Proyectos de Subversion Iphone Microlearning

// Copyright 2019 Google

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//      http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

#pragma once

#include "Crashlytics/Crashlytics/Helpers/FIRCLSFeatures.h"

#include "Crashlytics/Crashlytics/Helpers/FIRCLSFile.h"

#include <signal.h>

#include <stdbool.h>

// per man sigaltstack, MINSIGSTKSZ is the minimum *overhead* needed to support

// a signal stack.  The actual stack size must be larger.  Let's pick the recommended

// size.

#if CLS_USE_SIGALTSTACK

#define CLS_SIGNAL_HANDLER_STACK_SIZE (SIGSTKSZ * 2)

#else

#define CLS_SIGNAL_HANDLER_STACK_SIZE 0

#endif

#if CLS_SIGNAL_SUPPORTED

#define FIRCLSSignalCount (7)

typedef struct {

  const char* path;

  struct sigaction originalActions[FIRCLSSignalCount];

#if CLS_USE_SIGALTSTACK

  stack_t originalStack;

#endif

} FIRCLSSignalReadContext;

void FIRCLSSignalInitialize(FIRCLSSignalReadContext* roContext);

void FIRCLSSignalCheckHandlers(void);

void FIRCLSSignalSafeRemoveHandlers(bool includingAbort);

bool FIRCLSSignalSafeInstallPreexistingHandlers(FIRCLSSignalReadContext* roContext,

                                                const int signal,

                                                siginfo_t* info,

                                                void* uapVoid);

void FIRCLSSignalNameLookup(int number, int code, const char** name, const char** codeName);

void FIRCLSSignalEnumerateHandledSignals(void (^block)(int idx, int signal));

#endif