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system/FileDescriptor: add method Skip()

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This commit is contained in:
Max Kellermann 2016-02-19 18:18:12 +01:00
parent a5e8269c72
commit 8e0e4d7c04
1 changed files with 4 additions and 0 deletions
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4
src/system/FileDescriptor.hxx
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@ -146,6 +146,10 @@ public:
return lseek(Get(), offset, SEEK_SET);
}
off_t Skip(off_t offset) {
return lseek(Get(), offset, SEEK_CUR);
}
gcc_pure
off_t Tell() const {
return lseek(Get(), 0, SEEK_CUR);