Abseil Common Libraries (C++) (grcp 依赖)
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46 lines
1.9 KiB
46 lines
1.9 KiB
7 years ago
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// Copyright 2018 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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// Helper function for measuring stack consumption of signal handlers.
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#ifndef ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
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#define ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
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// The code in this module is not portable.
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// Use this feature test macro to detect its availability.
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#ifdef ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
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#error ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION cannot be set directly
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#elif !defined(__APPLE__) && \
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(defined(__i386__) || defined(__x86_64__) || defined(__ppc__))
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#define ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION 1
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namespace absl {
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namespace debugging_internal {
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// Returns the stack consumption in bytes for the code exercised by
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// signal_handler. To measure stack consumption, signal_handler is registered
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// as a signal handler, so the code that it exercises must be async-signal
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// safe. The argument of signal_handler is an implementation detail of signal
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// handlers and should ignored by the code for signal_handler. Use global
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// variables to pass information between your test code and signal_handler.
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int GetSignalHandlerStackConsumption(void (*signal_handler)(int));
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} // namespace debugging_internal
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} // namespace absl
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#endif // ABSL_INTERNAL_HAVE_DEBUGGING_STACK_CONSUMPTION
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#endif // ABSL_DEBUGGING_INTERNAL_STACK_CONSUMPTION_H_
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