| 1 |
/***************************************************************************
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screen.c - description
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-------------------
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Copyright : (C) 2004-2025 by Leaflet
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Email : leaflet@leafok.com
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***************************************************************************/
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/***************************************************************************
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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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***************************************************************************/
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#include "bbs.h"
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#include "common.h"
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#include "editor.h"
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#include "file_loader.h"
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#include "io.h"
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#include "log.h"
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#include "login.h"
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#include "screen.h"
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#include "str_process.h"
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/shm.h>
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#include <sys/types.h>
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#define ACTIVE_BOARD_HEIGHT 8
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| 38 |
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#define STR_TOP_LEFT_MAX_LEN 80
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| 40 |
#define STR_TOP_MIDDLE_MAX_LEN 40
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#define STR_TOP_RIGHT_MAX_LEN 40
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static const char *get_time_str(char *s, size_t len)
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{
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static const char *weekday[] = {
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"天", "一", "二", "三", "四", "五", "六"};
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time_t curtime;
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struct tm local_tm;
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time(&curtime);
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localtime_r(&curtime, &local_tm);
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size_t j = strftime(s, len, "%b %d %H:%M 星期", &local_tm);
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if (j == 0 || j + strlen(weekday[local_tm.tm_wday]) + 1 > len)
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{
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return NULL;
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}
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strncat(s, weekday[local_tm.tm_wday], len - 1 - j);
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return s;
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}
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void moveto(int row, int col)
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{
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if (row >= 0)
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{
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prints("\033[%d;%dH", row, col);
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}
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else
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{
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prints("\r");
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}
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}
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void clrtoeol()
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{
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prints(CTRL_SEQ_CLR_LINE);
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}
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void clrline(int line_begin, int line_end)
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{
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int i;
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for (i = line_begin; i <= line_end; i++)
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{
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moveto(i, 0);
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prints(CTRL_SEQ_CLR_LINE);
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}
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}
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void clrtobot(int line_begin)
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{
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moveto(line_begin, 0);
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prints("\033[J");
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moveto(line_begin, 0);
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}
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void clearscr()
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{
