instance method

FileTest#pipe?

(::path | ::io file_name) -> bool

File.pipe?(filepath) → true or false

static VALUE
rb_file_pipe_p(VALUE obj, VALUE fname)
{
#ifdef S_IFIFO
#  ifndef S_ISFIFO
#    define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
#  endif

    struct stat st;

    if (rb_stat(fname, &st) < 0) return Qfalse;
    if (S_ISFIFO(st.st_mode)) return Qtrue;

#endif
    return Qfalse;
}

Returns true if filepath points to a pipe, false otherwise:

Example

File.mkfifo('tmp/fifo')
File.pipe?('tmp/fifo') # => true
File.pipe?('t.txt')    # => false

See also #owned? #readable? #identical? #readable_real? also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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