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path: root/indra/newview/llluamanager.h
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2024-02-23require() code clean-upMnikolenko Productengine
2024-02-20Initial require implementationMnikolenko Productengine
2024-02-07Add LLLUAmanager::startScriptFile(), startScriptLine() functions.Nat Goodspeed
Break out for LLLUAmanager consumers the promise/future semantics of waitScriptFile() and waitScriptLine(). startScriptMumble() uses runScriptMumble() to launch a coroutine to run the specified Lua script or chunk, providing an internal adapter callback to set a promise on completion. It then returns to its caller the future obtained from that promise. This allows a caller to call startScriptMumble(), run in parallel with the Lua coroutine for a while and then call get() on the returned future to wait for results. waitScriptMumble() is then trivially implemented using startScriptMumble(). Fix runScriptLine()'s logic to abbreviate the passed Lua chunk for use as the description. We were erroneously assigning back through a string_view of the parameter, which overwrote a temporary string in the argument list. With Lua 5.4, listen_events() tried to discover the main "thread" (Lua coroutine) associated with the current lua_State so we could call async callbacks on that thread. Luau doesn't seem to provide that feature, so run callbacks on whichever thread calls listen_events(). Reinstate original multi-argument lua_print_msg(), tweaked to avoid the Lua 5.4 lua_rotate() function, which is missing from Luau.
2024-02-07Add machinery to capture result of running a Lua script or snippet.Nat Goodspeed
Add LuaState::expr() that evaluates a Lua snippet and reports back any result (or error) left on the stack. Add LLLUAmanager::runScriptFile() and runScriptLine() overloads that accept a callback with an (int count, LLSD result) signature. The count disambiguates (error, no result, one result, array of results). Also add overloads that accept an existing LuaState instance. Also add waitScriptFile() and waitScriptLine() methods that pause the calling coroutine until the Lua script completes, and return its results. Instead of giving LuaState a description to use for all subsequent checkLua() calls, remove description from its constructor and data members. Move to expr() and checkLua() parameters: we want a description specific to each operation, rather than for the LuaState as a whole. This prepares for persistent LuaState instances. For now, the existing script_finished_fn semantics remain: the callback will be called only when the LuaState is destroyed. This may need to change as we migrate towards longer-lasting LuaState instances. Make lua_function(name) macro append suffixes to the name for both the LuaFunction subclass declaration and the instance declaration. This allows publishing a lua_function() name such as sleep(), which already has a different C++ declaration. Move the Lua sleep() entry point to a standalone lua_function(sleep), instead of a lambda in the body of runScriptFile().
2023-10-02DRTVWR-589: Add initial integration test for LLLUAmanager.Nat Goodspeed
The first test runs a Lua script that calls post_on(), listen_events() and await_event() to engage in LLEventPump handshakes with the test program. Make llluamanager.cpp testable by putting LL_TEST conditionals around lots of viewer-internals headers and the lua_function definitions that engage them. Since LuaListener::connect() is called by its constructor, make it a static method that explicitly accepts the lua_State* (instead of finding it as mState). Add that parameter to its two existing calls. Add a debug log message when LuaListener is destroyed. This surfaced the need to pass a no-op deleter when listen_events() constructs a LuaListener::ptr_t. When compiled for LL_TEST, make LuaListener::mReplyPump an LLEventLogProxyFor<LLEventStream> instead of a plain LLEventStream. For debugging purposes, add a type string "LLEventLogProxy" for LLEventPumps::make(). A make() call with this type will return an LLEventLogProxyFor<LLEventStream>.
2023-09-13autorun selected script after loginMnikolenko Productengine
2023-09-06addcallback to display error msgMnikolenko Productengine
2023-09-05Initial prototype of embedded LUAMnikolenko Productengine