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| author | Andrew J. Schorr <aschorr@telemetry-investments.com> | 2015-01-05 12:37:43 -0500 |
|---|---|---|
| committer | Andrew J. Schorr <aschorr@telemetry-investments.com> | 2015-01-05 12:37:43 -0500 |
| commit | 0d867aa42ea8c3487678dcceea484c10c88914cb (patch) | |
| tree | aa4e0d5dbc795b253d3bfa280995fa9ec8a27009 /io.c | |
| parent | a29f6a213fb18c199a4b1358327dc6d21f59eb64 (diff) | |
| download | egawk-0d867aa42ea8c3487678dcceea484c10c88914cb.tar.gz egawk-0d867aa42ea8c3487678dcceea484c10c88914cb.tar.bz2 egawk-0d867aa42ea8c3487678dcceea484c10c88914cb.zip | |
Fix bug in io.c:wait_any where we may not have waited for the requested child process exit status.
Diffstat (limited to 'io.c')
| -rw-r--r-- | io.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -2250,7 +2250,12 @@ wait_any(int interesting) /* pid of interest, if any */ #endif for (;;) { # if defined(HAVE_WAITPID) && defined(WNOHANG) - if ((pid = waitpid(-1, & status, WNOHANG)) == 0) + /* + * N.B. If the caller wants status for a specific child process + * (i.e. interesting is non-zero), then we must hang until we + * get exit status for that child. + */ + if ((pid = waitpid(-1, & status, (interesting ? 0 : WNOHANG))) == 0) /* No children have exited */ break; # elif defined(HAVE_SYS_WAIT_H) /* POSIX compatible sys/wait.h */ |