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system/FileDescriptor: add method Tell()

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Max Kellermann
2015-03-24 21:58:36 +01:00
parent 7f6e1fbc8d
commit 077e95da85
1 changed files with 5 additions and 0 deletions
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5
src/system/FileDescriptor.hxx
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@@ -146,6 +146,11 @@ public:
return lseek(Get(), offset, SEEK_SET); return lseek(Get(), offset, SEEK_SET);
} }
gcc_pure
off_t Tell() const {
return lseek(Get(), 0, SEEK_CUR);
}
/** /**
* Returns the size of the file in bytes, or -1 on error. * Returns the size of the file in bytes, or -1 on error.
*/ */