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ircd::fs: Add non-blocking option passed to fd ctor's open(2) fwiw.

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This commit is contained in:
Jason Volk 2019-04-07 16:45:35 -07:00
parent 9994836db0
commit 3bed48011d
2 changed files with 4 additions and 0 deletions
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3
include/ircd/fs/fd.h
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@ -71,6 +71,9 @@ struct ircd::fs::fd::opts
/// any implied O_CREAT from the open_mode ctor and in flags too. /// any implied O_CREAT from the open_mode ctor and in flags too.
bool nocreate {false}; bool nocreate {false};
/// (O_NONBLOCK) Non-blocking behavior.
bool blocking {true};
/// Construct options from an std::ios::open_mode bitmask. /// Construct options from an std::ios::open_mode bitmask.
opts(const std::ios::openmode &); opts(const std::ios::openmode &);
opts() = default; opts() = default;

1
ircd/fs.cc
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@ -1287,6 +1287,7 @@ ircd::fs::fd::fd(const string_view &path,
flags |= opts.direct? O_DIRECT : 0UL; flags |= opts.direct? O_DIRECT : 0UL;
flags |= opts.cloexec? O_CLOEXEC : 0UL; flags |= opts.cloexec? O_CLOEXEC : 0UL;
flags &= opts.nocreate? ~O_CREAT : flags; flags &= opts.nocreate? ~O_CREAT : flags;
flags |= !opts.blocking? O_NONBLOCK : 0UL;
const mode_t &mode(opts.mask); const mode_t &mode(opts.mask);
assert((flags & ~O_CREAT) || mode != 0); assert((flags & ~O_CREAT) || mode != 0);