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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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screen.c - description |
/* |
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------------------- |
* screen |
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begin : Mon Oct 18 2004 |
* - advanced telnet-based user interactive input / output features |
| 5 |
copyright : (C) 2004 by Leaflet |
* |
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email : leaflet@leafok.com |
* Copyright (C) 2004-2025 Leaflet <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 2 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" |
| 10 |
#include "common.h" |
#include "common.h" |
| 11 |
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#include "editor.h" |
| 12 |
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#include "file_loader.h" |
| 13 |
#include "io.h" |
#include "io.h" |
| 14 |
#include <sys/types.h> |
#include "log.h" |
| 15 |
#include <sys/stat.h> |
#include "login.h" |
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#include "screen.h" |
| 17 |
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#include "str_process.h" |
| 18 |
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#include <ctype.h> |
| 19 |
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#include <errno.h> |
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#include <fcntl.h> |
| 21 |
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#include <string.h> |
| 22 |
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#include <stdlib.h> |
| 23 |
#include <unistd.h> |
#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> |
| 27 |
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#include <sys/types.h> |
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#define ACTIVE_BOARD_HEIGHT 8 |
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#define STR_TOP_LEFT_MAX_LEN 80 |
| 32 |
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#define STR_TOP_MIDDLE_MAX_LEN 40 |
| 33 |
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#define STR_TOP_RIGHT_MAX_LEN 80 |
| 34 |
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| 35 |
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static size_t get_time_str(char *s, size_t len) |
| 36 |
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{ |
| 37 |
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time_t curtime; |
| 38 |
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struct tm local_tm; |
| 39 |
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| 40 |
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time(&curtime); |
| 41 |
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localtime_r(&curtime, &local_tm); |
| 42 |
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size_t j = strftime(s, len, "%m/%d %H:%M %Z", &local_tm); |
| 43 |
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| 44 |
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return j; |
| 45 |
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} |
| 46 |
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| 47 |
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void moveto(int row, int col) |
| 48 |
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{ |
| 49 |
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if (row >= 0) |
| 50 |
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{ |
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prints("\033[%d;%dH", row, col); |
| 52 |
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} |
| 53 |
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else |
| 54 |
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{ |
| 55 |
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prints("\r"); |
| 56 |
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} |
| 57 |
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} |
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void clrtoeol() |
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{ |
| 61 |
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prints(CTRL_SEQ_CLR_LINE); |
| 62 |
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} |
| 63 |
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| 64 |
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void clrline(int line_begin, int line_end) |
| 65 |
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{ |
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int i; |
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| 68 |
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for (i = line_begin; i <= line_end; i++) |
| 69 |
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{ |
| 70 |
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moveto(i, 0); |
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prints(CTRL_SEQ_CLR_LINE); |
| 72 |
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} |
| 73 |
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} |
| 74 |
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| 75 |
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void clrtobot(int line_begin) |
| 76 |
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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); |
| 80 |
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} |
| 81 |
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| 82 |
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void clearscr() |
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{ |
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prints("\033[2J"); |
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moveto(0, 0); |
| 86 |
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} |
| 87 |
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| 88 |
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inline int press_any_key() |
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{ |
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return press_any_key_ex(" \033[1;33m按任意键继续...\033[m", 60); |
| 91 |
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} |
| 92 |
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| 93 |
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int press_any_key_ex(const char *msg, int sec) |
| 94 |
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{ |
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int ch = 0; |
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int duration = 0; |
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time_t t_begin = time(NULL); |
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| 99 |
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moveto(SCREEN_ROWS, 0); |
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clrtoeol(); |
