Summary: Useful to be able to see what packages would be installed without doing it, and to see rpm vs deb packages

Reviewed By: Croohand

Differential Revision: D32693528

fbshipit-source-id: a01257e7192f2f0299d57f6f8f7ee93452a6f3e4

Summary:
Fixes warnings like the following:

```
folly\io\async\EventBase.cpp(725): warning C5219: implicit conversion from '_Rep' to 'double', possible loss of data
        with
        [
            _Rep=__int64
        ]
folly\io\async\EventBase.cpp(738): warning C5219: implicit conversion from '_Rep' to 'double', possible loss of data
        with
        [
            _Rep=__int64
        ]
folly\io\async\EventBase.cpp(740): warning C5219: implicit conversion from 'size_t' to 'double', possible loss of data
```

Reviewed By: luciang

Differential Revision: D31330566

fbshipit-source-id: 86a2cd10fdad53dce9c0ee0704b26bb1bce2bf18

Summary: No place which defines this nominally owns the name.

Reviewed By: Gownta

Differential Revision: D32632858

fbshipit-source-id: ab5ee161b7c80f08a177c752c4bfe693cf9c9de3

Summary:
Makes `folly::AsyncioExecutor` an abstract class and adds new `folly::python::setExecutorForLoop()` (C++) and `folly.executor.set_executor_for_loop()` (Python) functions. These control what is returned by `folly::python::getExecutor()` and `folly.executor.get_executor()` and hence allow installing a custom system for handling native callbacks on the Python event loop.

In this implementation we only allow the executor for a given Python event loop to be set _once_ before being explicitly cleared. An alternative which was discussed was returning the previous executor when setting a new one, allowing the caller to stack them. My rationale for not doing this is I think this makes it too easy to accidentally "lose" callbacks registered with an existing executor.

Reviewed By: vladima, pranavtbhat

Differential Revision: D32486564

fbshipit-source-id: 4c9ad4e5f2b7b89f1edafdb4eddd9ccacb23635f

Summary: For invoking things given possible-qualified names. Differs from invoke-free as the latter accepts an optional list of namespaces scope to include in name lookup but does not permit qualified names and does not admit a lambda variation.

Reviewed By: Gownta

Differential Revision: D32670267

fbshipit-source-id: f9b9e33bd1e3cfa1c191eb8c91b3f50bb0e9734e

Reviewed By: Gownta

Differential Revision: D32747533

fbshipit-source-id: f3fe004797eeaf22ae1db85f27b547dc7ad7cfbc

Summary: Hand to do just one

Reviewed By: zpao

Differential Revision: D32693529

fbshipit-source-id: ac27c79f8a43c540e3b0836eba3a40bd61dd725b

Summary: As in title, skip lookup in `WeakKeyDictionary` for repeated `get_fiber_manager` calls on the same event loop

Reviewed By: pranavtbhat

Differential Revision: D32566214

fbshipit-source-id: 7a9305ef88538ae4ef422283bc1b8a4140b8ea33

Summary: Update to new version of upload-artifact without branch name as that's a separate repo that our dynamic branch settings should not apply to.

Reviewed By: zpao

Differential Revision: D32717494

fbshipit-source-id: 968908d1072d6d4550705e7df0b3828528e057dc

Summary: Pick up the changes from master to main change

Reviewed By: zpao

Differential Revision: D32693532

fbshipit-source-id: 8cf68e3310b4d2daf71fb10eee7a801c6eabbd48

Summary: Branches updated some time ago, update this to match

Reviewed By: zpao

Differential Revision: D32693531

fbshipit-source-id: 02da79e3fb5fcd3b204be4605521a151b977ce2c

Summary:
Before removing `getX509()` from `AsyncTransportCertificate` we need to migrate
all the callsites to `OpenSSLTransportCertificate`.

Differential Revision: D30487611

fbshipit-source-id: 50deea4904b7b6a6c08c6d4fd0c635a4bc8774cb

Summary: Match overloads of upstream Invoke action to ease migration

Reviewed By: ispeters

Differential Revision: D32706320

fbshipit-source-id: d9564f63e534e3651433806fcf4f1fff7730fcc5

Summary: Mononoke has decided to no longer support getdeps builds. This diff deletes all mentions to those I could find.

