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48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* que.c
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*
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* Copyright 2016 Edward V. Emelianov <eddy@sao.ru, 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 2 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <string.h>
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#include "que.h"
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char que[MESSAGE_LEN];
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control_data global_que;
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void put_message_to_que(char *msg, control_data *dat){
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int L = strlen(msg);
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if(dat->num >= MESSAGE_QUE_SIZE) return;
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++dat->num;
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if(L < 1 || L > MESSAGE_LEN - 1) L = MESSAGE_LEN - 1;
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strncpy(dat->message[dat->idxwr], msg, L);
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dat->message[dat->idxwr][L] = 0;
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if((++(dat->idxwr)) >= MESSAGE_QUE_SIZE) dat->idxwr = 0;
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}
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void glob_que(char *buf){
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put_message_to_que(buf, &global_que);
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}
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char *get_message_from_que(control_data *dat){
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char *R = dat->message[dat->idxrd];
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if(dat->num <= 0) return NULL;
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if((++dat->idxrd) >= MESSAGE_QUE_SIZE) dat->idxrd = 0;
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--dat->num;
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return R;
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}
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