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# CppCMS 1.1.0 - Next Release |
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## Implementing UDP Support for `booster::aio::socket` |
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Booster.Aio socket supports well stream sockets but |
has very poor (if any) support of data-gram sockets. |
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You can open them, use them but there is no such operations |
like `sendto` or `recvfrom` that are data-gram oriented. |
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Add their implementation to Booster in analogy to |
implementations of async/sync read/write operations. |
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## Add Support of multiple event loops |
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Today, asynchronous applications do not scale |
well on multiple CPU systems. |
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Required add support of multiple event loops |
so different asynchronous applications would |
be able to use them. |
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## Implement Virtual Hosts support |
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Required for embedded environments |
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## Provide Plugin Framework |
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Allow applications and other tools be loaded dynamically. |
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## Implement Pre-Upload file validation, Upload file meter support |
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In CppCMS application is created only once the request |
is fully ready. And after that use can validate |
the uploaded files. |
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This is quite bad in case of big ones. |
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Possible solution is store the validation requirements |
in the session and let `cppcms::impl::cgi_api` |
fetch this session data and use rules to validate |
uploaded files. |
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Problems: |
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- Session fetch may be not so cheap, it may be done over network or require DB access. |
- Session API allows only synchronous requests. |
- File uploading is done in even loop where all operations |
should be non-blocking. |
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Possible solutions: |
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- Store this data in signed cookies. |
- Add asynchronous api to sessions. |
- Send session fetch to thread pool till and get |
session data this way. |
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## Boost to Booster tasks |
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- Extract/Reimplement `boost::bind` in Booster. |
- Extract/Reimplement `boost::unordered` in Booster. |
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Try to get rid of cppcms\_boost? |
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## Cache contension |
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When an entry is invalidated many requests |
may try to generate it and create significant load. |
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Solution, delay "fetch" if some other fetching. |
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## Improve Support of RESTful services |
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Provide friendly API for RESTful applications in similar |
way it is done today for JSON-RPC |
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# CppCMS 1.3.0 and later |
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## Implement SSL socket for `booster::aio` |
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Implementation of SSL socked need for next requirement |
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## Booster.Filesystem |
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Implement Directory Iterator. |
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## Implement Locale sensitive Date-Time Form Widgets |
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ICU provides good features for parsing and formatting |
dates and times, implement Date-Time Widget |
for this purpose. |
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It is not so-straightforward as user should know the |
format he/she enters the data, such information |
is not supplied by any existing widgets. |
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Think what to do in case of no-icu builds. |
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## Implement Active Cache invalidation |
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Distributed Cache system implements L1/L2 cache |
allowing a cache client to check if the data is |
has is still up-to-date without reading it back. |
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However each access to cache still require TCP-ping-pong. |
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So instead active cache invalidation may be done: when |
trigger is risen or new data is stored a sort of |
a message that causes all clients to drop invalid |
cache is broad-casted. |
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Need to be implemented. |
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## Replace LRU with 2Q scan resistant algorithm |
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Check possibility of changing this. |
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## Improve Support of RESTful services |
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Provide friendly API for RESTful applications in similar |
way it is done today for JSON-RPC |
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## Provide WebSockets support |
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Implement Web Sockets support and transparent |
fallback to some long-polling based protocol |
comet |
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## Degraded Mode of work |
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Problem: |
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What happens when one of cache/session servers fails? |
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Solution: |
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Provide automatic servers fail-detection procedures and continue to work in degraded mode. |
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## Implement Connection Forwarding over unix-sockets |
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CppCMS forwarding framework allows to forward any connection |
to other network node over SCGI API. |
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Is is very useful to be able to forward connections |
between forked processes of same application. |
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It can be done in much cheaper between forked processes |
by forwarding a file descriptor over Unix domain socket and |
passing already read information via shared memory. |
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## Implement HTTPS support |
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Embedded web server should support HTTPS to make |
it even more usable for embedded enviroments |
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