diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/dd.c | 12 |
1 files changed, 11 insertions, 1 deletions
@@ -66,6 +66,12 @@ static void process_signals (void); # define SIGINFO SIGUSR1 #endif +/* This may belong in GNULIB's fcntl module instead. + Define O_CIO to 0 if it is not supported by this OS. */ +#ifndef O_CIO +# define O_CIO 0 +#endif + #if ! HAVE_FDATASYNC # define fdatasync(fd) (errno = ENOSYS, -1) #endif @@ -264,6 +270,7 @@ enum /* Use a value that is larger than that of any other O_ symbol. */ O_FULLBLOCK = ((MAX (O_APPEND, MAX (O_BINARY, + MAX (O_CIO, MAX (O_DIRECT, MAX (O_DIRECTORY, MAX (O_DSYNC, @@ -272,7 +279,7 @@ enum MAX (O_NOFOLLOW, MAX (O_NOLINKS, MAX (O_NONBLOCK, - MAX (O_SYNC, O_TEXT)))))))))))) << 1) + MAX (O_SYNC, O_TEXT))))))))))))) << 1) }; /* Ensure that we didn't shift it off the end. */ @@ -288,6 +295,7 @@ static struct symbol_value const flags[] = { {"append", O_APPEND}, {"binary", O_BINARY}, + {"cio", O_CIO}, {"direct", O_DIRECT}, {"directory", O_DIRECTORY}, {"dsync", O_DSYNC}, @@ -508,6 +516,8 @@ Each FLAG symbol may be:\n\ \n\ append append mode (makes sense only for output; conv=notrunc suggested)\n\ "), stdout); + if (O_CIO) + fputs (_(" cio use concurrent I/O for data\n"), stdout); if (O_DIRECT) fputs (_(" direct use direct I/O for data\n"), stdout); if (O_DIRECTORY) |