FSSim_supplemental.c
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/*****************************************************************************
* Copyright Statement:
* --------------------
* This software is protected by Copyright and the information contained
* herein is confidential. The software may not be copied and the information
* contained herein may not be used or disclosed except with the written
* permission of MediaTek Inc. (C) 2005
*
* BY OPENING THIS FILE, BUYER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO BUYER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
* SUPPLIED WITH THE MEDIATEK SOFTWARE, AND BUYER AGREES TO LOOK ONLY TO SUCH
* THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO. MEDIATEK SHALL ALSO
* NOT BE RESPONSIBLE FOR ANY MEDIATEK SOFTWARE RELEASES MADE TO BUYER'S
* SPECIFICATION OR TO CONFORM TO A PARTICULAR STANDARD OR OPEN FORUM.
*
* BUYER'S SOLE AND EXCLUSIVE REMEDY AND MEDIATEK'S ENTIRE AND CUMULATIVE
* LIABILITY WITH RESPECT TO THE MEDIATEK SOFTWARE RELEASED HEREUNDER WILL BE,
* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
* OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE CHARGE PAID BY BUYER TO
* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* THE TRANSACTION CONTEMPLATED HEREUNDER SHALL BE CONSTRUED IN ACCORDANCE
* WITH THE LAWS OF THE STATE OF CALIFORNIA, USA, EXCLUDING ITS CONFLICT OF
* LAWS PRINCIPLES. ANY DISPUTES, CONTROVERSIES OR CLAIMS ARISING THEREOF AND
* RELATED THERETO SHALL BE SETTLED BY ARBITRATION IN SAN FRANCISCO, CA, UNDER
* THE RULES OF THE INTERNATIONAL CHAMBER OF COMMERCE (ICC).
*
*****************************************************************************/
/*****************************************************************************
*
* Filename:
* ---------
* FSSim_supplemental.c
*
* Project:
* --------
* FSSIM
*
* Description:
* ------------
* This file implements supplemental functions of File System Simulation.
*
* Author:
* -------
* -------
*
*============================================================================
* HISTORY
* Below this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*------------------------------------------------------------------------------
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*------------------------------------------------------------------------------
* Upper this line, this part is controlled by PVCS VM. DO NOT MODIFY!!
*============================================================================
****************************************************************************/
#define UNICODE
#include <windows.h>
#include <stdio.h>
#include <string.h>
#include "kal_release.h"
#include "fat_fs.h"
#include "FSSim_def.h"
/*************************************************************************/
/* Definitions of global data */
/*************************************************************************/
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* fssim_create_mutex */
/* */
/* DESCRIPTION */
/* */
/* This function is used to create a mutex. */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* Pointer to mutex */
/* */
/*************************************************************************/
void *fssim_create_mutex()
{
static char next_mutex_name[] = "FS_N";
static unsigned int fssim_mutex_counter = 0;
const char hex_digits[] = "0123456789ABCDEF";
FSSIM_MUTEX_T *mutex;
next_mutex_name[ strlen(next_mutex_name) - 1 ] = hex_digits[fssim_mutex_counter++];
fssim_mutex_counter = fssim_mutex_counter % strlen(hex_digits);
mutex=malloc(sizeof(FSSIM_MUTEX_T));
mutex->rtf_sem=kal_create_mutex(next_mutex_name);
mutex->rtf_sem_owner=-1;
mutex->rtf_lock_count=0;
return (void *) mutex;
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* fssim_take_mutex */
/* */
/* DESCRIPTION */
/* */
/* This function is used to take a mutex. */
/* */
/* INPUTS */
/* mutex - poitner to mutex */
/* */
/* OUTPUTS */
/* None */
/* */
/*************************************************************************/
void fssim_take_mutex(void *mutex)
{
DWORD current_task;
FSSIM_MUTEX_T *m = (FSSIM_MUTEX_T*)mutex;
if (kal_query_systemInit() == KAL_TRUE)
return;
current_task = GetCurrentThreadId();
if (m->rtf_sem_owner == current_task) {
m->rtf_lock_count++;
return;
}
kal_take_mutex(m->rtf_sem);
m->rtf_sem_owner=current_task;
m->rtf_lock_count=1;
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* fssim_give_mutex */
/* */
/* DESCRIPTION */
/* */
/* This function is used to give a mutex. */
/* */
/* INPUTS */
/* mutex - poitner to mutex */
/* */
/* OUTPUTS */
/* None */
/* */
/*************************************************************************/
void fssim_give_mutex(void *mutex)
{
DWORD current_task;
FSSIM_MUTEX_T *m = (FSSIM_MUTEX_T*)mutex;
if (kal_query_systemInit() == KAL_TRUE)
return;
current_task = GetCurrentThreadId();
m->rtf_lock_count--;
if (m->rtf_lock_count==0) {
m->rtf_sem_owner=-1;
kal_give_mutex(m->rtf_sem);
}
}
/**
* @brief this function returns task name string pointer
*
* @param curr_task_ptr
* Task ID
* @return
* NULL: No task name could be retrieved. System may be in initialization stage.
* A task name string pointer
*/
extern void* kal_get_task_name_ptr(void* curr_task_ptr);
void *fssim_get_task_name_ptr(void* curr_task_ptr)
{
return kal_get_task_name_ptr(curr_task_ptr);
}
/**
* @brief this function prints current used file table slots
*/
void fssim_dbg_print_file_table(void)
{
const char UNKNOWN_TASK_NAME[] = "UND";
const TCHAR UNKNOWN_FILE_NAME[] = L"NULL";
int i;
char *task_name;
TCHAR* file_name;
// print file table
printf("=======================================\n");
printf(" File System File Table\n");
printf("=======================================\n\n");
for (i = 1; i <= FSSIM_MAX_FILE; i++)
{
if (fssim_file[i].state == STATE_INUSE)
{
task_name = (char*)fssim_get_task_name_ptr(fssim_file[i].taskid);
file_name = fssim_file[i].filename;
if (task_name == NULL)
task_name = (char*)UNKNOWN_TASK_NAME;
if (*file_name == 0)
file_name = (TCHAR*)UNKNOWN_FILE_NAME;
printf("File table[%d] - <%s> ", i, task_name);
wprintf(L"%s\n", file_name);
}
}
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* fssim_get_task_self_id */
/* */
/* DESCRIPTION */
/* */
/* This function is used to current task's ID */
/* */
/* INPUTS */
/* None */
/* */
/* OUTPUTS */
/* Task id */
/* */
/*************************************************************************/
void *fssim_get_task_self_id()
{
return kal_get_task_self_id();
}
/*************************************************************************/
/* */
/* FUNCTION */
/* */
/* fssim_print_str */
/* */
/* DESCRIPTION */
/* */
/* This function is used to print a string */
/* */
/* INPUTS */
/* str - poitner to string */
/* */
/* OUTPUTS */
/* None */
/* */
/*************************************************************************/
void fssim_print_str(const TCHAR *str)
{
unsigned int i;
char *pch;
ASSERT(str != NULL);
for (i = 0; i < wcslen(str); i++) {
pch = (char *)&(str[i]);
fssim_printf(("%c", *pch));
}
fssim_printf(("\n"));
}
#undef UNICODE