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prints(msg); |
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iflush(); |
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igetch_reset(); |
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| 107 |
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do |
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{ |
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ch = igetch_t(sec - duration); |
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duration = (int)(time(NULL) - t_begin); |
| 111 |
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} while (!SYS_server_exit && ch == 0 && duration < 60); |
| 112 |
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| 113 |
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return ch; |
| 114 |
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} |
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| 116 |
int screen_lines = 24; |
void set_input_echo(int echo) |
| 117 |
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{ |
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if (echo) |
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{ |
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outc('\x83'); // ASCII code 131 |
| 121 |
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} |
| 122 |
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else |
| 123 |
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{ |
| 124 |
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// outc ('\x85'); // ASCII code 133 |
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prints("\xff\xfb\x01\xff\xfb\x03"); |
| 126 |
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} |
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iflush(); |
| 128 |
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} |
| 129 |
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| 130 |
void |
static int _str_input(char *buffer, int buf_size, int max_display_len, int echo_mode) |
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moveto (int row, int col) |
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| 131 |
{ |
{ |
| 132 |
if (row >= 0) |
int ch; |
| 133 |
{ |
int offset = 0; |
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prints ("\033[%d;%dH", row, col); |
int eol; |
| 135 |
} |
int display_len; |
| 136 |
else |
char input_str[4]; |
| 137 |
{ |
int str_len = 0; |
| 138 |
prints ("\r"); |
char c; |
| 139 |
} |
|
| 140 |
iflush (); |
buffer[buf_size - 1] = '\0'; |
| 141 |
} |
offset = split_line(buffer, max_display_len, &eol, &display_len, 0); |
| 142 |
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| 143 |
void |
igetch_reset(); |
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clrtoeol () |
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{ |
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prints ("\033[K"); |
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iflush (); |
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} |
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void |
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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 ("\033[K"); |
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} |
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iflush (); |
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} |
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void |
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clearscr () |
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{ |
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prints ("\33[2J"); |
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moveto (0, 0); |
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iflush (); |
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} |
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int |
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press_any_key () |
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{ |
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moveto (screen_lines, 0); |
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clrtoeol (); |
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prints (" \033[1;33m...\033[0;37m"); |
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iflush (); |
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return igetch (); |
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} |
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void |
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set_input_echo(int echo) |
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{ |
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char temp[256]; |
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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 (); |
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igetch (); |
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} |
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} |
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int |
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str_input (char *buffer, int buffer_length, int echo_mode) |
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{ |
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char buf[256], ch; |
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int c, offset = 0, len, loop = 1, i, hz = 0; |
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memset (buffer, '\0', buffer_length); |
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while (c = igetch ()) |
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{ |
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if (c == CR) |
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break; |
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if (c == LF) |
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continue; |
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if (c == BACKSPACE) |
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{ |
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if (offset > 0) |
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{ |
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buffer[--offset] = '\0'; |
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prints ("\b \b"); |
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// clrtoeol (); |
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iflush (); |
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} |
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continue; |
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} |
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if (c > 255 || iscntrl (c)) |
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{ |
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continue; |
