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path: root/indra/llcorehttp/_httpservice.cpp
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2013-07-30SH-4371 Reduce 22mS inter-connection latency.Monty Brandenberg
This really extended into the client-side request throttling. Moved this from llmeshrepository (which doesn't really want to do connection management) into llcorehttp. It's now a class option with configurable rate. This still isn't the right thing to do as it creates coupling between viewer and services. When we get to pipelining, this notion becomes invalid.
2013-07-12SH-4312 Configuration data between viewer and llcorehttp is clumsy.Monty Brandenberg
Much improved. Unified the global and class options into a single option list. Implemented static and dynamic setting paths as much as possible. Dynamic path does require packet/RPC but otherwise there's near unification. Dynamic modes can't get values back yet due to the response/notifier scheme but this doesn't bother me. Flatten global and class options into simpler struct-like entities. Setter/getter available on these when needed (external APIs) but code can otherwise fiddle directly when it knows what to do. Much duplicated options/state removed from HttpPolicy. Comments cleaned up. Threads better described and consistently mentioned in API docs. Integration test extended for 503 responses with Reply-After headers.
2013-06-20SH-4257 Preparation for a new cap grant: GetMesh2Monty Brandenberg
Mesh repo is using three policy classes now: one for large objects, one for GetMesh2 regions, one for GetMesh regions. It's also detecting the presence of the cap and using the correct class. Class initialization cleaned up significantly in llappcorehttp using data-directed code. Pulled in the changes to HttpHeader done for sunshine-internal then did a refactoring pass on the header callback which now uses a unified approach to clean up and deliver header information to all interested parties. Added support for using Retry-After header information on 503 retries.
2013-03-29Update Mac and Windows breakpad builds to latestGraham Madarasz
2012-07-23Big comment and naming cleanup. Ready for prime-time.Monty Brandenberg
Add to-do list to _httpinternal.h to guide anyone who wants to pitch in and help.
2012-07-03More integration work for texture fetch timeouts.Monty Brandenberg
The fetch state machine received a new timeout during the WAIT_HTTP_REQ state. For the integration, rather than jump the state to done, we issue a request cancel and let the notification plumbing do the rest without any race conditions or special-case logic.
2012-06-26SH-3184/SH-3221 More work on cleanup with better unit test work and more ↵Monty Brandenberg
aggressive shutdown of a thread. Some additional work let me enable a memory check for the clean shutdown case and generally do a better job on other interfaces. Request queue waiters now awake on shutdown and don't sleep once the queue is turned off. Much better semantically for how this will be used.
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
2012-06-16First round of basic tuning work (shorter sleeps, larger BufferArray blocks).Monty Brandenberg
Beefed up the metrics gathering in http_texture_load to get memory sizes and cpu consumption on windows (still need to implement that on Mac & linux). Ran runs with various idle loops with sleeps from 20 ms down to pure spinning, varied Block allocation size from 1504 to 2^20 bytes. 2ms/2ms/65540 appears to be a good spot under the test conditions (Win7, danu grid, client in Boston).
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).
2012-06-05Faster spin in worker thread when doing I/O and a priority bump needed when ↵Monty Brandenberg
fixing priorities.
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.
2012-04-23Okay, 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.