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| author | Simon Hausmann <simon.hausmann@qt.io> | 2017-02-22 12:46:59 +0100 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@qt.io> | 2017-02-24 11:35:25 +0000 |
| commit | d5078161aadac7bb36862d8eb0d6d8c27eb58c60 (patch) | |
| tree | b33fd1d0f0bd2515c3db6a1c0c94d34be7622c51 /src/corelib/io/qabstractfileengine_p.h | |
| parent | f971a0d65cc4bc64dc61bdd2a4b659b382eb996f (diff) | |
Speed up QFile::copy on Linux file systems that support cloning
Originally inherited from Btrfs, recent Linux kernels have a system call
that allows cloning the contents of a file from another one if the
underlying file system supports it.
Change-Id: I9df66b65faef99f3bbed8a88fb6b6009baeef32e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/io/qabstractfileengine_p.h')
| -rw-r--r-- | src/corelib/io/qabstractfileengine_p.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/corelib/io/qabstractfileengine_p.h b/src/corelib/io/qabstractfileengine_p.h index 48b3dec324..dbf0d77b15 100644 --- a/src/corelib/io/qabstractfileengine_p.h +++ b/src/corelib/io/qabstractfileengine_p.h @@ -147,6 +147,7 @@ public: virtual QDateTime fileTime(FileTime time) const; virtual void setFileName(const QString &file); virtual int handle() const; + virtual bool clone(int sourceHandle); bool atEnd() const; uchar *map(qint64 offset, qint64 size, QFile::MemoryMapFlags flags); bool unmap(uchar *ptr); |