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prints("\033[2J");
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moveto(0, 0);
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}
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int press_any_key()
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{
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moveto(SCREEN_ROWS, 0);
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clrtoeol();
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prints(" \033[1;33m按任意键继续...\033[0;37m");
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iflush();
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return igetch_t(MIN(MAX_DELAY_TIME, 60));
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}
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void set_input_echo(int echo)
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{
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if (echo)
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{
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outc('\x83'); // ASCII code 131
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iflush();
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}
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else
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{
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// outc ('\x85'); // ASCII code 133
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prints("\xff\xfb\x01\xff\xfb\x03");
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iflush();
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igetch(0);
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igetch_reset();
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}
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}
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static int _str_input(char *buffer, int buf_size, int max_display_len, int echo_mode)
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{
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int ch;
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int offset = 0;
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int eol;
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int display_len;
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char input_str[4];
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int str_len = 0;
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char c;
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buffer[buf_size - 1] = '\0';
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offset = split_line(buffer, max_display_len, &eol, &display_len, 0);
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igetch_reset();
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while (!SYS_server_exit)
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{
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ch = igetch_t(MIN(MAX_DELAY_TIME, 60));
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if (ch == CR)
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{
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igetch_reset();
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break;
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}
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else if (ch == KEY_TIMEOUT || ch == KEY_NULL) // timeout or broken pipe
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{
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return -1;
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}
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else if (ch == LF || ch == '\0')
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{
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continue;
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}
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else if (ch == BACKSPACE)
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{
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if (offset > 0)
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{
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offset--;
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if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8
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{
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while (offset > 0 && (buffer[offset] & 0b11000000) != 0b11000000)
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{
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offset--;
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}
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display_len--;
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prints("\033[D \033[D");
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}
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buffer[offset] = '\0';
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display_len--;
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prints("\033[D \033[D");
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iflush();
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}
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continue;
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}
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else if (ch > 255 || iscntrl(ch))
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{
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continue;
