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view src/cs/services/Audio/audio_sr_reco.c @ 516:1ed9de6c90bd

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src/g23m-gsm/sms/sms_for.c: bogus malloc removed The new error handling code that was not present in TCS211 blob version contains a malloc call that is bogus for 3 reasons: 1) The memory allocation in question is not needed in the first place; 2) libc malloc is used instead of one of the firmware's proper ways; 3) The memory allocation is made inside a function and then never freed, i.e., a memory leak. This bug was caught in gcc-built FreeCalypso fw projects (Citrine and Selenite) because our gcc environment does not allow any use of libc malloc (any reference to malloc produces a link failure), but this code from TCS3.2 is wrong even for Magnetite: if this code path is executed repeatedly over a long time, the many small allocations made by this malloc call without a subsequent free will eventually exhaust the malloc heap provided by the TMS470 environment, malloc will start returning NULL, and the bogus code will treat it as an error. Because the memory allocation in question is not needed at all, the fix entails simply removing it.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Jul 2018 06:04:49 +0000
parents 945cf7f506b2
children
line wrap: on
line source

/****************************************************************************/
/*                                                                          */
/*  File Name:  audio_sr_reco.c                                             */
/*                                                                          */
/*  Purpose:  This file contains all the functions used to manage the       */
/*            recognition of a word for the speech recognition module.      */
/*                                                                          */
/*  Version   0.1                                                           */
/*                                                                          */
/*  Date        Modification                                                */
/*  ------------------------------------                                    */
/*  09 Oct. 2001 Create                                                     */
/*                                                                          */
/*  Author                                                                  */
/*     Francois Mazard - Stephanie Gerthoux                                 */
/*                                                                          */
/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/
/****************************************************************************/

#include "rv/rv_defined_swe.h"
#ifdef RVM_AUDIO_MAIN_SWE
  #ifndef _WINDOWS
    #include "config/swconfig.cfg"
    #include "config/sys.cfg"
    #include "config/chipset.cfg"
  #endif

  /* include the usefull L1 header */
  #include "l1_confg.h"

  #if (SPEECH_RECO)
    #include "rv/rv_general.h"
    #include "rvm/rvm_gen.h"
    #include "audio/audio_features_i.h"
    #include "audio/audio_ffs_i.h"
    #include "audio/audio_api.h"
    #include "audio/audio_structs_i.h"
    #include "audio/audio_var_i.h"
    #include "audio/audio_messages_i.h"
    #include "rvf/rvf_target.h"
    #include "audio/audio_const_i.h"
    #include "audio/audio_error_hdlr_i.h"
    #include "audio/audio_macro_i.h"

    /* include the usefull L1 header */
    #define BOOL_FLAG
    #define CHAR_FLAG
    #include "l1_types.h"
    #include "l1audio_cust.h"
    #include "l1audio_msgty.h"
    #include "l1audio_signa.h"
    #include "l1audio_cust.h"

    #include <string.h>

  /********************************************************************************/
  /*                                                                              */
  /*    Function Name:   audio_sr_reco_convert_parameter                          */
  /*                                                                              */
  /*    Purpose:  Convert the speech reco parameters from the entity to           */
  /*              the l1 parameters                                               */
  /*                                                                              */
  /*    Input Parameters:                                                         */
  /*        entity speech reco message                                            */
  /*                                                                              */
  /*    Output Parameters:                                                        */
  /*        layer 1 speech reco message                                           */
  /*                                                                              */
  /*    Note:                                                                     */
  /*        None.                                                                 */
  /*                                                                              */
  /*    Revision History:                                                         */
  /*        None.                                                                 */
  /*                                                                              */
  /********************************************************************************/
  void audio_sr_reco_convert_parameter( T_AUDIO_SR_RECO_START *entity_parameter,
                                          T_MMI_SR_RECO_REQ *l1_parameter)
  {
    l1_parameter->database_id = 0;
    l1_parameter->vocabulary_size = entity_parameter->vocabulary_size;
  }

