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1aa478d161
This change was partially scripted and partially done manually with vim regex + manually placing the deleted constructors. The script change looked for destructors in the public: section of a class, if that existed the deleted constructors would go before the destructor. For manual placement I looked for any constructor in the public: section of the corresponding class. If there wasn't one, then it would ideally have gone as the first entry except below enums, classes and typedefs. This may not have been perfect, but is hopefully good enough. Fingers crossed. #include "base/macros.h" is removed from files that don't use ignore_result, which is the only other thing defined in base/macros.h. Bug: chromium:1010217 Change-Id: I099526255a40b1ac1264904b4ece2f3f503c9418 Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3171034 Reviewed-by: Mark Mentovai <mark@chromium.org> Commit-Queue: Peter Boström <pbos@chromium.org>
110 lines
3.3 KiB
C++
110 lines
3.3 KiB
C++
// Copyright 2021 The Crashpad Authors. All rights reserved.
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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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#ifndef CRASHPAD_UTIL_IOS_SCOPED_VM_READ_H_
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#define CRASHPAD_UTIL_IOS_SCOPED_VM_READ_H_
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#include <mach/mach.h>
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namespace crashpad {
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namespace internal {
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//! \brief Non-templated internal class to be used by ScopedVMRead.
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//!
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//! Note: RUNS-DURING-CRASH.
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class ScopedVMReadInternal {
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public:
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ScopedVMReadInternal();
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ScopedVMReadInternal(const ScopedVMReadInternal&) = delete;
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ScopedVMReadInternal& operator=(const ScopedVMReadInternal&) = delete;
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~ScopedVMReadInternal();
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//! \brief Releases any previously read data and vm_reads \a data. Logs an
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//! error on failure.
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//!
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//! \param[in] data Memory to be read by vm_read.
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//! \param[in] data_length Length of \a data.
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//!
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//! \return `true` if all the data was read. Logs an error and returns false
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//! on failure
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bool Read(const void* data, size_t data_length);
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vm_address_t data() const { return data_; }
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private:
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// The address of the requested data.
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vm_address_t data_;
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// The rounded down page boundary of the requested data.
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vm_address_t vm_read_data_;
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// The size of the pages that were actually read.
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mach_msg_type_number_t vm_read_data_count_;
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};
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//! \brief A scoped wrapper for calls to `vm_read` and `vm_deallocate`. Allows
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//! in-process handler to safely read memory for the intermediate dump.
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//!
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//! Note: RUNS-DURING-CRASH.
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template <typename T>
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class ScopedVMRead {
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public:
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ScopedVMRead() : internal_() {}
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ScopedVMRead(const ScopedVMRead&) = delete;
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ScopedVMRead& operator=(const ScopedVMRead&) = delete;
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~ScopedVMRead() {}
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//! \brief Releases any previously read data and vm_reads data.
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//!
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//! \param[in] data Memory to be read by vm_read.
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//! \param[in] count Length of \a data.
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//!
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//! \return `true` if all \a data was read. Returns false on failure.
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bool Read(const void* data, size_t count = 1) {
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size_t data_length = count * sizeof(T);
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return internal_.Read(data, data_length);
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}
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//! \brief Releases any previously read data and vm_reads address.
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//!
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//! \param[in] address Address of memory to be read by vm_read.
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//! \param[in] count Length of \a data.
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//!
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//! \return `true` if all of \a address was read. Returns false on failure.
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bool Read(vm_address_t address, size_t count = 1) {
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return Read(reinterpret_cast<T*>(address), count);
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}
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//! \brief Returns the pointer to memory safe to read during the in-process
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//! crash handler.
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T* operator->() const { return get(); }
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//! \brief Returns the pointer to memory safe to read during the in-process
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//! crash handler.
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T* get() const { return reinterpret_cast<T*>(internal_.data()); }
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private:
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ScopedVMReadInternal internal_;
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};
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} // namespace internal
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_IOS_SCOPED_VM_READ_H_
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