Once `mmap` succeeded, it's no longer necessary to keep the underlying fd
open. Therefore just close them as an attempt to reduce file descriptors
opened by the process.
Thanks for spectral from Google for pointing out that fd could be closed.
Test Plan:
```
make clean local
rt test-cstore.t test-*pack*.t
```
Differential Revision: https://phab.mercurial-scm.org/D1185
On Arch Linux, glibc 2.25-7, `cdatapack.h` includes `stdint.h`, which
includes `bits/libc-header-start.h`, which includes `features.h`. Therefore
`_DEFAULT_SOURCE` and `_BSD_SOURCE` must be defined before including
`cdatapack.h`.
`ntoh_data_offset` was moved to `.c` to make sure `.c` is the only direct
and indirect user of `be64toh`.
Test Plan:
Make sure `make local` works on Arch Linux.
Differential Revision: https://phab.mercurial-scm.org/D559
Summary:
Clean up the include guards to be more consistent and unique.
Some files used include guards like "KEY_H" and "STORE_H" which were not very
unique, and are more likely to collide with definitions provided by header
files from other projects. Some of the py-*.h files were missing include
guards altogether.
This corresponds to Facebook diff D5588670.
Test Plan: Confirmed the code still builds and passes tests.
Reviewers: #fbhgext, quark
Reviewed By: #fbhgext, quark
Differential Revision: https://phab.mercurial-scm.org/D508
Summary:
Update the copyright headers in most of the C/C++ code consistently use the
GPLv2 copyright message. This allows these files to pass Facebook's internal
C/C++ linters.
Some of the files in fbcode/scm/hgext/cstore/ appear to have actually been
copied from the hg-crew repository, and were not originally authored by
Facebook. I have not modified the copyright statements in these files:
- cstore/bitmanipulation.h
- cstore/compat.h
- cstore/mpatch.h
- cstore/mpatch.c
I also have not modified any of the cfastmanifest code.
This corresponds to Facebook diff D5588677.
Test Plan:
Confirmed that Facebook's C++ linters no longer complain about the copyright
messages.
Reviewers: #fbhgext, quark
Reviewed By: #fbhgext, quark
Differential Revision: https://phab.mercurial-scm.org/D507
Summary:
Convert the C and C++ files in cdatapack, clib, cstore, and ctreemanifest
to always include files from the root of fb-hgext. This simplifies the build
process by no long requiring a variety of separate include directories to be
specified on the compiler command line.
This will also make it easier to re-use these extensions in other projects
with different build systems.
This corresponds to the Facebook diff D5588676.
Test Plan: Confirmed that "make local" succeeds from a clean build.
Reviewers: #fbhgext, quark
Reviewed By: #fbhgext, quark
Differential Revision: https://phab.mercurial-scm.org/D505
Summary:
It's a small C utility. It should belong to `clib` directory.
Also, `#include "../foo"` does not seem to be a good pattern. It makes
include files harder to follow and make code movement more difficult. Since
`clib` is already included in `-I` during compilation, remove `../`.
Test Plan: `make clean local`. It still builds.
Reviewers: ikostia, #mercurial, rmcelroy
Reviewed By: rmcelroy
Subscribers: mjpieters, vsutaria
Differential Revision: https://phabricator.intern.facebook.com/D5113236
Signature: t1:5113236:1495562436:e8d64083ab0417c67b63223a092470739f4c1176
Summary:
This patch moves lz4decompress logic to a separate function from
getdeltachainlink.
This should solve a memory leak issue and speed up datapack entry iteration.
Practically, this means repack will be faster and take less memory.
Test Plan: `make clean local`, run `test-cstore.t`, and `test-remotefilelog-repack-fast.t`
Reviewers: #mercurial, durham
Reviewed By: durham
Subscribers: mjpieters, terrelln
Differential Revision: https://phabricator.intern.facebook.com/D4960035
Signature: t1:4960035:1493609520:a3c74bae92b8fff85ccadd9dd412a0c2b05573ac
Summary:
This diffs add a `getmeta` method to all content stores. The cdatapack code is
modified to pass the tests, it needs further change to support `getmeta`.
The datapack format is bumped to v1 from v0. For v1, we append a `metadata`
dict at the end of each revision. The dict is currently used to store revlog
flags and rawsize of raw revlog fulltext. In the future we can put more data
like a second hash etc, without changing API or format again.
This diff focuses on correctness. A datapack caching layer to speed up
`getmeta` will be added later.
Tests are updated since we write new v1 packfile now and the format change
leads to different content and packfile names.
`Makefile`, `ls-l.py` are added to make tests easier to maintain.
Test Plan: Updated existing tests.
Reviewers: #mercurial, rmcelroy, durham
Reviewed By: durham
Subscribers: rmcelroy, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4903917
Signature: t1:4903917:1493255844:7ef5d487096cd2f78f2aaae672a68d49f33632ee
Summary:
I sync'd a copy of this code into the eden repository.
I had to adjust a couple of include paths to get the code to
compile correctly in the hermetic build environment that is
in use there.
In addition, our linter suite over there found a couple of C++ nits
to be fixed up.
Test Plan: make local
Reviewers: simpkins, ikostia, simonfar, durham
Reviewed By: durham
Subscribers: net-systems-diffs@fb.com, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4879285
Signature: t1:4879285:1492039044:8cb1e033e35ee568806de94dda3d2f6f8e78f5cb
Summary:
Proposed header (or its dir) is a single place to put MSVC/GCC hacks. So
far it only includes the COMPOUND_LITERAL macro which behaves differently
depending on MSVC mode.
When MSVC2015 is used in C++ mode, it does not support things like:
`(my_type) {initializers}`, but in C mode it does.
To clarify: I am not even sure whether we need to have the ability to compile in a purely C mode, but I did not want to figure out.
Test Plan: - on Linux, run `python setup.py build`, run all the tests, see them passing
Reviewers: #sourcecontrol, tja
Reviewed By: tja
Subscribers: tja, jsgf, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4843230
Signature: t1:4843230:1491496062:3fa10ae5a5aac850689991de1ca6ee1ac86d9dce
Summary:
The remaining python parts of the store are a perf bottleneck when accessing
hundreds of thousands of pack file entries (like in treemanifest). Let's
implement them in C++.
This first patch just add the basic boiler plate, and implements a single
function getdeltachain(), with a test. Future patches will add more
functionality and other parts of the store.
Since cstore depends on cdatapack and ctreemanifest (the pythonutils.h part for
now), we need to tweak our setup.py to enforce a certain build order too.
Test Plan: Added a test, yo
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: simonfar, stash, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4547929
Signature: t1:4547929:1487181318:21c146cf370d26cb97efe6a883868b85b4e32f49
Summary:
The remaining python parts of the store are a perf bottleneck when accessing
hundreds of thousands of pack file entries (like in treemanifest). Let's
implement them in C++.
This first patch just add the basic boiler plate, and implements a single
function getdeltachain(), with a test. Future patches will add more
functionality and other parts of the store.
Since cstore depends on cdatapack and ctreemanifest (the pythonutils.h part for
now), we need to tweak our setup.py to enforce a certain build order too.
Test Plan: Added a test, yo
Reviewers: #mercurial, simonfar
Reviewed By: simonfar
Subscribers: simonfar, stash, mjpieters
Differential Revision: https://phabricator.intern.facebook.com/D4547929
Signature: t1:4547929:1487181318:21c146cf370d26cb97efe6a883868b85b4e32f49