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} |
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if (c > 127 && c <= 255) |
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{ |
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hz = (!hz); |
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} |
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if (offset >= buffer_length) |
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{ |
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outc ('\a'); |
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continue; |
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} |
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buffer[offset++] = (char) c; |
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buffer[offset] = '\0'; |
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switch (echo_mode) |
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{ |
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case 0: |
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outc ((char) c); |
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break; |
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case 1: |
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outc ('*'); |
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break; |
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} |
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if (!hz) |
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{ |
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iflush (); |
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} |
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} |
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prints ("\r\n"); |
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iflush (); |
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return offset; |
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} |
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int |
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display_file (const char *filename) |
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{ |
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char buffer[260]; |
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FILE *fin; |
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int i; |
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if ((fin = fopen (filename, "r")) != NULL) |
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{ |
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while (fgets (buffer, 255, fin)) |
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{ |
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i = strlen (buffer); |
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if (buffer[i - 1] == '\n' && buffer[i - 2] != '\r') |
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{ |
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buffer[i - 1] = '\r'; |
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buffer[i] = '\n'; |
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buffer[i + 1] = '\0'; |
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} |
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prints (buffer); |
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iflush (); |
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} |
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fclose(fin); |
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return 0; |
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} |
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return -1; |
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} |
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int |
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display_file_ex (const char *filename, int begin_line, int wait) |
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{ |
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char buffer[260], temp[256]; |
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int i, ch, input_ok; |
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long int line, c_line_begin = 0, c_line_total=0; |
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long int f_line, f_size, f_offset; |
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FILE *fin; |
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struct stat f_stat; |
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clrline (begin_line, screen_lines); |
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line = begin_line; |
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moveto (line, 0); |
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if ((fin = fopen (filename, "r")) != NULL) |
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{ |
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if (fstat (fileno (fin), &f_stat) != 0) |
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{ |
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log_error ("Get file stat failed\n"); |
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return -1; |
|
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} |
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f_size = f_stat.st_size; |
|
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while (fgets (buffer, 255, fin)) |
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c_line_total ++; |
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rewind (fin); |
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while (fgets (buffer, 255, fin)) |
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{ |
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if (line >= screen_lines) |
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{ |
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f_offset = ftell (fin); |
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moveto (screen_lines, 0); |
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prints |
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("\033[1;44;32m滹 (%d%%)\033[33m <q> //PgUp/PgDn ƶ ? ˵ \033[m", |
|
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(f_offset-strlen(buffer)) * 100 / f_size); |
|
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iflush (); |
|
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|
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input_ok = 0; |
|
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while (!input_ok) |
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{ |
|
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ch = igetch (); |
|
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input_ok = 1; |
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switch (ch) |
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{ |
