cae4ae2c71
It handles exit() properly, calling the handler also when the plugin returns normally (also make exit() more standard compliant while at it). It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore. To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it. In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit(). In future plugin_crt0.c could also handle clearing bss, initializing iram and more. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
110 lines
3.5 KiB
C
110 lines
3.5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 Bryan Childs
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* Copyright (c) 2007 Alexander Levin
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "shortcuts.h"
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bool append_entry_to_file(sc_file_t *file, char *path, bool is_dir)
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{
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sc_entry_t entry;
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unsigned int required_len = rb->strlen(path);
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if (is_dir) {
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required_len += PATH_SEPARATOR_LEN; /* Add 1 for the trailing / */
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}
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if (required_len >= sizeof(entry.path)) {
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/* no attempt to print it: it will also be so too long for the splash */
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rb->splash(HZ*2, "Can't append shortcut, it's too long");
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return false;
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}
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entry.explicit_disp = false;
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rb->strcpy(entry.path, path);
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if (is_dir) {
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rb->strcat(entry.path, PATH_SEPARATOR);
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}
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if (!append_entry(file, &entry)) {
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rb->splash(HZ*2, "Too many entries!");
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return false;
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}
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return true;
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}
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enum plugin_status plugin_start(const void* void_parameter)
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{
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bool found;
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bool its_a_dir;
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/* This is a viewer, so a parameter must have been specified */
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if (void_parameter == NULL) {
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rb->splash(HZ*2, "No parameter specified!");
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return PLUGIN_ERROR;
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}
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char *parameter = (char*)void_parameter;
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DEBUGF("Trying to append '%s' to the default link file '%s'...\n",
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parameter, SHORTCUTS_FILENAME);
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allocate_memory(&memory_buf, &memory_bufsize);
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/* Determine if it's a file or a directory. First check
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* if it's a dir and then file (not vice versa) since
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* open() can also open a dir */
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found = true;
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if (rb->dir_exists(parameter)) {
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its_a_dir = true;
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} else if (rb->file_exists(parameter)) {
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its_a_dir = false;
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} else {
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found = false;
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}
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/* now we know if it's a file or a directory
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* (or something went wrong) */
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if (!found) {
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/* Something's gone properly pear shaped -
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* we couldn't even find the entry */
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rb->splashf(HZ*2, "File/Dir not found: %s", parameter);
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return PLUGIN_ERROR;
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}
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DEBUGF("'%s' is a %s\n", parameter, (its_a_dir ? "dir" : "file"));
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if (!load_sc_file(&sc_file, SHORTCUTS_FILENAME, false,
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memory_buf, memory_bufsize)) {
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DEBUGF("Couldn't load '%s'\n", SHORTCUTS_FILENAME);
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return PLUGIN_ERROR;
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}
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if (!append_entry_to_file(&sc_file, parameter, its_a_dir)) {
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DEBUGF("Couldn't append entry (too many entries?)\n");
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return PLUGIN_ERROR;
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}
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if (!dump_sc_file(&sc_file, SHORTCUTS_FILENAME)) {
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DEBUGF("Couldn't write shortcuts to '%s'\n", SHORTCUTS_FILENAME);
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return PLUGIN_ERROR;
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}
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return PLUGIN_OK;
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}
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