====== Notes by MC ======

===== Links =====

  * http://doc.cat-v.org/plan_9/4th_edition/papers/compiler
    * ''extern register''
  * [[http://groups.google.com/group/golang-nuts/browse_thread/thread/df8b124cf31e124a|"callbacks" attempts ("Out-of-band callbacks with cgo")]]
    * other [[http://groups.google.com/group/golang-nuts/browse_thread/thread/34d6a5b928242d25/2c786e7691b5bad1?q=#2c786e7691b5bad1|notes]], probably related
    * blog entry [[http://cheesesun.blogspot.com/2010/04/callbacks-in-cgo.html|on cgo callbacks]], dated 24.04.2010.
    * CL 834045 - [[http://codereview.appspot.com/834045|"Library support for cgo export"]].
      * introduces ''startcgocallback()'', ''endcgocallback()'' in ''runtime/proc.c'', ''cgocallback()'' in ''runtime/cgocall.c'', ''runcgocallback()'' in ''runtime/386/asm.s''.
      * (supposedly) related golang-nuts announcement post: [[http://groups.google.com/group/golang-nuts/browse_thread/thread/abd0e30dafdbf297|"cgo callbacks"]]
    * CL 1696051 - [[http://codereview.appspot.com/1696051/|"runtime: implementation of callback functions for windows"]] - not accepted yet
  * ''_beginthread()'' vs. ''CreateThread()'' - [[http://www.codeguru.com/forum/archive/index.php/t-433100.html|a discussion on differences]]

===== Source files =====

  * ''runtime/windows/thread.c''
    * ''syscall(...)''
    * ''stdcall(...)''
    * ''newosproc(...)''
    * ''get_proc_addr(...)'', ''get_proc_addr2(...)''
  * ''runtime/windows/sys.s''
    * ''stdcall_raw(...)''
    * ''get_kernel_module(...)''
  * ''runtime/386/asm.h''
    * ''get_tls(register)''
  * ''runtime/windows/syscall.goc''
    * see also: ''goc2c.c'', ''Makefile''
  * ''runtime/proc.c''
    * ''tracebackothers(...)'', ''entersyscall(...)''
  * ''runtime/cgocall.c''
    * ''cgocall(...)'', ''cgocallback(...)''
  * ''runtime/runtime.h''
    * ''M'', ''G'', ''m'', ''g''

===== Various quotes etc. =====

  * The number of goroutines actively running is the number of ''M'' structures that are running.  Look at ''runtime·sched'' for various useful counts and lists. [[http://groups.google.com/group/golang-nuts/msg/ac6bd8525276e543|(link)]]
  * To find the goroutines that exist, whether or not they are running, start at ''runtime·allg'' and walk through the ''alllink field''.  Don't count the ones whose status field ''== Gdead''. [[http://groups.google.com/group/golang-nuts/msg/ac6bd8525276e543|(link)]]