X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=gui.c;h=fa1538b0d63f3db2ca8be6497aa0ce797d3a89a1;hp=982f68844b9311b464b4820b158ea7e5adec1fc1;hb=60ef885705932a682097ad2b9f2379282d814e79;hpb=6bdac07456cb5872f824028912d1049883a9c21f diff --git a/gui.c b/gui.c index 982f6884..fa1538b0 100644 --- a/gui.c +++ b/gui.c @@ -1,19 +1,21 @@ /* - * Copyright (C) 1998-2009 Andre Noll + * Copyright (C) 1998-2010 Andre Noll * * Licensed under the GPL v2. For licencing details see COPYING. */ /** \file gui.c Curses-based interface for paraslash. */ +#include #include #include #include +#include + #include "gui.cmdline.h" #include "para.h" #include "gui.h" #include "string.h" -#include #include "ringbuffer.h" #include "fd.h" #include "error.h" @@ -43,7 +45,7 @@ struct rb_entry { size_t len; int color; }; -struct ringbuffer *bot_win_rb; +static struct ringbuffer *bot_win_rb; #define NUM_LINES(len) (1 + (len) / bot.cols) static unsigned scroll_position; @@ -52,7 +54,7 @@ static int cmd_died, curses_active; static pid_t cmd_pid; static int command_pipe = -1; -static int audiod_pipe = -1; +static int stat_pipe = -1; static struct gui_args_info conf; enum {GETCH_MODE, COMMAND_MODE, EXTERNAL_MODE}; @@ -89,8 +91,8 @@ struct stat_item { static struct gui_theme theme; -int _argc; -char **_argv; +static int _argc; +static char **_argv; static void com_help(void); static void com_reread_conf(void); @@ -108,7 +110,7 @@ static void com_scroll_down(void); static void com_page_up(void); static void com_page_down(void); -struct gui_command command_list[] = { +static struct gui_command command_list[] = { { .key = "?", .name = "help", @@ -189,38 +191,6 @@ struct gui_command command_list[] = { } }; -static int para_open_audiod_pipe(char *cmd) -{ - int fds[3] = {0, 1, 0}; - pid_t pid; - int ret = para_exec_cmdline_pid(&pid, cmd, fds); - if (ret < 0) - return ret; - ret = mark_fd_nonblocking(fds[1]); - if (ret > 0) - return fds[1]; - close(fds[1]); - return ret; -} - -static int read_audiod_pipe(int fd, line_handler_t *line_handler) -{ - static char buf[4096]; - const ssize_t bufsize = sizeof(buf) - 1; - static ssize_t loaded; - ssize_t ret; - - if (loaded >= bufsize) - loaded = 0; - ret = read(fd, buf + loaded, bufsize - loaded); - if (ret > 0) { - loaded += ret; - buf[loaded] = '\0'; - loaded = for_each_line(buf, loaded, line_handler, NULL); - } - return ret; -} - static int find_cmd_byname(char *name) { int i; @@ -312,20 +282,23 @@ static void add_spaces(WINDOW* win, unsigned int num) * print aligned string to curses window. This function always prints * exactly len chars. */ -static int align_str(WINDOW* win, const char *string, unsigned int len, +static int align_str(WINDOW* win, char *str, unsigned int len, unsigned int align) { - int num; /* of spaces */ - char *str; + int i, num; /* of spaces */ - if (!win || !string) + if (!win || !str) return -1; - num = len - strlen(string); - str = para_strdup(string); + num = len - strlen(str); if (num < 0) { str[len] = '\0'; num = 0; } + /* replace newlines by spaces */ + for (i = 0; i < len && str[i]; i++) { + if (str[i] == '\n') + str[i] = ' '; + } if (align == LEFT) { waddstr(win, str); add_spaces(win, num); @@ -337,7 +310,6 @@ static int align_str(WINDOW* win, const char *string, unsigned int len, waddstr(win, str[0]? str: ""); add_spaces(win, num - num / 