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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2020 by William Wilgus
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __PCTOOL__
#include "plugin.h"
#include "open_plugin.h"
#include "pathfuncs.h"
#include "splash.h"
#include "lang.h"
#define ROCK_EXT "rock"
#define ROCK_LEN 5
#define OP_EXT "opx"
#define OP_LEN 4
struct open_plugin_entry_t open_plugin_entry = {0};
static const int op_entry_sz = sizeof(struct open_plugin_entry_t);
static int open_plugin_hash_get_entry(uint32_t hash,
struct open_plugin_entry_t *entry,
const char* dat_file);
static inline void op_clear_entry(struct open_plugin_entry_t *entry)
{
if (entry)
{
memset(entry, 0, op_entry_sz);
entry->lang_id = -1;
}
}
static int op_update_dat(struct open_plugin_entry_t *entry, bool clear)
{
int fd, fd1;
uint32_t hash;
if (!entry || entry->hash == 0)
return -1;
hash = entry->hash;
fd = open(OPEN_PLUGIN_DAT ".tmp", O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd < 0)
return -1;
write(fd, entry, op_entry_sz);
fd1 = open(OPEN_PLUGIN_DAT, O_RDONLY);
if (fd1 >= 0)
{
while (read(fd1, &open_plugin_entry, op_entry_sz) == op_entry_sz)
{
if (open_plugin_entry.hash != hash)
write(fd, &open_plugin_entry, op_entry_sz);
}
close(fd1);
remove(OPEN_PLUGIN_DAT);
}
close(fd);
rename(OPEN_PLUGIN_DAT ".tmp", OPEN_PLUGIN_DAT);
if (clear)
op_clear_entry(&open_plugin_entry);
return 0;
}
uint32_t open_plugin_add_path(const char *key, const char *plugin, const char *parameter)
{
int len;
bool is_valid = false;
uint32_t hash;
int32_t lang_id;
char *pos = "\0";
if(!key)
{
op_clear_entry(&open_plugin_entry);
return 0;
}
lang_id = P2ID((unsigned char*)key);
key = P2STR((unsigned char *)key);
open_plugin_get_hash(key, &hash);
if(open_plugin_entry.hash != hash)
{
/* the entry in ram needs saved */
op_update_dat(&open_plugin_entry, true);
}
if (plugin)
{
/* name */
if (path_basename(plugin, (const char **)&pos) == 0)
pos = "\0";
len = strlcpy(open_plugin_entry.name, pos, OPEN_PLUGIN_NAMESZ);
if (len > ROCK_LEN && strcasecmp(&(pos[len-ROCK_LEN]), "." ROCK_EXT) == 0)
{
is_valid = true;
/* path */
strlcpy(open_plugin_entry.path, plugin, OPEN_PLUGIN_BUFSZ);
if(parameter)
strlcpy(open_plugin_entry.param, parameter, OPEN_PLUGIN_BUFSZ);
else
open_plugin_entry.param[0] = '\0';
}
else if (len > OP_LEN && strcasecmp(&(pos[len-OP_LEN]), "." OP_EXT) == 0)
{
is_valid = true;
open_plugin_hash_get_entry(0, &open_plugin_entry, plugin);
}
}
if (!is_valid)
{
if (lang_id != LANG_SHORTCUTS) /* from shortcuts menu */
splashf(HZ / 2, str(LANG_OPEN_PLUGIN_NOT_A_PLUGIN), pos);
op_clear_entry(&open_plugin_entry);
hash = 0;
}
else
{
open_plugin_entry.hash = hash;
open_plugin_entry.lang_id = lang_id;
}
return hash;
}
void open_plugin_browse(const char *key)
{
struct browse_context browse;
char tmp_buf[OPEN_PLUGIN_BUFSZ+1];
open_plugin_get_entry(key, &open_plugin_entry);
if (open_plugin_entry.path[0] == '\0')
strcpy(open_plugin_entry.path, PLUGIN_DIR"/");
browse_context_init(&browse, SHOW_ALL, BROWSE_SELECTONLY, "",
Icon_Plugin, open_plugin_entry.path, NULL);
browse.buf = tmp_buf;
browse.bufsize = OPEN_PLUGIN_BUFSZ;
if (rockbox_browse(&browse) == GO_TO_PREVIOUS)
open_plugin_add_path(key, tmp_buf, NULL);
}
static int open_plugin_hash_get_entry(uint32_t hash,
struct open_plugin_entry_t *entry,
const char* dat_file)
{
int ret = -1, record = -1;
if (entry)
{
if (hash != 0)
{
if(entry->hash == hash) /* hasn't been flushed yet? */
return -2;
else
op_update_dat(&open_plugin_entry, true);
}
int fd = open(dat_file, O_RDONLY);
if (fd >= 0)
{
while (read(fd, entry, op_entry_sz) == op_entry_sz)
{
record++;
if (hash == 0 || entry->hash == hash)
{
/* NULL terminate fields NOTE -- all are actually +1 larger */
entry->name[OPEN_PLUGIN_NAMESZ] = '\0';
/*entry->key[OPEN_PLUGIN_BUFSZ] = '\0';*/
entry->path[OPEN_PLUGIN_BUFSZ] = '\0';
entry->param[OPEN_PLUGIN_BUFSZ] = '\0';
ret = record;
break;
}
}
close(fd);
}
if (ret < 0)
{
memset(entry, 0, op_entry_sz);
entry->lang_id = -1;
}
}
return ret;
}
int open_plugin_get_entry(const char *key, struct open_plugin_entry_t *entry)
{
uint32_t hash;
key = P2STR((unsigned char *)key);
open_plugin_get_hash(key, &hash); /* in open_plugin.h */
return open_plugin_hash_get_entry(hash, entry, OPEN_PLUGIN_DAT);
}
int open_plugin_run(const char *key)
{
int ret = 0;
const char *path;
const char *param;
if (open_plugin_get_entry(key, &open_plugin_entry) == -2) /* entry needs flushed */
op_update_dat(&open_plugin_entry, false);
path = open_plugin_entry.path;
param = open_plugin_entry.param;
if (param[0] == '\0')
param = NULL;
if (path)
ret = plugin_load(path, param);
if (ret != GO_TO_PLUGIN)
op_clear_entry(&open_plugin_entry);
return ret;
}
void open_plugin_cache_flush(void)
{
op_update_dat(&open_plugin_entry, true);
}
#endif /* ndef __PCTOOL__ */
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