static int print_input(int sd, int events, void *wp_)
{
int ret, pkt = 0;
simple_worker *wp = (simple_worker *)wp_;
struct kvvec kvv = KVVEC_INITIALIZER;
char *buf;
unsigned long tot_bytes = 0, size;
/*
* if some command filled the buffer, we grow it and read some
* more until we hit the limit
* @todo Define a limit :p
*/
size = iocache_size(wp->ioc);
if (!iocache_capacity(wp->ioc)) {
if (iocache_size(wp->ioc) < MAX_IOCACHE_SIZE) {
/* double the size */
iocache_grow(wp->ioc, iocache_size(wp->ioc));
printf("Growing iocache for worker %d. sizes old/new %lu/%lu\n",
wp->pid, size, iocache_size(wp->ioc));
} else {
printf("iocache_size() for worker %d is already at max\n", wp->pid);
}
}
ret = iocache_read(wp->ioc, sd);
if (!ret) {
printf("Worker with pid %d seems to have crashed. Exiting\n", wp->pid);
exit(1);
}
if (ret < 0) {
printf("iocache_read() from worker %d returned %d: %m\n", wp->pid, ret);
return 0;
}
printf("read %d bytes from worker with pid %d::\n", ret, wp->pid);
while ((buf = worker_ioc2msg(wp->ioc, &size, 0))) {
int i, ret;
tot_bytes += size;
ret = worker_buf2kvvec_prealloc(&kvv, buf, (unsigned int)size, KVVEC_ASSIGN);
if (!ret < 0) {
printf("main: Failed to parse buffer of size %lu to key/value vector\n", size);
continue;
}
for (i = 0; i < kvv.kv_pairs; i++) {
struct key_value *kv = &kvv.kv[i];
if (!i && memcmp(kv->key, buf, kv->key_len)) {
printf("### kv[0]->key doesn't match buf. error in kvvec?\n");
}
printf("main: %2d.%02d: %s=%s\n", pkt, i, kv->key, kv->value);
}
pkt++;
}
printf("iocache: available: %lu; size: %lu; capacity: %lu\n",
iocache_available(wp->ioc), iocache_size(wp->ioc), iocache_capacity(wp->ioc));
printf("Got %d packets in %ld bytes (ret: %d)\n", pkt, tot_bytes, ret);
return 0;
}
/*
* Three cases to handle:
* - buf has data, iocache doesn't.
* - iocache has data, buf doesn't.
* - both buf and iocache has data.
*/
int iocache_sendto(iocache *ioc, int fd, char *buf, unsigned int len, int flags, const struct sockaddr *dest_addr, socklen_t addrlen)
{
int sent;
errno = 0;
if (!ioc)
return -1;
if (!ioc->ioc_buflen && !len)
return 0;
if (ioc->ioc_buf && iocache_available(ioc)) {
if (buf && len) {
/* copy buf and len to iocache buffer to use just one write */
if (iocache_capacity(ioc) < len) {
if (iocache_grow(ioc, iocache_size(ioc)) < 0)
return -1;
}
if (iocache_add(ioc, buf, len) < 0)
return -1;
}
buf = ioc->ioc_buf;
len = iocache_available(ioc);
}
sent = sendto(fd, buf, len, flags, dest_addr, addrlen);
if (sent < 1)
return -errno;
if (iocache_available(ioc))
iocache_use_size(ioc, sent);
return sent;
}
int iocache_add(iocache *ioc, char *buf, unsigned int len)
{
if (!ioc || iocache_capacity(ioc) < len)
return -1;
memcpy(ioc->ioc_buf + ioc->ioc_offset, buf, len);
ioc->ioc_buflen += len;
return ioc->ioc_buflen - ioc->ioc_offset;
}
static int handle_worker_result(int sd, int events, void *arg)
{
wproc_object_job *oj = NULL;
char *buf, *error_reason = NULL;
unsigned long size;
int ret;
static struct kvvec kvv = KVVEC_INITIALIZER;
struct wproc_worker *wp = (struct wproc_worker *)arg;
if(iocache_capacity(wp->ioc) == 0) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "wproc: iocache_capacity() is 0 for worker %s.\n", wp->name);
}
ret = iocache_read(wp->ioc, wp->sd);
if (ret < 0) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "wproc: iocache_read() from %s returned %d: %s\n",
wp->name, ret, strerror(errno));
return 0;
} else if (ret == 0) {
logit(NSLOG_INFO_MESSAGE, TRUE, "wproc: Socket to worker %s broken, removing", wp->name);
wproc_num_workers_online--;
iobroker_unregister(nagios_iobs, sd);
if (workers.len <= 0) {
/* there aren't global workers left, we can't run any more checks
* we should try respawning a few of the standard ones
*/
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: All our workers are dead, we can't do anything!");
}
remove_worker(wp);
fanout_destroy(wp->jobs, fo_reassign_wproc_job);
wp->jobs = NULL;
wproc_destroy(wp, 0);
return 0;
}
while ((buf = worker_ioc2msg(wp->ioc, &size, 0))) {
struct wproc_job *job;
wproc_result wpres;
/* log messages are handled first */
if (size > 5 && !memcmp(buf, "log=", 4)) {
logit(NSLOG_INFO_MESSAGE, TRUE, "wproc: %s: %s\n", wp->name, buf + 4);
continue;
}
/* for everything else we need to actually parse */
if (buf2kvvec_prealloc(&kvv, buf, size, '=', '\0', KVVEC_ASSIGN) <= 0) {
logit(NSLOG_RUNTIME_ERROR, TRUE,
"wproc: Failed to parse key/value vector from worker response with len %lu. First kv=%s",
size, buf ? buf : "(NULL)");
continue;
}
memset(&wpres, 0, sizeof(wpres));
wpres.job_id = -1;
wpres.type = -1;
wpres.response = &kvv;