2); } - free(str); return 1; } @@ -360,10 +332,14 @@ __printf_2_3 static void print_in_bar(int color, const char *fmt,...) */ static void print_status_bar(void) { + char *tmp; + if (!curses_active) return; + tmp = para_strdup(STANDARD_STATUS_BAR); wmove(sb.win, 0, 0); - align_str(sb.win, STANDARD_STATUS_BAR, sb.cols, CENTER); + align_str(sb.win, tmp, sb.cols, CENTER); + free(tmp); wrefresh(sb.win); } @@ -489,17 +465,19 @@ static int add_output_line(char *line, __a_unused void *data) return 1; } +static int loglevel; + __printf_2_3 void para_log(int ll, const char *fmt,...) { int color; char *msg; - if (ll < conf.loglevel_arg || !curses_active) + if (ll < loglevel || !curses_active) return; switch (ll) { - case DEBUG: - case INFO: - case NOTICE: + case LL_DEBUG: + case LL_INFO: + case LL_NOTICE: color = COLOR_MSG; break; default: @@ -519,13 +497,12 @@ static void setup_signal_handling(void) para_install_sighandler(SIGCHLD); para_install_sighandler(SIGWINCH); para_install_sighandler(SIGUSR1); -// signal(SIGPIPE, SIG_IGN); - signal(SIGHUP, SIG_IGN); + para_sigaction(SIGHUP, SIG_IGN); } __noreturn static void do_exit(int ret) { - signal(SIGTERM, SIG_IGN); + para_sigaction(SIGTERM, SIG_IGN); kill(0, SIGTERM); exit(ret); } @@ -562,8 +539,7 @@ __noreturn __printf_2_3 static void msg_n_exit(int ret, const char* fmt, ...) static void print_welcome(void) { - int ll = conf.loglevel_arg; - if (ll > NOTICE) + if (loglevel > LL_NOTICE) return; outputf(COLOR_WELCOME, "Welcome to para_gui " PACKAGE_VERSION " \"" CODENAME "\". Theme: %s", theme.name); @@ -687,6 +663,70 @@ static void print_stat_item(int i) wrefresh(top.win); } +static int update_item(int item_num, char *buf) +{ + char **c = stat_content + item_num; + + free(*c); + if (buf && buf[0]) + goto dup; + switch (item_num) { + case SI_ARTIST: + *c = para_strdup("(artist tag not set)"); + goto print; + case SI_TITLE: + *c = para_strdup("(title tag not set)"); + goto print; + case SI_YEAR: + *c = para_strdup("????"); + goto print; + case SI_ALBUM: + *c = para_strdup("(album tag not set)"); + goto print; + case SI_COMMENT: + *c = para_strdup("(comment tag not set)"); + goto print; + } +dup: + *c = para_strdup(buf); +print: + print_stat_item(item_num); + return 1; +} + +static int read_stat_pipe(fd_set *rfds) +{ + static char *buf; + static int bufsize, loaded; + int ret, ret2; + size_t sz; + + if (stat_pipe < 0) + return 0; + if (loaded >= bufsize) { + if (bufsize > 1000 * 1000) { + loaded = 0; + return 0; + } + bufsize += bufsize + 1000; + buf = para_realloc(buf, bufsize); + } + assert(loaded < bufsize); + ret = read_nonblock(stat_pipe, buf + loaded, bufsize - loaded, + rfds, &sz); + loaded += sz; + ret2 = for_each_stat_item(buf, loaded, update_item); + if (ret < 0 || ret2 < 0) { + loaded = 0; + return ret2 < 0? ret2 : ret; + } + sz = ret2; /* what is left */ + if (sz > 0 && sz < loaded) + memmove(buf, buf + loaded - sz, sz); + loaded = sz; + return 1; +} + static void print_all_items(void) { int i; @@ -769,26 +809,6 @@ reap_next_child: goto reap_next_child; } -/* - * print status line if line starts with known command. - */ -static int check_stat_line(char *line, __a_unused void *data) -{ - int i; - -// PARA_INFO_LOG("%s: checking: %s\n", __func__, line); - i = stat_line_valid(line); - if (i >= 0) { - line += strlen(status_item_list[i]) + 1; - if (*line == ' ') - line++; - free(stat_content[i]); - stat_content[i] = para_strdup(line); - print_stat_item(i); - } - return 1; -} - /* * This sucker modifies its first argument. *handler and *arg are * pointers to 0-terminated strings (inside line). Crap. @@ -859,8 +879,8 @@ static void handle_signal(int sig) return; case SIGINT: PARA_WARNING_LOG("caught SIGINT, reset"); - /* Nothing to do. SIGINT killed our child, para_client stat. - * This get noticed by do_select which resets everything + /* Nothing to do. SIGINT killed our child which gets noticed + * by do_select and resets everything. */ return; case SIGUSR1: @@ -873,15 +893,24 @@ static void handle_signal(int sig) } } -static int open_audiod_pipe(void) +static int open_stat_pipe(void) { static int init = 1; + int ret, fds[3] = {0, 1, 0}; + pid_t pid; if (init) init = 0; else sleep(1); - return para_open_audiod_pipe(conf.stat_cmd_arg); + ret = para_exec_cmdline_pid(&pid, conf.stat_cmd_arg, fds); + if (ret < 0) + return ret; + ret = mark_fd_nonblocking(fds[1]); + if (ret >= 0) + return fds[1]; + close(fds[1]); + return ret; } /* @@ -895,14 +924,14 @@ static int open_audiod_pipe(void) * when any key is pressed. * * EXTERNAL_MODE: Check only signal pipe. Used when an external command - * is running. During that thime curses is disabled. Returns when + * is running. During that time curses is disabled. Returns when * cmd_pid == 0. */ static int do_select(int mode) { fd_set rfds; int ret; - int max_fileno, cp_numread = 1; + int max_fileno; char command_buf[4096] = ""; int cbo = 0; /* command buf offset */ struct timeval tv; @@ -912,11 +941,10 @@ repeat: // ret = refresh_status(); FD_ZERO(&rfds); max_fileno = 0; - /* audiod pipe */ - if (audiod_pipe < 0) - audiod_pipe = open_audiod_pipe(); - if (audiod_pipe >= 0) - para_fd_set(audiod_pipe, &rfds, &max_fileno); + if (stat_pipe < 0) + stat_pipe = open_stat_pipe(); + if (stat_pipe >= 0) + para_fd_set(stat_pipe, &rfds, &max_fileno); /* signal pipe */ para_fd_set(signal_pipe, &rfds, &max_fileno); /* command pipe only for COMMAND_MODE */ @@ -926,46 +954,41 @@ repeat: if (ret <= 0) goto check_return; /* skip fd checks */ /* signals */ - if (FD_ISSET(signal_pipe, &rfds)) { - int sig_nr = para_next_signal(); - if (sig_nr > 0) - handle_signal(sig_nr); - } + ret = para_next_signal(&rfds); + if (ret > 0) + handle_signal(ret); /* read command pipe if ready */ - if (command_pipe >= 0 && mode == COMMAND_MODE && - FD_ISSET(command_pipe, &rfds)) { - cp_numread = read(command_pipe, command_buf + cbo, - sizeof(command_buf) - 1 - cbo); - if (cp_numread >= 0) - cbo += cp_numread; - else { - if (cp_numread < 0) - PARA_ERROR_LOG("read error (%d)", cp_numread); + if (command_pipe >= 0 && mode == COMMAND_MODE) { + size_t sz; + ret = read_nonblock(command_pipe, command_buf + cbo, + sizeof(command_buf) - 1 - cbo, &rfds, &sz); + cbo += sz; + sz = cbo; + cbo = for_each_line(command_buf, cbo, &add_output_line, NULL); + if (sz != cbo) + wrefresh(bot.win); + if (ret < 0) { + PARA_NOTICE_LOG("closing command pipe: %s", + para_strerror(-ret)); close(command_pipe); command_pipe = -1; + return 0; } } - if (audiod_pipe >= 0 && FD_ISSET(audiod_pipe, &rfds)) - if (read_audiod_pipe(audiod_pipe, check_stat_line) <= 0) { - close(audiod_pipe); - audiod_pipe = -1; - clear_all_items(); - free(stat_content[SI_BASENAME]); - stat_content[SI_BASENAME] = - para_strdup("audiod