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ircd::fs: Add fd::opts getter from open fd.

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This commit is contained in:
Jason Volk 2019-04-22 09:09:20 -07:00
parent d08bcc2f32
commit 7d55468511
2 changed files with 24 additions and 0 deletions
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1
include/ircd/fs/fd.h
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@ -33,6 +33,7 @@ struct ircd::fs::fd
operator const int &() const; operator const int &() const;
operator bool() const; operator bool() const;
bool operator!() const; bool operator!() const;
opts options() const;
int release() noexcept; int release() noexcept;

23
ircd/fs.cc
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@ -1630,6 +1630,29 @@ noexcept
return fdno; return fdno;
} }
ircd::fs::fd::opts
ircd::fs::fd::options()
const
{
opts ret;
ret.flags = syscall(::fcntl, int(*this), F_GETFL, 0);
if((ret.flags & O_RDONLY) == O_RDONLY)
ret.mode = std::ios::in;
if((ret.flags & O_WRONLY) == O_WRONLY)
ret.mode = std::ios::out;
if((ret.flags & O_RDWR) == O_RDWR)
ret.mode = std::ios::in | std::ios::out;
ret.direct = ret.flags & O_DIRECT;
ret.cloexec = ret.flags & O_CLOEXEC;
ret.nocreate = ~ret.flags & O_CREAT;
ret.blocking = ret.flags & O_NONBLOCK;
return ret;
}
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
// //
// fs/device.h // fs/device.h