!11920 Refactor code under engine/cache/perf to pass lizard check

From: @lixiachen
Reviewed-by: @liucunwei,@pandoublefeng
Signed-off-by: @liucunwei

mindspore/ccsrc/minddata/dataset/engine/cache/perf/cache_perf_run.h

@@ -93,6 +93,10 @@ class CachePerfRun {
   Status GetSession();
   Status ListenToPipeline(int32_t workerId);
   void PrintEpochSummary() const;
+  Status StartPipelines();
+  Status Cleanup();
+  int32_t SanityCheck(std::map<int32_t, int32_t> seen_opts);
+  int32_t ProcessArgsHelper(int32_t opt);
 };
 }  // namespace dataset
 }  // namespace mindspore

mindspore/ccsrc/minddata/dataset/engine/cache/perf/cache_pipeline_run.cc

@@ -31,14 +31,9 @@ namespace mindspore {
 namespace dataset {
 void CachePipelineRun::PrintHelp() { std::cout << "Please run the executable cache_perf instead." << std::endl; }
 
-int32_t CachePipelineRun::ProcessArgs(int argc, char **argv) {
-  if (argc != 3) {
-    PrintHelp();
-    return -1;
-  }
-
+int32_t CachePipelineRun::ProcessPipelineArgs(char *argv) {
   try {
-    std::stringstream cfg_ss(argv[1]);
+    std::stringstream cfg_ss(argv);
     std::string s;
     int32_t numArgs = 0;
     while (std::getline(cfg_ss, s, ',')) {
@@ -72,8 +67,18 @@ int32_t CachePipelineRun::ProcessArgs(int argc, char **argv) {
       std::cerr << "Incomplete arguments. Expect 11. But get " << numArgs << std::endl;
       return -1;
     }
-    std::stringstream client_ss(argv[2]);
-    numArgs = 0;
+  } catch (const std::exception &e) {
+    std::cerr << "Parse error: " << e.what() << std::endl;
+    return -1;
+  }
+  return 0;
+}
+
+int32_t CachePipelineRun::ProcessClientArgs(char *argv) {
+  try {
+    std::stringstream client_ss(argv);
+    std::string s;
+    int32_t numArgs = 0;
     while (std::getline(client_ss, s, ',')) {
       if (numArgs == 0) {
         cache_builder_.SetHostname(s);
@@ -101,6 +106,17 @@ int32_t CachePipelineRun::ProcessArgs(int argc, char **argv) {
   return 0;
 }
 
+int32_t CachePipelineRun::ProcessArgs(int argc, char **argv) {
+  if (argc != 3) {
+    PrintHelp();
+    return -1;
+  }
+  int32_t rc = ProcessPipelineArgs(argv[1]);
+  if (rc < 0) return rc;
+  rc = ProcessClientArgs(argv[2]);
+  return rc;
+}
+
 CachePipelineRun::CachePipelineRun()
     : my_pipeline_(-1),
       num_pipelines_(kDftNumOfPipelines),
@@ -282,7 +298,7 @@ Status CachePipelineRun::WriterWorkerEntry(int32_t worker_id) {
         std::shared_ptr<Tensor> element;
         RETURN_IF_NOT_OK(Tensor::CreateEmpty(shape, col_desc->type(), &element));
         row.setId(id);
-        // CreateEmpty allocates the memory but in virutal address. Let's commit the memory
+        // CreateEmpty allocates the memory but in virtual address. Let's commit the memory
         // so we can get an accurate timing.
         auto it = element->begin<int64_t>();
         for (auto i = 0; i < num_elements; ++i, ++it) {

mindspore/ccsrc/minddata/dataset/engine/cache/perf/cache_pipeline_run.h

@@ -52,6 +52,8 @@ class CachePipelineRun {
   ~CachePipelineRun();
   static void PrintHelp();
   int32_t ProcessArgs(int argc, char **argv);
+  int32_t ProcessPipelineArgs(char *argv);
+  int32_t ProcessClientArgs(char *argv);
 
   void Print(std::ostream &out) const {
     out << "Number of pipelines: " << num_pipelines_ << "\n"