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Crash with 2022 R3 - 22.2.0 Build 3289 at runtime 64-bit with external subroutine
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  1. Pierre DETE
  2. PowerBuilder
  3. Friday, 4 April 2025 07:38 PM UTC

Hello,

Since we migrated to version 22.2.0 Build 3397, we have been experiencing crashes with the famous n_smtp object used for sending emails.

This issue did not occur with version 22.2.0 Build 3289.

The problem only arises with the 64-bit runtime, not with the 32-bit IDE.

I suppose it is in the copymemory declaration, but I am not comfortable with it.

Thank you in advance for your help.

Best regards,

Pierre

 

The PBDEBUG trace end like that : 

          Executing object function OF_GENERATE_GUID for class N_SMTP64, lib entry N_SMTP64
                        Executing object function +CREATE for class UUID, lib entry N_SMTP
                        End object function +CREATE for class UUID, lib entry N_SMTP
                        Executing instruction at line 19
                        Executing class function SPACE for class SYSTEMFUNCTIONS, lib entry _TYPEDEF
                          Executing system dll function
                        End class function SPACE for class SYSTEMFUNCTIONS, lib entry _TYPEDEF
                        Executing instruction at line 20
                        Executing class function SPACE for class SYSTEMFUNCTIONS, lib entry _TYPEDEF
                          Executing system dll function
                        End class function SPACE for class SYSTEMFUNCTIONS, lib entry _TYPEDEF
                        Executing instruction at line 22
                        Executing instruction at line 23
                        Executing object function UUIDCREATESEQUENTIAL for class N_SMTP64, lib entry N_SMTP64
                        End class function UUIDCREATESEQUENTIAL for class N_SMTP64, lib entry N_SMTP64
                        Executing instruction at line 24
                        Executing object function UUIDTOSTRING for class N_SMTP64, lib entry N_SMTP64
                        End class function UUIDTOSTRING for class N_SMTP64, lib entry N_SMTP64
                        Executing instruction at line 25
                        Executing object function COPYMEMORY for class N_SMTP64, lib entry N_SMTP64

The CopyMemory external subroutine is declared like that : 

Subroutine CopyMemory ( &
    Ref string Destination, &
    ulong Source, &
    long Length &
    ) Library  "kernel32.dll" Alias For "RtlMoveMemory"

And the of_generated_guid is : 

// -----------------------------------------------------------------------------
// SCRIPT:     n_smtp.of_Generate_GUID
//
// PURPOSE:    This function is used to generate a GUID.
//
// RETURN:     GUID string
//
// DATE        PROG/ID        DESCRIPTION OF CHANGE / REASON
// ----------  --------        -----------------------------------------------------
// 09/08/2010    RolandS        Initial coding
// -----------------------------------------------------------------------------

UUID lstr_UUID
Constant Long RPC_S_OK = 0
Constant Long SZ_UUID_LEN = 36
ULong lul_ptrUuid
String ls_Uuid

lstr_UUID.Data4 = Blob(Space(8), EncodingAnsi!)
ls_Uuid = Space(SZ_UUID_LEN + 2)

try
    If UuidCreateSequential(lstr_UUID) = RPC_S_OK Then
        If UuidToString(lstr_UUID, lul_ptrUuid) = RPC_S_OK Then
            CopyMemory(ls_Uuid, lul_ptrUuid, SZ_UUID_LEN*2)
            RpcStringFree(lul_ptrUuid)
        End If
    End If
catch (RuntimeError rte)
    PopulateError(rte.Number, rte.Text)
end try

Return Upper(Trim(ls_Uuid))

 

Thank you in advance if you can help me.

Pierre

 

SNC driver PowerBuilder bit data type issues PB 2022R3 error loading client library DLLs. Unable to conne...
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