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tkm
Joined: 18 Jan 2011 Posts: 72
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Posted: Wed Oct 12, 2011 1:57 pm Post subject: add_data() retrieval behaving inappropriate |
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Hello, I am trying to use app_data(). I am trying to save some data and later retrieve them. Before saving I check if the data already exist or not. My prob is it works first time as expected--finds no data as the array is empty;saves the new data and on retrieval says a match is found.
The problem is: when I try to insert another data it says match found;whereas the data shouldn't be there as data being new. I am pretty much sure my algorithm/code is right. But can't sort out this wrong behaviour. I am using call control as well in the program. Does it anyhow affects the data stored in EEPROM? My code:
Code: |
typedef struct _Pers_mem
{
u8 active;
u8 service_nr[MAX_NR_LEN];
u8 *array_dialing_nr[MAX_NR_AMOUNT];
}
Pers_mem;
////////////////////// The following two lines happens in register function
for (i = 0; i < MAX_NR_AMOUNT; i++)
ww (&p->array_dialing_nr[i], NULL);
////////////////////////
Pers_mem *p2=app_data ();
for(i=0; i<MAX_NR_AMOUNT;i++)
{
val=rw(&p2->array_dialing_nr[i]);
if(val==NULL)
{
dbsp ("\nBreaking out\n");
break;
}
if((val[0]==s[0]) && (val[1]==s[1]) && (val[2]==s[2]) && (val[3]==s[3]) && (val[4]==s[4]) && (val[5]==s[5]) && (val[6]==s[6]))
{
found=1;
dbsp ("\nFound\n");
break;
}
}
if(found==0)
{
u8 *saving_number_loc;
saving_number_loc = emalloc (sizeof(u8)*20);
memcpy(&saving_number_loc, &s , strlen(s) );
if(i>0)
{
memcpy(&p2->array_dialing_nr[i],&saving_number_loc,sizeof(u8 *));
}
else
{
memcpy(&p2->array_dialing_nr[0],&saving_number_loc,sizeof(u8 *));
}
}//end |
Any help would be much appreciated. Many thanks. |
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Tim
Joined: 30 Sep 2011 Posts: 12
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Posted: Wed Oct 12, 2011 4:19 pm Post subject: |
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Hi tkm, I'm quite new to this (...so I could be wrong) - but I'm using EEPROM storage in my app and I'm using the wb() call to write each byte. I think I tried memcpy() and it didn't work. |
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pz
Joined: 12 Mar 2004 Posts: 1161
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Posted: Thu Oct 13, 2011 7:27 am Post subject: Re: add_data() retrieval behaving inappropriate |
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tkm wrote: | Hello, I am trying to use app_data(). I am trying to save some data and later retrieve them. Before saving I check if the data already exist or not. My prob is it works first time as expected--finds no data as the array is empty;saves the new data and on retrieval says a match is found.
The problem is: when I try to insert another data it says match found;whereas the data shouldn't be there as data being new. I am pretty much sure my algorithm/code is right. But can't sort out this wrong behaviour. I am using call control as well in the program. Does it anyhow affects the data stored in EEPROM? My code:
Code: |
typedef struct _Pers_mem
{
u8 active;
u8 service_nr[MAX_NR_LEN];
u8 *array_dialing_nr[MAX_NR_AMOUNT];
}
Pers_mem;
////////////////////// The following two lines happens in register function
for (i = 0; i < MAX_NR_AMOUNT; i++)
ww (&p->array_dialing_nr[i], NULL);
////////////////////////
Pers_mem *p2=app_data ();
for(i=0; i<MAX_NR_AMOUNT;i++)
{
val=rw(&p2->array_dialing_nr[i]);
if(val==NULL)
{
dbsp ("\nBreaking out\n");
break;
}
if((val[0]==s[0]) && (val[1]==s[1]) && (val[2]==s[2]) && (val[3]==s[3]) && (val[4]==s[4]) && (val[5]==s[5]) && (val[6]==s[6]))
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This val[]==... seems wrong. Use rb(val[])==...
Quote: |
Code: |
{
found=1;
dbsp ("\nFound\n");
break;
}
}
if(found==0)
{
u8 *saving_number_loc;
saving_number_loc = emalloc (sizeof(u8)*20);
memcpy(&saving_number_loc, &s , strlen(s) );
if(i>0)
{
memcpy(&p2->array_dialing_nr[i],&saving_number_loc,sizeof(u8 *));
}
else
{
memcpy(&p2->array_dialing_nr[0],&saving_number_loc,sizeof(u8 *));
}
}//end |
Any help would be much appreciated. Many thanks. |
Also no need to use memcpy() just to write a pointer, ww() is enough. |
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tkm
Joined: 18 Jan 2011 Posts: 72
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Posted: Fri Oct 14, 2011 9:10 am Post subject: |
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Thanks a lot, Tim and PZ. Using WB instead of memcpy did the trick. Much appreciated. |
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