Difference between revisions of "What's new in 4.5"
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* Stack checking has returned. In a multi-threaded application like AOLserver, stack checking is important for detecting buffer overruns and deep call trees blowing your thread stack, etc. | * Stack checking has returned. In a multi-threaded application like AOLserver, stack checking is important for detecting buffer overruns and deep call trees blowing your thread stack, etc. | ||
* More detailed information when logging uncaught Tcl errors. Especially for connection threads, details of the HTTP request are logged to make diagnosing the root cause of errors easier. | * More detailed information when logging uncaught Tcl errors. Especially for connection threads, details of the HTTP request are logged to make diagnosing the root cause of errors easier. | ||
| + | |||
| + | === Connection Management === | ||
| + | |||
* New '''ns_pools''' command to map method/URL's to specific thread pools. | * New '''ns_pools''' command to map method/URL's to specific thread pools. | ||
* New '''ns_limits''' command control the number of threads executing and/or waiting for execution by method/URL. | * New '''ns_limits''' command control the number of threads executing and/or waiting for execution by method/URL. | ||
| + | |||
| + | === I/O Features === | ||
| + | |||
* New '''Ns_QueueWait''' API to enable event-driven callbacks in the driver thread before dispatching to pools for processing. | * New '''Ns_QueueWait''' API to enable event-driven callbacks in the driver thread before dispatching to pools for processing. | ||
* Added ability to manage larger file uploads by spooling to a temporary file. | * Added ability to manage larger file uploads by spooling to a temporary file. | ||
* Added a new execution caching technique at the '''ns_adp_include''' level which allows you to save the results of execution of an included ADP and includes below that for reuse on subsequent connections up to a specified time. | * Added a new execution caching technique at the '''ns_adp_include''' level which allows you to save the results of execution of an included ADP and includes below that for reuse on subsequent connections up to a specified time. | ||
| + | |||
| + | === ADP Improvements: === | ||
| + | |||
* Added '''singlescript''' config option which turns ADP pages into a single script enabling syntax such as "<% foreach e $list { %> element <%= $e %> here <% } %>". | * Added '''singlescript''' config option which turns ADP pages into a single script enabling syntax such as "<% foreach e $list { %> element <%= $e %> here <% } %>". | ||
* Added output buffer improvements via new Ns_ConnFlush. | * Added output buffer improvements via new Ns_ConnFlush. | ||
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* Added gzip output compression. | * Added gzip output compression. | ||
* Added streaming output in chunked-encoding format instead of the previous "response with no length" HTTP/1.0 method. | * Added streaming output in chunked-encoding format instead of the previous "response with no length" HTTP/1.0 method. | ||
| + | |||
| + | === Tcl Improvements: === | ||
| + | |||
* New '''Ns_TclRegisterTrace''' API to enable callbacks at key state transition points in a much more natural way. The [[ns_ictl]] command has been updated to support script-level traces. | * New '''Ns_TclRegisterTrace''' API to enable callbacks at key state transition points in a much more natural way. The [[ns_ictl]] command has been updated to support script-level traces. | ||
* New '''Ns_Task''' API designed to replace the old Ns_SockCallback API which didn't do a very good job at managing timeouts along with I/O events. | * New '''Ns_Task''' API designed to replace the old Ns_SockCallback API which didn't do a very good job at managing timeouts along with I/O events. | ||
Revision as of 02:35, 22 February 2006
This is a partial list of new features and major changes in AOLserver 4.5 (compared to 4.0). If you know of anything that is missing, please add it.
- Stack checking has returned. In a multi-threaded application like AOLserver, stack checking is important for detecting buffer overruns and deep call trees blowing your thread stack, etc.
- More detailed information when logging uncaught Tcl errors. Especially for connection threads, details of the HTTP request are logged to make diagnosing the root cause of errors easier.
Connection Management
- New ns_pools command to map method/URL's to specific thread pools.
- New ns_limits command control the number of threads executing and/or waiting for execution by method/URL.
I/O Features
- New Ns_QueueWait API to enable event-driven callbacks in the driver thread before dispatching to pools for processing.
- Added ability to manage larger file uploads by spooling to a temporary file.
- Added a new execution caching technique at the ns_adp_include level which allows you to save the results of execution of an included ADP and includes below that for reuse on subsequent connections up to a specified time.
ADP Improvements:
- Added singlescript config option which turns ADP pages into a single script enabling syntax such as "<% foreach e $list { %> element <%= $e %> here <% } %>".
- Added output buffer improvements via new Ns_ConnFlush.
- Added automatic UTF-8 to output charset encoding.
- Added gzip output compression.
- Added streaming output in chunked-encoding format instead of the previous "response with no length" HTTP/1.0 method.
Tcl Improvements:
- New Ns_TclRegisterTrace API to enable callbacks at key state transition points in a much more natural way. The ns_ictl command has been updated to support script-level traces.
- New Ns_Task API designed to replace the old Ns_SockCallback API which didn't do a very good job at managing timeouts along with I/O events.