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case KEY_UP: |
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c_line_begin--; |
|
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if (c_line_begin >= 0) |
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{ |
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rewind (fin); |
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for (f_line = 0; f_line < c_line_begin; f_line++) |
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{ |
|
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if (fgets (buffer, 255, fin) == NULL) |
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goto exit; |
|
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} |
|
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} |
|
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else |
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{ |
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goto exit; |
|
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} |
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break; |
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case KEY_DOWN: |
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case CR: |
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c_line_begin++; |
|
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rewind (fin); |
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for (f_line = 0; f_line < c_line_begin; f_line++) |
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{ |
|
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if (fgets (buffer, 255, fin) == NULL) |
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goto exit; |
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} |
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break; |
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case KEY_PGUP: |
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case Ctrl ('B'): |
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if (c_line_begin > 0) |
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c_line_begin -= (screen_lines - begin_line - 1); |
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else |
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goto exit; |
|
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if (c_line_begin < 0) |
|
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c_line_begin = 0; |
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rewind (fin); |
|
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for (f_line = 0; f_line < c_line_begin; f_line++) |
|
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{ |
|
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if (fgets (buffer, 255, fin) == NULL) |
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goto exit; |
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} |
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break; |
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case KEY_RIGHT: |
|
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case KEY_PGDOWN: |
|
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case Ctrl ('F'): |
|
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case KEY_SPACE: |
|
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c_line_begin += (screen_lines - begin_line - 1); |
|
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if (c_line_begin + (screen_lines - begin_line) > c_line_total) |
|
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c_line_begin = c_line_total - (screen_lines - begin_line); |
|
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rewind (fin); |
|
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for (f_line = 0; f_line < c_line_begin; f_line++) |
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{ |
|
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if (fgets (buffer, 255, fin) == NULL) |
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goto exit; |
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} |
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break; |
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case KEY_LEFT: |
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case 'q': |
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case 'Q': |
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goto exit; |
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break; |
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case '?': |
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case 'h': |
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case 'H': |
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//Display help information |
|
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strcpy (temp, app_home_dir); |
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strcat (temp, "data/read_help.txt"); |
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display_file_ex (temp, begin_line, 1); |
|
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//Refresh after display help information |
|
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rewind (fin); |
|
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for (f_line = 0; f_line < c_line_begin; f_line++) |
|
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{ |
|
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if (fgets (buffer, 255, fin) == NULL) |
|
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goto exit; |
|
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} |
|
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break; |
|
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default: |
|
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input_ok = 0; |
|
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break; |
|
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} |
|
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} |
|
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|
|
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clrline (begin_line, screen_lines); |
|
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line = begin_line; |
|
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moveto (line, 0); |
|
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|
|
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continue; |
|
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} |
|
|
|
|
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i = strlen (buffer); |
|
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if (buffer[i - 1] == '\n' && buffer[i - 2] != '\r') |
|
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{ |
|
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buffer[i - 1] = '\r'; |
|
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buffer[i] = '\n'; |
|
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buffer[i + 1] = '\0'; |
|