Reviewed By: StanislavGlebik

Differential Revision: D32469441

fbshipit-source-id: a11b3f1d5c57ef20792deb0e7f164e655f62648c

Summary:
Conversion for cases when we have a `folly::any_badge<A, B>` and want to call some function that accepts `folly::any_badge<A, B, C>`.
```
void call_superset(folly::any_badge<A, B, C>);
void call_subset(folly::any_badge<A, B> badges) { call_superset(badges); }

// somewhere in A class
call_subset(folly::badge<A>{});

// somewhere in B class
call_subset(folly::badge<B>{});
```

Also establish bidirectional conversions between `folly::badge<A>` and `folly::any_badge<A>`.

Reviewed By: yfeldblum

Differential Revision: D32697212

fbshipit-source-id: 2f55d0b5015e133166fcdd6d9c25a0e396c2a151

Summary: Missed this when switching from spaces to underscores in distro names

Reviewed By: krallin

Differential Revision: D32693527

fbshipit-source-id: 658504d76c96defd3f1a217ada8b05f99c841ede

Summary: Update it

Reviewed By: krallin

Differential Revision: D32641645

fbshipit-source-id: 77ad7a2771804ac9d32dc38982635b45863af4dc

Reviewed By: Gownta

Differential Revision: D32669969

fbshipit-source-id: 4e0cd2cf73ba695720dd41416d0d04a3996385da

Summary: Wrap more of poisoning/unpoisoning and fiber stack switching.

Reviewed By: luciang

Differential Revision: D31635307

fbshipit-source-id: 9a6f9adbefe6fd995cfa864e0498102e237e6351

Summary:
Use inline variables to avoid the function-pointer trick.

Use explicit default constructors per the types in the standard.

Import the names from the standard in C++17.

This allows declaring a function with tags from one namespace and calling the function with tags from the other namespace in C++17.

Reviewed By: vitaut

Differential Revision: D32588945

fbshipit-source-id: 0ece26ebf7f9f6acf9abb8b008327f06f84091f2

Summary:
`__folly_memcpy` already behaved as `memmove` for n <= 256B.

For n > 256B and overlapping buffers `__folly_memcpy` did some work
- it determined the size is large enough for 128B AVX loads/stores
- it has already copied the first 128B and the last 128B in YMM registers

but then discarded it and fell back on `memmove`.

Instead of wasting this work, forward copy (dst < src) or backward copy (dst > src).
- use unaligned loads + aligned stores, but not non-temporal stores
- for dst < src forward copy in 128 byte batches:
-- unaligned load the first 32 bytes & last 4 x 32 bytes
-- forward copy (unaligned load + aligned stores) 4 x 32 bytes at a time
-- unaligned store the first 32 bytes & last 4 x 32 bytes
- for dst > src backward copy in 128 byte batches:
-- unaligned load the first 4 x 32 bytes & last 32 bytes
-- backward copy (unaligned load + aligned stores) 4 x 32 bytes at a time
-- unaligned store the first 4 x 32 bytes & last 32 bytes

Reviewed By: yfeldblum

Differential Revision: D31915389

fbshipit-source-id: 2c0197b2bddc102a7fb8f70a6f43e79ac994dc73

Summary: Before this change Try always reports as copy constructible then fires a static_assert if you try to instantiate that constructor for a non-copy-constructible type, which breaks logic like that inside std::vector::resize.

Reviewed By: yfeldblum

Differential Revision: D32567774

fbshipit-source-id: 4e3e35a1f823ac9ccb5e2d648015fddccb14cfbf

Summary: That is an old glibc. The shims are no longer required.

Reviewed By: Orvid

Differential Revision: D32632173

fbshipit-source-id: d6ce675c6f16b896a950363b411bec66cedca966

Summary: renable after python update from previous diff took us to a Big Sur compatible version

Reviewed By: HarveyHunt

Differential Revision: D32619730

fbshipit-source-id: 50cefe8a2448b7e12d2f666b4570790bfbbe2cdf

Summary:
Update to a newer python that builds on macOS Big Sur, make eden_scm depend on it and use it from PATH

python 3.8 requires libffi which is reference via its pkg-config setup,  however python's pkg-config libffi detection is broken (https://bugs.python.org/issue34823) with the documented workaround requiring an environment variable to be passed into its ./configure step, which is why this change also adds a feature to AutoconfBuilder

With the updated python in place I was able to remove disable_env_override_pkgconfig = 1
disable_env_override_path = 1 from the eden_scm config so that it actually uses the pkg-configs, PATHs and other settings from its dependencies. This should make future python and other dependency upgrades much simpler.

