diff options
Diffstat (limited to 'io.c')
| -rw-r--r-- | io.c | 29 |
1 files changed, 29 insertions, 0 deletions
@@ -1319,6 +1319,34 @@ rb_io_fsync(VALUE io) #define rb_io_fsync rb_f_notimplement #endif +#ifdef HAVE_FDATASYNC +/* + * call-seq: + * ios.fdatasync => 0 or nil + * + * Immediately writes all buffered data in <em>ios</em> to disk. + * Returns <code>nil</code> if the underlying operating system does not + * support <em>fdatasync(2)</em>. + */ + +static VALUE +rb_io_fdatasync(VALUE io) +{ + rb_io_t *fptr; + + io = GetWriteIO(io); + GetOpenFile(io, fptr); + + if (io_fflush(fptr) < 0) + rb_sys_fail(0); + if (fdatasync(fptr->fd) < 0) + rb_sys_fail_path(fptr->pathv); + return INT2FIX(0); +} +#else +#define rb_io_fdatasync rb_f_notimplement +#endif + /* * call-seq: * ios.fileno => fixnum @@ -8781,6 +8809,7 @@ Init_IO(void) rb_define_method(rb_cIO, "to_io", rb_io_to_io, 0); rb_define_method(rb_cIO, "fsync", rb_io_fsync, 0); + rb_define_method(rb_cIO, "fdatasync", rb_io_fdatasync, 0); rb_define_method(rb_cIO, "sync", rb_io_sync, 0); rb_define_method(rb_cIO, "sync=", rb_io_set_sync, 1); |