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} |
|
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prints (buffer); |
|
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iflush (); |
|
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|
|
|
line++; |
|
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} |
|
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if (wait) |
|
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ch = press_any_key(); |
|
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else |
|
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ch = 0; |
|
| 144 |
|
|
| 145 |
exit: |
while (!SYS_server_exit) |
| 146 |
fclose (fin); |
{ |
| 147 |
|
ch = igetch_t(MIN(BBS_max_user_idle_time, 60)); |
| 148 |
|
|
| 149 |
|
if (ch == CR) |
| 150 |
|
{ |
| 151 |
|
break; |
| 152 |
|
} |
| 153 |
|
else if (ch == KEY_TIMEOUT || ch == KEY_NULL) // timeout or broken pipe |
| 154 |
|
{ |
| 155 |
|
return -1; |
| 156 |
|
} |
| 157 |
|
else if (ch == LF || ch == '\0') |
| 158 |
|
{ |
| 159 |
|
continue; |
| 160 |
|
} |
| 161 |
|
else if (ch == BACKSPACE) |
| 162 |
|
{ |
| 163 |
|
if (offset > 0) |
| 164 |
|
{ |
| 165 |
|
offset--; |
| 166 |
|
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
| 167 |
|
{ |
| 168 |
|
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
| 169 |
|
{ |
| 170 |
|
offset--; |
| 171 |
|
} |
| 172 |
|
display_len--; |
| 173 |
|
prints("\033[D \033[D"); |
| 174 |
|
} |
| 175 |
|
buffer[offset] = '\0'; |
| 176 |
|
display_len--; |
| 177 |
|
prints("\033[D \033[D"); |
| 178 |
|
iflush(); |
| 179 |
|
} |
| 180 |
|
continue; |
| 181 |
|
} |
| 182 |
|
else if (ch > 255 || iscntrl(ch)) |
| 183 |
|
{ |
| 184 |
|
continue; |
| 185 |
|
} |
| 186 |
|
else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
| 187 |
|
{ |
| 188 |
|
str_len = 0; |
| 189 |
|
c = (char)(ch & 0xf0); |
| 190 |
|
while (c & 0x80) |
| 191 |
|
{ |
| 192 |
|
input_str[str_len] = (char)(ch - 256); |
| 193 |
|
str_len++; |
| 194 |
|
c = (c & 0x7f) << 1; |
| 195 |
|
|
| 196 |
|
if ((c & 0x80) == 0) // Input completed |
| 197 |
|
{ |
| 198 |
|
break; |
| 199 |
|
} |
| 200 |
|
|
| 201 |
|
// Expect additional bytes of input |
| 202 |
|
ch = igetch(100); // 0.1 second |
| 203 |
|
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
| 204 |
|
{ |
| 205 |
|
#ifdef _DEBUG |
| 206 |
|
log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len); |
| 207 |
|
#endif |
| 208 |
|
str_len = 0; |
| 209 |
|
break; |
| 210 |
|
} |
| 211 |
|
} |
| 212 |
|
|
| 213 |
return ch; |
if (str_len == 0) // Incomplete input |
| 214 |
} |
{ |
| 215 |
|
continue; |
| 216 |
|
} |
| 217 |
|
|
| 218 |
|
if (offset + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character |
| 219 |
|
{ |
| 220 |
|
outc('\a'); |
| 221 |
|
iflush(); |
| 222 |
|
continue; |
| 223 |
|
} |
| 224 |
|
|
| 225 |
|
memcpy(buffer + offset, input_str, (size_t)str_len); |
| 226 |
|
offset += str_len; |
| 227 |
|
buffer[offset] = '\0'; |
| 228 |
|
display_len += 2; |
| 229 |
|
|
| 230 |
|
switch (echo_mode) |
| 231 |
|
{ |
| 232 |
|
case DOECHO: |
| 233 |
|
prints(input_str); |
| 234 |
|
break; |
| 235 |
|
case NOECHO: |
| 236 |
|
prints("**"); |
| 237 |
|
break; |
| 238 |
|
} |
| 239 |
|
} |
| 240 |
|
else if (ch >= 32 && ch < 127) // Printable character |
| 241 |
|
{ |
| 242 |
|
if (offset + 1 > buf_size - 1 || display_len + 1 > max_display_len) |
| 243 |
|
{ |
| 244 |
|
outc('\a'); |
| 245 |
|
iflush(); |
| 246 |
|
continue; |
| 247 |
|
} |
| 248 |
|
|
| 249 |
|
buffer[offset++] = (char)ch; |
| 250 |
|
buffer[offset] = '\0'; |
| 251 |
|
display_len++; |
| 252 |
|
|
| 253 |
|
switch (echo_mode) |
| 254 |
|
{ |
| 255 |
|
case DOECHO: |
| 256 |
|
outc((char)ch); |
| 257 |
|
break; |
| 258 |
|
case NOECHO: |
| 259 |
|
outc('*'); |
| 260 |
|
break; |
| 261 |
|
} |
| 262 |
|
} |
| 263 |
|
else // Invalid character |
| 264 |
|
{ |
| 265 |
|
continue; |
| 266 |
|
} |
| 267 |
|
|
| 268 |
|
iflush(); |
| 269 |
|
} |
| 270 |
|
|
| 271 |
|
return offset; |
| 272 |
|
} |
| 273 |
|
|
| 274 |
|
int str_input(char *buffer, int buf_size, int echo_mode) |
| 275 |
|
{ |
| 276 |
|
int len; |
| 277 |
|
|
| 278 |
|
buffer[0] = '\0'; |
| 279 |
|
|
| 280 |
|
len = _str_input(buffer, buf_size, buf_size, echo_mode); |
| 281 |
|
|
| 282 |
|
prints("\r\n"); |
| 283 |
|
iflush(); |
| 284 |
|
|
| 285 |
|
return len; |
| 286 |
|
} |
| 287 |
|
|
| 288 |
|
int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int max_display_len) |
| 289 |
|
{ |
| 290 |
|
int len = 0; |
| 291 |
|
int col_cur = 0; |
| 292 |
|
int ch; |
| 293 |
|
int offset = 0; |
| 294 |
|
int eol; |
| 295 |
|
int display_len; |
| 296 |
|
char input_str[4]; |
| 297 |
|
int str_len = 0; |
| 298 |
|
char c; |
| 299 |
|
|
| 300 |
|
buffer[buf_size - 1] = '\0'; |
| 301 |
|
offset = split_line(buffer, max_display_len, &eol, &display_len, 0); |
| 302 |
|
buffer[offset] = '\0'; |
| 303 |
|
len = offset; |
| 304 |
|
col_cur = col + str_length(prompt, 1) + display_len; |
| 305 |
|
|
| 306 |
|
moveto(row, col); |
| 307 |
|
prints("%s", prompt); |
| 308 |
|
prints("%s", buffer); |
| 309 |
|
prints("%*s", max_display_len - display_len, ""); |
| 310 |
|
moveto(row, col_cur); |
| 311 |
|
iflush(); |
| 312 |
|
|
| 313 |
|
igetch_reset(); |
| 314 |
|
|
| 315 |
|
while (!SYS_server_exit) |
| 316 |
|
{ |
| 317 |
|
ch = igetch_t(MIN(BBS_max_user_idle_time, 60)); |
| 318 |
|
|
| 319 |
|
if (ch == CR) |
| 320 |
|
{ |
| 321 |
|
break; |
| 322 |
|
} |
| 323 |
|
else if (ch == KEY_TIMEOUT || ch == KEY_NULL) // timeout or broken pipe |
| 324 |
|
{ |
| 325 |
|
return -1; |
| 326 |
|
} |
| 327 |
|
else if (ch == LF || ch == '\0') |
| 328 |
|
{ |
| 329 |
|
continue; |
| 330 |
|
} |
| 331 |
|
else if (ch == BACKSPACE) |
| 332 |
|
{ |
| 333 |
|
if (offset > 0) |
| 334 |
|
{ |
| 335 |
|
str_len = 1; |
| 336 |
|
offset--; |
| 337 |
|
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
| 338 |
|
{ |
| 339 |
|
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
| 340 |
|
{ |
| 341 |
|
str_len++; |
| 342 |
|
offset--; |
| 343 |
|
} |
| 344 |
|
display_len--; |
| 345 |
|
col_cur--; |
| 346 |
|
} |
| 347 |
|
|
| 348 |
|
memmove(buffer + offset, buffer + offset + str_len, (size_t)(len - offset - str_len)); |
| 349 |
|
len -= str_len; |
| 350 |
|
buffer[len] = '\0'; |
| 351 |
|
display_len--; |
| 352 |
|
col_cur--; |
| 353 |
|
|
| 354 |
|
moveto(row, col_cur); |
| 355 |
|
prints("%s", buffer + offset); |
| 356 |
|
prints("%*s", max_display_len - display_len, ""); |
| 357 |
|
moveto(row, col_cur); |
| 358 |
|
iflush(); |
| 359 |
|
} |
| 360 |
|
continue; |
| 361 |
|
} |
| 362 |
|
else if (ch == KEY_DEL) |
| 363 |
|
{ |
| 364 |
|
if (offset < len) |
| 365 |
|
{ |
| 366 |
|
if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
| 367 |
|
{ |
| 368 |
|
str_len = 0; |
| 369 |
|
c = (char)(buffer[offset] & 0xf0); |
| 370 |
|
while (c & 0x80) |
| 371 |
|
