--- lbbs/src/screen.c 2025/05/16 14:09:31 1.54 +++ lbbs/src/screen.c 2025/05/17 12:28:47 1.60 @@ -30,7 +30,7 @@ #include #include #include -#include +#include #define ACTIVE_BOARD_HEIGHT 8 @@ -232,26 +232,26 @@ int display_file_ex(const char *filename int ch = KEY_NULL; int input_ok, line, max_lines; long int line_current = 0; - const FILE_MMAP *p_file_mmap; + const void *p_file_shm; + const void *p_data; + size_t data_len; + long line_total; + const long *p_line_offsets; long int len; long int percentile; int loop; - if ((p_file_mmap = get_file_mmap(filename)) == NULL) + if ((p_file_shm = get_file_shm(filename)) == NULL) { - if (load_file_mmap(filename) < 0) - { - log_error("load_file_mmap(%s) error\n", filename); - return KEY_NULL; - } - - if ((p_file_mmap = get_file_mmap(filename)) == NULL) - { - log_error("get_file_mmap(%s) error\n", filename); - return KEY_NULL; - } + log_error("get_file_shm(%s) error\n", filename); + return KEY_NULL; } + data_len = *((size_t *)p_file_shm); + line_total = *((long *)(p_file_shm + sizeof(size_t))); + p_data = p_file_shm + sizeof(data_len) + sizeof(line_total); + p_line_offsets = p_data + data_len + 1; + clrline(begin_line, SCREEN_ROWS); line = begin_line; max_lines = SCREEN_ROWS - 1; @@ -259,7 +259,7 @@ int display_file_ex(const char *filename loop = 1; while (!SYS_server_exit && loop) { - if (line_current >= p_file_mmap->line_total && p_file_mmap->line_total <= SCREEN_ROWS - 2) + if (line_current >= line_total && line_total <= SCREEN_ROWS - 2) { if (wait) { @@ -274,11 +274,11 @@ int display_file_ex(const char *filename break; } - if (line_current >= p_file_mmap->line_total || line >= max_lines) + if (line_current >= line_total || line >= max_lines) { - if (line_current - (line - 1) + (SCREEN_ROWS - 2) < p_file_mmap->line_total) + if (line_current - (line - 1) + (SCREEN_ROWS - 2) < line_total) { - percentile = (line_current - (line - 1) + (SCREEN_ROWS - 2)) * 100 / p_file_mmap->line_total; + percentile = (line_current - (line - 1) + (SCREEN_ROWS - 2)) * 100 / line_total; } else { @@ -298,7 +298,7 @@ int display_file_ex(const char *filename input_ok = 1; switch (ch) { - case KEY_NULL: + // case KEY_NULL: case KEY_TIMEOUT: goto cleanup; case KEY_HOME: @@ -308,7 +308,7 @@ int display_file_ex(const char *filename clrline(begin_line, SCREEN_ROWS); break; case KEY_END: - line_current = p_file_mmap->line_total - (SCREEN_ROWS - 2); + line_current = line_total - (SCREEN_ROWS - 2); line = begin_line; max_lines = SCREEN_ROWS - 1; clrline(begin_line, SCREEN_ROWS); @@ -327,7 +327,7 @@ int display_file_ex(const char *filename case CR: igetch_reset(); case KEY_DOWN: - if (line_current + ((SCREEN_ROWS - 2) - (line - 1)) >= p_file_mmap->line_total) // Reach bottom + if (line_current + ((SCREEN_ROWS - 2) - (line - 1)) >= line_total) // Reach bottom { break; } @@ -357,14 +357,14 @@ int display_file_ex(const char *filename case KEY_PGDN: case Ctrl('F'): case KEY_SPACE: - if (line_current + (SCREEN_ROWS - 2) - (line - 1) >= p_file_mmap->line_total) // Reach bottom + if (line_current + (SCREEN_ROWS - 2) - (line - 1) >= line_total) // Reach bottom { break; } line_current += (SCREEN_ROWS - 3) - (line - 1); - if (line_current + SCREEN_ROWS - 2 > p_file_mmap->line_total) // No enough lines to display + if (line_current + SCREEN_ROWS - 2 > line_total) // No enough lines to display { - line_current = p_file_mmap->line_total - (SCREEN_ROWS - 2); + line_current = line_total - (SCREEN_ROWS - 2); } line = begin_line; max_lines = SCREEN_ROWS - 1; @@ -395,7 +395,6 @@ int display_file_ex(const char *filename clrline(begin_line, SCREEN_ROWS); break; default: - log_std("Input: %d\n", ch); input_ok = 0; break; } @@ -406,14 +405,14 @@ int display_file_ex(const char *filename continue; } - len = p_file_mmap->line_offsets[line_current + 1] - p_file_mmap->line_offsets[line_current]; + len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; if (len >= LINE_BUFFER_LEN) { log_error("Error length exceeds buffer size: %d\n", len); len = LINE_BUFFER_LEN - 1; } - memcpy(buffer, (const char *)p_file_mmap->p_data + p_file_mmap->line_offsets[line_current], (size_t)len); + memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len); buffer[len] = '\0'; moveto(line, 0); @@ -424,60 +423,81 @@ int display_file_ex(const char *filename } cleanup: + if (shmdt(p_file_shm) == -1) + { + log_error("shmdt() error (%d)\n", errno); + } + return ch; } -int show_top(char *status) +int show_top(const char *status) { - int end_of_line; - int display_len; + char status_f[21]; + int truncate; + int status_len; + int section_name_len; int len; - char space1[LINE_BUFFER_LEN]; - char space2[LINE_BUFFER_LEN]; + strncpy(status_f, status, sizeof(status_f) - 1); + status_f[sizeof(status_f) - 1] = '\0'; - len = split_line(status, 20, &end_of_line, &display_len); - if (end_of_line) + len = split_line(status_f, 20, &truncate, &status_len); + if (truncate) { - status[len] = '\0'; + log_error("Status string is truncated\n"); + status_f[len] = '\0'; } - str_space(space1, 31 - display_len); - len = split_line(BBS_current_section_name, 20, &end_of_line, &display_len); - if (end_of_line) + len = split_line(BBS_current_section_name, 20, &truncate, §ion_name_len); + if (truncate) { - status[len] = '\0'; + log_error("Section name is truncated\n"); } - str_space(space2, 30 - display_len); moveto(1, 0); clrtoeol(); - prints("\033[1;44;33m%s \033[37m%s%s%s\033[33m ÌÖÂÛÇø [%s]\033[m", - status, space1, BBS_name, space2, BBS_current_section_name); + prints("\033[1;44;33m%s\033[37m%*s%*s\033[33m ÌÖÂÛÇø [%s]\033[m", + status_f, 32, BBS_name, 26, "", BBS_current_section_name); iflush(); return 0; } -int show_bottom(char *msg) +int show_bottom(const char *msg) { char str_time[LINE_BUFFER_LEN]; - char space[LINE_BUFFER_LEN]; time_t time_online; struct tm *tm_online; + char msg_f[21]; + int truncate; + int msg_len; + int len; + int len_username; get_time_str(str_time, sizeof(str_time)); - str_space(space, 34 - (int)strnlen(BBS_username, sizeof(BBS_username))); + + strncpy(msg_f, msg, sizeof(msg_f) - 1); + msg_f[sizeof(msg_f) - 1] = '\0'; + + len = split_line(msg_f, 20, &truncate, &msg_len); + if (truncate) + { + log_error("Status string is truncated\n"); + msg_f[len] = '\0'; + } + + len_username = (int)strnlen(BBS_username, sizeof(BBS_username)); time_online = time(0) - BBS_login_tm; tm_online = gmtime(&time_online); moveto(SCREEN_ROWS, 0); clrtoeol(); - prints("\033[1;44;33m[\033[36m%s\033[33m]%sÕʺÅ[\033[36m%s\033[33m]" + prints("\033[1;44;33m[\033[36m%s\033[33m]%*s%*sÕʺÅ[\033[36m%s\033[33m]" "[\033[36m%1d\033[33m:\033[36m%2d\033[33m:\033[36m%2d\033[33m]\033[m", - str_time, space, BBS_username, tm_online->tm_mday - 1, - tm_online->tm_hour, tm_online->tm_min); + str_time, 21, msg_f, 13 - len_username, "", BBS_username, + tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min); iflush(); return 0; @@ -485,48 +505,55 @@ int show_bottom(char *msg) int show_active_board() { - char filename[FILE_PATH_LEN]; - char buffer[LINE_BUFFER_LEN]; - FILE *fin; - static int line; - int len; - int end_of_line; - int display_len; + static int line_current = 0; + static const void *p_file_shm = NULL; + static const void *p_data; + static size_t data_len; + static long line_total; + static const long *p_line_offsets; - clrline(3, 2 + ACTIVE_BOARD_HEIGHT); - - if ((fin = fopen(DATA_ACTIVE_BOARD, "r")) == NULL) - { - log_error("Unable to open file %s\n", filename); - return -1; - } + char buffer[LINE_BUFFER_LEN]; + long int len; - for (int i = 0; i < line; i++) + if (p_file_shm == NULL) { - if (fgets(buffer, sizeof(buffer), fin) == NULL) + if ((p_file_shm = get_file_shm(DATA_ACTIVE_BOARD)) == NULL) { - line = 0; - rewind(fin); - break; + log_error("get_file_shm(%s) error\n", DATA_ACTIVE_BOARD); + return KEY_NULL; } + + data_len = *((size_t *)p_file_shm); + line_total = *((long *)(p_file_shm + sizeof(size_t))); + p_data = p_file_shm + sizeof(data_len) + sizeof(line_total); + p_line_offsets = p_data + data_len + 1; } + clrline(3, 2 + ACTIVE_BOARD_HEIGHT); + for (int i = 0; i < ACTIVE_BOARD_HEIGHT; i++) { - if (fgets(buffer, sizeof(buffer), fin) == NULL) + len = p_line_offsets[line_current + 1] - p_line_offsets[line_current]; + if (len >= LINE_BUFFER_LEN) { - line = 0; - break; + log_error("Error length exceeds buffer size: %d\n", len); + len = LINE_BUFFER_LEN - 1; } - line++; - len = split_line(buffer, SCREEN_COLS, &end_of_line, &display_len); - buffer[len] = '\0'; // Truncate over-length line + + memcpy(buffer, (const char *)p_data + p_line_offsets[line_current], (size_t)len); + buffer[len] = '\0'; + moveto(3 + i, 0); prints("%s", buffer); + + line_current++; + if (line_current >= line_total) + { + line_current = 0; + break; + } } iflush(); - fclose(fin); - return 0; }