Re: [firebird-support] UDF or/and maybe Charset problem
24.08.2017 15:07, Rudi Feijó rudi.fe...@multidadosti.com.br [firebird-support] wrote: > is there any problems if I just declare all UDF's with FREE IT? Yes, server will have problems trying to free memory that wasn't allocated. -- WBR, SD.
RE: [firebird-support] UDF or/and maybe Charset problem
>You must use ib_util_malloc() to allocate memory in UDF and don't forget >FREE_IT in declaration to avoid memory leak. Dimitry, on a similar question, is there any problems if I just declare all UDF's with FREE IT? We use dozens of UDF's, but only half of them are declared as FREE IT, and I have no way of knowing which ones should be freeing memory or not
Re: [firebird-support] UDF or/and maybe Charset problem
24.08.2017 12:00, Nagy Szilveszter nagy_szilvesz...@yahoo.com [firebird-support] wrote: > out = (char*)calloc(strlen(str), sizeof(char)); > result = (char*)calloc(j, sizeof(char)); Besides, here and there you forgot about space for terminating null char. -- WBR, SD. ++ Visit http://www.firebirdsql.org and click the Documentation item on the main (top) menu. Try FAQ and other links from the left-side menu there. Also search the knowledgebases at http://www.ibphoenix.com/resources/documents/ ++ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: firebird-support-dig...@yahoogroups.com firebird-support-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: firebird-support-unsubscr...@yahoogroups.com <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/
Re: [firebird-support] UDF or/and maybe Charset problem
No, it has value of TRX12270
On Thursday, August 24, 2017, 12:56:09 PM GMT+3, Antônio Gomes
acgomes2...@yahoo.com.br [firebird-support] <firebird-support@yahoogroups.com>
wrote:
there no a null string?
De: "Nagy Szilveszter nagy_szilvesz...@yahoo.com [firebird-support]"
<firebird-support@yahoogroups.com>
Para: Firebird-support <firebird-support@yahoogroups.com>
Enviadas: Quinta-feira, 24 de Agosto de 2017 6:41
Assunto: [firebird-support] UDF or/and maybe Charset problem
Hi,
i have an UDF function that runs perfectly on Linux 64 bit systems. I wanted to
port it to Windows 32 bit, but i'm having problems there.
The UDF was written in C (not C++), compiled on Linux with gcc, everything
works fine.
I compiled the same C file on Windows with MinGW Developer Studio (using MinGW
compiler)
Here is the function with problems (the functions returns the same string but
deletes every non alphanumerical character):
char *strpeel(char *str){
unsigned int i = 0, j = 0;
char *out;
str = strupr(str);
out = (char*)calloc(strlen(str), sizeof(char));
for (i=0; i<strlen(str); i++){
if ((str[i] >= 'A' && str[i] <= 'Z') || (str[i] >= '0' && str[i] <=
'9')) {
out[j++] = str[i];
}
}
char * result;
result = (char*)calloc(j, sizeof(char));
strcpy(result, out);
return result;
}
This is the declaration of UDF in Firebird:
DECLARE EXTERNAL FUNCTION STRPEEL
CSTRING(255)
RETURNS CSTRING(255)
ENTRY_POINT 'strpeel' MODULE_NAME 'utils-udf';
When i test this function it runs correctly:
select strpeel('ABC - 123') from rdb$database > returns: 'ABC123'
But when i run it on my PRODUCTS table, there are some rows where this function
crashes:
select product_code, strpeel(product_code) from products
The field PRODUCT_CODE is Varchar(30) charset UTF8 collate UTF8
At row 51 the string must have some invisible characters that makes the UDF to
crash.
The firebird.log says:
The user defined function: STRPEEL
referencing entrypoint: strpeel
in module: utils-udf
caused the fatal exception: Access violation.
The code attempted to access a virtual
address without privilege to do so.
This exception will cause the Firebird server
to terminate abnormally.
Shutting down the server with 2 active connection(s) to 2 database(s), 0
active service(s)
Firebird shutdown is still in progress after the specified timeout
Operating system call ReleaseSemaphore failed. Error code 6
Operating system call ReleaseSemaphore failed. Error code 6
That code in that line is TRX12270
If i run select strpeel('TRX12270') from rdb$database - it works fine
If i copy that string from table and replace the above string then it crashes
again. So there must be something wrong in that field.
Also if i edit the table and rewrite the code then it works fine.
I also checked the characters with ASCII_VAL but i can see nothing strange.
As the UDF, there are 2 memory allocations for strings and no freeing it,
neither FREE_IT was used. I dont know if this is a problem since other strings
work well with this UDF.
Please help me detect and correct this issue!
Thank you!
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Re: [firebird-support] UDF or/and maybe Charset problem
there no a null string?
De: "Nagy Szilveszter nagy_szilvesz...@yahoo.com [firebird-support]"
<firebird-support@yahoogroups.com>
Para: Firebird-support <firebird-support@yahoogroups.com>
Enviadas: Quinta-feira, 24 de Agosto de 2017 6:41
Assunto: [firebird-support] UDF or/and maybe Charset problem
Hi,
i have an UDF function that runs perfectly on Linux 64 bit systems. I wanted to
port it to Windows 32 bit, but i'm having problems there.
The UDF was written in C (not C++), compiled on Linux with gcc, everything
works fine.