  /********************************************************************************/
  /*                                                                              */
  /*    Function Name:   audio_sr_reco_send_status                                */
  /*                                                                              */
  /*    Purpose:  This function sends the speech reco status to the               */
  /*              entity.                                                         */
  /*                                                                              */
  /*    Input Parameters:                                                         */
  /*        status,                                                               */
  /*        return path                                                           */
  /*                                                                              */
  /*    Output Parameters:                                                        */
  /*        None.                                                                 */
  /*                                                                              */
  /*    Note:                                                                     */
  /*        None.                                                                 */
  /*                                                                              */
  /*    Revision History:                                                         */
  /*        None.                                                                 */
  /*                                                                              */
  /********************************************************************************/
  void audio_sr_reco_send_status (T_AUDIO_RET status, UINT8 word_index, T_RV_RETURN return_path)
  {
    void  *p_send_message = NULL;
    T_RVF_MB_STATUS mb_status = RVF_RED;
    #ifndef _WINDOWS
      UINT8   i;
      char    *p_database;
      char    *p_word_name;
      UINT8   model_name_lengh;
    #endif

    while (mb_status == RVF_RED)
    {
     /* allocate the message buffer */
      mb_status = rvf_get_buf (p_audio_gbl_var->mb_external,
                               sizeof (T_AUDIO_SR_RECO_STATUS),
                               (T_RVF_BUFFER **) (&p_send_message));

      /* If insufficient resources, then report a memory error and abort.               */
      /* and wait until more ressource is given */
      if (mb_status == RVF_RED)
      {
        audio_sr_error_trace(AUDIO_ENTITY_NO_MEMORY);
        rvf_delay(RVF_MS_TO_TICKS(1000));
      }
    }

    /*fill the header of the message */
    ((T_AUDIO_SR_RECO_STATUS *)(p_send_message))->os_hdr.msg_id = AUDIO_SR_RECO_STATUS_MSG;

    if (status > 0)
    {
      status = (INT8)((-2) - status);
    }

    if (status == SC_NO_ERROR)
    /* no error occured dring the recognition */
    {
      #ifndef _WINDOWS
        /* search the name of the recognized word */
        p_database = p_audio_gbl_var->speech_reco.sr_reco.p_database;
        for(i=0; i< word_index; i++)
        {
          p_database += AUDIO_PATH_NAME_MAX_SIZE;
        }

        /* the _sr need to be suppress */
        model_name_lengh = (strlen(p_database) - 3);

        /* copy this path in the message */
        strncpy(((T_AUDIO_SR_RECO_STATUS *)(p_send_message))->word_recognized,
          p_database,
          model_name_lengh);
        p_word_name = (char *)(((T_AUDIO_SR_RECO_STATUS *)(p_send_message))->word_recognized);
        p_word_name += model_name_lengh;
        *p_word_name = 0;
      #endif
    }

    /* fill the status parameters */
    ((T_AUDIO_SR_RECO_STATUS *)(p_send_message))->status = status;

    if (return_path.callback_func == NULL)
    {
      /* send the message to the entity */
      rvf_send_msg (return_path.addr_id,
                    p_send_message);
    }
    else
    {
      /* call the callback function */
      (*return_path.callback_func)((void *)(p_send_message));
	  rvf_free_buf((T_RVF_BUFFER *)p_send_message);
    }
  }

  /********************************************************************************/
  /*                                                                              */
  /*    Function Name:   audio_sr_reco_manager                                    */
  /*                                                                              */
  /*    Purpose:  This function is called to manage a speech reco                 */
  /*              process.                                                        */
  /*                                                                              */
  /*    Input Parameters:                                                         */
  /*        Audio Speech reco reco Parameters,                                    */
  /*                                                                              */
  /*    Output Parameters:                                                        */
  /*        None.                                                                 */
  /*                                                                              */
  /*    Note:                                                                     */
  /*        None.                                                                 */
  /*                                                                              */
  /*    Revision History:                                                         */
  /*        None.                                                                 */
  /*                                                                              */
  /********************************************************************************/
  void audio_sr_reco_manager (T_RV_HDR *p_message)
  {
    /* Declare local variables.                                                   */
    void      *p_send_message;

    /**************** audio_sr_reco_manager function begins *********************/
    switch(p_audio_gbl_var->speech_reco.sr_reco.state)
    {
      case AUDIO_SR_RECO_IDLE:
        {
          switch(p_message->msg_id)
          {
             case AUDIO_SR_RECO_START_REQ:
              {
                /* save the task id of the entity */
                p_audio_gbl_var->speech_reco.sr_reco.task_id =
                  ((T_AUDIO_SR_RECO_START*)(p_message))->os_hdr.src_addr_id;

