libreoffice/static/emscripten/environment.js

if (!('preRun' in Module)) Module['preRun'] = [];
Module.preRun.push(function() {
    ENV.MAX_CONCURRENCY = '4';
});
Module.ignoreApplicationExit = true;
WASM gbuild: add --pre-js dependencies Currently includes environment.js for general environment settings and soffice_args.js for soffice command line flags. Change-Id: I1166c5a9ae53c56a69b9223c865b4df525d07450 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128590 Tested-by: Jenkins Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de> 2021-10-02 23:57:44 +02:00			`if (!('preRun' in Module)) Module['preRun'] = [];`
			`Module.preRun.push(function() {`
Adapt comphelper::ThreadPool to Emscripten's threading needs ...by keeping the worker threads around by default instead of joining and later re-spawning them; see 5b1df7709d75c6dd993da5a272e7e37e55a70174 "Document the Emscripten threads issue". But lets be cautious and change the bJoin default only for Emscripten. Also, cap the thread pool size to MAX_CONCURRENCY=4 and increase to -sPTHREAD_POOL_SIZE=6. In an experimental setup where the Emscripten build starts up with the start center rather than a Writer document, that is just enough to cover the thread-spawning needs when executing the start center window's paint task: Four threads for the comphelper::ThreadPool (used from within drawinglayer::convertToBitmapEx -> ... -> BitmapBasicMorphologyFilter::filter), and one each for configmgr::Components::WriteThread (see e8358d0a0f7c2c4b1ccf800fe9ec8a7f2bf7066a "Keep around a single configmgr::Components::WriteThread instance") and salhelper::TimerManager. Change-Id: I5b1d0e9dc09f05fb3b679c8dc1c38ee45c61c0f8 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171004 Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de> Tested-by: Jenkins 2024-07-25 10:51:16 +02:00			`ENV.MAX_CONCURRENCY = '4';`
WASM gbuild: add --pre-js dependencies Currently includes environment.js for general environment settings and soffice_args.js for soffice command line flags. Change-Id: I1166c5a9ae53c56a69b9223c865b4df525d07450 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128590 Tested-by: Jenkins Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de> 2021-10-02 23:57:44 +02:00			`});`
Emscripten: Move the Qt event loop off the JS main thread ...so that spawning and joining new threads works now and we no longer need a hardcoded -sPTHREAD_POOL_SIZE of pre-spawned threads (see b84ef4d67eaf9f9fd7fd700ca05339cb0cdff742 "Adapt comphelper::ThreadPool to Emscripten's threading needs"; lets keep MAX_CONCURRENCY capped at 4, at least for now, though). This requires <https://github.com/allotropia/qtbase/commit/167b08844df06e3cea85c98161b26e97442ab242> "Minimal support for Emscripten -sPROXY_TO_PTHREAD=1" and <https://github.com/allotropia/qtbase/commit/c722a25630a5390f18a4d974aa942f6376fcb8e1> "Implement QWasmCursor::changeCursor for Emscripten PROXY_TO_PTHREAD case" (see TODOs there). Change-Id: I8cea827bd7786e3c9fd9401b4b2bef9d3ec00d5a Reviewed-on: https://gerrit.libreoffice.org/c/core/+/171758 Reviewed-by: Stephan Bergmann <stephan.bergmann@allotropia.de> Tested-by: Jenkins 2024-08-12 13:04:48 +02:00			`Module.ignoreApplicationExit = true;`