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b5bc09ced3e1fa4ecb873a80ef51c86320e7fc83
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Author SHA1 Message Date
David Chisnall
b5bc09ced3 Add some more checkers. 
Change the result of `operator=` on `Mod` to return `Mod&`.  In this
example:

```c++
Mod<4, int> a;
int b = (a = 8);
```

The value of `b` will now be 0, not 8, and will equal the value of `a`.
Hopefully this is less confusing to users of this class.
 2019-04-29 15:14:43 +01:00
David Chisnall
22d33ebf99 Add another checker. 
Use nullptr where appropriate.
 2019-04-29 15:00:25 +01:00
David Chisnall
c3c71afa57 Move pagemap to using InvalidPointer. 
Replace a constant `uintptr_t` value of 1 that was repeatedly cast to a
pointer with an `InvalidPointer<1>`.
 2019-04-29 13:46:57 +01:00
David Chisnall
28fac4d700 Fix the remaining clang-tidy warnings. 
This introduces a new `address_t` type and two new casts: `pointer_cast`
and `address_cast` for casting between an `address_t` and a pointer.
These should make it easier to audit the codebase for casts between
pointers and integers.  In particular, the remaining `reinterpret_cast`s
and `pointer_cast`s should be the only places where we could perform
invalid pointer arithmetic.

Also adds a `pointer_offset` helper that adds an offset (in bytes) to a
pointer, preserving its original type.  This is a sufficiently common
pattern that it seemed worthwhile to centralise it.
 2019-04-29 13:37:05 +01:00
David Chisnall
4bafca9be7 [NFC] Automatic fixes from clang-tidy. 2019-04-29 11:33:07 +01:00
David Chisnall
e6325e5cd2 Add a clang-tidy config file. 
Small set of checks for now, we can add to this over time.
 2019-04-29 11:30:23 +01:00
David Chisnall
365571b2b8 Add an explicit invalid pointer type. 
This is a generalisation of `std::nullptr_t` that allows non-0 values of
pointer-sized-but-not-a-pointer thing.  `DLList` now takes an
`InvalidPointer`, `nullptr_t`, or some other compatible class as a
sentinel value instead of a `uintptr_t`.
 2019-04-29 11:22:40 +01:00
Matthew Parkinson
4a0299ec77 Clang format 2019-04-29 11:02:47 +01:00
Matthew Parkinson
f1835813bd uintptr_max instead of -1/~0 2019-04-29 11:02:47 +01:00
Matthew Parkinson
c471e1a271 CR 2019-04-29 11:02:47 +01:00
Matthew Parkinson
8eb6e36966 Add comment about min/max. 2019-04-29 11:02:47 +01:00
Matthew Parkinson
70e2fcf26f Fix 32bit build 2019-04-29 11:02:47 +01:00
Matthew Parkinson
5030fff9bd Missing include from test. 2019-04-29 11:02:47 +01:00
Matthew Parkinson
f1a26db8e5 Missing externs 2019-04-29 11:02:47 +01:00
Matthew Parkinson
37afe9d079 Clang format 2019-04-29 11:02:47 +01:00
Matthew Parkinson
f88bcdbf58 Made alloc_chunk typed 
Alloc_chunk now allocates and calls the constructor.
 2019-04-29 11:02:47 +01:00
Matthew Parkinson
2d831920ea Factored casting in external pointer calculation 2019-04-29 11:02:47 +01:00
Matthew Parkinson
a8618b0892 Use uintptr_t in signature for pagemap 
We don't follow the pointers passed into the pagemap directly, but
instead use them to calculate indexs into the pagemap.  Use uintptr_t
means it is easier to perform address arithmetic, and not have casts
back to void* everywhere.
 2019-04-29 11:02:47 +01:00
Matthew Parkinson
47428a096c Removing some casts and uses of void* 2019-04-29 11:02:47 +01:00
Matthew Parkinson
2c613b4f8a Factored casts out of DLL/mpmcstack/mpscq. 
Nicer use of decltype to constrain instances.

