Feature #11258 » excl_mode_v1.diff
| include/ruby/io.h | ||
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} rb_io_t;
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#define HAVE_RB_IO_T 1
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#define FMODE_READABLE 0x00000001
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#define FMODE_WRITABLE 0x00000002
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#define FMODE_READWRITE (FMODE_READABLE|FMODE_WRITABLE)
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| ... | ... | |
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#define FMODE_APPEND 0x00000040
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#define FMODE_CREATE 0x00000080
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/* #define FMODE_NOREVLOOKUP 0x00000100 */
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#define FMODE_EXCL 0x00000400
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#define FMODE_TRUNC 0x00000800
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#define FMODE_TEXTMODE 0x00001000
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/* #define FMODE_PREP 0x00010000 */
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| io.c | ||
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case FMODE_READABLE:
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return MODE_BTMODE("r", "rb", "rt");
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case FMODE_WRITABLE:
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if (fmode & FMODE_EXCL)
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return MODE_BTMODE("wx", "wbx", "wtx");
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return MODE_BTMODE("w", "wb", "wt");
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case FMODE_READWRITE:
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if (fmode & FMODE_CREATE) {
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if (fmode & FMODE_EXCL)
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return MODE_BTMODE("w+x", "wb+x", "wt+x");
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return MODE_BTMODE("w+", "wb+", "wt+");
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}
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return MODE_BTMODE("r+", "rb+", "rt+");
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| ... | ... | |
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case '+':
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fmode |= FMODE_READWRITE;
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break;
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case 'x':
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if (!(fmode & FMODE_TRUNC))
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goto error;
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fmode |= FMODE_EXCL;
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break;
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default:
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goto error;
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case ':':
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| ... | ... | |
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if (oflags & O_CREAT) {
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fmode |= FMODE_CREATE;
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}
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if (oflags & O_EXCL) {
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fmode |= FMODE_EXCL;
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}
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#ifdef O_BINARY
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if (oflags & O_BINARY) {
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fmode |= FMODE_BINMODE;
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| ... | ... | |
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if (fmode & FMODE_CREATE) {
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oflags |= O_CREAT;
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}
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if (fmode & FMODE_EXCL) {
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oflags |= O_EXCL;
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}
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#ifdef O_BINARY
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if (fmode & FMODE_BINMODE) {
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oflags |= O_BINARY;
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| ... | ... | |
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#else
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# define MODE_BINARY(a,b) (a)
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#endif
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#define MODE_BINARY_EXCL(a,b,c,d) \
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((oflags & O_EXCL) ? MODE_BINARY(d, c) : MODE_BINARY(b, a))
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int accmode = oflags & (O_RDONLY|O_WRONLY|O_RDWR);
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if (oflags & O_APPEND) {
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if (accmode == O_WRONLY) {
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| ... | ... | |
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case O_RDONLY:
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return MODE_BINARY("r", "rb");
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case O_WRONLY:
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return MODE_BINARY("w", "wb");
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return MODE_BINARY_EXCL("w", "wb", "wx", "wbx");
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case O_RDWR:
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if (oflags & O_CREAT)
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return MODE_BINARY_EXCL("w+", "wb+", "w+x", "wb+x");
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return MODE_BINARY("r+", "rb+");
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}
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}
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| test/ruby/test_file.rb | ||
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assert_file.not_exist?(path)
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end
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end
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def test_exclusive_mode
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Dir.mktmpdir('feature11258') do |tmpdir|
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fname = "#{tmpdir}/tmp.txt"
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# file must be created and not just opened
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assert_nothing_raised { File.new(fname, 'wx').close }
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assert_raise(Errno::EEXIST) { File.new(fname, 'wx') }
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# mode must not be read or append mode
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assert_raise(ArgumentError) { File.new(fname, 'rx') }
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assert_raise(ArgumentError) { File.new(fname, 'ax') }
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end
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end
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end
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