: Ensure your code explicitly calls HDisconnect() or HClose("*") before attempting operations that require exclusive rights.
Build a "Maintenance Flag" into your database. Before performing index repairs or structure updates, have the application check this flag and prevent users from logging in.
The most frequent culprit is a simple programming oversight. A user fetches a record using HReadFirst or HReadSeekFirst with a write lock ( hLockWrite ), performs an operation, but the application never calls HUnlockRec or moves off the record. 2. Ghost Connections on HFSQL Server windev 25 dump exclusive
This article explores the "Dump Exclusive" (or dbgSaveDebugDump ) feature in WinDev 25, explaining how it enables developers to generate actionable .wdump files that reveal the call stack, variable content, and full runtime context, ultimately speeding up the resolution of complex bugs. What is Windev 25 Dump Exclusive?
An typically indicates a severe database conflict or memory allocation failure. This occurs when a thread or runtime instruction attempts to isolate a resource while another routine locks it exclusively. : Ensure your code explicitly calls HDisconnect() or
WinDev 25 had several updates during its lifecycle. Ensure your HFSQL Client/Server engine version matches or exceeds your framework version to avoid known locking bugs. Conclusion
Is this error happening during or in a live production environment ? The most frequent culprit is a simple programming oversight
Never run an exclusive dump programmatically without checking the time.
: Suggestions for improving application performance. Report Editor Improvements in Version 25
Load the dump file into a tool like or a hex editor (e.g., HxD ).
Using API or CallDLL32 with incorrect parameter types (e.g., passing a 32-bit integer instead of a 64-bit pointer) causes immediate memory access violations.