{ |
| 372 |
|
str_len++; |
| 373 |
|
c = (c & 0x7f) << 1; |
| 374 |
|
} |
| 375 |
|
display_len--; |
| 376 |
|
} |
| 377 |
|
else |
| 378 |
|
{ |
| 379 |
|
str_len = 1; |
| 380 |
|
} |
| 381 |
|
|
| 382 |
|
memmove(buffer + offset, buffer + offset + str_len, (size_t)(len - offset - str_len)); |
| 383 |
|
len -= str_len; |
| 384 |
|
buffer[len] = '\0'; |
| 385 |
|
display_len--; |
| 386 |
|
|
| 387 |
|
moveto(row, col_cur); |
| 388 |
|
prints("%s", buffer + offset); |
| 389 |
|
prints("%*s", max_display_len - display_len, ""); |
| 390 |
|
moveto(row, col_cur); |
| 391 |
|
iflush(); |
| 392 |
|
} |
| 393 |
|
continue; |
| 394 |
|
} |
| 395 |
|
else if (ch == KEY_LEFT) |
| 396 |
|
{ |
| 397 |
|
if (offset > 0) |
| 398 |
|
{ |
| 399 |
|
str_len = 1; |
| 400 |
|
offset--; |
| 401 |
|
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
| 402 |
|
{ |
| 403 |
|
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
| 404 |
|
{ |
| 405 |
|
str_len++; |
| 406 |
|
offset--; |
| 407 |
|
} |
| 408 |
|
col_cur--; |
| 409 |
|
} |
| 410 |
|
col_cur--; |
| 411 |
|
|
| 412 |
|
moveto(row, col_cur); |
| 413 |
|
iflush(); |
| 414 |
|
} |
| 415 |
|
continue; |
| 416 |
|
} |
| 417 |
|
else if (ch == KEY_RIGHT) |
| 418 |
|
{ |
| 419 |
|
if (offset < len) |
| 420 |
|
{ |
| 421 |
|
str_len = 0; |
| 422 |
|
if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
| 423 |
|
{ |
| 424 |
|
c = (char)(buffer[offset] & 0xf0); |
| 425 |
|
while (c & 0x80) |
| 426 |
|
{ |
| 427 |
|
str_len++; |
| 428 |
|
c = (c & 0x7f) << 1; |
| 429 |
|
} |
| 430 |
|
col_cur++; |
| 431 |
|
} |
| 432 |
|
else |
| 433 |
|
{ |
| 434 |
|
str_len = 1; |
| 435 |
|
} |
| 436 |
|
|
| 437 |
|
col_cur++; |
| 438 |
|
offset += str_len; |
| 439 |
|
|
| 440 |
|
moveto(row, col_cur); |
| 441 |
|
iflush(); |
| 442 |
|
} |
| 443 |
|
continue; |
| 444 |
|
} |
| 445 |
|
else if (ch == KEY_HOME || ch == KEY_UP) |
| 446 |
|
{ |
| 447 |
|
if (offset > 0) |
| 448 |
|
{ |
| 449 |
|
offset = 0; |
| 450 |
|
col_cur = col + str_length(prompt, 1); |
| 451 |
|
|
| 452 |
|
moveto(row, col_cur); |
| 453 |
|
iflush(); |
| 454 |
|
} |
| 455 |
|
continue; |
| 456 |
|
} |
| 457 |
|
else if (ch == KEY_END || ch == KEY_DOWN) |
| 458 |
|
{ |
| 459 |
|
if (offset < len) |
| 460 |
|
{ |
| 461 |
|
offset = len; |
| 462 |
|
col_cur = col + str_length(prompt, 1) + display_len; |
| 463 |
|
|
| 464 |
|
moveto(row, col_cur); |
| 465 |
|
iflush(); |
| 466 |
|
} |
| 467 |
|
continue; |
| 468 |
|
} |
| 469 |
|
else if (ch > 255 || iscntrl(ch)) |
| 470 |
|
{ |
| 471 |
|
continue; |
| 472 |
|
} |
| 473 |
|
else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
| 474 |
|
{ |
| 475 |
|
str_len = 0; |
| 476 |
|
c = (char)(ch & 0xf0); |
| 477 |
|
while (c & 0x80) |
| 478 |
|
{ |
| 479 |
|
input_str[str_len] = (char)(ch - 256); |
| 480 |
|
str_len++; |
| 481 |
|
c = (c & 0x7f) << 1; |
| 482 |
|
|
| 483 |
|
if ((c & 0x80) == 0) // Input completed |
| 484 |
|
{ |
| 485 |
|
break; |
| 486 |
|
} |
| 487 |
|
|
| 488 |
|
// Expect additional bytes of input |
| 489 |
|
ch = igetch(100); // 0.1 second |
| 490 |
|
if (ch == KEY_NULL || ch == KEY_TIMEOUT) // Ignore received bytes if no futher input |
| 491 |
|
{ |
| 492 |
|
#ifdef _DEBUG |
| 493 |
|
log_error("Ignore %d bytes of incomplete UTF8 character\n", str_len); |
| 494 |
|
#endif |
| 495 |
|
str_len = 0; |
| 496 |
|
break; |
| 497 |
|
} |
| 498 |
|
} |
| 499 |
|
|
| 500 |
|
if (str_len == 0) // Incomplete input |
| 501 |
|
{ |
| 502 |
|
continue; |
| 503 |
|
} |
| 504 |
|
|
| 505 |
|
if (len + str_len > buf_size - 1 || display_len + 2 > max_display_len) // No enough space for Chinese character |
| 506 |
|
{ |
| 507 |
|
outc('\a'); |
| 508 |
|
iflush(); |
| 509 |
|
continue; |
| 510 |
|
} |
| 511 |
|
|
| 512 |
|
memmove(buffer + offset + str_len, buffer + offset, (size_t)(len - offset)); |
| 513 |
|
memcpy(buffer + offset, input_str, (size_t)str_len); |
| 514 |
|
len += str_len; |
| 515 |
|
buffer[len] = '\0'; |
| 516 |
|
display_len += 2; |
| 517 |
|
|
| 518 |
|
moveto(row, col_cur); |
| 519 |
|
prints("%s", buffer + offset); |
| 520 |
|
prints("%*s", max_display_len - display_len, ""); |
| 521 |
|
|
| 522 |
|
col_cur += 2; |
| 523 |
|
|
| 524 |
|
moveto(row, col_cur); |
| 525 |
|
iflush(); |
| 526 |
|
|
| 527 |
|
offset += str_len; |
| 528 |
|
} |
| 529 |
|
else if (ch >= 32 && ch < 127) // Printable character |
| 530 |
|
{ |
| 531 |
|
if (len + 1 > buf_size - 1 || display_len + 1 > max_display_len) |
| 532 |
|
{ |
| 533 |
|
outc('\a'); |
| 534 |
|
iflush(); |
| 535 |
|
continue; |
| 536 |
|
} |
| 537 |
|
|
| 538 |
|
memmove(buffer + offset + 1, buffer + offset, (size_t)(len - offset)); |
| 539 |
|
buffer[offset] = (char)ch; |
| 540 |
|
len++; |
| 541 |
|
buffer[len] = '\0'; |
| 542 |
|
display_len++; |
| 543 |
|
|
| 544 |
|
moveto(row, col_cur); |
| 545 |
|
prints("%s", buffer + offset); |
| 546 |
|
prints("%*s", max_display_len - display_len, ""); |
| 547 |
|
|
| 548 |
|
col_cur++; |
| 549 |
|
|
| 550 |
|
moveto(row, col_cur); |
| 551 |
|
iflush(); |
| 552 |
|
|
| 553 |
|
offset++; |
| 554 |
|
} |
| 555 |
|
else // Invalid character |
| 556 |
|
{ |
| 557 |
|
continue; |
| 558 |
|
} |
| 559 |
|
} |
| 560 |
|
|
| 561 |
|
return len; |
| 562 |
|
} |
| 563 |
|
|
| 564 |
|
int display_data(const void *p_data, long display_line_total, const long *p_line_offsets, int eof_exit, |
| 565 |
|
display_data_key_handler key_handler, const char *help_filename) |
| 566 |
|
{ |
| 567 |
|
static int show_help = 1; |
| 568 |
|
char buffer[LINE_BUFFER_LEN]; |
| 569 |
|
DISPLAY_CTX ctx; |
| 570 |
|
int ch = 0; |
| 571 |
|
int input_ok; |
| 572 |
|
const int screen_begin_row = 1; |
| 573 |
|
const int screen_row_total = SCREEN_ROWS - screen_begin_row; |
| 574 |
|
int output_current_row = screen_begin_row; |
| 575 |
|
int output_end_row = SCREEN_ROWS - 1; |
| 576 |
|
long int line_current = 0; |
| 577 |
|
long int len; |
| 578 |
|
long int percentile; |
| 579 |
|
int loop; |
| 580 |
|
int eol, display_len; |
| 581 |
|
|
| 582 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 583 |
|
|
| 584 |
|
// update msg_ext with extended key handler |
| 585 |
|
if (key_handler(&ch, &ctx) != 0) |
| 586 |
|
{ |
| 587 |
|
return ch; |
| 588 |
|
} |
| 589 |
|
|
| 590 |
|
loop = 1; |
| 591 |
|
while (!SYS_server_exit && loop) |
| 592 |
|
{ |
| 593 |
|
if (eof_exit > 0 && line_current >= display_line_total && display_line_total <= screen_row_total) |
| 594 |
|
{ |
| 595 |
|
if (eof_exit == 1) |
| 596 |
|
{ |
| 597 |
|
ch = press_any_key(); |
| 598 |
|
} |
| 599 |
|
else // if (eof_exit == 2) |
| 600 |
|
{ |
| 601 |
|
iflush(); |
| 602 |
|
} |
| 603 |
|
|
| 604 |
|
loop = 0; |
| 605 |
|
break; |
| 606 |
|
} |
| 607 |
|
|
| 608 |
|
if (line_current >= display_line_total || output_current_row > output_end_row) |
| 609 |
|
{ |
| 610 |
|
ctx.reach_begin = (line_current < output_current_row ? 1 : 0); |
