Implement simpleperf list subcommand.

simpleperf is used to replace linux/tools/perf. And This CL implements
the list subcommand of it.

Change-Id: I3e6fe854e19cc370070d0fd8416d0aa6fa8f8e90

1 files changed, 63 insertions, 0 deletions

diff --git a/simpleperf/command.h b/simpleperf/command.h
new file mode 100644
index 00000000..a2e1923a
--- /dev/null
+++ b/simpleperf/command.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.
+ */
+
+#ifndef SIMPLE_PERF_COMMAND_H_
+#define SIMPLE_PERF_COMMAND_H_
+
+#include <string>
+#include <vector>
+
+#include <base/macros.h>
+
+class Command {
+ public:
+  Command(const std::string& name, const std::string& short_help_string,
+          const std::string& long_help_string)
+      : name_(name), short_help_string_(short_help_string), long_help_string_(long_help_string) {
+    RegisterCommand(this);
+  }
+
+  virtual ~Command() {
+  }
+
+  const std::string& Name() const {
+    return name_;
+  }
+
+  const std::string& ShortHelpString() const {
+    return short_help_string_;
+  }
+
+  const std::string LongHelpString() const {
+    return long_help_string_;
+  }
+
+  virtual bool Run(const std::vector<std::string>& args) = 0;
+
+  static Command* FindCommandByName(const std::string& cmd_name);
+  static const std::vector<Command*>& GetAllCommands();
+
+ private:
+  const std::string name_;
+  const std::string short_help_string_;
+  const std::string long_help_string_;
+
+  static void RegisterCommand(Command* cmd);
+
+  DISALLOW_COPY_AND_ASSIGN(Command);
+};
+
+#endif  // SIMPLE_PERF_COMMAND_H_