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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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menu.c - description |
/* |
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------------------- |
* menu |
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Copyright : (C) 2004-2025 by Leaflet |
* - configurable user interactive menu feature |
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Email : leaflet@leafok.com |
* |
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***************************************************************************/ |
* 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 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" |
#include "bbs.h" |
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#include "bbs_cmd.h" |
#include "bbs_cmd.h" |
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#include "user_priv.h" |
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#include "bbs_cmd.h" |
#include "bbs_cmd.h" |
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#include "menu.h" |
#include "common.h" |
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#include "log.h" |
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#include "io.h" |
#include "io.h" |
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#include "log.h" |
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#include "menu.h" |
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#include "screen.h" |
#include "screen.h" |
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#include "common.h" |
#include "user_priv.h" |
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#include <string.h> |
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#include <stdio.h> |
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#include <ctype.h> |
#include <ctype.h> |
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#include <stdlib.h> |
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#include <errno.h> |
#include <errno.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
#include <unistd.h> |
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#include <sys/shm.h> |
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#include <sys/ipc.h> |
#include <sys/ipc.h> |
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#include <sys/shm.h> |
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#define MENU_SCREEN_PATH_PREFIX "var/MENU_SCR_" |
enum _menu_constant_t |
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#define MENU_CONF_DELIM_WITH_SPACE " ,\t\r\n" |
{ |
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#define MENU_CONF_DELIM_WITHOUT_SPACE "\r\n" |
MENU_SET_RESERVED_LENGTH = sizeof(int16_t) * 4, |
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MENU_SHMGET_RETRY_LIMIT = 10, |
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}; |
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#define MENU_SET_RESERVED_LENGTH (sizeof(int16_t) * 4) |
static const char MENU_CONF_DELIM_WITH_SPACE[] = " ,\t\r\n"; |
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static const char MENU_CONF_DELIM_WITHOUT_SPACE[] = "\r\n"; |
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MENU_SET *p_bbs_menu; |
MENU_SET bbs_menu; |
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MENU_SET top10_menu; |
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int load_menu(MENU_SET *p_menu_set, const char *conf_file) |
int load_menu(MENU_SET *p_menu_set, const char *conf_file) |
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{ |
{ |
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int proj_id; |
int proj_id; |
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key_t key; |
key_t key; |
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size_t size; |
size_t size; |
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int retry_cnt; |
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// Initialize the data structure |
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memset(p_menu_set, 0, sizeof(*p_menu_set)); |
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// Use trie_dict to search menu_id by menu name |
// Use trie_dict to search menu_id by menu name |
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p_menu_set->p_menu_name_dict = trie_dict_create(); |
p_menu_set->p_menu_name_dict = trie_dict_create(); |
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if ((fin = fopen(conf_file, "r")) == NULL) |
if ((fin = fopen(conf_file, "r")) == NULL) |
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{ |
{ |
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log_error("Open %s failed", conf_file); |
log_error("Open %s failed\n", conf_file); |
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return -2; |
return -2; |
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} |
} |
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// Allocate shared memory |
// Allocate shared memory |
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proj_id = (int)(time(NULL) % getpid()); |
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key = ftok(conf_file, proj_id); |
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if (key == -1) |
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{ |
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log_error("ftok(%s %d) error (%d)\n", conf_file, proj_id, errno); |
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return -2; |
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} |
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size = MENU_SET_RESERVED_LENGTH + |
size = MENU_SET_RESERVED_LENGTH + |
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sizeof(MENU) * MAX_MENUS + |
sizeof(MENU) * MAX_MENUS + |
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sizeof(MENU_ITEM) * MAX_MENUITEMS + |
sizeof(MENU_ITEM) * MAX_MENUITEMS + |
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sizeof(MENU_SCREEN) * MAX_MENUS + |
sizeof(MENU_SCREEN) * MAX_MENUS + |
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MAX_MENU_SCR_BUF_LENGTH * MAX_MENUS; |
MAX_MENU_SCR_BUF_LENGTH * MAX_MENUS; |
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p_menu_set->shmid = shmget(key, size, IPC_CREAT | IPC_EXCL | 0600); |
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if (p_menu_set->shmid == -1) |
proj_id = (int)(time(NULL) % getpid()); |
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retry_cnt = 0; |