Reviewed By: HarveyHunt

Differential Revision: D32231261

fbshipit-source-id: a2b6addbe22f38e3d71618c802d2c6f836fdd86c

Summary: A macro which expands to `constexpr` under C++17. Can be used with `if` and lambdas in cases where `constexpr` is an optional hint but not necessary for the program to compile.

Reviewed By: Mizuchi

Differential Revision: D32607012

fbshipit-source-id: 56a6d8679ab2add4f88c89642166f1ed4b956089

Summary:
Fixes this warning:

```
folly\experimental\bser\Load.cpp(109) : warning C4866: compiler may not enforce left-to-right evaluation order for call to 'folly::dynamic::operator[]'
folly\experimental\bser\Load.cpp(131) : warning C4866: compiler may not enforce left-to-right evaluation order for call to 'folly::dynamic::operator[]'
folly\experimental\bser\Load.cpp(136) : warning C4866: compiler may not enforce left-to-right evaluation order for call to 'folly::dynamic::operator[]'
```

Reviewed By: luciang

Differential Revision: D31320782

fbshipit-source-id: 9e42176436d7ebf22af38b0589ccdc75e020b771

Reviewed By: Gownta

Differential Revision: D31824054

fbshipit-source-id: 101f8daa3018e89c1857d4d2980e97bc8487ca21

Reviewed By: yfeldblum

Differential Revision: D32364716

fbshipit-source-id: f36356d5818adebe5bbbe219044c81282ab008a6

Summary: I found this useful to see where manifests resolve to when they are already built

Reviewed By: HarveyHunt

Differential Revision: D32644308

fbshipit-source-id: b796cb67f154177fbac1093290d97fe5aab6b20c

Summary: Fix FLAKE8 lint about redefintion of 'getdeps' variable

Reviewed By: HarveyHunt

Differential Revision: D32644576

fbshipit-source-id: 9c3b4ef54d2278238c3dc88a4969e34e24976a3d

Summary: This fixes some missing cert errors when running eden_scm tests against our own build of openssl on macOS

Reviewed By: HarveyHunt

Differential Revision: D32617808

fbshipit-source-id: efc34341c2c9b578f9c1c92e0678dfb16ef9112e

Summary: System openssl is preferred on Linux

Reviewed By: HarveyHunt

Differential Revision: D32617807

fbshipit-source-id: 30913858b7f4172cea3d819a63d57563b3da64aa

Summary: I don't think the spaces were breaking anything, but many years on unix means they set my spidey sense tingling when looking at the build logs.

Reviewed By: StanislavGlebik

Differential Revision: D32619583

fbshipit-source-id: 8d5bc35f085faced20457645f1c1430371a3c578

Summary: Just replace it with `__GLIBCXX__`.

Reviewed By: andrewjcg

Differential Revision: D32624136

fbshipit-source-id: fa3ae4b4e7c3b6c05793a25cc99a93a0d0c18c7f

Summary: A lambda-expression parallel to `FOLLY_CREATE_MEMBER_INVOKER_SUITE`.

Reviewed By: Gownta

Differential Revision: D32601861

fbshipit-source-id: 8bb5876d800215346b19c42090a1cc13b6aa9042

Summary: In generic algorithms parameterized by a mutex type, it may be the case that a shared lock is desired if the mutex is a shared mutex and a unique lock is desired otherwise. This allows a wider range of mutex type arguments rather than just permitting shared mutex types. A hybrid lock may be used with read-only access to data; when the mutex type is shared, the lock would be optimized to a shared lock, but when the mutex type is non-shared, the lock would fall back to a unique lock. This may be helpful since writes may dominate reads in some cases and unique locks on non-shared mutex types may be faster than unique locks on shared mutex types.

Reviewed By: Gownta

Differential Revision: D29624498

fbshipit-source-id: 9caaf9c413fd6ce7ea318906362c3c4330f8d343

Summary: Lets make this faster

Reviewed By: Croohand

Differential Revision: D32614135

fbshipit-source-id: 2285bdb89c2ad982667261800f327f851a6cfcec

Summary: Make it faster, the build can run in parallel.  Unfortunately install can't but its pretty quick anyway.

Reviewed By: Croohand

Differential Revision: D32608049

fbshipit-source-id: 6c86184993a065e29f95df658f1b50ba563a5b14

Summary: fix a lint, platform variable was declared twice

Reviewed By: Croohand

Differential Revision: D32605614

fbshipit-source-id: 8e43de8689bf30410273355444db9c3d94663d43