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remove cli commands registry of c api
Summary: Ref T10562 Test Plan: N/A Reviewers: qinzuoyan, cailiuyang Reviewed By: cailiuyang Subscribers: #pegasus Maniphest Tasks: T10562 Differential Revision: https://phabricator.d.xiaomi.net/D81804
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| /* | ||
| * The MIT License (MIT) | ||
| * | ||
| * Copyright (c) 2015 Microsoft Corporation | ||
| * | ||
| * -=- Robust Distributed System Nucleus (rDSN) -=- | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
|
|
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| #pragma once | ||
|
|
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| #include <dsn/utility/synchronize.h> | ||
| #include <dsn/utility/singleton.h> | ||
| #include <dsn/tool-api/rpc_message.h> | ||
| #include <map> | ||
|
|
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| namespace dsn { | ||
|
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| class command_manager : public ::dsn::utils::singleton<command_manager> | ||
| { | ||
| public: | ||
| typedef std::function<std::string(const std::vector<std::string> &)> command_handler; | ||
| command_manager(); | ||
|
|
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| dsn_handle_t register_command(const std::vector<std::string> &commands, | ||
| const std::string &help_one_line, | ||
| const std::string &help_long, | ||
| command_handler handler); | ||
| dsn_handle_t register_app_command(const std::vector<std::string> &commands, | ||
| const std::string &help_one_line, | ||
| const std::string &help_long, | ||
| command_handler handler); | ||
| void deregister_command(dsn_handle_t handle); | ||
|
|
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| bool run_command(const std::string &cmdline, /*out*/ std::string &output); | ||
| void start_remote_cli(); | ||
| void on_remote_cli(dsn_message_t req); | ||
| void set_cli_target_address(dsn_handle_t handle, dsn::rpc_address address); | ||
|
|
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| private: | ||
| bool run_command(const std::string &cmd, | ||
| const std::vector<std::string> &args, | ||
| /*out*/ std::string &output); | ||
|
|
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| private: | ||
| struct command_instance | ||
| { | ||
| dsn::rpc_address address; | ||
| std::vector<std::string> commands; | ||
| std::string help_short; | ||
| std::string help_long; | ||
| command_handler handler; | ||
| }; | ||
|
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| ::dsn::utils::rw_lock_nr _lock; | ||
| std::map<std::string, command_instance *> _handlers; | ||
| std::vector<command_instance *> _commands; | ||
| }; | ||
| } | ||
|
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| #define UNREGISTER_VALID_HANDLER(ptr) \ | ||
| do { \ | ||
| if (ptr != nullptr) { \ | ||
| dsn::command_manager::instance().deregister_command(ptr); \ | ||
| ptr = nullptr; \ | ||
| } \ | ||
| } while (0) | ||
|
|
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| // handle bool-flag "flag" with "args": if args are empty, then return the old flag; otherwise | ||
| // set the proper "flag" according to args | ||
| #define HANDLE_CLI_FLAGS(flag, args) \ | ||
| do { \ | ||
| std::string ret_msg("OK"); \ | ||
| if (args.size() <= 0) { \ | ||
| ret_msg = flag ? "true" : "false"; \ | ||
| } else { \ | ||
| if (strcmp(args[0].c_str(), "true") == 0) { \ | ||
| flag = true; \ | ||
| ddebug("set " #flag " to true by remote command"); \ | ||
| } else if (strcmp(args[0].c_str(), "false") == 0) { \ | ||
| flag = false; \ | ||
| ddebug("set " #flag " to false by remote command"); \ | ||
| } else { \ | ||
| ret_msg = "ERR: invalid arguments"; \ | ||
| } \ | ||
| } \ | ||
| return ret_msg; \ | ||
| } while (0) |
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