apps/plugins/searchengine/searchengine.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2005 by Michiel van der Kolk
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "searchengine.h"
  22 #include "parser.h"
  23 #include "token.h"
  24 #include "dbinterface.h"
  25
  26 PLUGIN_HEADER
  27
  28 void *audio_bufferbase;
  29 void *audio_bufferpointer;
  30 size_t audio_buffer_free;
  31 int w, h, y;
  32
  33 void *my_malloc(size_t size)
  34 {
  35     void *alloc;
  36
  37     if (!audio_bufferbase)
  38     {
  39         audio_bufferbase = audio_bufferpointer
  40             = rb->plugin_get_audio_buffer(&audio_buffer_free);
  41         audio_bufferpointer+=3;
  42         audio_bufferpointer=(void *)(((long)audio_bufferpointer)&~3);
  43         audio_buffer_free-=audio_bufferpointer-audio_bufferbase;
  44     }
  45     if (size + 4 > audio_buffer_free)
  46         return 0;
  47     alloc = audio_bufferpointer;
  48     audio_bufferpointer +=(size+3)&~3; // alignment
  49     audio_buffer_free -= (size+3)&~3;
  50     return alloc;
  51 }
  52
  53 void setmallocpos(void *pointer)
  54 {
  55     audio_bufferpointer = pointer;
  56     audio_buffer_free = audio_bufferpointer - audio_bufferbase;
  57 }
  58
  59 /* this is the plugin entry point */
  60 enum plugin_status plugin_start(const void* parameter)
  61 {
  62     unsigned char *result,buf[500];
  63     int parsefd,hits;
  64
  65     audio_bufferbase=audio_bufferpointer=0;
  66     audio_buffer_free=0;
  67
  68     /* now go ahead and have fun! */
  69     PUTS("SearchEngine v0.1");
  70     parsefd=rb->open(parameter,O_RDONLY);
  71     if(parsefd<0) {
  72         rb->splash(2*HZ,"Unable to open search tokenstream");
  73         return PLUGIN_ERROR;
  74     }
  75     result=parse(parsefd);
  76     rb->snprintf(buf,250,"Retval: 0x%x",result);
  77     PUTS(buf);
  78     rb->close(parsefd);
  79     hits=0;
  80     if(result!=0) {
  81         int fd=rb->open("/search.m3u", O_WRONLY|O_CREAT|O_TRUNC);
  82         int i;
  83         for(i=0;i<rb->tagdbheader->filecount;i++)
  84             if(result[i]) {
  85                 hits++;
  86                 rb->fdprintf(fd,"%s\n",getfilename(i));
  87             }
  88         rb->close(fd);
  89     }
  90     rb->snprintf(buf,250,"Hits: %d",hits);
  91     rb->splash(HZ*3,buf);
  92     if (result!=0) {
  93         /* Return PLUGIN_USB_CONNECTED to force a file-tree refresh */
  94         return PLUGIN_USB_CONNECTED;
  95     }
  96     return PLUGIN_OK;
  97 }