#include "pod.h"
#if APR_HAVE_UNISTD_H
#include <unistd.h>
#endif
AP_DECLARE(apr_status_t) ap_mpm_pod_open(apr_pool_t * p, ap_pod_t ** pod)
{
apr_status_t rv;
*pod = apr_palloc(p, sizeof(**pod));
rv = apr_file_pipe_create(&((*pod)->pod_in), &((*pod)->pod_out), p);
if (rv != APR_SUCCESS) {
return rv;
}
(*pod)->p = p;
apr_file_inherit_unset((*pod)->pod_in);
apr_file_inherit_unset((*pod)->pod_out);
return APR_SUCCESS;
}
AP_DECLARE(int) ap_mpm_pod_check(ap_pod_t * pod)
{
char c;
apr_os_file_t fd;
int rc;
apr_os_file_get(&fd, pod->pod_in);
rc = read(fd, &c, 1);
if (rc == 1) {
switch (c) {
case RESTART_CHAR:
return AP_RESTART;
case GRACEFUL_CHAR:
return AP_GRACEFUL;
}
}
return AP_NORESTART;
}
AP_DECLARE(apr_status_t) ap_mpm_pod_close(ap_pod_t * pod)
{
apr_status_t rv;
rv = apr_file_close(pod->pod_out);
if (rv != APR_SUCCESS) {
return rv;
}
rv = apr_file_close(pod->pod_in);
if (rv != APR_SUCCESS) {
return rv;
}
return rv;
}
static apr_status_t pod_signal_internal(ap_pod_t * pod, int graceful)
{
apr_status_t rv;
char char_of_death = graceful ? GRACEFUL_CHAR : RESTART_CHAR;
apr_size_t one = 1;
rv = apr_file_write(pod->pod_out, &char_of_death, &one);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_WARNING, rv, ap_server_conf,
"write pipe_of_death");
}
return rv;
}
AP_DECLARE(apr_status_t) ap_mpm_pod_signal(ap_pod_t * pod, int graceful)
{
return pod_signal_internal(pod, graceful);
}
AP_DECLARE(void) ap_mpm_pod_killpg(ap_pod_t * pod, int num, int graceful)
{
int i;
apr_status_t rv = APR_SUCCESS;
for (i = 0; i < num && rv == APR_SUCCESS; i++) {
rv = pod_signal_internal(pod, graceful);
}
}