50 lines
2.1 KiB
C
50 lines
2.1 KiB
C
/******************************************************************************
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* Copyright (c) Huawei Technologies Co., Ltd. 2018-2019. All rights reserved.
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* lcr licensed under the Mulan PSL v1.
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* You can use this software according to the terms and conditions of the Mulan PSL v1.
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* You may obtain a copy of Mulan PSL v1 at:
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* http://license.coscl.org.cn/MulanPSL
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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* PURPOSE.
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* See the Mulan PSL v1 for more details.
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* Author: wujing
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* Create: 2018-11-08
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* Description: provide container commands definition
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******************************************************************************/
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#ifndef __COMMAND_H
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#define __COMMAND_H
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#include "arguments.h"
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#include "commander.h"
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#include "utils.h"
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// A command is described by:
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// @name: The name which should be passed as a second parameter
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// @executor: The function that will be executed if the command
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// matches. Receives the argc of the program minus two, and
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// the rest os argv
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// @description: Brief description, will show in help messages
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// @longdesc: Long descripton to show when you run `help <command>`
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struct command {
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const char * const name;
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int (*executor)(int, const char **);
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const char * const description;
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const char * const longdesc;
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struct lcr_arguments *args;
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};
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// Gets a pointer to a command, to allow implementing custom behavior
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// returns null if not found.
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//
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// NOTE: Command arrays must end in a command with all member is NULL
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const struct command *command_by_name(const struct command *commands, const char * const name);
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// Default help command if implementation doesn't prvide one
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int commmand_default_help(const char * const program_name, struct command *commands, int argc, char **argv);
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// Tries to execute a command in the command list, The command name
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// must be in argv[1]. Example usage
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int run_command(struct command *commands, int argc, const char **argv);
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#endif /* __COMMAND_H */
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