Made a terminator method, to factor out casts.
 2019-04-29 11:02:47 +01:00
Matthew Parkinson
4faf9f3bee Use fewer header files 
Removing some includes to reduce the code that is dragged in.
 2019-04-29 11:02:47 +01:00
David Chisnall
30ad9722a7 Merge pull request #35 from Microsoft/shared_allocator_cmake_support 
Shared allocator cmake support
 2019-04-12 13:04:41 +01:00
Roy Schuster
29e4bdd29d Splitting EXPOSE_EXTERNAL_ALLOCATOR_API to EXPOSE_EXTERNAL_PAGEMAP and EXPOSE_EXTERNAL_RESERVE. Only the shim can be affected by passing the new pre-processor definitions to cmake. 2019-04-12 12:32:37 +01:00
Roy Schuster
81030a554f EOL conversion for clang-format 2019-04-12 10:43:55 +01:00
Roy Schuster
eb2b8a0c80 Checking for redefinition of SNMALLOC_EXPOSE_PAGEMAP, since it can now be a cmake argument 2019-04-12 10:10:58 +01:00
Roy Schuster
ebc1dab1cf Passing the EXPOSE_SHARED_ALLOCATOR argument to cmake will now expose the external allocator and pagemap sharing API 2019-04-12 09:51:52 +01:00
David Chisnall
8e5f96686a Merge pull request #34 from Microsoft/pagemap_access_refactor 
Pagemap access refactor
 2019-04-12 08:59:22 +01:00
David Chisnall
ca804c1815 [NFC] clang-format 2019-04-11 17:36:14 +01:00
David Chisnall
7f057f308f Fix inverted logic in the type check. 2019-04-11 17:31:44 +01:00
David Chisnall
5c1abffdda Fix missing const. 2019-04-11 17:25:53 +01:00
David Chisnall
9b3641df91 Address Matt's review comments. 2019-04-11 17:08:16 +01:00
David Chisnall
785766b129 Move constants into the right file. 
Document them while we're moving them.
 2019-04-11 16:57:12 +01:00
David Chisnall
cd8ba18191 Delete some dead code that's difficult to use correctly. 2019-04-11 16:55:05 +01:00
David Chisnall
9d24f7e24f Fix callers of renamed function. 2019-04-11 10:42:50 +01:00
David Chisnall
a64cc5562f Remove indirection in the common case. 
Rather than unconditionally storing a pointer to the pagemap and
initialising this with a global, we now provide a choice of three
compile-time options for how the pagemap should be accessed.
 2019-04-11 10:33:52 +01:00
David Chisnall
29b45c3345 Rename the pagemap accessor to be noun-verb. 2019-04-11 10:33:36 +01:00
David Chisnall
29aa8ef67e Give up on new making CI support recent clang-format. 
Revert to 6.0 and use that locally to insert an extra blank line to make
CI happy...
 2019-04-10 13:25:43 +01:00
David Chisnall
c673926d15 Add missing const. 
No idea why this only raised an error with cl.exe, it was wrong on all
platforms.
 2019-04-10 13:13:09 +01:00
David Chisnall
6f19d4e1e7 Bump the clang-format version to 7. 
6 inserts some whitespace that 7 doesn't.
 2019-04-10 13:09:55 +01:00
David Chisnall
ad0a22e571 Add missing doc comments. 2019-04-10 12:49:02 +01:00
David Chisnall
2442dc4f3f [NFI] clang-format 2019-04-10 12:43:04 +01:00
David Chisnall
d0fefb8641 Don't always refer to the global pagemap. 
If you're creating a new allocator and the pagemap comes from a library
that exports the pagemap accessor function but not the pagemap symbol,
you need to be able to replace this.
 2019-04-10 11:57:02 +01:00
David Chisnall
607573bb28 Add missing #pragma once to pal_consts.h 
If you're defining a new PAL then you need to include this file twice.
 2019-04-10 11:56:07 +01:00
David Chisnall
a93f43fd2f Add some type safety to other pagemap accesses. 
Introduce a descriptor for the pagemap config and check that the source
descriptor is compatible with the destination type.
 2019-04-09 15:52:38 +01:00
rschust
51fbdf3a44 ZeroMem should not be a part of pal_consts.h 2019-04-09 13:56:22 +01:00
rschust
71900ef947 Created pal_consts.h. New exported functions are now prefixed with "snmalloc_". 2019-04-09 13:56:22 +01:00
rschust
f0d18760fe Exporting the global pagemap and the default memory provider's reserve function in order to support shared allocators 2019-04-09 13:56:22 +01:00
David Chisnall
a4dd814f6e [NFC] Clang-format. 2019-02-26 16:56:40 +00:00
David Chisnall
9ab0eef85a Restore accidentally deleted variables. 2019-02-26 16:56:40 +00:00
David Chisnall
869b22b422 Sort test order so that perf tests start first. 
These take longer, so we want to start them earlier and let the shorter
tests fill in the gaps in scheduling.
 2019-02-25 16:33:57 +00:00