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view src/aci2/aci/dcm_state.h @ 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 93999a60b835
children
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/*
+-----------------------------------------------------------------------------
|  Project :  GSM-F&D (8411)
|  Modul   :  ACI
+-----------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG
|                 All rights reserved.
|
|                 This file is confidential and a trade secret of Texas
|                 Instruments Berlin, AG
|                 The receipt of or possession of this file does not convey
|                 any rights to reproduce or disclose its contents or to
|                 manufacture, use, or sell anything it may describe, in
|                 whole, or in part, without the specific written consent of
|                 Texas Instruments Berlin, AG.
+-----------------------------------------------------------------------------
|  Description :  DCM instance is a state machine with several possible states.
|                 Based on the current state, DCM handle different kind of messages/events.
|                 States are listed in the order they should normally be sequenced.
+-----------------------------------------------------------------------------
*/

#ifndef __DCMSTATE_H__
#define __DCMSTATE_H__

/**
 * DCM states.
 *
 * DCM instance is a state machine with several possible states.
 * Based on the current state, DCM handle different kind of messages/events.
 * States are listed in the order they should normally be sequenced.
 *
 * See the Readme file for a description of the state machine.
 */
typedef enum
{
	DCM_OFF,
	DCM_IDLE,
	DCM_ACTIVATING_CONN,
	DCM_CONN_ACTIVATED,
	DCM_CLOSING_CONN
} T_DCM_INTERNAL_STATE;


/**
 * DCM substates.
 *
 * DCM instance is a state machine with several possible states.
 * Substates are included in some states.
 */

typedef enum
{
  DCM_SUB_NO_ACTION = 0,                            /* ALL */
  DCM_SUB_WAIT_CGATT_CNF,                           /* DCM_ACTIVATING_CONN */
  DCM_SUB_WAIT_CGACT_CNF,                           /* DCM_ACTIVATING_CONN */
  DCM_SUB_WAIT_SATDN_CNF,                           /* DCM_ACTIVATING_CONN */
  DCM_SUB_WAIT_SATH_CNF,                            /* DCM_CLOSING_CONN    */
  DCM_SUB_WAIT_CGDEATT_CNF,                         /* DCM_CLOSING_CONN    */
  DCM_SUB_WAIT_CGDEACT_CNF                          /* DCM_CLOSING_CONN    */
} T_DCM_INTERNAL_SUBSTATE;


T_DCM_RET dcm_idle (T_DCM_HDR * msg_p);
T_DCM_RET dcm_activating_conn(T_DCM_HDR * msg_p);
T_DCM_RET dcm_conn_activated(T_DCM_HDR * msg_p);
T_DCM_RET dcm_closing_conn(T_DCM_HDR * msg_p );

T_DCM_RET dcm_new_state(U8 state, U8 substate);
T_DCM_RET dcm_save_state(void);
T_DCM_RET dcm_restore_state(void);
void dcm_dispay_state(U8 state, U8 substate);
void dcm_dispay_sub_state(U8 substate_1, U8 substate_2);


#endif