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merges r21709, r21710 from trunk into ruby_1_9_1.

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* include/ruby/io.h (FMODE_EOF): EOF flag on TTY.
* io.c (io_set_eof): sets EOF flag for TTY.
* io.c (io_seek): clears EOF flag.
* io.c (io_fillbuf): returns EOF if already met EOF.  [ruby-dev:37798]
* io.c (io_fillbuf, io_fread, io_getpartial): sets EOF.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@21816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
yugui 2009-01-28 09:20:37 +00:00
parent 884264dc4d
commit 62b07ab133
3 changed files with 28 additions and 3 deletions
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18
io.c
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@ -353,7 +353,8 @@ flush_before_seek(rb_io_t *fptr)
return fptr;
}
#define io_seek(fptr, ofs, whence) lseek(flush_before_seek(fptr)->fd, ofs, whence)
#define io_set_eof(fptr) (void)(((fptr)->mode & FMODE_TTY) && ((fptr)->mode |= FMODE_EOF))
#define io_seek(fptr, ofs, whence) (fptr->mode &= ~FMODE_EOF, lseek(flush_before_seek(fptr)->fd, ofs, whence))
#define io_tell(fptr) lseek(flush_before_seek(fptr)->fd, 0, SEEK_CUR)
#ifndef SEEK_CUR
@ -1147,6 +1148,9 @@ io_fillbuf(rb_io_t *fptr)
{
int r;
if (fptr->mode & FMODE_EOF) {
return -1;
}
if (fptr->rbuf == NULL) {
fptr->rbuf_off = 0;
fptr->rbuf_len = 0;
@ -1165,8 +1169,10 @@ io_fillbuf(rb_io_t *fptr)
}
fptr->rbuf_off = 0;
fptr->rbuf_len = r;
if (r == 0)
if (r == 0) {
io_set_eof(fptr);
return -1; /* EOF */
}
}
return 0;
}
@ -1422,7 +1428,10 @@ io_fread(VALUE str, long offset, rb_io_t *fptr)
if (READ_DATA_PENDING(fptr) == 0) {
while (n > 0) {
c = rb_read_internal(fptr->fd, RSTRING_PTR(str)+offset, n);
if (c == 0) break;
if (c == 0) {
io_set_eof(fptr);
break;
}
if (c < 0) {
rb_sys_fail_path(fptr->pathv);
}
@ -1729,6 +1738,9 @@ io_getpartial(int argc, VALUE *argv, VALUE io, int nonblock)
goto again;
rb_sys_fail_path(fptr->pathv);
}
else if (n == 0) {
io_set_eof(fptr);
}
}
rb_str_resize(str, n);