text: // Copyright 2018 The Crashpad Authors. All rights reserved.
  //
  // 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.
  
  #ifndef CRASHPAD_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
  #define CRASHPAD_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
  
  #include <lib/zx/process.h>
  #include <zircon/syscalls/object.h>
  
  #include <vector>
  
  #include "util/misc/initialization_state_dcheck.h"
  
  namespace crashpad {
  
  //! \brief A list of mappings in the address space of a Fuchsia process.
  class MemoryMapFuchsia {
   public:
    MemoryMapFuchsia();
    ~MemoryMapFuchsia();
  
    //! \brief Initializes this object with information about the mapped memory
    //!     regions in the given process.
    //!
    //! \return `true` on success, or `false`, with an error logged.
    bool Initialize(const zx::process& process);
  
    //! \brief Searches through the previously retrieved memory map for the given
    //!     address. If found, returns the deepest `zx_info_maps_t` mapping that
    //!     contains \a address.
    //!
    //! \param[in] address The address to locate.
    //! \param[out] map The `zx_info_maps_t` data corresponding to the address.
    //! \return `true` if a mapping for \a address was found, in which case \a map
    //!     will be filled out, otherwise `false` and \a map will be unchanged.
    bool FindMappingForAddress(zx_vaddr_t address, zx_info_maps_t* map) const;
  
    //! \brief Get a vector of `zx_info_maps_t` representing the memory map for
    //!     this process.
    const std::vector<zx_info_maps_t>& Entries() const { return map_entries_; }
  
   private:
    std::vector<zx_info_maps_t> map_entries_;
    InitializationStateDcheck initialized_;
  
    DISALLOW_COPY_AND_ASSIGN(MemoryMapFuchsia);
  };
  
  }  // namespace crashpad
  
  #endif  // CRASHPAD_SNAPSHOT_FUCHSIA_MEMORY_MAP_FUCHSIA_H_
  