not running!?"); - print_all_items(); - } + ret = read_stat_pipe(&rfds); + if (ret < 0) { + PARA_NOTICE_LOG("closing stat pipe: %s\n", para_strerror(-ret)); + close(stat_pipe); + stat_pipe = -1; + clear_all_items(); + free(stat_content[SI_BASENAME]); + stat_content[SI_BASENAME] = + para_strdup("stat command terminated!?"); + print_all_items(); + } check_return: switch (mode) { case COMMAND_MODE: - if (cp_numread <= 0 && !cbo) /* command complete */ - return 0; - if (cbo) - cbo = for_each_line(command_buf, cbo, - &add_output_line, NULL); - if (cp_numread <= 0) - cbo = 0; - wrefresh(bot.win); ret = wgetch(top.win); if (ret != ERR && ret != KEY_RESIZE) { if (command_pipe) { @@ -1091,13 +1114,14 @@ static void com_page_up(void) { unsigned lines; int fvr = first_visible_rbe(&lines); + if (fvr < 0 || fvr + 1 >= ringbuffer_filled(bot_win_rb)) { print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n"); return; } scroll_position = fvr + 1; for (; scroll_position > 0; scroll_position--) { - fvr = first_visible_rbe(&lines); + first_visible_rbe(&lines); if (lines == bot.lines) break; } @@ -1168,24 +1192,24 @@ err_out: static void com_ll_decr(void) { - if (conf.loglevel_arg <= DEBUG) { + if (loglevel <= LL_DEBUG) { print_in_bar(COLOR_ERRMSG, "loglevel already at maximal verbosity\n"); return; } - conf.loglevel_arg--; - print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg); + loglevel--; + print_in_bar(COLOR_MSG, "loglevel set to %d\n", loglevel); } static void com_ll_incr(void) { - if (conf.loglevel_arg >= EMERG) { + if (loglevel >= LL_EMERG) { print_in_bar(COLOR_ERRMSG, - "loglevel already at miminal verbosity\n"); + "loglevel already at minimal verbosity\n"); return; } - conf.loglevel_arg++; - print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg); + loglevel++; + print_in_bar(COLOR_MSG, "loglevel set to %d\n", loglevel); } /* @@ -1320,31 +1344,30 @@ static void handle_command(int c) /* first check user's key bindings */ for (i = 0; i < conf.key_map_given; ++i) { - char tmp[MAXLINE], *handler, *arg; + char *tmp, *handler, *arg; - strcpy(tmp, conf.key_map_arg[i]); - if (!split_key_map(tmp, &handler, &arg)) + tmp = para_strdup(conf.key_map_arg[i]); + if (!split_key_map(tmp, &handler, &arg)) { + free(tmp); return; - if (!strcmp(tmp, km_keyname(c))) { - if (*handler == 'd') { - display_cmd(arg); - return; - } - if (*handler == 'x') { - external_cmd(arg); - return; - } - if (*handler == 'p') { - client_cmd_cmdline(arg); - return; - } - if (*handler == 'i') { - int num = find_cmd_byname(arg); - if (num >= 0) - command_list[num].handler(); - return; - } } + if (strcmp(tmp, km_keyname(c))) { + free(tmp); + continue; + } + if (*handler == 'd') + display_cmd(arg); + else if (*handler == 'x') + external_cmd(arg); + else if (*handler == 'p') + client_cmd_cmdline(arg); + else if (*handler == 'i') { + int num = find_cmd_byname(arg); + if (num >= 0) + command_list[num].handler(); + } + free(tmp); + return; } /* not found, check internal key bindings */ for (i = 0; command_list[i].handler; i++) { @@ -1391,6 +1414,7 @@ int main(int argc, char *argv[]) }; gui_cmdline_parser_config_file(cf, &conf, ¶ms); } + loglevel = get_loglevel_by_name(conf.loglevel_arg); if (check_key_map_args() < 0) { fprintf(stderr, "invalid key map in config file\n"); exit(EXIT_FAILURE);