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do |
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{ |
{ |
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log_error("shmget(size = %d) error (%d)\n", size, errno); |
key = ftok(conf_file, proj_id + retry_cnt); |
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return -3; |
if (key == -1) |
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} |
{ |
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log_error("ftok(%s %d) error (%d)\n", conf_file, proj_id + retry_cnt, errno); |
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return -3; |
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} |
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p_menu_set->shmid = shmget(key, size, IPC_CREAT | IPC_EXCL | 0600); |
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if (p_menu_set->shmid == -1) |
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{ |
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if (errno != EEXIST || retry_cnt + 1 >= MENU_SHMGET_RETRY_LIMIT) |
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{ |
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log_error("shmget(conf_file=%s, size=%d) error (%d) %d times\n", |
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conf_file, size, errno, retry_cnt + 1); |
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return -3; |
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} |
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log_error("shmget(conf_file=%s, proj_id=%d, key=0x%x, size=%d) error (%d), retry ...\n", |
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conf_file, proj_id + retry_cnt, key, size, errno); |
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retry_cnt++; |
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} |
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} while (p_menu_set->shmid == -1); |
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p_menu_set->p_reserved = shmat(p_menu_set->shmid, NULL, 0); |
p_menu_set->p_reserved = shmat(p_menu_set->shmid, NULL, 0); |
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if (p_menu_set->p_reserved == (void *)-1) |
if (p_menu_set->p_reserved == (void *)-1) |
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{ |
{ |
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log_error("shmat() error (%d)\n", errno); |
log_error("shmat() error (%d)\n", errno); |
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return -3; |
return -3; |
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} |
} |
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p_menu_set->p_menu_pool = p_menu_set->p_reserved + MENU_SET_RESERVED_LENGTH; |
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p_menu_set->p_menu_item_pool = p_menu_set->p_menu_pool + sizeof(MENU) * MAX_MENUS; |
p_menu_set->p_menu_pool = (char *)(p_menu_set->p_reserved) + MENU_SET_RESERVED_LENGTH; |
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p_menu_set->p_menu_screen_pool = p_menu_set->p_menu_item_pool + sizeof(MENU_ITEM) * MAX_MENUITEMS; |
p_menu_set->p_menu_item_pool = (char *)(p_menu_set->p_menu_pool) + sizeof(MENU) * MAX_MENUS; |
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p_menu_set->p_menu_screen_buf = p_menu_set->p_menu_screen_pool + sizeof(MENU_SCREEN) * MAX_MENUS; |
p_menu_set->p_menu_screen_pool = (char *)(p_menu_set->p_menu_item_pool) + sizeof(MENU_ITEM) * MAX_MENUITEMS; |
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p_menu_set->p_menu_screen_buf = (char *)(p_menu_set->p_menu_screen_pool) + sizeof(MENU_SCREEN) * MAX_MENUS; |
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p_menu_set->p_menu_screen_buf_free = p_menu_set->p_menu_screen_buf; |
p_menu_set->p_menu_screen_buf_free = p_menu_set->p_menu_screen_buf; |
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p_menu_set->menu_count = 0; |
p_menu_set->menu_count = 0; |
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p_menu_set->menu_screen_count = 0; |
p_menu_set->menu_screen_count = 0; |
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p_menu_set->choose_step = 0; |
p_menu_set->choose_step = 0; |
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p_menu_set->menu_id_path[0] = 0; |
p_menu_set->menu_id_path[0] = 0; |
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p_menu_set->menu_item_pos[0] = 0; |
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p_menu_set->allow_exit = 0; |
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while (fgets(buffer, sizeof(buffer), fin)) |
while (fgets(buffer, sizeof(buffer), fin)) |
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{ |
{ |
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p_menu_set->choose_step--; |
p_menu_set->choose_step--; |
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return REDRAW; |
return REDRAW; |
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} |
} |
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return EXITBBS; |
return EXITMENU; |
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} |
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if (p_menu->item_count <= 0) // empty menu |
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{ |
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moveto(p_menu->screen_row, p_menu->screen_col); |
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clrtoeol(); |
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prints("没有可选项"); |
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press_any_key(); |
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return -1; |
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} |
} |
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menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step]; |
menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step]; |
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if (p_menu_item == NULL) |
if (p_menu_item == NULL) |
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{ |
{ |
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log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id); |
log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id); |
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menu_item_pos = 0; |
return EXITMENU; |
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} |
} |
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if (menu_item_pos > 0 && |
if (menu_item_pos > 0 && |
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if (!menu_selectable) |
if (!menu_selectable) |