| 611 |
|
|
| 612 |
|
if (line_current - (output_current_row - screen_begin_row) + screen_row_total < display_line_total) |
| 613 |
|
{ |
| 614 |
|
percentile = (line_current - (output_current_row - screen_begin_row) + screen_row_total) * 100 / display_line_total; |
| 615 |
|
ctx.reach_end = 0; |
| 616 |
|
} |
| 617 |
|
else |
| 618 |
|
{ |
| 619 |
|
percentile = 100; |
| 620 |
|
ctx.reach_end = 1; |
| 621 |
|
} |
| 622 |
|
|
| 623 |
|
ctx.line_top = line_current - (output_current_row - screen_begin_row) + 1; |
| 624 |
|
ctx.line_bottom = MIN(line_current - (output_current_row - screen_begin_row) + screen_row_total, display_line_total); |
| 625 |
|
|
| 626 |
|
snprintf(buffer, sizeof(buffer), |
| 627 |
|
"\033[1;44;33m第\033[32m%ld\033[33m-\033[32m%ld\033[33m行 (\033[32m%ld%%\033[33m) %s", |
| 628 |
|
ctx.line_top, |
| 629 |
|
ctx.line_bottom, |
| 630 |
|
percentile, |
| 631 |
|
ctx.msg); |
| 632 |
|
|
| 633 |
|
len = split_line(buffer, SCREEN_COLS, &eol, &display_len, 1); |
| 634 |
|
for (; display_len < SCREEN_COLS; display_len++) |
| 635 |
|
{ |
| 636 |
|
buffer[len++] = ' '; |
| 637 |
|
} |
| 638 |
|
buffer[len] = '\0'; |
| 639 |
|
strncat(buffer, "\033[m", sizeof(buffer) - 1 - strnlen(buffer, sizeof(buffer))); |
| 640 |
|
|
| 641 |
|
moveto(SCREEN_ROWS, 0); |
| 642 |
|
prints("%s", buffer); |
| 643 |
|
iflush(); |
| 644 |
|
|
| 645 |
|
input_ok = 0; |
| 646 |
|
while (!SYS_server_exit && !input_ok) |
| 647 |
|
{ |
| 648 |
|
ch = igetch_t(BBS_max_user_idle_time); |
| 649 |
|
input_ok = 1; |
| 650 |
|
|
| 651 |
|
if (ch != KEY_NULL && ch != KEY_TIMEOUT) |
| 652 |
|
{ |
| 653 |
|
BBS_last_access_tm = time(NULL); |
| 654 |
|
} |
| 655 |
|
|
| 656 |
|
// extended key handler |
| 657 |
|
if (key_handler(&ch, &ctx) != 0) |
| 658 |
|
{ |
| 659 |
|
goto cleanup; |
| 660 |
|
} |
| 661 |
|
|
| 662 |
|
switch (ch) |
| 663 |
|
{ |
| 664 |
|
case KEY_NULL: |
| 665 |
|
log_error("KEY_NULL\n"); |
| 666 |
|
goto cleanup; |
| 667 |
|
case KEY_TIMEOUT: |
| 668 |
|
log_error("User input timeout\n"); |
| 669 |
|
goto cleanup; |
| 670 |
|
case KEY_HOME: |
| 671 |
|
if (line_current - output_current_row < 0) // Reach begin |
| 672 |
|
{ |
| 673 |
|
break; |
| 674 |
|
} |
| 675 |
|
line_current = 0; |
| 676 |
|
output_current_row = screen_begin_row; |
| 677 |
|
output_end_row = SCREEN_ROWS - 1; |
| 678 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 679 |
|
break; |
| 680 |
|
case KEY_END: |
| 681 |
|
if (display_line_total < screen_row_total) |
| 682 |
|
{ |
| 683 |
|
break; |
| 684 |
|
} |
| 685 |
|
line_current = display_line_total - screen_row_total; |
| 686 |
|
output_current_row = screen_begin_row; |
| 687 |
|
output_end_row = SCREEN_ROWS - 1; |
| 688 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 689 |
|
break; |
| 690 |
|
case KEY_UP: |
| 691 |
|
if (line_current - output_current_row < 0) // Reach begin |
| 692 |
|
{ |
| 693 |
|
break; |
| 694 |
|
} |
| 695 |
|
line_current -= output_current_row; |
| 696 |
|
output_current_row = screen_begin_row; |
| 697 |
|
// screen_end_line = screen_begin_line; |
| 698 |
|
// prints("\033[T"); // Scroll down 1 line |
| 699 |
|
output_end_row = SCREEN_ROWS - 1; // Legacy Fterm only works with this line |
| 700 |
|
break; |
| 701 |
|
case CR: |
| 702 |
|
case KEY_DOWN: |
| 703 |
|
if (line_current + (screen_row_total - (output_current_row - screen_begin_row)) >= display_line_total) // Reach end |
| 704 |
|
{ |
| 705 |
|
break; |
| 706 |
|
} |
| 707 |
|
line_current += (screen_row_total - (output_current_row - screen_begin_row)); |
| 708 |
|
output_current_row = screen_row_total; |
| 709 |
|
output_end_row = SCREEN_ROWS - 1; |
| 710 |
|
moveto(SCREEN_ROWS, 0); |
| 711 |
|
clrtoeol(); |
| 712 |
|
// prints("\033[S"); // Scroll up 1 line |
| 713 |
|
prints("\n"); // Legacy Cterm only works with this line |
| 714 |
|
break; |
| 715 |
|
case KEY_PGUP: |
| 716 |
|
if (line_current - output_current_row < 0) // Reach begin |
| 717 |
|
{ |
| 718 |
|
break; |
| 719 |
|
} |
| 720 |
|
line_current -= ((screen_row_total - 1) + (output_current_row - screen_begin_row)); |
| 721 |
|
if (line_current < 0) |
| 722 |
|
{ |
| 723 |
|
line_current = 0; |
| 724 |
|
} |
| 725 |
|
output_current_row = screen_begin_row; |
| 726 |
|
output_end_row = SCREEN_ROWS - 1; |
| 727 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 728 |
|
break; |
| 729 |
|
case KEY_SPACE: |
| 730 |
|
case KEY_PGDN: |
| 731 |
|
if (line_current + screen_row_total - (output_current_row - screen_begin_row) >= display_line_total) // Reach end |
| 732 |
|
{ |
| 733 |
|
break; |
| 734 |
|
} |
| 735 |
|
line_current += (screen_row_total - 1) - (output_current_row - screen_begin_row); |
| 736 |
|
if (line_current + screen_row_total > display_line_total) // No enough lines to display |
| 737 |
|
{ |
| 738 |
|
line_current = display_line_total - screen_row_total; |
| 739 |
|
} |
| 740 |
|
output_current_row = screen_begin_row; |
| 741 |
|
output_end_row = SCREEN_ROWS - 1; |
| 742 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 743 |
|
break; |
| 744 |
|
case KEY_ESC: |
| 745 |
|
case KEY_LEFT: |
| 746 |
|
loop = 0; |
| 747 |
|
break; |
| 748 |
|
case 'h': |
| 749 |
|
if (!show_help) // Not reentrant |
| 750 |
|
{ |
| 751 |
|
break; |
| 752 |
|
} |
| 753 |
|
// Display help information |
| 754 |
|
show_help = 0; |
| 755 |
|
display_file(help_filename, 1); |
| 756 |
|
show_help = 1; |
| 757 |
|
case KEY_F5: |
| 758 |
|
// Refresh after display help information |
| 759 |
|
line_current -= (output_current_row - screen_begin_row); |
| 760 |
|
output_current_row = screen_begin_row; |
| 761 |
|
output_end_row = SCREEN_ROWS - 1; |
| 762 |
|
clrline(output_current_row, SCREEN_ROWS); |
| 763 |
|
break; |
| 764 |
|
case 0: // Refresh bottom line |
| 765 |
|
break; |
| 766 |
|
default: |
| 767 |
|
input_ok = 0; |
| 768 |
|
break; |
| 769 |
|
} |
| 770 |
|
} |
| 771 |
|
|
| 772 |
|
continue; |
| 773 |
|
} |
| 774 |
|
|
| 775 |
|
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
| 776 |
|
if (len >= sizeof(buffer)) |
| 777 |
|
{ |
| 778 |
|
log_error("Buffer overflow: len=%ld(%ld - %ld) line=%ld \n", |
| 779 |
|
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 780 |
|
len = sizeof(buffer) - 1; |
| 781 |
|
} |
| 782 |
|
else if (len < 0) |
| 783 |
|
{ |
| 784 |
|
log_error("Incorrect line offsets: len=%ld(%ld - %ld) line=%ld \n", |
| 785 |
|
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 786 |
|
len = 0; |
| 787 |
|
} |
| 788 |
|
|
| 789 |
|
memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len); |
| 790 |
|
buffer[len] = '\0'; |
| 791 |
|
|
| 792 |
|
moveto(output_current_row, 0); |
| 793 |
|
clrtoeol(); |
| 794 |
|
prints("%s", buffer); |
| 795 |
|
line_current++; |
| 796 |
|
output_current_row++; |
| 797 |
|
} |
| 798 |
|
|
| 799 |
|
cleanup: |
| 800 |
|
return ch; |
| 801 |
|
} |
| 802 |
|
|
| 803 |
|
