/os/core/inc/aos_shell.h - AMiRo-OS - Research for Cognitive Interaction

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       /*
       AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
       Copyright (C) 2016..2018  Thomas Schöpping et al.
       This program is free software: you can redistribute it and/or modify
       it under the terms of the GNU General Public License as published by
       the Free Software Foundation, either version 3 of the License, or
       (at your option) any later version.
       This program is distributed in the hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
       GNU General Public License for more details.
       You should have received a copy of the GNU General Public License
       along with this program.  If not, see <http://www.gnu.org/licenses/>.
       */
       #ifndef _AMIROOS_SHELL_H_
       #define _AMIROOS_SHELL_H_
       #include <aosconf.h>
       #if (AMIROOS_CFG_SHELL_ENABLE == true)
       #include <hal.h>
       #include <aos_types.h>
       #include <aos_iostream.h>
       /**
        * @brief   Shell event flag that is emitted when the thread starts.
        */
       #define AOS_SHELL_EVTFLAG_START                   ((eventflags_t)(1 << 0))
       /**
        * @brief   Shell event flag that is emitted when a command is executed.
        */
       #define AOS_SHELL_EVTFLAG_EXEC                    ((eventflags_t)(1 << 1))
       /**
        * @brief   Shell event flag that is emitted when a command execution finished.
        */
       #define AOS_SHELL_EVTFLAG_DONE                    ((eventflags_t)(1 << 2))
       /**
        * @brief   Shell event flag that is emitted when the shread stops.
        */
       #define AOS_SHELL_EVTFLAG_EXIT                    ((eventflags_t)(1 << 3))
       /**
        * @brief   Shell event flag that is emitted when an I/O error occurred.
        */
       #define AOS_SHELL_EVTFLAG_IOERROR                 ((eventflags_t)(1 << 4))
       /**
        * @brief   Shell input configuration for replacing content by user input.
        */
       #define AOS_SHELL_CONFIG_INPUT_OVERWRITE          (1 << 0)
       /**
        * @brief   Shell prompt configuration print a minimalistic prompt.
        */
       #define AOS_SHELL_CONFIG_PROMPT_MINIMAL           (1 << 1)
       /**
        * @brief   Shell prompt configuration to additionally print the system uptime with the prompt.
        */
       #define AOS_SHELL_CONFIG_PROMPT_UPTIME            (1 << 2)
       /**
        * @brief   Shell prompt configuration to additionally print the system uptime with the prompt.
        */
       #define AOS_SHELL_CONFIG_MATCH_CASE               (1 << 3)
       /**
        * @brief   Shell I/O channel flag whether the channel is attached to a list.
        */
       #define AOS_SHELLCHANNEL_ATTACHED                 (1 << 0)
       /**
        * @brief   Shell I/O channel flag whether the channel is enabled as input.
        */
       #define AOS_SHELLCHANNEL_INPUT_ENABLED            (1 << 1)
       /**
        * @brief   Shell I/O channel flag whether the channel is enabled as output.
        */
       #define AOS_SHELLCHANNEL_OUTPUT_ENABLED           (1 << 2)
       /*
        * forward definitions
        */
       typedef struct aos_shellchannel AosShellChannel;
       typedef struct aos_shellstream AosShellStream;
       /**
        * @brief   AosShellChannel specific methods.
        */
       #define _aos_shell_channel_methods                                          \
         _base_asynchronous_channel_methods
       /**
        * @brief   AosShellChannel specific data.
        */
       #define _aos_shell_channel_data                                             \
         /* pointer to a AosIOChannel object */                                    \
         AosIOChannel* iochannel;                                                  \
         /* event listener for the associated BaseAsynchronousChannel */           \
         event_listener_t listener;                                                \
         /* pointer to the next chennal in a AosShellStream */                     \
         AosShellChannel* next;                                                    \
         /* flags related to the channel */                                        \
         uint8_t flags;
       /**
        * @extends BaseAsynchronousChannelVMT
+       *
        * @brief   AosShellChannel virtual methods table.
        */
       struct AosShellChannelVMT {
         _aos_shell_channel_methods
       };
       /**
        * @extends BaseAsynchronousChannel
+       *
        * @brief   Shell channel class.
        * @details This class implements an asynchronous I/O channel.
        */
       struct aos_shellchannel {
         /** @brief Virtual Methods Table. */
         const struct AosShellChannelVMT* vmt;
         _aos_shell_channel_data
       };
       /**
        * @brief   AosShellStream methods.
        */
       #define _aos_shellstream_methods                                            \
         _base_sequential_stream_methods
       /**
        * @brief   AosShellStream data.
        */
       #define _aos_shellstream_data                                               \
         /* Pointer to the first channel in a list. */                             \
         AosShellChannel* channel;
       /**
        * @extends BaseSequentialStream
+       *
        * @brief   AosShellStream virtual methods table.
        */
       struct AosShellStreamVMT {
         _aos_shellstream_methods
       };
       /**
        * @extends BaseSequentialStream
+       *
        * @brief   Shell Stream class.
        * @details This class implements an base sequential stream.
        * @todo    So far only output but no input is supported.
        */
       struct aos_shellstream {
         const struct AosShellStreamVMT* vmt;
         _aos_shellstream_data
       };
       /**
        * @brief   Shell command calback type.
