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LibCore: Add CIODevice::seek().

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This commit is contained in:
Andreas Kling 2019-04-16 00:51:05 +02:00
parent 1debc0a78c
commit b5759089d8
2 changed files with 13 additions and 0 deletions
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11
LibCore/CIODevice.cpp
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@ -173,3 +173,14 @@ bool CIODevice::close()
set_mode(CIODevice::NotOpen); set_mode(CIODevice::NotOpen);
return true; return true;
} }
bool CIODevice::seek(signed_qword offset)
{
int rc = lseek(m_fd, offset, SEEK_SET);
if (rc < 0) {
perror("CIODevice::seek: lseek");
return false;
}
m_buffered_data.clear();
return true;
}

2
LibCore/CIODevice.h
View file

@ -35,6 +35,8 @@ public:
bool can_read() const; bool can_read() const;
bool seek(signed_qword);
virtual bool open(CIODevice::OpenMode) = 0; virtual bool open(CIODevice::OpenMode) = 0;
virtual bool close(); virtual bool close();