Export of internal Abseil changes

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e7f53dfbf809812e84770217777f81b6308a3084 by Abseil Team <absl-team@google.com>:

Add a parameter pack to absl profile to allow profiles to separate
dynamic data from static data that is available at constructor-time.

Background: `inline_element_size` is effectively constant, but there
is a data race between its initialization and its access. We had fixed that race by making
inline_element_size atomic.  This CL changes `inline_element_size`
back to a non-atomic integer, and provides a way for all profiles to
provide Register()-time values.
PiperOrigin-RevId: 413960559

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70234c5943f8e37e17c1d9c54d8ed61d39880abf by Chris Kennelly <ckennelly@google.com>:

Document that absl::FunctionRef does not allocate.

PiperOrigin-RevId: 413946831

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3308ae571412c4be3cc32d088c6edac98ff2d1ed by Samuel Benzaquen <sbenza@google.com>:

Internal change

PiperOrigin-RevId: 413933619

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1617093a730d055edcf7bc04fdd6509783f5f75d by Martijn Vels <mvels@google.com>:

Internal Change

PiperOrigin-RevId: 413778735

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03ad683f059c806a6c8b04f5b79b2662c3df8c73 by Evan Brown <ezb@google.com>:

Unify btree erase_if definitions and optimize them so that we only do rebalancing once per leaf node.

PiperOrigin-RevId: 413757280

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5ba402f70801938178e486617063f01c7862525d by Martijn Vels <mvels@google.com>:

Cleanup up cord sampling internals

PiperOrigin-RevId: 413755011

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522da8f9d3e0f11630d89fb41952004742bc335a by Evan Brown <ezb@google.com>:

Add b-tree benchmark for erase_if.

Since this benchmark doesn't work for std:: containers before C++20, disable it for them.

PiperOrigin-RevId: 413740844

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a690ea42de8ed4a761d00235d8b2fb7548ba9732 by Andy Getzendanner <durandal@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 413735737
GitOrigin-RevId: e7f53dfbf809812e84770217777f81b6308a3084
Change-Id: I4f9f9039ba92831bc48971964aa063244c9fed72

1 files changed, 0 insertions, 40 deletions

diff --git a/absl/strings/cord.cc b/absl/strings/cord.cc
index 0015bb9f..5905bac0 100644
--- a/absl/strings/cord.cc
+++ b/absl/strings/cord.cc
@@ -468,46 +468,6 @@ static inline bool PrepareAppendRegion(CordRep* root, char** region,
   return true;
 }
 
-template <bool has_length>
-void Cord::InlineRep::GetAppendRegion(char** region, size_t* size,
-                                      size_t length) {
-  auto constexpr method = CordzUpdateTracker::kGetAppendRegion;
-
-  CordRep* root = tree();
-  size_t sz = root ? root->length : inline_size();
-  if (root == nullptr) {
-    size_t available = kMaxInline - sz;
-    if (available >= (has_length ? length : 1)) {
-      *region = data_.as_chars() + sz;
-      *size = has_length ? length : available;
-      set_inline_size(has_length ? sz + length : kMaxInline);
-      return;
-    }
-  }
-
-  size_t extra = has_length ? length : (std::max)(sz, kMinFlatLength);
-  CordzUpdateScope scope(root ? data_.cordz_info() : nullptr, method);
-  CordRep* rep = root ? cord_internal::RemoveCrcNode(root)
-                      : MakeFlatWithExtraCapacity(extra);
-  if (PrepareAppendRegion(rep, region, size, length)) {
-    CommitTree(root, rep, scope, method);
-    return;
-  }
-
-  // Allocate new node.
-  CordRepFlat* new_node = CordRepFlat::New(extra);
-  new_node->length = std::min(new_node->Capacity(), length);
-  *region = new_node->Data();
-  *size = new_node->length;
-
-  if (btree_enabled()) {
-    rep = CordRepBtree::Append(ForceBtree(rep), new_node);
-  } else {
-    rep = Concat(rep, new_node);
-  }
-  CommitTree(root, rep, scope, method);
-}
-
 // Computes the memory side of the provided edge which must be a valid data edge
 // for a btrtee, i.e., a FLAT, EXTERNAL or SUBSTRING of a FLAT or EXTERNAL node.
 static bool RepMemoryUsageDataEdge(const CordRep* rep,