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}
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else if ((ch & 0xff80) == 0x80) // head of multi-byte character
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{
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str_len = 0;
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c = (char)(ch & 0b11110000);
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while (c & 0b10000000)
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{
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input_str[str_len] = (char)(ch - 256);
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str_len++;
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c = (c & 0b01111111) << 1;
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if ((c & 0b10000000) == 0) // Input completed
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{
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break;
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}
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// Expect additional bytes of input
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ch = igetch(100); // 0.1 second
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if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input
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{
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#ifdef _DEBUG
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log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len);
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#endif
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str_len = 0;
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break;
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}
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}
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| 216 |
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if (str_len == 0) // Incomplete input
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{
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continue;
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}
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if (offset + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character
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{
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outc('\a');
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iflush();
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continue;
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}
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memcpy(buffer + offset, input_str, (size_t)str_len);
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offset += str_len;
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buffer[offset] = '\0';
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display_len += 2;
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switch (echo_mode)
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{
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| 236 |
case DOECHO:
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prints(input_str);
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break;
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case NOECHO:
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prints("**");
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break;
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}
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}
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else if (ch >= 32 && ch < 127) // Printable character
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{
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if (offset + 1 > buf_size - 1 || display_len + 1 > max_display_len)
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{
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outc('\a');
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iflush();
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continue;
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}
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buffer[offset++] = (char)ch;
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buffer[offset] = '\0';
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display_len++;
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switch (echo_mode)
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{
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case DOECHO:
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outc((char)ch);
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break;
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case NOECHO:
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outc('*');
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break;
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}
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}
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else // Invalid character
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{
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continue;
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}
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| 271 |
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iflush();
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}
|
| 274 |
