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Author SHA1 Message Date
David Chisnall
e371edf11e Attempt at an Apple PAL. 
Totally untested, but now we have macOS CI we can test there...
 2019-02-25 12:54:16 +00:00
David Chisnall
aab4de7bc9 First attempt at adding macOS to CI. 2019-02-25 12:54:16 +00:00
David Chisnall
6a5359b177 Pull aligned allocation out of the PAL. 
The PAL can now advertise that it supports aligned allocation.  If it
does not, then the memory provider will do the alignment for it.

This change still leaves the PAL responsible for systematic testing, but
it should now be much easier to lift that out.
 2019-02-25 12:54:16 +00:00
David Chisnall
d6e89b7c60 Fix Matt's code review comments. 2019-02-25 11:27:53 +00:00
David Chisnall
01bd77b356 Remove some ugly templated things. 
Replace them with some very simple constexpr things.  This is what the
code used to look like, but it appears that I fundamentally
misunderstood why it didn't work.  This version should be a lot more
maintainable.
 2019-02-25 11:27:53 +00:00
David Chisnall
f178028640 [NFC] clang-format again. 
It appears that clang-format 6 (which CI uses) removes a newline that
clang-format 7 doesn't, but will also not add.  The new formatting
should keep 6 and 7 both happy.
 2019-02-25 11:27:53 +00:00
David Chisnall
4036e54879 [NFC] clang-format. 2019-02-25 11:27:53 +00:00
David Chisnall
1892538ad1 Clean up PAL feature detection API. 2019-02-25 11:27:53 +00:00
David Chisnall
5adba34d60 Make clang happy. 2019-02-25 11:27:53 +00:00
David Chisnall
a24e6270cc Provide a generic PAL feature detection mechanism. 
We can support up to 64 optional features, currently only one is used.
 2019-02-25 11:27:53 +00:00
David Chisnall
80630a359f Clean up interface to the low memory notifications. 
- Rename MemoryProviderState to PAL to reflect what is now is.
 - Hide calls to the PAL's low memory functions behind something that
   returns a default value if they're not implemented.
 2019-02-25 11:27:53 +00:00
David Chisnall
e2a12802d5 Hide the low memory notification PAL code. 2019-02-25 11:27:53 +00:00
David Chisnall
f6349092c9 Remove debugging define. 
This was enabled so CI would run it.  It probably should be enabled for
some testing, but via CMake, not like this.
 2019-02-25 11:27:53 +00:00
David Chisnall
6af4c97726 Explicitly qualify a method. 
Either clang or cl has a bug: cl accepts the unqualified (inherited)
method name, clang rejects it.  Both accept the qualified name.
 2019-02-25 11:27:53 +00:00
David Chisnall
71cfb6da1e [NFC] clangformat 2019-02-25 11:27:53 +00:00
David Chisnall
e5d330ec7a Fix the tests. 2019-02-25 11:27:53 +00:00
David Chisnall
66cec23b23 Initial cut at a lazy decommit strategy. 
This does not deallocate memory until the OS tells us that we are short
on memory, then tries to decommit all of the cached chunks (except for
the first page, used for the linked lists).

Nowhere near enough testing to commit to master yet!
 2019-02-25 11:27:53 +00:00
Matthew Parkinson
7a9ce97166 Clangformat 2019-02-20 17:36:39 +01:00
Matthew Parkinson
9104f81285 Remove Undefined preprocessor behaviour 2019-02-20 17:36:39 +01:00
Matthew Parkinson
98dd9573c7 Fix ifdef 2019-02-20 17:36:39 +01:00
David Chisnall
4830bd4021 Check for an SDK version before enabling VirtualAlloc2. 
This is mainly to keep the CI system happy: it's using an old SDK
because the new version of cl.exe doesn't work with cmake...
 2019-02-20 17:36:39 +01:00
David Chisnall
2ee3ba59ee Use VirtualAlloc2 on Windows. 
The newer API (Windows 10 and newer) allows the allocator to ask for
strongly aligned memory.

This is enabled only if the `WINVER` macro is set to target Windows 10
or newer.  There is now a CMake option to target older versions of
Windows, so we can test both code paths.