parse_worker_result(&wpres, &kvv);
job = get_job(wp, wpres.job_id);
if (!job) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "wproc: Job with id '%d' doesn't exist on %s.\n",
wpres.job_id, wp->name);
continue;
}
if (wpres.type != job->type) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "wproc: %s claims job %d is type %d, but we think it's type %d\n",
wp->name, job->id, wpres.type, job->type);
break;
}
oj = (wproc_object_job *)job->arg;
/*
* ETIME ("Timer expired") doesn't really happen
* on any modern systems, so we reuse it to mean
* "program timed out"
*/
if (wpres.error_code == ETIME) {
wpres.early_timeout = TRUE;
}
if (wpres.early_timeout) {
asprintf(&error_reason, "timed out after %.2fs", tv_delta_f(&wpres.start, &wpres.stop));
}
else if (WIFSIGNALED(wpres.wait_status)) {
asprintf(&error_reason, "died by signal %d%s after %.2f seconds",
WTERMSIG(wpres.wait_status),
WCOREDUMP(wpres.wait_status) ? " (core dumped)" : "",
tv_delta_f(&wpres.start, &wpres.stop));
}
else if (job->type != WPJOB_CHECK && WEXITSTATUS(wpres.wait_status) != 0) {
asprintf(&error_reason, "is a non-check helper but exited with return code %d",
WEXITSTATUS(wpres.wait_status));
}
if (error_reason) {
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: %s job %d from worker %s %s",
wpjob_type_name(job->type), job->id, wp->name, error_reason);
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: command: %s\n", job->command);
if (job->type != WPJOB_CHECK && oj) {
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: host=%s; service=%s; contact=%s\n",
oj->host_name ? oj->host_name : "(none)",
oj->service_description ? oj->service_description : "(none)",
oj->contact_name ? oj->contact_name : "(none)");
} else if (oj) {
struct check_result *cr = (struct check_result *)job->arg;
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: host=%s; service=%s;\n",
cr->host_name, cr->service_description);
}
logit(NSLOG_RUNTIME_ERROR, TRUE, "wproc: early_timeout=%d; exited_ok=%d; wait_status=%d; error_code=%d;\n",
wpres.early_timeout, wpres.exited_ok, wpres.wait_status, wpres.error_code);
wproc_logdump_buffer(NSLOG_RUNTIME_ERROR, TRUE, "wproc: stderr", wpres.outerr);
wproc_logdump_buffer(NSLOG_RUNTIME_ERROR, TRUE, "wproc: stdout", wpres.outstd);
}
my_free(error_reason);
switch (job->type) {
case WPJOB_CHECK:
ret = handle_worker_check(&wpres, wp, job);
break;
case WPJOB_NOTIFY:
if (wpres.early_timeout) {
if (oj->service_description) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "Warning: Notifying contact '%s' of service '%s' on host '%s' by command '%s' timed out after %.2f seconds\n",
oj->contact_name, oj->service_description,
oj->host_name, job->command,
tv2float(&wpres.runtime));
} else {
logit(NSLOG_RUNTIME_WARNING, TRUE, "Warning: Notifying contact '%s' of host '%s' by command '%s' timed out after %.2f seconds\n",
oj->contact_name, oj->host_name,
job->command, tv2float(&wpres.runtime));
}
}
break;
case WPJOB_OCSP:
if (wpres.early_timeout) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "Warning: OCSP command '%s' for service '%s' on host '%s' timed out after %.2f seconds\n",
job->command, oj->service_description, oj->host_name,
tv2float(&wpres.runtime));
}
break;
case WPJOB_OCHP:
if (wpres.early_timeout) {
logit(NSLOG_RUNTIME_WARNING, TRUE, "Warning: OCHP command '%s' for host '%s' timed out after %.2f seconds\n",
job->command, oj->host_name, tv2float(&wpres.runtime));
}
break;
case WPJOB_GLOBAL_SVC_EVTHANDLER:
if (wpres.early_timeout) {
logit(NSLOG_EVENT_HANDLER | NSLOG_RUNTIME_WARNING, TRUE,
"Warning: Global service event handler command '%s' timed out after %.2f seconds\n",
job->command, tv2float(&wpres.runtime));
}
break;
case WPJOB_SVC_EVTHANDLER:
if (wpres.early_timeout) {
logit(NSLOG_EVENT_HANDLER | NSLOG_RUNTIME_WARNING, TRUE,
"Warning: Service event handler command '%s' timed out after %.2f seconds\n",
job->command, tv2float(&wpres.runtime));
}
break;
case WPJOB_GLOBAL_HOST_EVTHANDLER:
if (wpres.early_timeout) {
logit(NSLOG_EVENT_HANDLER | NSLOG_RUNTIME_WARNING, TRUE,
"Warning: Global host event handler command '%s' timed out after %.2f seconds\n",
job->command, tv2float(&wpres.runtime));
}
break;
case WPJOB_HOST_EVTHANDLER:
if (wpres.early_timeout) {
logit(NSLOG_EVENT_HANDLER | NSLOG_RUNTIME_WARNING, TRUE,
"Warning: Host event handler command '%s' timed out after %.2f seconds\n",
job->command, tv2float(&wpres.runtime));
}
break;
case WPJOB_CALLBACK:
run_job_callback(job, &wpres, 0);
break;
default:
logit(NSLOG_RUNTIME_WARNING, TRUE, "Worker %d: Unknown jobtype: %d\n", wp->pid, job->type);
break;
}
destroy_job(job);
}
return 0;
}
