Age | Commit message (Collapse) | Author |
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The updater is required to survive beyond termination of the viewer that
launched it so it can launch the next installer, or a replacement viewer.
Having the old viewer forcibly terminate it on shutdown would be counter-
productive.
Introduce a third LLLeap::create() overload taking LLProcess::Params, which
gives access to autokill, cwd and other options previously unsupported by
LLLeap. Reimplement the existing create() overloads in terms of this new one,
since LLLeapImpl::LLLeapImpl() is already based on LLProcess::Params anyway.
Use LLProcess::Params in LLAppViewer::init() to specify the updater process,
setting autokill=false.
Refactoring LLLeapImpl() apparently involved engaging an LLInitParam::Block
feature never before used: had to drag operator() into Multiple from its base
class TypedParam (as has been done in other TypedParam subclasses).
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A level of preprocessor indirection lets us later change the implementation if
desired.
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This also introduces LLContinueError for exceptions which should interrupt
some part of viewer processing (e.g. the current coroutine) but should attempt
to let the viewer session proceed.
Derive all existing viewer exception classes from LLException rather than from
std::runtime_error or std::logic_error.
Use BOOST_THROW_EXCEPTION() rather than plain 'throw' to enrich the thrown
exception with source file, line number and containing function.
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improved unit tests for LLUnit
renamed LLUnit to LLUnitImplicit with LLUnit being reserved for
explicit units
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Every LEAP plugin gets its own LLLeapListener, managing its own collection of
listeners to various LLEventPumps. LLLeapListener's command LLEventPump now
has a UUID for a name, both for uniqueness and to make it tough for a plugin
to mess with any other.
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Have to pump "mainloop" a few times to flush the buffer to the pipe, a
potentially risky strategy: we have to trust that whatever condition led to
the LL_ERRS fatal error didn't break anything that listens on "mainloop". But
the worst that could happen is that the plugin won't be notified -- just as if
we didn't try in the first place. In other words, no harm in trying.
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While debugging mysterious problem on Windows, one potential failure mode to
rule out was the possibility that streaming std::ostringstream <<
LLSDNotationStreamer(large_LLSD) might itself cause trouble -- even before
attempting to write to the LLProcess::WritePipe. The debugging code validated
that the correct length is being reported, and that deserializing the
resulting buffer produces equivalent LLSD. This code verified correct
operation, and so has been disabled, as it's expensive at runtime.
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The code was using LLProcess::ReadPipe::get_istream().read(), but that's much
uglier, as it requires constructing a char* buffer etc. etc.
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Instantiating LLLeap with a command to execute a particular child process sets
up machinery to speak LLSD Event API Plugin protocol with that child process.
LLLeap is an LLInstanceTracker subclass, so the code that instantiates need
not hold the pointer. LLLeap monitors child-process termination and deletes
itself when done.
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