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root/radiance/src/rt/persist.c

Comparing src/rt/persist.c (file contents):
Revision 2.8 by greg, Wed Mar 3 09:07:52 1993 UTC vs.
Revision 2.9 by greg, Thu Apr 1 08:55:37 1993 UTC

#	Line 180 | Line 180 | io_process()           /* just act as conduits to and from actu
180		error(SYSTEM, "cannot open output pipe in io_process");
181		}
182		/* pass input to output */
183	<	cp = buf; n = sizeof(buf);
184	<	/* do as much as we can each way */
185	<	while ((nr = read(0, cp, n)) > 0) {
186	<	nr += cp-buf;
187	<	if ((n = write(1, buf, nr)) <= 0)
188	<	goto writerr;
189	<	cp = buf;
190	<	while (n < nr)
191	<	*cp++ = buf[n++];
192	<	n = sizeof(buf) - (cp-buf);
193	<	}
183	>	/* read as much as we can, write all of it */
184	>	while ((nr = read(0, cp=buf, sizeof(buf))) > 0)
185	>	do {
186	>	if ((n = write(1, cp, nr)) <= 0)
187	>	goto writerr;
188	>	cp += n;
189	>	} while ((nr -= n) > 0);
190		if (nr < 0)
191		error(SYSTEM, "read error in io_process");
192		close(0);               /* close input */
197	–	nr = cp-buf;            /* write remainder */
198	–	cp = buf;
199	–	while (nr > 0) {
200	–	if ((n = write(1, cp, nr)) <= 0)
201	–	goto writerr;
202	–	cp += n;
203	–	nr -= n;
204	–	}
193		close(1);               /* close output */
194		if (pid)                /* parent waits for child */
195		wait(0);

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