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19990920

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@533 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 1999-09-20 07:14:18 +00:00
parent 656cbdf2b7
commit 70a444b0cc
6 changed files with 45 additions and 14 deletions
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45
io.c
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@ -442,6 +442,29 @@ read_all(port)
return str;
}
static size_t
io_fread(ptr, len, f)
char *ptr;
size_t len;
FILE *f;
{
size_t n = len;
while (n--) {
*ptr = getc(f);
if (*ptr == EOF) {
*ptr = '\0';
break;
}
ptr++;
if (!READ_DATA_PENDING(f)) {
rb_thread_wait_fd(fileno(f));
}
}
return len - n - 1;
}
static VALUE
io_read(argc, argv, io)
int argc;
@ -465,9 +488,7 @@ io_read(argc, argv, io)
str = rb_str_new(0, len);
READ_CHECK(fptr->f);
TRAP_BEG;
n = fread(RSTRING(str)->ptr, 1, len, fptr->f);
TRAP_END;
n = io_fread(RSTRING(str)->ptr, len, fptr->f);
if (n == 0) {
if (feof(fptr->f)) return Qnil;
rb_sys_fail(fptr->path);
@ -564,9 +585,7 @@ rb_io_gets_internal(argc, argv, io)
}
else {
READ_CHECK(f);
TRAP_BEG;
cnt = fread(buf, 1, sizeof(buf), f);
TRAP_END;
cnt = io_fread(buf, sizeof(buf), f);
if (cnt == 0) {
if (ferror(f)) rb_sys_fail(fptr->path);
c = EOF;
@ -1388,14 +1407,18 @@ pipe_finalize(fptr)
}
#endif
void
rb_io_synchronized(fptr)
OpenFile *fptr;
{
fptr->mode |= FMODE_SYNC;
}
void
rb_io_unbuffered(fptr)
OpenFile *fptr;
{
if (fptr->f2 == 0) rb_raise(rb_eTypeError, "non-writable fptr");
if (fptr->f != 0) setbuf(fptr->f, NULL);
setbuf(fptr->f2, NULL);
fptr->mode |= FMODE_SYNC;
rb_io_synchronized(fptr);
}
static VALUE
@ -1421,7 +1444,7 @@ pipe_open(pname, mode)
if (modef & FMODE_READABLE) fptr->f = f;
if (modef & FMODE_WRITABLE) {
fptr->f2 = f;
rb_io_unbuffered(fptr);
rb_io_synchronized(fptr);
}
return (VALUE)port;
}