src/apps/cortex/addons/LoggingConsumer/LoggingConsumerAddOn.cpp

   1 /*
   2  * Copyright 1991-1999, Be Incorporated.
   3  * Copyright (c) 1999-2000, Eric Moon.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions, and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
  21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  22  * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  24  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  25  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  28  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32
  33 // LoggingConsumerAddOn.cpp
  34 // e.moon 4jun99
  35
  36 #include "LoggingConsumer.h"
  37 #include "LoggingConsumerAddOn.h"
  38 #include <Entry.h>
  39 #include <Debug.h>
  40 #include <cstring>
  41 #include <cstdlib>
  42
  43 // logfile path
  44 const char* const               g_pLogPath = "/tmp/node_log";
  45
  46
  47 // instantiation function
  48 extern "C" _EXPORT BMediaAddOn* make_media_addon(image_id image) {
  49         return new LoggingConsumerAddOn(image);
  50 }
  51
  52 // -------------------------------------------------------- //
  53 // ctor/dtor
  54 // -------------------------------------------------------- //
  55
  56 LoggingConsumerAddOn::~LoggingConsumerAddOn() {
  57         PRINT(("~LoggingConsumerAddOn()\n"));
  58 }
  59 LoggingConsumerAddOn::LoggingConsumerAddOn(image_id image) :
  60         BMediaAddOn(image) {}
  61
  62 // -------------------------------------------------------- //
  63 // BMediaAddOn impl
  64 // -------------------------------------------------------- //
  65
  66 status_t LoggingConsumerAddOn::InitCheck(
  67         const char** out_failure_text) {
  68         return B_OK;
  69 }
  70
  71 int32 LoggingConsumerAddOn::CountFlavors() {
  72         return 1;
  73 }
  74
  75 status_t LoggingConsumerAddOn::GetFlavorAt(
  76         int32 n,
  77         const flavor_info** out_info) {
  78         if(n)
  79                 return B_ERROR;
  80
  81         flavor_info* pInfo = new flavor_info;
  82         pInfo->internal_id = n;
  83         pInfo->name = (char*)"LoggingConsumer";
  84         pInfo->info = (char*)"An add-on version of the LoggingConsumer node.\n"
  85                 "See the Be Developer Newsletter III.18: 5 May, 1999\n"
  86                 "adapted by Eric Moon (4 June, 1999)";
  87         pInfo->kinds = B_BUFFER_CONSUMER | B_CONTROLLABLE;
  88         pInfo->flavor_flags = 0;
  89         pInfo->possible_count = 0;
  90
  91         pInfo->in_format_count = 1;
  92         media_format* pFormat = new media_format;
  93         pFormat->type = B_MEDIA_UNKNOWN_TYPE;
  94         pInfo->in_formats = pFormat;
  95
  96         pInfo->out_format_count = 0;
  97         pInfo->out_formats = 0;
  98
  99
 100         *out_info = pInfo;
 101         return B_OK;
 102 }
 103
 104 BMediaNode* LoggingConsumerAddOn::InstantiateNodeFor(
 105         const flavor_info* info,
 106         BMessage* config,
 107         status_t* out_error) {
 108
 109         // initialize log file
 110         entry_ref ref;
 111         get_ref_for_path(g_pLogPath, &ref);
 112         LoggingConsumer* pNode = new LoggingConsumer(ref, this);
 113
 114         // trim down the log's verbosity a touch
 115         pNode->SetEnabled(LOG_HANDLE_EVENT, false);
 116
 117         return pNode;
 118 }
 119
 120 status_t LoggingConsumerAddOn::GetConfigurationFor(
 121         BMediaNode* your_node,
 122         BMessage* into_message) {
 123
 124         // no config yet
 125         return B_OK;
 126 }
 127
 128 // END -- LoggingConsumerAddOn.cpp