The Azure Pipelines config now includes a test of the compatibility
version.  This runs only the release build, because it's mainly there as
a sanity check - 99% of the code is the same as the default Windows
config.
 2019-02-20 17:36:39 +01:00
Matthew Parkinson
6ec84856df Merge pull request #28 from Microsoft/mpscq 
Updated to match documentation.
 2019-02-19 16:22:00 +00:00
Matthew Parkinson
9940fbd363 Fixed typo. 2019-02-19 15:44:23 +00:00
Matthew Parkinson
d588e8ecb1 Updated to match documentation. 2019-02-19 15:00:55 +00:00
Matthew Parkinson
ccccd686fb Merge pull request #16 from Microsoft/Sizeclass 
Simplified sizeclass calculations and added tests.
 2019-02-19 13:07:08 +00:00
Matthew Parkinson
aac2b9212e Merge pull request #21 from plietar/smart-next 
Place the next pointer at a different place on every object.
 2019-02-19 09:04:23 +00:00
Paul Liétar
ffe496dd18 Address review comments. 2019-02-18 21:29:32 +00:00
Paul Liétar
66400af419 Add a cache-friendly version of the tests. 
This only tests CACHE_FRIENDLY_OFFSET=64, which is probably what we'll be using in the end.
 2019-02-18 14:51:04 +00:00
Paul Liétar
4ac3421487 Place the next pointer at a different place on every object. 
This limits the collision in cache buckets, especially for larger objects.
 2019-02-18 14:22:50 +00:00
David Chisnall
c47eed1922 Tweaks to end bounds checking. 
Introduce a `OnePastEnd` option for the pointer immediately after the
end of the allocation.  This simplifies some of the logic in callers,
where they wants to say 'is base + length safe to use?'.

Also restructure some of the other logic somewhat.
 2019-02-15 20:05:00 +01:00
Theo Butler
9a6b0aef1f Merge pull request #23 from Microsoft/comment 
Fix comment to represent current PAL API.
 2019-02-15 13:42:59 -05:00
Matthew Parkinson
5e149b083f One more constexpr 2019-02-15 17:43:27 +00:00
Matthew Parkinson
8698f87018 Added some constexpr to some ifs. 2019-02-15 16:12:38 +00:00
Matthew Parkinson
c02077a06a Bug fix in umul code for 32-bit Win 2019-02-15 14:36:47 +00:00
Matthew Parkinson
e7d90966f6 Made the malloc tests run on Windows 2019-02-15 14:36:47 +00:00
Matthew Parkinson
ac8e5e4e5b Fix comment to represent current PAL API. 2019-02-15 09:24:01 +00:00
Matthew Parkinson
bf58015c25 Merge pull request #20 from Theodus/malloc-tests 
Add malloc tests
 2019-02-15 09:12:07 +00:00
Theo Butler
a3fb2b9531 cleanup some tests 2019-02-14 22:31:45 -05:00
Theo Butler
d2909eed0a Merge branch 'master' into malloc-tests 2019-02-14 22:30:48 -05:00
Theo Butler
90414f82f6 Merge pull request #22 from Microsoft/zero_bug 
Pal zero bug alignment
 2019-02-14 22:26:18 -05:00
Matthew Parkinson
adeecfb0f1 Added bug fix to alignment of using. 2019-02-14 20:08:04 +00:00
Matthew Parkinson
8b9a525500 Added zero test at threshold. 2019-02-14 19:59:36 +00:00
Theo Butler
c555bf7218 fix doc comments for notify_using 2019-02-13 17:15:06 -05:00
Matthew Parkinson
35803305f2 Merge pull request #19 from plietar/visibility 
Make internal symbols hidden.
 2019-02-13 21:50:00 +00:00
Theo Butler
057595a57e remove -1 check in calloc 2019-02-13 16:03:38 -05:00
Theo Butler
942313fec7 replace asserts with abort 2019-02-13 10:03:41 -05:00
Theo Butler
24ba068dce remove randomness from malloc tests 2019-02-13 08:42:51 -05:00
Theo Butler
0ff2301083 use malloc shim in malloc tests 2019-02-13 08:12:07 -05:00
Theo Butler
e42551bb15 only build malloc tests on POSIX platforms 2019-02-12 22:05:36 -05:00