Summary:
`loadClientCAList`, unlike `loadTrustedCertificates`, does not *append*
"client ca"s to the current context, it *overrides* the list of acceptable
client CA names.

`load` vs `set` have subtle, but recognizable, semantic differences. There
is a currently a bug in wangle::SSLContextManager that could have been
prevented if the name was more wisely chosen.

Rename to `setSupportedClientCertificateAuthorityNames`, which is verbose but
* Makes the `load` vs `set` distinction clear.
* Makes it clear that this has nothing to do with changing how client CAs are
  configured. All this does is set a list of supported names; nothing more.
  Existing call sites imply that authors misunderstood what this function
  was doing.

Reviewed By: kylemirz

Differential Revision: D32408104

fbshipit-source-id: acf55c2e0b206e28e13e5922d719b43289a1c0f7

Summary:
The `prependChain()` and `appendChain()` method names have always been
confusing, ever since they were first added in D271954.

These methods prepend and append immediately before or after the current
element.  However, because IOBuf chains are circular, this effectively means
that `prependChain()` appends to the very end of the chain when called on the
head of an IOBuf chain.  This is almost always how it is used in practice, so
having it be named `prependChain()` is quite confusing.  (Note that in the
initial version of D271954 these methods were originally named `appendChain()`
and `appendChainHere()`, but were unfortunately renamed during review.)

This diff adds alternate names for these methods, so we can migrate call sites
to use the new names, and then deprecate these existing names.

`appendToChain()` is the new recommended name for `prependChain()`, and
`insertAfterThisOne()` is the new recommended name for `appendChain()`

Reviewed By: voznesenskym

Differential Revision: D32524091

fbshipit-source-id: faf74f8803947c6452a10b58ced0c38efbd320fd

Summary: Remove the empty .pyx files to prevent the temptation to generate empty module.so from them.

Reviewed By: nanshu

Differential Revision: D32634255

fbshipit-source-id: 277f954f3500811df4a8b16e08acf0b8092172c3

Summary:
The slowdown from the tracking is making long running tests that also
exercise it heavily to time out.

Reviewed By: yfeldblum

Differential Revision: D31715944

fbshipit-source-id: 2b4354242dd035c2a4ba69a2aa3e05f2196ae949

Summary: Enables terminating the process with the wrapped exception, as if calling folly::terminate_with polymorphically

Reviewed By: Gownta

Differential Revision: D32776269

fbshipit-source-id: d0d1ac374a38010bbe3ae608d22f7b2141d070e6

Summary: As in title, replace cdef values with module level attributes

Reviewed By: pranavtbhat

Differential Revision: D32788433

fbshipit-source-id: 7df97fd17a6aef9cd2d637f12c0bef8993fd253f

Summary: Ubuntu 18.04 zstd version is too old for the folly buikld

Reviewed By: Croohand

Differential Revision: D32693530

fbshipit-source-id: 9de4b8d1eac1043b329016e487241e27bf6bb554

Summary:
cmake 3.10 on ubuntu 18.04 reserves the Python3::Interpreter target so that the FBPythonBinary.cmake rules can't definite it when missing

This breaks builds using the Python3::Interpreter rule, notably the python-six manifest which in turn is used by fbthrift

The fix is to use the getdeps manifest cmake manifest instead on .deb platforms.  Once CI is on ubuntu 20.04 everywhere we could revisit

Reviewed By: Croohand

Differential Revision: D32693523

fbshipit-source-id: 8521d904fba588941ab1efd0148f9d24a350e849

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