cf6ab6bb2b
- b527a3e4b36b644ac424e3c525b1cd393f6f6c40 Fix some typos in the usage examples by Jorg Brown <jorg@google.com>
- 82be4a9adf3bb0ddafc0d46274969c99afffe870 Fix typo in optional.h comment. by Abseil Team <absl-team@google.com>
- d6ee63bf8fc51fba074c23b33cebc28c808d7f07 Remove internal-only identifiers from code. by Daniel Katz <katzdm@google.com>
- f9c3ad2f0d73f53b21603638af8b4bed636e79f4 Use easier understandable names for absl::StartsWith and ... by Abseil Team <absl-team@google.com>
- 7c16c14fefee89c927b8789d6043c4691bcffc9b Add -Wno-missing-prototypes back to the LLVM copts. by Derek Mauro <dmauro@google.com>
- 2f4b7d2e50c7023240242f1e15db60ccd7e8768d IWYU | absl/strings by Juemin Yang <jueminyang@google.com>
- a99cbcc1daa34a2d6a2bb26de275e05173cc77e9 IWYU | absl/type by Juemin Yang <jueminyang@google.com>
- 12e1146d0fc76c071d7e0ebaabb62f0a984fae66 Use LLVM_FLAGS and LLVM_TEST_FLAGS when --compiler=llvm. by Derek Mauro <dmauro@google.com>
- cd6bea616abda558d0bace5bd77455662a233688 IWYU | absl/debugging by Juemin Yang <jueminyang@google.com>
- d9a7382e59d46a8581b6b7a31cd5a48bb89326e9 IWYU | absl/synchronization by Juemin Yang <jueminyang@google.com>
- 07ec7d6d5a4a666f4183c5d0ed9c342baa7b24bc IWYU | absl/numeric by Juemin Yang <jueminyang@google.com>
- 12bfe40051f4270f8707e191af5652f83f2f750c Remove the RoundTrip{Float,Double}ToBuffer routines from ... by Jorg Brown <jorg@google.com>
- eeb4fd67c9d97f66cb9475c3c5e51ab132f1c810 Adds conversion functions for converting between absl/tim... by Greg Miller <jgm@google.com>
- 59a2108d05d4ea85dc5cc11e49b2cd2335d4295a Change Substitute to use %.6g formatting rather than 15/1... by Jorg Brown <jorg@google.com>
- 394becb48e0fcd161642cdaac5120d32567e0ef8 IWYU | absl/meta by Juemin Yang <jueminyang@google.com>
- 1e5da6e8da336699b2469dcf6dda025b9b0ec4c9 Rewrite atomic_hook.h to not use std::atomic<T*> under Wi... by Greg Falcon <gfalcon@google.com>
GitOrigin-RevId: b527a3e4b36b644ac424e3c525b1cd393f6f6c40
Change-Id: I14e331d91c956ef045ac7927091a9f179716de0c
54 lines
2.3 KiB
C++
54 lines
2.3 KiB
C++
// Copyright 2017 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Core interfaces and definitions used by by low-level interfaces such as
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// SpinLock.
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#ifndef ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
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#define ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
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namespace absl {
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namespace base_internal {
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// Used to describe how a thread may be scheduled. Typically associated with
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// the declaration of a resource supporting synchronized access.
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//
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// SCHEDULE_COOPERATIVE_AND_KERNEL:
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// Specifies that when waiting, a cooperative thread (e.g. a Fiber) may
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// reschedule (using base::scheduling semantics); allowing other cooperative
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// threads to proceed.
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//
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// SCHEDULE_KERNEL_ONLY: (Also described as "non-cooperative")
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// Specifies that no cooperative scheduling semantics may be used, even if the
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// current thread is itself cooperatively scheduled. This means that
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// cooperative threads will NOT allow other cooperative threads to execute in
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// their place while waiting for a resource of this type. Host operating system
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// semantics (e.g. a futex) may still be used.
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//
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// When optional, clients should strongly prefer SCHEDULE_COOPERATIVE_AND_KERNEL
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// by default. SCHEDULE_KERNEL_ONLY should only be used for resources on which
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// base::scheduling (e.g. the implementation of a Scheduler) may depend.
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//
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// NOTE: Cooperative resources may not be nested below non-cooperative ones.
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// This means that it is invalid to to acquire a SCHEDULE_COOPERATIVE_AND_KERNEL
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// resource if a SCHEDULE_KERNEL_ONLY resource is already held.
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enum SchedulingMode {
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SCHEDULE_KERNEL_ONLY = 0, // Allow scheduling only the host OS.
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SCHEDULE_COOPERATIVE_AND_KERNEL, // Also allow cooperative scheduling.
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};
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} // namespace base_internal
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} // namespace absl
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#endif // ABSL_BASE_INTERNAL_SCHEDULING_MODE_H_
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