                /* save the return path */
                p_audio_gbl_var->speech_reco.sr_reco.return_path.callback_func =
                  ((T_AUDIO_SR_RECO_START*)(p_message))->return_path.callback_func;
                p_audio_gbl_var->speech_reco.sr_reco.return_path.addr_id =
                  ((T_AUDIO_SR_RECO_START*)(p_message))->return_path.addr_id;

                /* save the message parameters */
                p_audio_gbl_var->speech_reco.sr_reco.vocabulary_size =
                  ((T_AUDIO_SR_RECO_START*)(p_message))->vocabulary_size;
                p_audio_gbl_var->speech_reco.sr_reco.p_database =
                  ((T_AUDIO_SR_RECO_START*)(p_message))->p_database;

                /* allocate the buffer for the message to the L1 */
                p_send_message = audio_allocate_l1_message(sizeof(T_MMI_SR_RECO_REQ));
                if ( p_send_message != NULL)
                {
                  /* Convert the entity parameters to the audio L1 parameters */
                  audio_sr_reco_convert_parameter((T_AUDIO_SR_RECO_START *)p_message,
                                                    (T_MMI_SR_RECO_REQ *)p_send_message);

                  /* send the start command to the audio L1 */
                  audio_send_l1_message(MMI_SR_RECO_START_REQ, p_send_message);
                }

                /* change to the state AUDIO_SR_RECO_WAIT_START_CONFIRMATION */
                p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_WAIT_START_CON;
               break;
               }

             case AUDIO_SR_RECO_STOP_REQ:
              {
                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_STOP *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_STOP_EVENT);
                break;
              }
          }
        break;
        } /* case AUDIO_SR_RECO_IDLE */

      case AUDIO_SR_RECO_WAIT_START_CON:
        {
          switch(p_message->msg_id)
          {
             case MMI_SR_RECO_START_CON:
              {
                /* change to the state AUDIO_SR_RECO_WAIT_STOP_COMMAND */
              p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_WAIT_STOP_COMMAND;
              break;
              }
             case AUDIO_SR_RECO_STOP_REQ:
               /*.Before stopping this task, control that                           */
               /*          stop task id caller = SR reco task id                  */
               {
                 if ( p_audio_gbl_var->speech_reco.sr_reco.task_id ==
                        ((T_AUDIO_SR_RECO_STOP*)(p_message))->os_hdr.src_addr_id)
                 {
                    /* save the return path */
                    p_audio_gbl_var->speech_reco.sr_reco.return_path.callback_func =
                      ((T_AUDIO_SR_RECO_STOP*)(p_message))->return_path.callback_func;
                    p_audio_gbl_var->speech_reco.sr_reco.return_path.addr_id =
                      ((T_AUDIO_SR_RECO_STOP*)(p_message))->return_path.addr_id;

                    /* change to the state AUDIO_SR_RECO_WAIT_STOP_CONFIRMATION */
                    p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_WAIT_START_CON_TO_STOP;
                 }
                 else
                 {
                   /* A stop request from an other task is sent during a start connection */
                   /* event error - send an error message  */
                   audio_sr_reco_send_status (AUDIO_ERROR, 0,
                     ((T_AUDIO_SR_RECO_STOP *)(p_message))->return_path);

                   audio_sr_error_trace(AUDIO_ERROR_STOP_EVENT);
                 }
              break;
              }
            case AUDIO_SR_RECO_START_REQ:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(((T_AUDIO_SR_RECO_START *)(p_message))->p_database));

                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_START *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_START_EVENT);
              break;
              }
          }
        break;
        } /* case AUDIO_SR_RECO_WAIT_START_CON */

       case AUDIO_SR_RECO_WAIT_START_CON_TO_STOP:
        {
          switch(p_message->msg_id)
          {
             case MMI_SR_RECO_START_CON:
              {
                /* send the stop command to the audio L1 */
                /* allocate the buffer for the message to the L1 */
                p_send_message = audio_allocate_l1_message(0);
                if ( p_send_message != NULL)
                {
                  /* send the start command to the audio L1 */
                  audio_send_l1_message(MMI_SR_RECO_STOP_REQ, p_send_message);
                }

                /* change to the state AUDIO_SR_RECO_WAIT_STOP_CON */
                p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_WAIT_STOP_CON;
               break;
               }
              case AUDIO_SR_RECO_START_REQ:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(((T_AUDIO_SR_RECO_START *)(p_message))->p_database));

