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71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*
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* This file is part of the CANserver project.
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* Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#ifndef THREADLIST_H__
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#define THREADLIST_H__
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#include <pthread.h>
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// max length (in symbols) of thread name (any zero-terminated string)
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#define THREADNAMEMAXLEN (31)
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// messages FIFO
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typedef struct msglist_{
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char *data; // message itself
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struct msglist_ *next, *last; // other elements of list
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} msglist;
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// interthread messages; index 0 - MOSI, index 1 - MISO
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typedef struct{
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msglist *text; // stringified text messages
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pthread_mutex_t mutex; // text changing mutex
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} message;
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// name - handler pair for threads registering functions
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typedef struct{
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const char *name; // handler name
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void *(*handler)(void *); // handler function
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} thread_handler;
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// thread information
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typedef struct{
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char name[THREADNAMEMAXLEN+1]; // thread name
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int ID; // numeric ID (canopen ID)
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message commands; // commands from clients
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message answers; // answers from CANserver (raw messages to given ID)
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pthread_t thread; // thread descriptor
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thread_handler handler; // handler name & function
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} threadinfo;
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// list of threads member
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typedef struct thread_list_{
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threadinfo ti; // base thread information
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struct thread_list_ *next; // next element
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} threadlist;
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threadinfo *findThreadByName(char *name);
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threadinfo *findThreadByID(int ID);
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threadinfo *registerThread(char *name, int ID, thread_handler *handler);
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threadlist *nextThread(threadlist *curr);
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int killThreadByName(const char *name);
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char *getmesg(message *msg);
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char *addmesg(message *msg, char *txt);
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#endif // THREADLIST_H__
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