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return offset;
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}
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int str_input(char *buffer, int buf_size, int echo_mode)
|
| 279 |
{
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| 280 |
int len;
|
| 281 |
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buffer[0] = '\0';
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| 283 |
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| 284 |
len = _str_input(buffer, buf_size, buf_size, echo_mode);
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| 285 |
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prints("\r\n");
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iflush();
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| 288 |
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return len;
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};
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| 292 |
int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int max_display_len, int echo_mode)
|
| 293 |
{
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| 294 |
int len;
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| 295 |
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moveto(row, col);
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| 297 |
prints("%s", prompt);
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| 298 |
prints("%s", buffer);
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| 299 |
iflush();
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| 300 |
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| 301 |
len = _str_input(buffer, buf_size, max_display_len, echo_mode);
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| 302 |
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| 303 |
return len;
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| 304 |
}
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| 305 |
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| 306 |
int display_data(const void *p_data, long display_line_total, const long *p_line_offsets, int eof_exit,
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| 307 |
display_data_key_handler key_handler, const char *help_filename)
|
| 308 |
{
|
| 309 |
static int show_help = 1;
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| 310 |
char buffer[LINE_BUFFER_LEN];
|
| 311 |
DISPLAY_CTX ctx;
|
| 312 |
int ch = 0;
|
| 313 |
int input_ok;
|
| 314 |
const int screen_begin_row = 1;
|
| 315 |
const int screen_row_total = SCREEN_ROWS - screen_begin_row;
|
| 316 |
int output_current_row = screen_begin_row;
|
| 317 |
int output_end_row = SCREEN_ROWS - 1;
|
| 318 |
long int line_current = 0;
|
| 319 |
long int len;
|
| 320 |
long int percentile;
|
| 321 |
int loop;
|
| 322 |
int eol, display_len;
|
| 323 |
|
| 324 |
clrline(output_current_row, SCREEN_ROWS);
|
| 325 |
|
| 326 |
// update msg_ext with extended key handler
|
| 327 |
if (key_handler(&ch, &ctx) != 0)
|
| 328 |
{
|
| 329 |
return ch;
|
| 330 |
}
|
| 331 |
|
| 332 |
loop = 1;
|
| 333 |
while (!SYS_server_exit && loop)
|
| 334 |
{
|
| 335 |
if (eof_exit > 0 && line_current >= display_line_total && display_line_total <= screen_row_total)
|
| 336 |
{
|
| 337 |
if (eof_exit == 1)
|
| 338 |
{
|
| 339 |
ch = press_any_key();
|
| 340 |
}
|
| 341 |
else // if (eof_exit == 2)
|
| 342 |
{
|
| 343 |
iflush();
|
| 344 |
}
|
| 345 |
|
| 346 |
loop = 0;
|
| 347 |
break;
|
| 348 |
}
|
| 349 |
|
| 350 |
if (line_current >= display_line_total || output_current_row > output_end_row)
|
| 351 |
{
|
| 352 |
ctx.reach_begin = (line_current < output_current_row ? 1 : 0);
|
| 353 |
|
| 354 |
if (line_current - (output_current_row - screen_begin_row) + screen_row_total < display_line_total)
|
| 355 |
{
|
| 356 |
percentile = (line_current - (output_current_row - screen_begin_row) + screen_row_total) * 100 / display_line_total;
|
| 357 |
ctx.reach_end = 0;
|
| 358 |
}
|
| 359 |
else
|
| 360 |
{
|
| 361 |
percentile = 100;
|
| 362 |
ctx.reach_end = 1;
|
| 363 |
}
|
| 364 |
|
| 365 |
ctx.line_top = line_current - (output_current_row - screen_begin_row) + 1;
|
| 366 |
ctx.line_bottom = MIN(line_current - (output_current_row - screen_begin_row) + screen_row_total, display_line_total);
|
| 367 |
|
| 368 |
snprintf(buffer, sizeof(buffer),
|
| 369 |
"\033[1;44;33m第\033[32m%ld\033[33m-\033[32m%ld\033[33m行 (\033[32m%ld%%\033[33m) %s",
|
| 370 |
ctx.line_top,
|
| 371 |
ctx.line_bottom,
|
| 372 |
percentile,
|
| 373 |
ctx.msg);
|
| 374 |
|
| 375 |
len = split_line(buffer, SCREEN_COLS, &eol, &display_len, 1);
|
| 376 |
for (; display_len < SCREEN_COLS; display_len++)
|
| 377 |
{
|
| 378 |
buffer[len++] = ' ';
|
| 379 |
}
|
| 380 |
buffer[len] = '\0';
|
| 381 |
strncat(buffer, "\033[m", sizeof(buffer) - 1 - strnlen(buffer, sizeof(buffer)));
|
| 382 |
|
| 383 |
moveto(SCREEN_ROWS, 0);
|
| 384 |
prints("%s", buffer);
|
| 385 |
iflush();
|
| 386 |
|
| 387 |
input_ok = 0;
|
| 388 |
while (!SYS_server_exit && !input_ok)
|
| 389 |
{
|
| 390 |
ch = igetch_t(MAX_DELAY_TIME);
|
| 391 |
input_ok = 1;
|
| 392 |
|
| 393 |
// extended key handler
|
| 394 |
if (key_handler(&ch, &ctx) != 0)
|
| 395 |
{
|
| 396 |
goto cleanup;
|
| 397 |
}
|
| 398 |
|
| 399 |
switch (ch)
|
| 400 |
{
|
| 401 |
case KEY_NULL:
|
| 402 |
case KEY_TIMEOUT:
|
| 403 |
goto cleanup;
|
| 404 |
case KEY_HOME:
|
| 405 |
if (line_current - output_current_row < 0) // Reach begin
|
| 406 |
