Commit Graph

5 Commits

Author SHA1 Message Date
vfrinken
b1f45f2748
RefC backend improvements (#2425)
* RefC backend improvements

1. OnCollect had the wrong number of arguments. The code creator expects
   3 arguments, but onCollect in prim.h expected 4 arguments. The first of which
   was an erased arguments. That is now fixed.

2. OnCollect did not call `newReference` when creating a new reference to the pointer
   and the freeing function

3. OnCollect and OnCollectAny still had a spurious printf statement

Those issues have been fixed, the test case can be found in
  tests/refc/garbageCollect

4. The IORef mechanism expects that the %World token will be passed around
   consistently. This is not the case. States in Control.App make use of
   IORefs, but the function created from Control.App.prim_app_bind
   had the world token erased to NULL.
   Now, IORefs are managed using a global variable,
   IORef_Storage * global_IORef_Storage;
   referenced in cBackend.h, defined in the created .c file, and set to NULL
   in main();

5. While multithreading and forking is still not supported, compiling a program
   that makes use of Control.App demands a C implementation of prim_fork.
   Files support/refc/threads.c and support/refc/threads.h provide a
   dummy implementation for it, so that Control.App programs compile and run.

A test for these 2 issues is given in tests/refc/issue2424

* format changes

to make the linter happy

* format changes

to make the linter happy

* format changes

to make the linter happy

* spelling mistake braket -> bracket

Co-authored-by: Volkmar Frinken <volkmar@onutechnology.com>
2022-04-27 13:59:32 +01:00
Stiopa Koltsov
60d597fccd Use pragma once instead of include guard
Pragma once is supported by all compilers for the last ten years.
Better use it instead of include guards (which use different styles
in different files).
2021-06-28 12:05:22 +01:00
Robert Wright
d202139171 Distinguish common C and RefC Buffer functions 2021-06-14 15:06:44 +01:00
Robert Wright
f3aae06b28 Add RefC Clock support 2021-05-20 14:25:16 +01:00
Edwin Brady
a76a1322eb Initial merge of reference counting C back end
Written by Volkmar Frinken (@vfrinken). This is intended as a
lightweight (i.e. minimal dependencies) code generator that can be
ported to multiple platforms, especially those with memory constraints.

It shouldn't be expected to be anywhere near as fast as the Scheme back
end, for lots of reasons. The main goal is portability.
2020-10-11 15:05:00 +01:00