>From ea23b4519698c9695a851508c3455f36ff94115b Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Tue, 5 Jul 2016 20:40:40 +0200 Subject: [PATCH] Fix open-network-stream responsiveness Problem reported by Christer Ekholm (Bug#23864). Backport from master. * src/process.c (wait_reading_process_output): Fix typo introduced in 2015-07-06T02:19:13Z!eggert@cs.ucla.edu when wait == INFINITY and got_output_end_time is invalid. In this case the code should break, not continue. --- src/process.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/src/process.c b/src/process.c index 14d7b6d..0593429 100644 --- a/src/process.c +++ b/src/process.c @@ -4911,16 +4911,22 @@ wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, haven't lowered our timeout due to timers or SIGIO and have waited a long amount of time due to repeated timers. */ + struct timespec huge_timespec + = make_timespec (TYPE_MAXIMUM (time_t), 2 * TIMESPEC_RESOLUTION); + struct timespec cmp_time = huge_timespec; if (wait < TIMEOUT) break; - struct timespec cmp_time - = (wait == TIMEOUT - ? end_time - : (!process_skipped && got_some_output > 0 - && (timeout.tv_sec > 0 || timeout.tv_nsec > 0)) - ? got_output_end_time - : invalid_timespec ()); - if (timespec_valid_p (cmp_time)) + if (wait == TIMEOUT) + cmp_time = end_time; + if (!process_skipped && got_some_output > 0 + && (timeout.tv_sec > 0 || timeout.tv_nsec > 0)) + { + if (!timespec_valid_p (got_output_end_time)) + break; + if (timespec_cmp (got_output_end_time, cmp_time) < 0) + cmp_time = got_output_end_time; + } + if (timespec_cmp (cmp_time, huge_timespec) < 0) { now = current_timespec (); if (timespec_cmp (cmp_time, now) <= 0) -- 2.5.5