{
|
| 407 |
break;
|
| 408 |
}
|
| 409 |
line_current = 0;
|
| 410 |
output_current_row = screen_begin_row;
|
| 411 |
output_end_row = SCREEN_ROWS - 1;
|
| 412 |
clrline(output_current_row, SCREEN_ROWS);
|
| 413 |
break;
|
| 414 |
case KEY_END:
|
| 415 |
if (display_line_total < screen_row_total)
|
| 416 |
{
|
| 417 |
break;
|
| 418 |
}
|
| 419 |
line_current = display_line_total - screen_row_total;
|
| 420 |
output_current_row = screen_begin_row;
|
| 421 |
output_end_row = SCREEN_ROWS - 1;
|
| 422 |
clrline(output_current_row, SCREEN_ROWS);
|
| 423 |
break;
|
| 424 |
case KEY_UP:
|
| 425 |
if (line_current - output_current_row < 0) // Reach begin
|
| 426 |
{
|
| 427 |
break;
|
| 428 |
}
|
| 429 |
line_current -= output_current_row;
|
| 430 |
output_current_row = screen_begin_row;
|
| 431 |
// screen_end_line = screen_begin_line;
|
| 432 |
// prints("\033[T"); // Scroll down 1 line
|
| 433 |
output_end_row = SCREEN_ROWS - 1; // Legacy Fterm only works with this line
|
| 434 |
break;
|
| 435 |
case CR:
|
| 436 |
igetch_reset();
|
| 437 |
case KEY_SPACE:
|
| 438 |
case KEY_DOWN:
|
| 439 |
if (line_current + (screen_row_total - (output_current_row - screen_begin_row)) >= display_line_total) // Reach end
|
| 440 |
{
|
| 441 |
break;
|
| 442 |
}
|
| 443 |
line_current += (screen_row_total - (output_current_row - screen_begin_row));
|
| 444 |
output_current_row = screen_row_total;
|
| 445 |
output_end_row = SCREEN_ROWS - 1;
|
| 446 |
moveto(SCREEN_ROWS, 0);
|
| 447 |
clrtoeol();
|
| 448 |
// prints("\033[S"); // Scroll up 1 line
|
| 449 |
prints("\n"); // Legacy Cterm only works with this line
|
| 450 |
break;
|
| 451 |
case KEY_PGUP:
|
| 452 |
if (line_current - output_current_row < 0) // Reach begin
|
| 453 |
{
|
| 454 |
break;
|
| 455 |
}
|
| 456 |
line_current -= ((screen_row_total - 1) + (output_current_row - screen_begin_row));
|
| 457 |
if (line_current < 0)
|
| 458 |
{
|
| 459 |
line_current = 0;
|
| 460 |
}
|
| 461 |
output_current_row = screen_begin_row;
|
| 462 |
output_end_row = SCREEN_ROWS - 1;
|
| 463 |
clrline(output_current_row, SCREEN_ROWS);
|
| 464 |
break;
|
| 465 |
case KEY_PGDN:
|
| 466 |
if (line_current + screen_row_total - (output_current_row - screen_begin_row) >= display_line_total) // Reach end
|
| 467 |
{
|
| 468 |
break;
|
| 469 |
}
|
| 470 |
line_current += (screen_row_total - 1) - (output_current_row - screen_begin_row);
|
| 471 |
if (line_current + screen_row_total > display_line_total) // No enough lines to display
|
| 472 |
{
|
| 473 |
line_current = display_line_total - screen_row_total;
|
| 474 |
}
|
| 475 |
output_current_row = screen_begin_row;
|
| 476 |
output_end_row = SCREEN_ROWS - 1;
|
| 477 |
clrline(output_current_row, SCREEN_ROWS);
|
| 478 |
break;
|
| 479 |
case KEY_ESC:
|
| 480 |
case KEY_LEFT:
|
| 481 |
loop = 0;
|
| 482 |
break;
|
| 483 |
case 'h':
|
| 484 |
if (!show_help) // Not reentrant
|
| 485 |
{
|
| 486 |
break;
|
| 487 |
}
|
| 488 |
// Display help information
|
| 489 |
show_help = 0;
|
| 490 |
display_file(help_filename, 1);
|
| 491 |
show_help = 1;
|
| 492 |
case KEY_F5:
|
| 493 |
// Refresh after display help information
|
| 494 |
line_current -= (output_current_row - screen_begin_row);
|
| 495 |
output_current_row = screen_begin_row;
|
| 496 |
output_end_row = SCREEN_ROWS - 1;
|
| 497 |
clrline(output_current_row, SCREEN_ROWS);
|
| 498 |
break;
|
| 499 |
case 0: // Refresh bottom line
|
| 500 |
break;
|
| 501 |
default:
|
| 502 |
input_ok = 0;
|
| 503 |
break;
|
| 504 |
}
|
| 505 |
|
| 506 |
BBS_last_access_tm = time(NULL);
|
| 507 |
}
|
| 508 |
|
| 509 |
continue;
|
| 510 |
}
|
| 511 |
|
| 512 |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current];
|
| 513 |
if (len >= sizeof(buffer))
|
| 514 |
{
|
| 515 |
log_error("Buffer overflow: len=%ld(%ld - %ld) line=%ld \n",
|
| 516 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current);
|
| 517 |
len = sizeof(buffer) - 1;
|
| 518 |
}
|
| 519 |
else if (len < 0)
|
| 520 |
{
|
| 521 |
log_error("Incorrect line offsets: len=%ld(%ld - %ld) line=%ld \n",
|
| 522 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current);
|
| 523 |
len = 0;
|
| 524 |
}
|
| 525 |
|
| 526 |
memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len);
|
| 527 |
buffer[len] = '\0';
|
| 528 |
|
| 529 |
moveto(output_current_row, 0);
|
| 530 |
clrtoeol();
|
| 531 |
prints("%s", buffer);
|
| 532 |
line_current++;
|
| 533 |
output_current_row++;
|
| 534 |
}
|
| 535 |
|
| 536 |
cleanup:
|
| 537 |
return ch;
|
| 538 |
}
|
| 539 |
|
| 540 |
static int display_file_key_handler(int *p_key, DISPLAY_CTX *p_ctx)
|
| 541 |
{
|
| 542 |
switch (*p_key)
|
| 543 |
{
|
| 544 |
case 0: // Set msg
|
| 545 |
snprintf(p_ctx->msg, sizeof(p_ctx->msg),
|
| 546 |
"| 返回[\033[32m←\033[33m,\033[32mESC\033[33m] | "
|
| 547 |
"移动[\033[32m↑\033[33m/\033[32m↓\033[33m/\033[32mPgUp\033[33m/\033[32mPgDn\033[33m] | "
|
| 548 |
"帮助[\033[32mh\033[33m] |");
|
| 549 |
break;
|
| 550 |
}
|
| 551 |
|
| 552 |
return 0;
|
| 553 |
}
|
| 554 |
|
| 555 |
int display_file(const char *filename, int eof_exit)
|
| 556 |
{
|
| 557 |
int ret;
|
| 558 |
const void *p_shm;
|
| 559 |
size_t data_len;
|
| 560 |
long line_total;
|
| 561 |
const void *p_data;
|
| 562 |
const long *p_line_offsets;
|
| 563 |
|
| 564 |
if ((p_shm = get_file_shm_readonly(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL)
|
| 565 |
{
|
| 566 |
log_error("get_file_shm(%s) error\n", filename);
|
| 567 |
return KEY_NULL;
|
| 568 |
}
|
| 569 |
|