static int display_file_key_handler(int *p_key, DISPLAY_CTX *p_ctx) |
| 804 |
|
{ |
| 805 |
|
switch (*p_key) |
| 806 |
|
{ |
| 807 |
|
case 0: // Set msg |
| 808 |
|
snprintf(p_ctx->msg, sizeof(p_ctx->msg), |
| 809 |
|
"| 返回[\033[32m←\033[33m,\033[32mESC\033[33m] | " |
| 810 |
|
"移动[\033[32m↑\033[33m/\033[32m↓\033[33m/\033[32mPgUp\033[33m/\033[32mPgDn\033[33m] | " |
| 811 |
|
"帮助[\033[32mh\033[33m] |"); |
| 812 |
|
break; |
| 813 |
|
} |
| 814 |
|
|
| 815 |
|
return 0; |
| 816 |
|
} |
| 817 |
|
|
| 818 |
|
int display_file(const char *filename, int eof_exit) |
| 819 |
|
{ |
| 820 |
|
int ret; |
| 821 |
|
const void *p_shm; |
| 822 |
|
size_t data_len; |
| 823 |
|
long line_total; |
| 824 |
|
const void *p_data; |
| 825 |
|
const long *p_line_offsets; |
| 826 |
|
|
| 827 |
|
if ((p_shm = get_file_shm_readonly(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
| 828 |
|
{ |
| 829 |
|
log_error("get_file_shm(%s) error\n", filename); |
| 830 |
|
return KEY_NULL; |
| 831 |
|
} |
| 832 |
|
|
| 833 |
|
if (user_online_update("VIEW_FILE") < 0) |
| 834 |
|
{ |
| 835 |
|
log_error("user_online_update(VIEW_FILE) error\n"); |
| 836 |
|
} |
| 837 |
|
|
| 838 |
|
ret = display_data(p_data, line_total, p_line_offsets, eof_exit, display_file_key_handler, DATA_READ_HELP); |
| 839 |
|
|
| 840 |
|
if (detach_file_shm(p_shm) < 0) |
| 841 |
|
{ |
| 842 |
|
log_error("detach_file_shm(%s) error\n", filename); |
| 843 |
|
} |
| 844 |
|
|
| 845 |
|
return ret; |
| 846 |
|
} |
| 847 |
|
|
| 848 |
|
int show_top(const char *str_left, const char *str_middle, const char *str_right) |
| 849 |
|
{ |
| 850 |
|
char str_left_f[STR_TOP_LEFT_MAX_LEN + 1]; |
| 851 |
|
char str_middle_f[STR_TOP_MIDDLE_MAX_LEN + 1]; |
| 852 |
|
char str_right_f[STR_TOP_RIGHT_MAX_LEN + 1]; |
| 853 |
|
int str_left_len; |
| 854 |
|
int str_middle_len; |
| 855 |
|
int str_right_len; |
| 856 |
|
int eol; |
| 857 |
|
int len; |
| 858 |
|
|
| 859 |
|
strncpy(str_left_f, str_left, sizeof(str_left_f) - 1); |
| 860 |
|
str_left_f[sizeof(str_left_f) - 1] = '\0'; |
| 861 |
|
len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN / 2, &eol, &str_left_len, 1); |
| 862 |
|
str_left_f[len] = '\0'; |
| 863 |
|
|
| 864 |
|
strncpy(str_middle_f, str_middle, sizeof(str_middle_f) - 1); |
| 865 |
|
str_middle_f[sizeof(str_middle_f) - 1] = '\0'; |
| 866 |
|
len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN / 2, &eol, &str_middle_len, 1); |
| 867 |
|
str_middle_f[len] = '\0'; |
| 868 |
|
|
| 869 |
|
strncpy(str_right_f, str_right, sizeof(str_right_f) - 1); |
| 870 |
|
str_right_f[sizeof(str_right_f) - 1] = '\0'; |
| 871 |
|
len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN / 2, &eol, &str_right_len, 1); |
| 872 |
|
str_right_f[len] = '\0'; |
| 873 |
|
|
| 874 |
|
moveto(1, 0); |
| 875 |
|
clrtoeol(); |
| 876 |
|
prints("\033[1;44;33m%s\033[37m%*s%s\033[33m%*s%s\033[m", |
| 877 |
|
str_left_f, 44 - str_left_len - str_middle_len, "", |
| 878 |
|
str_middle_f, 36 - str_right_len, "", str_right_f); |
| 879 |
|
|
| 880 |
|
return 0; |
| 881 |
|
} |
| 882 |
|
|
| 883 |
|
int show_bottom(const char *msg) |
| 884 |
|
{ |
| 885 |
|
char str_time[LINE_BUFFER_LEN]; |
| 886 |
|
int len_str_time; |
| 887 |
|
time_t time_online; |
| 888 |
|
struct tm *tm_online; |
| 889 |
|
char msg_f[LINE_BUFFER_LEN]; |
| 890 |
|
int eol; |
| 891 |
|
int len_msg; |
| 892 |
|
int len; |
| 893 |
|
int len_username; |
| 894 |
|
char str_tm_online[LINE_BUFFER_LEN]; |
| 895 |
|
|
| 896 |
|
len_str_time = (int)get_time_str(str_time, sizeof(str_time)); |
| 897 |
|
|
| 898 |
|
msg_f[0] = '\0'; |
| 899 |
|
len_msg = 0; |
| 900 |
|
if (msg != NULL) |
| 901 |
|
{ |
| 902 |
|
strncpy(msg_f, msg, sizeof(msg_f) - 1); |
| 903 |
|
msg_f[sizeof(msg_f) - 1] = '\0'; |
| 904 |
|
len = split_line(msg_f, 23, &eol, &len_msg, 1); |
| 905 |
|
msg_f[len] = '\0'; |
| 906 |
|
} |
| 907 |
|
|
| 908 |
|
len_username = (int)strnlen(BBS_username, sizeof(BBS_username)); |
| 909 |
|
|
| 910 |
|
time_online = time(NULL) - BBS_login_tm; |
| 911 |
|
tm_online = gmtime(&time_online); |
| 912 |
|
if (tm_online->tm_mday > 1) |
| 913 |
|
{ |
| 914 |
|
snprintf(str_tm_online, sizeof(str_tm_online), |
| 915 |
|
"\033[36m%d\033[33md \033[36m%d\033[33m:\033[36m%.2d", |
| 916 |
|
tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min); |
| 917 |
|
} |
| 918 |
|
else |
| 919 |
|
{ |
| 920 |
|
snprintf(str_tm_online, sizeof(str_tm_online), |
| 921 |
|
"\033[36m%d\033[33m:\033[36m%.2d", |
| 922 |
|
tm_online->tm_hour, tm_online->tm_min); |
| 923 |
|
} |
| 924 |
|
|
| 925 |
|
moveto(SCREEN_ROWS, 0); |
| 926 |
|
clrtoeol(); |
| 927 |
|
prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m用户[\033[36m%s\033[33m][%s\033[33m]\033[m", |
| 928 |
|
str_time, msg_f, 61 - len_str_time - len_msg - len_username, "", BBS_username, str_tm_online); |
| 929 |
|
|
| 930 |
|
return 0; |
| 931 |
|
} |
| 932 |
|
|
| 933 |
|
int show_active_board() |
| 934 |
|
{ |
| 935 |
|
static int line_current = 0; |
| 936 |
|
static const void *p_shm = NULL; |
| 937 |
|
static size_t data_len; |
| 938 |
|
static long line_total; |
| 939 |
|
static const void *p_data; |
| 940 |
|
static const long *p_line_offsets; |
| 941 |
|
|
| 942 |
|
static time_t t_last_show = 0; |
| 943 |
|
static int line_last = 0; |
| 944 |
|
|
| 945 |
|
char buffer[LINE_BUFFER_LEN]; |
| 946 |
|
long int len; |
| 947 |
|
|
| 948 |
|
if (p_shm == NULL) |
| 949 |
|
{ |
| 950 |
|
if ((p_shm = get_file_shm_readonly(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) |
| 951 |
|
{ |
| 952 |
|
log_error("get_file_shm(%s) error\n", DATA_ACTIVE_BOARD); |
| 953 |
|
return KEY_NULL; |
| 954 |
|
} |
| 955 |
|
} |
| 956 |
|
|
| 957 |
|
if (time(NULL) - t_last_show >= 10) |
| 958 |
|
{ |
| 959 |
|
line_last = line_current; |
| 960 |
|
t_last_show = time(NULL); |
| 961 |
|
} |
| 962 |
|
else |
| 963 |
|
{ |
| 964 |
|
line_current = line_last; |
| 965 |
|
} |
| 966 |
|
|
| 967 |
|
clrline(2, 2 + ACTIVE_BOARD_HEIGHT); |
| 968 |
|
|
| 969 |
|
for (int i = 0; i < ACTIVE_BOARD_HEIGHT; i++) |
| 970 |
|
{ |
| 971 |
|
len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; |
| 972 |
|
if (len >= LINE_BUFFER_LEN) |
| 973 |
|
{ |
| 974 |
|
log_error("buffer overflow: len=%ld(%ld - %ld) line=%ld \n", |
| 975 |
|
len, p_line_offsets[line_current + 1], p_line_offsets[line_current], line_current); |
| 976 |
|
len = LINE_BUFFER_LEN - 1; |
| 977 |
|
} |
| 978 |
|
|
| 979 |
|
memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len); |
| 980 |
|
buffer[len] = '\0'; |
| 981 |
|
|
| 982 |
|
moveto(3 + i, 0); |
| 983 |
|
prints("%s", buffer); |
| 984 |
|
|
| 985 |
|
line_current++; |
| 986 |
|
if (line_current >= line_total) |
| 987 |
|
{ |
| 988 |
|
line_current = 0; |
| 989 |
|
break; |
| 990 |
|
} |
| 991 |
|
} |
| 992 |
|
|
| 993 |
return -1; |
return 0; |
| 994 |
} |
} |
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