        */
       typedef int (*aos_shellcmdcb_t)(BaseSequentialStream* stream, int argc, char* argv[]);
       /**
        * @brief   Shell command structure.
        */
       typedef struct aos_shellcommand {
         /**
          * @brief   Command name.
          */
         const char* name;
         /**
          * @brief   Callback function.
          */
         aos_shellcmdcb_t callback;
         /**
          * @brief   Pointer to next command in a singly linked list.
          */
         struct aos_shellcommand* next;
       } aos_shellcommand_t;
       /**
        * @brief   Execution status of a shell command.
        */
       typedef struct aos_shellexecstatus {
         /**
          * @brief   Pointer to the command that was executed.
          */
         aos_shellcommand_t* command;
         /**
          * @brief   Return value of the executed command.
          */
         int retval;
       } aos_shellexecstatus_t;
       /**
        * @brief   Enumerator to encode shell actions.
        */
       typedef enum aos_shellaction {
         AOS_SHELL_ACTION_READCHAR,
         AOS_SHELL_ACTION_AUTOFILL,
         AOS_SHELL_ACTION_SUGGEST,
         AOS_SHELL_ACTION_INSERTTOGGLE,
         AOS_SHELL_ACTION_DELETEFORWARD,
         AOS_SHELL_ACTION_DELETEBACKWARD,
         AOS_SHELL_ACTION_RECALLLAST,
         AOS_SHELL_ACTION_CLEAR,
         AOS_SHELL_ACTION_CURSOR2START,
         AOS_SHELL_ACTION_CURSOR2END,
         AOS_SHELL_ACTION_CURSORLEFT,
         AOS_SHELL_ACTION_CURSORRIGHT,
         AOS_SHELL_ACTION_EXECUTE,
         AOS_SHELL_ACTION_ESCSTART,
         AOS_SHELL_ACTION_NONE,
       } aos_shellaction_t;
       /**
        * @brief   Shell structure.
        */
       typedef struct aos_shell {
         /**
          * @brief   Pointer to the thread object.
          */
         thread_t* thread;
         /**
          * @brief   Event source.
          */
         event_source_t eventSource;
         /**
          * @brief   Struct for OS related events
          */
         struct {
           /**
            * @brief   Pointer to the OS' event source.
            */
           event_source_t* eventSource;
           /**
            * @brief   Listener for OS related events.
            */
           event_listener_t eventListener;
         } os;
         /**
            * @brief   Pointer to the first I/O channel.
            */
         AosShellStream stream;
         /**
          * @brief   String to printed as prompt.
          */
         const char* prompt;
         /**
          * @brief   Pointer to the first element of the singly linked list of commands.
          * @details Commands are ordered alphabetically in the list.
          */
         aos_shellcommand_t* commands;
         /**
          * @brief   Execution status of the most recent command.
          */
         aos_shellexecstatus_t execstatus;
         /**
          * @brief   Input buffer.
          */
         char* line;
         /**
          * @brief   Size of the input buffer.
          */
         size_t linesize;
         /**
          * @brief   Structure containing data for internal input parsing.
          */
         struct {
           /**
            * @brief   The last action executed by the shell.
            */
           aos_shellaction_t lastaction;
           /**
            * @brief   Number of character in the current escape sequence.
            */
           uint8_t escp;
           /**
            * @brief   Buffer to store an escape sequence.
            */
           char escseq[5];
           /**
            * @brief   Current curso position.
            */
           size_t cursorpos;
           /**
            * @brief   Current line width.
            */
           size_t lineend;
           /**
            * @brief   Flag whether there was input since the prompt was printed the last time.
            */
           bool noinput;
         } inputdata;
         /**
          * @brief   Argument buffer.
          */
         char** arglist;
         /**
          * @brief   Size of the argument buffer.
          */
         size_t arglistsize;
         /**
          * @brief   Configuration flags.
          */
         uint8_t config;
       } aos_shell_t;
       #ifdef __cplusplus
       extern "C" {
       #endif
         void aosShellInit(aos_shell_t* shell, event_source_t* oseventsource, const char* prompt, char* line, size_t linesize, char** arglist, size_t arglistsize);
         void aosShellStreamInit(AosShellStream* stream);
         void aosShellChannelInit(AosShellChannel* channel, AosIOChannel* iochannel);
         aos_status_t aosShellAddCommand(aos_shell_t* shell, aos_shellcommand_t* cmd);
         aos_status_t aosShellRemoveCommand(aos_shell_t* shell, char* cmd, aos_shellcommand_t** removed);
         void aosShellStreamAddChannel(AosShellStream* stream, AosShellChannel* channel);
         aos_status_t aosShellStreamRemoveChannel(AosShellStream* stream, AosShellChannel* channel);
         void aosShellChannelInputEnable(AosShellChannel* channel);
         void aosShellChannelInputDisable( AosShellChannel* channel);
         void aosShellChannelOutputEnable(AosShellChannel* channel);
         void aosShellChannelOutputDisable(AosShellChannel* channel);
         THD_FUNCTION(aosShellThread, shell);
       #ifdef __cplusplus
+      }
       #endif
       #endif /* AMIROOS_CFG_SHELL_ENABLE == true */
       #endif /* _AMIROOS_SHELL_H_ */