From 4c49ab0e7a7f9f14f4308476257cd3548d0b4694 Mon Sep 17 00:00:00 2001 From: Thomas Hindoe Paaboel Andersen Date: Sat, 7 Dec 2013 21:53:37 +0100 Subject: [PATCH] systemctl: fix and refactor wait_for_jobs wait_for_jobs was ignoring the errors from the jobs stored in r. It would only ever return whether the call to sd_bus_remove_filter went ok. This patch changes it to return the first job related error encountered. If a job related error is found, then the result of the call to sd_bus_remove_filter is ignored. wait_for_jobs was a bit hard to read so I split it up to avoid the goto and deep nesting. --- src/systemctl/systemctl.c | 98 +++++++++++++++++++++++++-------------- 1 file changed, 62 insertions(+), 36 deletions(-) diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c index 3248f512b..16dfddb8e 100644 --- a/src/systemctl/systemctl.c +++ b/src/systemctl/systemctl.c @@ -1843,59 +1843,85 @@ static int enable_wait_for_jobs(sd_bus *bus) { return 0; } +static int bus_process_wait(sd_bus *bus) { + int r; + + for (;;) { + r = sd_bus_process(bus, NULL); + if (r < 0) + return r; + if (r > 0) + return 0; + r = sd_bus_wait(bus, (uint64_t) -1); + if (r < 0) + return r; + } +} + +static int check_wait_response(WaitData *d) { + int r = 0; + + assert(d->result); + + if (!arg_quiet) { + if (streq(d->result, "timeout")) + log_error("Job for %s timed out.", strna(d->name)); + else if (streq(d->result, "canceled")) + log_error("Job for %s canceled.", strna(d->name)); + else if (streq(d->result, "dependency")) + log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d->name)); + else if (!streq(d->result, "done") && !streq(d->result, "skipped")) + log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d->name), strna(d->name)); + } + + if (streq(d->result, "timeout")) + r = -ETIME; + else if (streq(d->result, "canceled")) + r = -ECANCELED; + else if (streq(d->result, "dependency")) + r = -EIO; + else if (!streq(d->result, "done") && !streq(d->result, "skipped")) + r = -EIO; + + return r; +} + static int wait_for_jobs(sd_bus *bus, Set *s) { WaitData d = { .set = s }; - int r; + int r = 0, q; assert(bus); assert(s); - r = sd_bus_add_filter(bus, wait_filter, &d); - if (r < 0) + q = sd_bus_add_filter(bus, wait_filter, &d); + if (q < 0) return log_oom(); while (!set_isempty(s)) { - for (;;) { - r = sd_bus_process(bus, NULL); - if (r < 0) - return r; - if (r > 0) - break; - r = sd_bus_wait(bus, (uint64_t) -1); - if (r < 0) - return r; - } - - if (!d.result) - goto free_name; + q = bus_process_wait(bus); + if (q < 0) + return q; - if (!arg_quiet) { - if (streq(d.result, "timeout")) - log_error("Job for %s timed out.", strna(d.name)); - else if (streq(d.result, "canceled")) - log_error("Job for %s canceled.", strna(d.name)); - else if (streq(d.result, "dependency")) - log_error("A dependency job for %s failed. See 'journalctl -xn' for details.", strna(d.name)); - else if (!streq(d.result, "done") && !streq(d.result, "skipped")) - log_error("Job for %s failed. See 'systemctl status %s' and 'journalctl -xn' for details.", strna(d.name), strna(d.name)); + if (d.result) { + q = check_wait_response(&d); + /* Return the first error as it is most likely to be + * meaningful. */ + if (q < 0 && r == 0) + r = q; } - if (streq_ptr(d.result, "timeout")) - r = -ETIME; - else if (streq_ptr(d.result, "canceled")) - r = -ECANCELED; - else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped")) - r = -EIO; + free(d.name); + d.name = NULL; free(d.result); d.result = NULL; - - free_name: - free(d.name); - d.name = NULL; } - return sd_bus_remove_filter(bus, wait_filter, &d); + q = sd_bus_remove_filter(bus, wait_filter, &d); + if (q < 0 && r == 0) + r = q; + + return r; } static int check_one_unit(sd_bus *bus, const char *name, const char *good_states, bool quiet) { -- 2.30.2