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| author | Philipp Stephani <phst@google.com> | 2021-01-10 17:59:29 +0100 |
|---|---|---|
| committer | Philipp Stephani <phst@google.com> | 2021-01-10 17:59:29 +0100 |
| commit | 94ada232b1515771a8ec4dc62483c42b6cdbc3a0 (patch) | |
| tree | 2d25ebc774f816ae78b1278534f9aab505e11266 | |
| parent | ad830e5f33df393fb5bd54a58b796ed2c5f59fcb (diff) | |
| download | emacs-scratch/sigchld-fd.tar.gz | |
Don't crash if no asynchronous process has been created yet.scratch/sigchld-fd
* src/process.c (wait_reading_process_output): Allow
child_signal_read_fd < 0.
| -rw-r--r-- | src/process.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/process.c b/src/process.c index 474c87089e0..aca87f8ed35 100644 --- a/src/process.c +++ b/src/process.c @@ -5413,9 +5413,9 @@ wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd, an asynchronous process. Otherwise this might deadlock if we receive a SIGCHLD during `pselect'. */ int child_fd = child_signal_read_fd; - eassert (0 <= child_fd); eassert (child_fd < FD_SETSIZE); - FD_SET (child_fd, &Available); + if (0 <= child_fd) + FD_SET (child_fd, &Available); /* If frame size has changed or the window is newly mapped, redisplay now, before we start to wait. There is a race |