3 Commits

Author	SHA1	Message	Date
John Cupitt	976db37f84	Revised threading system (#3105) ... * reimplement threadpool just a set of threads that get recycled "ninja test" passes and dzsave seems to work, though pytest fails for some reason * clean up threading code a bit move base stuff into thread.c, so we have a simple thread -> threadset -> threadpool layering * start trying to revert g_threadpool based on the original commit * working! nice low systime again still need to repply cnages to threadpool.c since 80e0cc3d1 * reapply fixes from master so threadpool.c is now up to date * rename VipsThread as VipsWorker a bit less confusing * use a semaphore to count workers in a pool * tidy up * formatting * dynamic threadpool sizing based on counting the number of blocked threads in each pool it works, but the improvement is not great :( * add "concurrency" metadata item so operators can hint threadpool size (dzsave especially) * don't use thinstrip for small images * add RGB mode to openslide since flatten was taking 20% of CPU time for dzsave * fix up rgb mode now actually works * make the tile buffer per thread in the new openslideload rgb mode * fix dynamic pool downsize * mild refactoring * fix the buffer system oops, turned it off by mistake * all done! * revise changelog * Update libvips/iofuncs/threadset.c Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl> * Update libvips/iofuncs/threadset.c Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl> * LSan: add libMagickCore to suppression file * Revert "Remove mutex lock for VipsThreadStartFn" This reverts commit 41440491. * add VIPS_MAX_THREADS to set a hard limit on the threadset size * Revert "Revert "Remove mutex lock for VipsThreadStartFn"" This reverts commit 77e8520966ba79194fff3b4e648bbd295cd5c260. * remove sslock from sink.c * move fixed threadpool build to init not first use * add some doc comments * revert test suite threshold change * add a test for MAX_THREADS and move the test tmp/ area into the builddir * limit VIPS_MAX_THREADS to sane values * use tabs rather than spaces Co-authored-by: Kleis Auke Wolthuizen <github@kleisauke.nl>	2022-10-26 15:25:19 +01:00
Kleis Auke Wolthuizen	07edfe37b1	Improve symbol visibility (#2688) ... * Improve symbol visibility * Decorate required internal symbols with VIPS_API * Remove a couple of stray header decls * Incorporate review comment - Ensure symbol visibility is also set on static libraries. - Prefer to use `cc.has_function_attribute('visibility:hidden')`. * Don't export internal deprecated symbols * Move deprecated symbols to vips7compat.h * `IM_FORMAT_H` -> `VIPS_FORMAT_H` * Move `vips_window_ref` compat stub to `vips7compat.c` * Disable deprecation warnings internally * `vips_image_get_kill` -> `vips_image_iskilled` * Ensure API compatibility * Add missing include directives * Move `vips__init` decl to vips7compat * Move `vips__get_sizeof_vipsobject` to vips7compat * Fix introspection build * Fix 2 introspection warnings * Ensure compatibility with vipsdisp /usr/bin/ld: tilesource.o: in function `tile_source_new_from_source': vipsdisp/tilesource.c:1627: undefined reference to `vips__region_no_ownership'	2022-04-16 10:58:55 +01:00
Corentin Noël	02901436d4	Add meson build system (#2637) ... Allows to use the Meson build system to build the project.	2022-02-08 15:19:36 +00:00