andlabs-ui/link_darwin.go

25 lines
1.1 KiB
Go

// 13 december 2015
package ui
// #cgo LDFLAGS: -L${SRCDIR} -lui -framework CoreFoundation -lpthread
// //TODO -rpath @executable_path
// /* (thanks to http://jorgen.tjer.no/post/2014/05/20/dt-rpath-ld-and-at-rpath-dyld/ for the @executable_path clarifiaction) */
// #include <CoreFoundation/CoreFoundation.h>
// #include <pthread.h>
// extern void _CFRunLoopSetCurrent(CFRunLoopRef);
// extern pthread_t _CFMainPThread;
import "C"
// OS X cares very deeply if we don't run on the very first thread the OS creates
// why? who knows. it's stupid and completely indefensible. let's use undocumented APIs to get around it.
// apple uses them too: http://www.opensource.apple.com/source/kext_tools/kext_tools-19.2/kextd_main.c?txt
// apple HAS SUGGESTED them too: http://lists.apple.com/archives/darwin-development/2002/Sep/msg00250.html
// gstreamer uses them too: http://cgit.freedesktop.org/gstreamer/gst-plugins-good/tree/sys/osxvideo/osxvideosink.m
func ensureMainThread() {
// TODO set to nil like the apple code?
C._CFRunLoopSetCurrent(C.CFRunLoopGetMain())
// TODO is this part necessary?
C._CFMainPThread = C.pthread_self()
}