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shared pointers. Removed direct cast and dereference of handles.
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and use it for existing LLSomeClass::cleanupClass() calls.
This logs the fact of making the call, as well as making it.
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failures.
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Added toTerseString() conversion on HttpStatus to generate a string
that's more descriptive than the hex value of the HttpStatus value
but still forms a short, searchable token (e.g. "Http_503" or
"Core_7"). Using this throughout the viewer now, no live cases
of toHex(), I believe.
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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.
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HttpStatus unit tests have never caused a unit test failure but
they do have the word 'error' in their text descriptions which
gets picked up by the log processor in TC builds. So, reactivate
the tests and reform the descriptions.
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I'm calling this the more correct fix. The httprequest tests
actually talk to an HTTP server running in the Python test
scaffold script. Under severe CPU competition, it may not
get the cycles needed to start up and make progress. So this
modifies the test to spin a little faster and dwell waiting
on the server for a longer period. Hope this will be
adequate to make the tests reliable.
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library has new exception-throwing behavior when a client disconnects
unannounced. Generally ignore exceptions as a result as we don't
care about the server side. On HTTP trace-mode tests, spin a little
faster and longer to give libcurl time to emit all the junk it wants
to send us. Should reduce 'reasonable time' failures on tests <12>
and <13>.
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Not certain what the source of the short data is with one resident but I'm
going to make these problems retryable as they are transport-related. Lift
the retry detection into a method that should be reusable by others interested
in determining what is retryable. Trace output handling on the libcurl debug
callback was attrocious. Some unsafe length handling on my part was protected
by a second layer of defense. Made that correct and more useful by logging
actual data sizes during trace.
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Content-Range
Don't rely on a response body being present should a
Content-Range header be parsed. Unit tests captured
the original crash and confirm the fix.
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Header container moves from a vector of raw lines to a vector
of string pairs representing name/value pairs in headers. For
incoming headers, we normalize the name to lowercase and trim
it. Values are only left-trimmed. Outgoing headers are left
as-is. Simple find() method for the common case, forward and
reverse iterators for those few who need to do it themselves.
The HTTP status line (e.g. 'HTTP/1.1 200 Ok') is no longer treated
as a header to be returned to caller. Unit tests, as usual,
were a bear but they absolutely ensured outgoing HTTP header
conformance after the change. Grunt work paid off.
LLTextureFetch was also given a second options structure
for texture fetches. Same as the original but with header return
to caller requested. Baked textures should use this, the other
20,000 texture fetch requests should continue to use the original.
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Cmake files not merged correctly and had to be done by hand. New memory
allocation made some memory usage tests in the llcorehttp integration
tests no longer valid. Would like to work on LLLog sometime and get
it to be consistent. Special flags needed for windows build of example
program.
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Define expectations for headers for GET, POST, PUT requests.
Document those in the interface, test those with integration tests.
Verify that header overrides work as expected.
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When releasing HTTP waiters, avoid unnecessary sort activity.
For Content-Type in responses, let libcurl do the work and removed
my parsing of headers. Drop Content-Encoding as libcurl will deal
with that. If anyone is interested, they can parse.
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First round of integration tests. Added a request header 'reflector'
to the web server to sent the client's headers back with a 'X-Reflect-'
prefix. Use boost::regex to check various headers. Run a test on
a simple GET and a byte-ranged GET a la texture fetch.
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Using http_texture_load as the test subject, library looks clean. Did
some better shutdown in the program itself and it looks better. Libcurl
itself is making a lot of noise. Adapted testrunner to run valgrind as
well but the memory allocation tester in the tools themselves grossly
interferes with Valgrind operations.
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HttpResponse object now has two strings for these content headers.
Either or both may be empty. Tidied up the cross-platform string
code and got more defensive about the length of a header line.
Integration test for the new response object.
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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).
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30-second hang doesn't break subsequent tests. Did this by
introducing threads into the HTTP server as I can't find the magic
to detect that my client has gone away.
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Big delta was converting the new texture debugger support code
to the new library. Viewer manifest should probably get an eyeball
before release.
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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.
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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.
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Seems to be working correctly. Not certain this is the fastest possible way
to provide a std::streambuf interface but it's visually acceptable.
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Initial version that should have enough of the plumbing to produce
a working adapter. Memory test is showing 8 bytes held after one
of the tests so I'm going to revisit that later. But basic
functionality is there going by the unit tests.
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Only thing interesting in this changeset is the discovery that a sleep
in the fake HTTP server ties up tests. Need to thread that or fail on
client disconnect or something to speed that up and make it usable for
bigger test scenarios. But good enough for now...
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Pretty straightforward. Still don't like how I'm managing
the options block. Struct? Accessors? Can't decide. But
the options now speed up the unit test runs even as I add
tests.
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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.
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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).
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This brings in a copy of llmessage's llsdmessage testing server. We run
a mocked HTTP service to handle requests and the integration tests run
against it by picking up the LL_TEST_PORT environment variable when running.
Add some checks and output to produce useful info when run in the wrong
environment and when bad status is received. Later will add a dead port
as well so we can test that rather than use 'localhost:2'.
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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....
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cleanup.
Our logging holds on to a changing bit of memory between operations and the memory
leak detection I'm using senses this and complains. So, for now, disable the
final memory check on Mac & Linux, leave it active on Windows. Solve this for
real some other day. Add try/catch blocks to do cleanup in unit tests that go
wrong so that we don't get a cascade of assertion failures when subsequent tests
find singletons still alive.
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surprised me. Added a retry queue similar to ready queue to the
policy object which is sorted by retry time. Currently do five
retries (after the initial try) delayed by .25, .5, 1, 2 and 5
seconds. Removed the retry logic from the lltexturefetch module.
Upped the waiting time in the unit test for the retries. People
won't like this but tough, need tests.
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