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path: root/indra/llcorehttp/httprequest.cpp
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2012-07-10SH-3244 Syscall avoidance in HttpRequest::update() methodMonty Brandenberg
Well, achieved that by doing work in bulk when needed. But turned into some additional things. Change timebase from mS to uS as, well, things are headed that way. Implement an HttpReplyQueue::fetchAll method (advertised one, hadn't implemented it).
2012-06-23SH-3184/SH-3221 Improve cleanup, destructor, thread termination, etc. logic ↵Monty Brandenberg
in library. With this commit, the cleanup paths should be production quality. Unit tests have been expanded to include cases requiring thread termination and cleanup by the worker thread. Special operation/request added to support the unit tests. Thread interface expanded to include a very aggressive cancel() method that does not do cleanup but prevents the thread from accessing objects that will be destroyed.
2012-06-22This sets down the groundwork for dynamic policy classes.Monty Brandenberg
Groundwork is used for the default class which currently represents texture fetching. Class options implemented from API user into HttpLibcurl. Policy layer is going to start doing some traffic shaping like work to solve problems with consumer-grade gear. Need to have dynamic aspects to policies and that starts now...
2012-06-21Preparing for better shutdown/cleanup logic.Monty Brandenberg
2012-06-19Cleanup: move magic nubmers to new _httpinternal.h header file.Monty Brandenberg
2012-06-14LLMutex recursive lock, global & per-request tracing, simple GET request, ↵Monty Brandenberg
LLProxy support, HttpOptions starting to work, HTTP resource waiting fixed. Non-LLThread-based threads need to do some registration or LLMutex locks taken out in these threads will not work as expected (SH-3154). We'll get a better solution later, this fixes some things for now. Tracing of operations now supported. Global and per-request (via HttpOptions) tracing levels of [0..3]. The 2 and 3 levels use libcurl's VERBOSE mode combined with CURLOPT_DEBUGFUNCTION to stream high levels of detail into the log. *Very* laggy but useful. Simple GET request supported (no Range: header). Really just a degenrate case of a ranged get but supplied an API anyway. Global option to use the LLProxy interface to setup CURL handles for either socks5 or http proxy usage. This isn't really the most encapsulated way to do this but a better solution will have to come later. The wantHeaders and tracing options are now supported in HttpOptions giving per-request controls. Big refactoring of the HTTP resource waiter in lltexturefetch. What I was doing before wasn't correct. Instead, I'm implementing the resource wait after the Semaphore model (though not using system semaphores). So instead of having a sequence like: SEND_HTTP_REQ -> WAIT_HTTP_RESOURCE -> SEND_HTTP_REQ, we now do WAIT_HTTP_RESOURCE -> WAIT_HTTP_RESOURCE2 (actual wait) -> SEND_HTTP_REQ. Works well but the prioritized filling of the corehttp library needs some performance work later.
2012-06-12HTTP Proxy, PUT & POST, unit tests and refactoring.Monty Brandenberg
Implemented/modified PUT & POST to not used chunked encoding for the request. Made the unit test much happier and probably a better thing for the pipeline. Have a cheesy static & dynamic proxy capability using both local options and a way to wire into LLProxy in llmessages. Not a clean thing but it will get the proxy path working with both socks5 & http proxies. Refactoring to get rid of unneeded library handler and unified an HttpStatus return for all requests. Big batch of code removed as a result of that and more is possible as well as some syscall avoidance with a bit more work. Boosted the unit tests for simple PUT & POST test which revealed the test harness does *not* like chunked encoding so we'll avoid it for now (and don't really need it in any of our schemes).
2012-06-11Convert BufferArray interfaces to void * (not char *). ↵Monty Brandenberg
HttpRequest::update() honor time limit. Generally, opaque data operations are expected to be over 'void *' and have now converted interfaces to do that. Update() method honors millisecond limit to dwell time. Might want to homologate the millis/uSecs mix later....
2012-06-06Policy + caching fixes + https support + POST workingMonty Brandenberg
Implemented first global policy definitions to support SSL CA certificate configuration to support https: operations. Fixed HTTP 206 status handling to match what is currently being done by grid services and to lay a foundation for fixes that will be a response to ER-1824. More libcurl CURLOPT options set on easy handles to do peer verification in the traditional way. HTTP POST working and now reporting asset metrics back to grid for the viewer's asset system. This uses LLSD so that is also showing as compatible with the new library.
2012-06-01Missed two instances of priority typed as 'float'. Became anMonty Brandenberg
excuse to go through an use a typedef for priority and policy class id.
2012-06-01Major steps towards implementing the policy component.Monty Brandenberg
Identified and reacted to the priority inversion problem we have in texturefetch. Includes the introduction of a priority_queue for the requests that are ready. Start some parameterization in anticipation of having policy_class everywhere. Removed _assert.h which isn't really needed in indra codebase. Implemented async setPriority request (which I hope I can get rid of eventually along with all priorities in this library). Converted to using unsigned int for priority rather than float. Implemented POST and did groundwork for PUT.
2012-05-23Integrate llcorehttp library into lltexturefetch design.Monty Brandenberg
This is the first functional viewer pass with the HTTP work of the texture fetch code performed by the llcorehttp library. Not exactly a 'drop-in' replacement but a work-alike with some changes (e.g. handler notification in consumer thread versus responder notification in worker thread). This also includes some temporary changes in the priority scheme to prevent the kind of priority inversion found in VWR-28996. Scheme used here does provide liveness if not optimal responsiveness or order-of-operation. The llcorehttp library at this point is far from optimally performing. Its worker thread is making relatively poor use of cycles it gets and it doesn't idle or sleep intelligently yet. This early integration step helps shake out the interfaces, implementation niceties will be covered soon.
2012-04-23Okay, imported the core-http library and got it compiling suspiciously easily.Monty Brandenberg
The unit/integration tests don't work yet as I'm still battling cmake/autobuild as usual but first milestone passed.