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authorRich Felker <dalias@aerifal.cx>2014-06-06 15:30:28 -0400
committerRich Felker <dalias@aerifal.cx>2014-06-06 15:30:28 -0400
commit1cacc01dc0623ac6443e19580222331812bddbbc (patch)
treead6e8282c111a7ddba9e80ecd5eb0567b0d52da7 /src/stat
parent1d348566e6ab446d9c452b1b93aede74368b6618 (diff)
downloadmusl-1cacc01dc0623ac6443e19580222331812bddbbc.tar.gz
optimize SOCK_CLOEXEC fallback for socket function
the fcntl function is heavy, so make the syscall directly instead. also, avoid the code size and runtime overhead of querying the old flags, since it's reasonable to assume nothing will be set on a newly-created socket. this code is only used on old kernels which lack proper atomic close-on-exec support, so future changes that might invalidate such an assumption do not need to be considered.
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