clean code for network functions

include/LightGBM/c_api.h

@@ -757,11 +757,11 @@ LIGHTGBM_C_EXPORT int LGBM_NetworkInit(const char* machines,
 */
 LIGHTGBM_C_EXPORT int LGBM_NetworkFree();
 
-LIGHTGBM_C_EXPORT int LGBM_GetFuncions(void* AllreduceFuncPtr,
-                                       void* ReduceScatterFuncPtr, 
-                                       void* AllgatherFuncPtr, 
-                                       int num_machines, 
-                                       int rank);
+LIGHTGBM_C_EXPORT int LGBM_NetworkInitWithFunctions(void* AllreduceFuncPtr,
+                                                    void* ReduceScatterFuncPtr,
+                                                    void* AllgatherFuncPtr,
+                                                    int num_machines,
+                                                    int rank);
 
 // exception handle and error msg
 static char* LastErrorMsg() { static THREAD_LOCAL char err_msg[512] = "Everything is fine"; return err_msg; }

include/LightGBM/network.h

@@ -191,9 +191,9 @@ public:
   /*! \brief set variables and function ptrs */
   static void SetRank(int rank) { rank_ = rank;}
   static void SetNumMachines(int num_machines) { num_machines_ = num_machines; }
-  static void SetAllReduce(AllreduceFunction AllreduceFuncPtr) { AllreduceFuncPtr_ = AllreduceFuncPtr;}
-  static void SetReduceScatter(ReduceScatterFunction ReduceScatterFuncPtr) { ReduceScatterFuncPtr_ = ReduceScatterFuncPtr; }
-  static void SetAllgather(AllgatherFunction AllgatherFuncPtr) { AllgatherFuncPtr_ = AllgatherFuncPtr; }
+  static void SetAllReduceFunction(AllreduceFunction AllreduceFuncPtr) { AllreduceFuncPtr_ = AllreduceFuncPtr;}
+  static void SetReduceScatterFunction(ReduceScatterFunction ReduceScatterFuncPtr) { ReduceScatterFuncPtr_ = ReduceScatterFuncPtr; }
+  static void SetAllgatherFunction(AllgatherFunction AllgatherFuncPtr) { AllgatherFuncPtr_ = AllgatherFuncPtr; }
 
 private:
   /*! \brief Number of all machines */

src/c_api.cpp

@@ -1220,31 +1220,30 @@ int LGBM_NetworkFree() {
   API_END();
 }
 
-int LGBM_GetFuncions(void* AllreduceFuncPtr,
-                     void* ReduceScatterFuncPtr,
-                     void* AllgatherFuncPtr,
-                     int num_machines,
-                     int rank) {
+int LGBM_NetworkInitWithFunctions(void* AllreduceFuncPtr,
+                                  void* ReduceScatterFuncPtr,
+                                  void* AllgatherFuncPtr,
+                                  int num_machines,
+                                  int rank) {
   API_BEGIN();
-  if(num_machines > 1) {
-    auto func1 = [AllreduceFuncPtr](char* arg1, int arg2, int arg3, char* arg4, const ReduceFunction& func) {
+  if (num_machines > 1) {
+    auto allreduce_fun = [AllreduceFuncPtr](char* arg1, int arg2, int arg3, char* arg4, const ReduceFunction& func) {
       auto ptr = *func.target<ReduceFunctionInC>();
       auto tmp = (void(*)(char*, int, int, char*, const ReduceFunctionInC&))AllreduceFuncPtr;
       return tmp(arg1, arg2, arg3, arg4, ptr);
     };
-    Network::SetAllReduce(func1);
-    auto func2 = [ReduceScatterFuncPtr](char* arg1, int arg2, const int* arg3, const int* arg4, char* arg5, const ReduceFunction& func) {
+    Network::SetAllReduceFunction(allreduce_fun);
+    auto reduce_scatter_fun = [ReduceScatterFuncPtr](char* arg1, int arg2, const int* arg3, const int* arg4, char* arg5, const ReduceFunction& func) {
       auto ptr = *func.target<ReduceFunctionInC>();
       auto tmp = (void(*)(char*, int, const int*, const int*, char*, const ReduceFunctionInC&))ReduceScatterFuncPtr;
       return tmp(arg1, arg2, arg3, arg4, arg5, ptr);
     };
-    Network::SetReduceScatter(func2);
-    Network::SetAllgather((void(*)(char*, int, char*))AllgatherFuncPtr);
+    Network::SetReduceScatterFunction(reduce_scatter_fun);
+    Network::SetAllgatherFunction((void(*)(char*, int, char*))AllgatherFuncPtr);
     Network::SetNumMachines(num_machines);
     Network::SetRank(rank);
   }
   API_END();
-
 }
 // ---- start of some help functions