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| author | Denys Vlasenko | 2010-11-14 01:59:55 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2010-11-14 01:59:55 +0100 |
| commit | c08c3f5d262acab7082cca88d0b2a329184b133b (patch) | |
| tree | f43b0d66a484627f498198cb71b9d69f51a71d03 /shell/hush.c | |
| parent | 2b662c5deceb43a10f815424de85c1416c379e2a (diff) | |
| download | busybox-c08c3f5d262acab7082cca88d0b2a329184b133b.zip busybox-c08c3f5d262acab7082cca88d0b2a329184b133b.tar.gz | |
hush: preparatory patch for set -o pipefail support
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/hush.c')
| -rw-r--r-- | shell/hush.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/shell/hush.c b/shell/hush.c index 9dd30c4..126aaf0 100644 --- a/shell/hush.c +++ b/shell/hush.c @@ -6309,7 +6309,8 @@ static int checkjobs(struct pipe *fg_pipe) #endif /* Were we asked to wait for fg pipe? */ if (fg_pipe) { - for (i = 0; i < fg_pipe->num_cmds; i++) { + i = fg_pipe->num_cmds; + while (--i >= 0) { debug_printf_jobs("check pid %d\n", fg_pipe->cmds[i].pid); if (fg_pipe->cmds[i].pid != childpid) continue; @@ -6338,19 +6339,19 @@ static int checkjobs(struct pipe *fg_pipe) } debug_printf_jobs("fg_pipe: alive_cmds %d stopped_cmds %d\n", fg_pipe->alive_cmds, fg_pipe->stopped_cmds); - if (fg_pipe->alive_cmds - fg_pipe->stopped_cmds <= 0) { + if (fg_pipe->alive_cmds == fg_pipe->stopped_cmds) { /* All processes in fg pipe have exited or stopped */ /* Note: *non-interactive* bash does not continue if all processes in fg pipe * are stopped. Testcase: "cat | cat" in a script (not on command line!) * and "killall -STOP cat" */ if (G_interactive_fd) { #if ENABLE_HUSH_JOB - if (fg_pipe->alive_cmds) + if (fg_pipe->alive_cmds != 0) insert_bg_job(fg_pipe); #endif return rcode; } - if (!fg_pipe->alive_cmds) + if (fg_pipe->alive_cmds == 0) return rcode; } /* There are still running processes in the fg pipe */ |