                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_START *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_START_EVENT);
              break;
              }
              case AUDIO_SR_RECO_STOP_REQ:
              {
                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_STOP *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_STOP_EVENT);
              break;
              }
          }
        break;
        }

       case AUDIO_SR_RECO_WAIT_STOP_COMMAND:
        {
          switch(p_message->msg_id)
          {
             case MMI_SR_RECO_STOP_CON:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(p_audio_gbl_var->speech_reco.sr_reco.p_database));

                audio_sr_reco_send_status (((T_MMI_SR_RECO_STOP_CON *)p_message)->error_id,
                  (UINT8)((T_MMI_SR_RECO_STOP_CON *)p_message)->best_word_index,
                  p_audio_gbl_var->speech_reco.sr_reco.return_path);

                /* change to the state AUDIO_SR_RECO_IDLE */
                p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_IDLE;
               break;
              }

             case AUDIO_SR_RECO_STOP_REQ:
             {
              /*.Before stopping this task, control that                           */
              /*          stop task id caller = SR reco task id                  */
              if ( p_audio_gbl_var->speech_reco.sr_reco.task_id ==
                     ((T_AUDIO_SR_RECO_STOP*)(p_message))->os_hdr.src_addr_id)
              {
                /* save the return path */
                p_audio_gbl_var->speech_reco.sr_reco.return_path.callback_func =
                  ((T_AUDIO_SR_RECO_STOP*)(p_message))->return_path.callback_func;
                p_audio_gbl_var->speech_reco.sr_reco.return_path.addr_id =
                  ((T_AUDIO_SR_RECO_STOP*)(p_message))->return_path.addr_id;

                /* send the stop command to the audio L1 */
                /* allocate the buffer for the message to the L1 */
                p_send_message = audio_allocate_l1_message(0);
                if ( p_send_message != NULL)
                {
                  /* send the start command to the audio L1 */
                  audio_send_l1_message(MMI_SR_RECO_STOP_REQ, p_send_message);
                }

                /* change to the state AUDIO_SR_RECO_WAIT_STOP_CONFIRMATION */
                p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_WAIT_STOP_CON;
              }
              else
              {
                /* A stop request from an other task is sent during a start connection */
                /* event error - send an error message  */
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_STOP *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_STOP_EVENT);
              }
              break;
            }

            case AUDIO_SR_RECO_START_REQ:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(((T_AUDIO_SR_RECO_START *)(p_message))->p_database));

                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_START *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_START_EVENT);
              break;
              }
          }
        break;
        } /* case AUDIO_SR_RECO_WAIT_STOP_COMMAND */

        case AUDIO_SR_RECO_WAIT_STOP_CON:
        {
          switch(p_message->msg_id)
          {
             case MMI_SR_RECO_STOP_CON:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(p_audio_gbl_var->speech_reco.sr_reco.p_database));

                audio_sr_reco_send_status (((T_MMI_SR_RECO_STOP_CON *)p_message)->error_id,
                  (UINT8)((T_MMI_SR_RECO_STOP_CON *)p_message)->best_word_index,
                  p_audio_gbl_var->speech_reco.sr_reco.return_path);

                /* change to the state AUDIO_SR_RECO_IDLE */
                 p_audio_gbl_var->speech_reco.sr_reco.state = AUDIO_SR_RECO_IDLE;
               break;
               }
             case AUDIO_SR_RECO_STOP_REQ:
              {
                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_STOP *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_STOP_EVENT);
              break;
              }
            case AUDIO_SR_RECO_START_REQ:
              {
                /* deallocate the vocabulary data buffer */
                rvf_free_buf(
                  (T_RVF_BUFFER *)(((T_AUDIO_SR_RECO_START *)(p_message))->p_database));

                /* event error - send an error message*/
                audio_sr_reco_send_status (AUDIO_ERROR, 0,
                  ((T_AUDIO_SR_RECO_START *)(p_message))->return_path);

                audio_sr_error_trace(AUDIO_ERROR_START_EVENT);
              break;
              }
          }
        break;
        } /* case AUDIO_SR_RECO_WAIT_STOP_CON */
    } /* switch(p_audio_gbl_var->speech_reco.state) */
  } /*********************** End of audio_sr_reco_manager function **********************/
  #endif /*  #if (SPEECH_RECO) */
#endif /* #ifdef RVM_AUDIO_MAIN_SWE */