crashpad::FileWriter Class Reference

A file writer implementation that wraps traditional system file operations on files accessed through the filesystem. More...

#include "util/file/file_writer.h"

Inheritance diagram for crashpad::FileWriter:

Collaboration diagram for crashpad::FileWriter:

Public Member Functions
	FileWriter (const FileWriter &)=delete
FileWriter &	operator= (const FileWriter &)=delete
bool	Open (const base::FilePath &path, FileWriteMode write_mode, FilePermissions permissions)
	Wraps LoggingOpenFileForWrite().
void	Close ()
	Wraps CheckedCloseHandle().
bool	Write (const void *data, size_t size) override
	Wraps LoggingWriteFile(), or provides an implementation with identical semantics.
bool	WriteIoVec (std::vector< WritableIoVec > *iovecs) override
	Wraps writev() on POSIX or provides an alternate implementation with identical semantics. This method will write entire buffers, continuing after a short write or after being interrupted. On non-POSIX this is a simple wrapper around Write().
FileOffset	Seek (FileOffset offset, int whence) override
	Wraps LoggingSeekFile() or provides an alternate implementation with identical semantics.
Public Member Functions inherited from crashpad::FileSeekerInterface
FileOffset	SeekGet ()
	Wraps Seek(), using SEEK_CUR to obtain the file’s current position.
bool	SeekSet (FileOffset offset)
	Wraps Seek(), using SEEK_SET, ensuring that the seek succeeded and the file is positioned as desired.

Detailed Description

A file writer implementation that wraps traditional system file operations on files accessed through the filesystem.

Member Function Documentation

Close()

void crashpad::FileWriter::Close

(

)

Wraps CheckedCloseHandle().

Note

It is only valid to call this method on an object that has had a successful Open() that has not yet been matched by a subsequent call to this method.

Open()

bool crashpad::FileWriter::Open	(	const base::FilePath &	path,
		FileWriteMode	write_mode,
		FilePermissions	permissions )

Wraps LoggingOpenFileForWrite().

Returns

true if the operation succeeded, false if it failed, with an error message logged.

Note

After a successful call, this method cannot be called again until after Close().

Seek()

FileOffset crashpad::FileWriter::Seek ( FileOffset offset, int whence )

overridevirtual

Wraps LoggingSeekFile() or provides an alternate implementation with identical semantics.

Returns

The return value of LoggingSeekFile(). -1 on failure, with an error message logged.

Note

It is only valid to call this method between a successful Open() and a Close().

Implements crashpad::FileSeekerInterface.

Write()

bool crashpad::FileWriter::Write ( const void * data, size_t size )

overridevirtual

Wraps LoggingWriteFile(), or provides an implementation with identical semantics.

Returns

true if the operation succeeded, false if it failed, with an error message logged.

Note

It is only valid to call this method between a successful Open() and a Close().

Implements crashpad::FileWriterInterface.

WriteIoVec()

bool crashpad::FileWriter::WriteIoVec ( std::vector< WritableIoVec > * iovecs )

overridevirtual

Wraps writev() on POSIX or provides an alternate implementation with identical semantics. This method will write entire buffers, continuing after a short write or after being interrupted. On non-POSIX this is a simple wrapper around Write().

Returns

true if the operation succeeded, false if it failed, with an error message logged.

Note

The contents of iovecs are undefined when this method returns.

It is only valid to call this method between a successful Open() and a Close().

Implements crashpad::FileWriterInterface.

---

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

• util/file/file_writer.h
• util/file/file_writer.cc