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{ |
{ |
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moveto(p_menu->screen_row, p_menu->screen_col); |
moveto(p_menu->screen_row, p_menu->screen_col); |
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prints("ûпѡ"); |
clrtoeol(); |
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prints("没有可选项"); |
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press_any_key(); |
press_any_key(); |
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return -1; |
return -1; |
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} |
} |
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if (p_menu->item_count == 0) |
if (p_menu->item_count == 0) |
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{ |
{ |
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#ifdef _DEBUG |
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log_error("Empty menu (%s)\n", p_menu->name); |
log_error("Empty menu (%s)\n", p_menu->name); |
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#endif |
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if (p_menu_set->choose_step > 0) |
if (p_menu_set->choose_step > 0) |
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{ |
{ |
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p_menu_set->choose_step--; |
p_menu_set->choose_step--; |
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switch (key) |
switch (key) |
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{ |
{ |
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case CR: |
case CR: |
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igetch_reset(); |
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case KEY_RIGHT: |
case KEY_RIGHT: |
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if (p_menu_item->submenu) |
if (p_menu_item->submenu) |
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{ |
{ |
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if (p_menu_set->choose_step > 0) |
if (p_menu_set->choose_step > 0) |
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{ |
{ |
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p_menu_set->choose_step--; |
p_menu_set->choose_step--; |
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if (p_menu_set->choose_step == 0) |
return REDRAW; |
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{ |
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return REDRAW; |
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} |
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if (display_menu(p_menu_set) != 0) |
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{ |
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return menu_control(p_menu_set, KEY_LEFT); |
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} |
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} |
} |
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else |
else |
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{ |
{ |
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if (p_menu_set->allow_exit) |
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{ |
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return EXITMENU; |
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} |
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display_menu_cursor(p_menu_set, 0); |
display_menu_cursor(p_menu_set, 0); |
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menu_item_pos = p_menu->item_count - 1; |
menu_item_pos = p_menu->item_count - 1; |
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while (menu_item_pos >= 0) |
while (menu_item_pos >= 0) |
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detach_menu_shm(p_menu_set); |
detach_menu_shm(p_menu_set); |
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if (shmctl(shmid, IPC_RMID, NULL) == -1) |
if (shmid != 0 && shmctl(shmid, IPC_RMID, NULL) == -1) |
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{ |
{ |
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log_error("shmctl(shmid=%d, IPC_RMID) error (%d)\n", shmid, errno); |
log_error("shmctl(shmid=%d, IPC_RMID) error (%d)\n", shmid, errno); |
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return -1; |
return -1; |
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return 0; |
return 0; |
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} |
} |
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int get_menu_shm_readonly(MENU_SET *p_menu_set) |
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{ |
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void *p_shm; |
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p_shm = shmat(p_menu_set->shmid, NULL, SHM_RDONLY); |
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if (p_shm == (void *)-1) |
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{ |
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log_error("shmat(menu_shm shmid = %d) error (%d)\n", p_menu_set->shmid, errno); |
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return -1; |
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} |
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p_menu_set->p_reserved = p_shm; |
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p_menu_set->p_menu_pool = (char *)(p_menu_set->p_reserved) + MENU_SET_RESERVED_LENGTH; |
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p_menu_set->p_menu_item_pool = (char *)(p_menu_set->p_menu_pool) + sizeof(MENU) * MAX_MENUS; |
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p_menu_set->p_menu_screen_pool = (char *)(p_menu_set->p_menu_item_pool) + sizeof(MENU_ITEM) * MAX_MENUITEMS; |
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p_menu_set->p_menu_screen_buf = (char *)(p_menu_set->p_menu_screen_pool) + sizeof(MENU_SCREEN) * MAX_MENUS; |
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p_menu_set->p_menu_screen_buf_free = p_menu_set->p_menu_screen_buf; |
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p_menu_set->choose_step = 0; |
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p_menu_set->menu_id_path[0] = 0; |
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p_menu_set->menu_item_pos[0] = 0; |
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return 0; |
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} |
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int set_menu_shm_readonly(MENU_SET *p_menu_set) |
int set_menu_shm_readonly(MENU_SET *p_menu_set) |
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{ |
{ |