| 570 |
if (user_online_update("VIEW_FILE") < 0)
|
| 571 |
{
|
| 572 |
log_error("user_online_update(VIEW_FILE) error\n");
|
| 573 |
}
|
| 574 |
|
| 575 |
ret = display_data(p_data, line_total, p_line_offsets, eof_exit, display_file_key_handler, DATA_READ_HELP);
|
| 576 |
|
| 577 |
if (detach_file_shm(p_shm) < 0)
|
| 578 |
{
|
| 579 |
log_error("detach_file_shm(%s) error\n", filename);
|
| 580 |
}
|
| 581 |
|
| 582 |
return ret;
|
| 583 |
}
|
| 584 |
|
| 585 |
int show_top(const char *str_left, const char *str_middle, const char *str_right)
|
| 586 |
{
|
| 587 |
char str_left_f[STR_TOP_LEFT_MAX_LEN + 1];
|
| 588 |
char str_middle_f[STR_TOP_MIDDLE_MAX_LEN + 1];
|
| 589 |
char str_right_f[STR_TOP_RIGHT_MAX_LEN + 1];
|
| 590 |
int str_left_len;
|
| 591 |
int str_middle_len;
|
| 592 |
int str_right_len;
|
| 593 |
int eol;
|
| 594 |
int len;
|
| 595 |
|
| 596 |
strncpy(str_left_f, str_left, sizeof(str_left_f) - 1);
|
| 597 |
str_left_f[sizeof(str_left_f) - 1] = '\0';
|
| 598 |
len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN / 2, &eol, &str_left_len, 1);
|
| 599 |
str_left_f[len] = '\0';
|
| 600 |
|
| 601 |
strncpy(str_middle_f, str_middle, sizeof(str_middle_f) - 1);
|
| 602 |
str_middle_f[sizeof(str_middle_f) - 1] = '\0';
|
| 603 |
len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN / 2, &eol, &str_middle_len, 1);
|
| 604 |
str_middle_f[len] = '\0';
|
| 605 |
|
| 606 |
strncpy(str_right_f, str_right, sizeof(str_right_f) - 1);
|
| 607 |
str_right_f[sizeof(str_right_f) - 1] = '\0';
|
| 608 |
len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN / 2, &eol, &str_right_len, 1);
|
| 609 |
str_right_f[len] = '\0';
|
| 610 |
|
| 611 |
moveto(1, 0);
|
| 612 |
clrtoeol();
|
| 613 |
prints("\033[1;44;33m%s\033[37m%*s%s\033[33m%*s%s\033[m",
|
| 614 |
str_left_f, 44 - str_left_len - str_middle_len, "",
|
| 615 |
str_middle_f, 36 - str_right_len, "", str_right_f);
|
| 616 |
|
| 617 |
return 0;
|
| 618 |
}
|
| 619 |
|
| 620 |
int show_bottom(const char *msg)
|
| 621 |
{
|
| 622 |
char str_time[LINE_BUFFER_LEN];
|
| 623 |
time_t time_online;
|
| 624 |
struct tm *tm_online;
|
| 625 |
char msg_f[LINE_BUFFER_LEN];
|
| 626 |
int eol;
|
| 627 |
int msg_len;
|
| 628 |
int len;
|
| 629 |
int len_username;
|
| 630 |
char str_tm_online[LINE_BUFFER_LEN];
|
| 631 |
|
| 632 |
get_time_str(str_time, sizeof(str_time));
|
| 633 |
|
| 634 |
msg_f[0] = '\0';
|
| 635 |
msg_len = 0;
|
| 636 |
if (msg != NULL)
|
| 637 |
{
|
| 638 |
strncpy(msg_f, msg, sizeof(msg_f) - 1);
|
| 639 |
msg_f[sizeof(msg_f) - 1] = '\0';
|
| 640 |
len = split_line(msg_f, 23, &eol, &msg_len, 1);
|
| 641 |
msg_f[len] = '\0';
|
| 642 |
}
|
| 643 |
|
| 644 |
len_username = (int)strnlen(BBS_username, sizeof(BBS_username));
|
| 645 |
|
| 646 |
time_online = time(NULL) - BBS_login_tm;
|
| 647 |
tm_online = gmtime(&time_online);
|
| 648 |
if (tm_online->tm_mday > 1)
|
| 649 |
{
|
| 650 |
snprintf(str_tm_online, sizeof(str_tm_online),
|
| 651 |
"\033[36m%2d\033[33m天\033[36m%2d\033[33m时",
|
| 652 |
tm_online->tm_mday - 1, tm_online->tm_hour);
|
| 653 |
}
|
| 654 |
else
|
| 655 |
{
|
| 656 |
snprintf(str_tm_online, sizeof(str_tm_online),
|
| 657 |
"\033[36m%2d\033[33m时\033[36m%2d\033[33m分",
|
| 658 |
tm_online->tm_hour, tm_online->tm_min);
|
| 659 |
}
|
| 660 |
|
| 661 |
moveto(SCREEN_ROWS, 0);
|
| 662 |
clrtoeol();
|
| 663 |
prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m帐号[\033[36m%s\033[33m][%s\033[33m]\033[m",
|
| 664 |
str_time, msg_f, 38 - msg_len - len_username, "", BBS_username, str_tm_online);
|
| 665 |
|
| 666 |
return 0;
|
| 667 |
}
|
| 668 |
|
| 669 |
int show_active_board()
|
| 670 |
{
|
| 671 |
static int line_current = 0;
|
| 672 |
static const void *p_shm = NULL;
|
| 673 |
static size_t data_len;
|
| 674 |
static long line_total;
|
| 675 |
static const void *p_data;
|
| 676 |
static const long *p_line_offsets;
|
| 677 |
|
| 678 |
static time_t t_last_show = 0;
|
| 679 |
static int line_last = 0;
|
| 680 |
|
| 681 |
char buffer[LINE_BUFFER_LEN];
|
| 682 |
long int len;
|
| 683 |
|
| 684 |
if (p_shm == NULL)
|
| 685 |
{
|
| 686 |
if ((p_shm = get_file_shm_readonly(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL)
|
| 687 |
{
|
| 688 |
log_error("get_file_shm(%s) error\n", DATA_ACTIVE_BOARD);
|
| 689 |
return KEY_NULL;
|
| 690 |
}
|
| 691 |
}
|
| 692 |
|
| 693 |
if (time(NULL) - t_last_show >= 10)
|
| 694 |
{
|
| 695 |
line_last = line_current;
|
| 696 |
t_last_show = time(NULL);
|
| 697 |
}
|
| 698 |
else
|
| 699 |
{
|
| 700 |
line_current = line_last;
|
| 701 |
}
|
| 702 |
|
| 703 |
clrline(2, 2 + ACTIVE_BOARD_HEIGHT);
|
| 704 |
|
| 705 |
for (int i = 0; i < ACTIVE_BOARD_HEIGHT; i++)
|
| 706 |
{
|
| 707 |
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current];
|
| 708 |
if (len >= LINE_BUFFER_LEN)
|
| 709 |
{
|
| 710 |
log_error("buffer overflow: len=%ld(%ld - %ld) line=%ld \n",
|
| 711 |
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current);
|
| 712 |
len = LINE_BUFFER_LEN - 1;
|
| 713 |
}
|
| 714 |
|
| 715 |
memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len);
|
| 716 |
buffer[len] = '\0';
|
| 717 |
|
| 718 |
moveto(3 + i, 0);
|
| 719 |
prints("%s", buffer);
|
| 720 |
|
| 721 |
line_current++;
|
| 722 |
if (line_current >= line_total)
|
| 723 |
{
|
| 724 |
line_current = 0;
|
| 725 |
break;
|
| 726 |
}
|
| 727 |
}
|
| 728 |
|
| 729 |
return 0;
|
| 730 |
}
|
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| 
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