canProcess = false;
-            if (!completed) {
+            if (!(*completed)) {
               // If the channel wasn't closed, we set the caseToExecute index
               // as this current case
               if (channelAction != framework::ChannelAction::CLOSE) {
-                caseToExecute = c->caseIndex;
+                *caseToExecute = c->caseIndex;
               }
               // This will allow our conditional variable to break out of wait
-              completed = true;
+              *completed = true;
               canProcess = true;
             }