crashpad::internal::MemorySnapshotGeneric< ProcessReaderType > Class Template Reference

A MemorySnapshot of a memory region in a process on the running system. Used on Mac, Linux, Android, and Fuchsia, templated on the platform-specific ProcessReader type. More...

#include "snapshot/memory_snapshot_generic.h"

Inheritance diagram for crashpad::internal::MemorySnapshotGeneric< ProcessReaderType >:

Public Member Functions
void	Initialize (ProcessReaderType *process_reader, VMAddress address, VMSize size)
	Initializes the object. More...
uint64_t	Address () const override
	The base address of the memory snapshot in the snapshot process’ address space.
size_t	Size () const override
	The size of the memory snapshot.
bool	Read (Delegate *delegate) const override
	Calls Delegate::MemorySnapshotDelegateRead(), providing it with the memory snapshot’s data. More...
const MemorySnapshot *	MergeWithOtherSnapshot (const MemorySnapshot *other) const override
	Creates a new MemorySnapshot based on merging this one with other. More...

Friends
template<class T >
const MemorySnapshot *	MergeWithOtherSnapshotImpl (const T *self, const MemorySnapshot *other)
	A standard implementation of MemorySnapshot::MergeWithOtherSnapshot() for concrete MemorySnapshot implementations that use a process_reader_.

Detailed Description

template<class ProcessReaderType>
class crashpad::internal::MemorySnapshotGeneric< ProcessReaderType >

A MemorySnapshot of a memory region in a process on the running system. Used on Mac, Linux, Android, and Fuchsia, templated on the platform-specific ProcessReader type.

Member Function Documentation

Initialize()

template<class ProcessReaderType>

void crashpad::internal::MemorySnapshotGeneric< ProcessReaderType >::Initialize ( ProcessReaderType *  process_reader, VMAddress  address, VMSize  size  )

inline

Initializes the object.

Memory is read lazily. No attempt is made to read the memory snapshot data until Read() is called, and the memory snapshot data is discared when Read() returns.

Parameters

[in]	process_reader	A reader for the process being snapshotted.
[in]	address	The base address of the memory region to snapshot, in the snapshot process’ address space.
[in]	size	The size of the memory region to snapshot.

MergeWithOtherSnapshot()

template<class ProcessReaderType>

const MemorySnapshot* crashpad::internal::MemorySnapshotGeneric< ProcessReaderType >::MergeWithOtherSnapshot ( const MemorySnapshot *  other ) const

inlineoverridevirtual

Creates a new MemorySnapshot based on merging this one with other.

The ranges described by the two snapshots must either overlap or abut, and must be of the same concrete type.

Returns

A newly allocated MemorySnapshot representing the merged range, or nullptr with an error logged.

Implements crashpad::MemorySnapshot.

Read()

template<class ProcessReaderType>

bool crashpad::internal::MemorySnapshotGeneric< ProcessReaderType >::Read ( Delegate *  delegate ) const

inlineoverridevirtual

Calls Delegate::MemorySnapshotDelegateRead(), providing it with the memory snapshot’s data.

Implementations do not necessarily read the memory snapshot data prior to this method being called. Memory snapshot data may be loaded lazily and may be discarded after being passed to the delegate. This provides clean memory management without burdening a snapshot implementation with the requirement that it track all memory region data simultaneously.

Returns

false on failure, otherwise, the return value of Delegate::MemorySnapshotDelegateRead(), which should be true on success and false on failure.

Implements crashpad::MemorySnapshot.

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The documentation for this class was generated from the following file:

• snapshot/memory_snapshot_generic.h