I compiled the same C file on Windows with MinGW Developer Studio (using MinGW
compiler)
Here is the function with problems (the functions returns the same string but
deletes every non alphanumerical character):
char *strpeel(char *str){
unsigned int i = 0, j = 0;
char *out;
str = strupr(str);
out = (char*)calloc(strlen(str), sizeof(char));
for (i=0; i<strlen(str); i++){
if ((str[i] >= 'A' && str[i] <= 'Z') || (str[i] >= '0' && str[i] <=
'9')) {
out[j++] = str[i];
}
}
char * result;
result = (char*)calloc(j, sizeof(char));
strcpy(result, out);
return result;
}
This is the declaration of UDF in Firebird:
DECLARE EXTERNAL FUNCTION STRPEEL
CSTRING(255)
RETURNS CSTRING(255)
ENTRY_POINT 'strpeel' MODULE_NAME 'utils-udf';
When i test this function it runs correctly:
select strpeel('ABC - 123') from rdb$database > returns: 'ABC123'
But when i run it on my PRODUCTS table, there are some rows where this function
crashes:
select product_code, strpeel(product_code) from products
The field PRODUCT_CODE is Varchar(30) charset UTF8 collate UTF8
At row 51 the string must have some invisible characters that makes the UDF to
crash.
The firebird.log says:
The user defined function: STRPEEL
referencing entrypoint: strpeel
in module: utils-udf
caused the fatal exception: Access violation.
The code attempted to access a virtual
address without privilege to do so.
This exception will cause the Firebird server
to terminate abnormally.
Shutting down the server with 2 active connection(s) to 2 database(s), 0
active service(s)
Firebird shutdown is still in progress after the specified timeout
Operating system call ReleaseSemaphore failed. Error code 6
Operating system call ReleaseSemaphore failed. Error code 6
That code in that line is TRX12270
If i run select strpeel('TRX12270') from rdb$database - it works fine
If i copy that string from table and replace the above string then it crashes
again. So there must be something wrong in that field.
Also if i edit the table and rewrite the code then it works fine.
I also checked the characters with ASCII_VAL but i can see nothing strange.
As the UDF, there are 2 memory allocations for strings and no freeing it,
neither FREE_IT was used. I dont know if this is a problem since other strings
work well with this UDF.
Please help me detect and correct this issue!
Thank you!
#yiv3803517428 #yiv3803517428 -- #yiv3803517428ygrp-mkp {border:1px solid
#d8d8d8;font-family:Arial;margin:10px 0;padding:0 10px;}#yiv3803517428
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Re: [firebird-support] UDF or/and maybe Charset problem
24.08.2017 11:37, Nagy Szilveszter nagy_szilvesz...@yahoo.com [firebird-support] wrote: > result = (char*)calloc(j, sizeof(char)); You must use ib_util_malloc() to allocate memory in UDF and don't forget FREE_IT in declaration to avoid memory leak. -- WBR, SD. ++ Visit http://www.firebirdsql.org and click the Documentation item on the main (top) menu. Try FAQ and other links from the left-side menu there. Also search the knowledgebases at http://www.ibphoenix.com/resources/documents/ ++ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: firebird-support-dig...@yahoogroups.com firebird-support-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: firebird-support-unsubscr...@yahoogroups.com <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/
[firebird-support] UDF or/and maybe Charset problem
Hi,
i have an UDF function that runs perfectly on Linux 64 bit systems. I wanted to
port it to Windows 32 bit, but i'm having problems there.
The UDF was written in C (not C++), compiled on Linux with gcc, everything
works fine.
I compiled the same C file on Windows with MinGW Developer Studio (using MinGW
compiler)
Here is the function with problems (the functions returns the same string but
deletes every non alphanumerical character):
char *strpeel(char *str){
unsigned int i = 0, j = 0;
char *out;
str = strupr(str);
out = (char*)calloc(strlen(str), sizeof(char));
for (i=0; i= 'A' && str[i] <= 'Z') || (str[i] >= '0' && str[i] <=
'9')) {
out[j++] = str[i];
}
}
char * result;
result = (char*)calloc(j, sizeof(char));
strcpy(result, out);
return result;
}
This is the declaration of UDF in Firebird:
DECLARE EXTERNAL FUNCTION STRPEEL
CSTRING(255)
RETURNS CSTRING(255)
ENTRY_POINT 'strpeel' MODULE_NAME 'utils-udf';
When i test this function it runs correctly:
select strpeel('ABC - 123') from rdb$database > returns: 'ABC123'
But when i run it on my PRODUCTS table, there are some rows where this function
crashes:
select product_code, strpeel(product_code) from products
The field PRODUCT_CODE is Varchar(30) charset UTF8 collate UTF8
At row 51 the string must have some invisible characters that makes the UDF to
crash.
The firebird.log says:
The user defined function: STRPEEL
referencing entrypoint: strpeel
in module: utils-udf
caused the fatal exception: Access violation.
The code attempted to access a virtual
address without privilege to do so.
This exception will cause the Firebird server
to terminate abnormally.
Shutting down the server with 2 active connection(s) to 2 database(s), 0
active service(s)
Firebird shutdown is still in progress after the specified timeout
Operating system call ReleaseSemaphore failed. Error code 6
Operating system call ReleaseSemaphore failed. Error code 6
That code in that line is TRX12270
If i run select strpeel('TRX12270') from rdb$database - it works fine
If i copy that string from table and replace the above string then it crashes
again. So there must be something wrong in that field.
Also if i edit the table and rewrite the code then it works fine.
I also checked the characters with ASCII_VAL but i can see nothing strange.
As the UDF, there are 2 memory allocations for strings and no freeing it,
neither FREE_IT was used. I dont know if this is a problem since other strings
work well with this UDF.
Please help me detect and correct this issue!
Thank you!
