commit 876c892

The server creates a pidfile inside the base directory.

 1@@ -774,6 +774,7 @@ void httpd(void)
 2     xs *sem_name = NULL;
 3     xs *shm_name = NULL;
 4     sem_t anon_job_sem;
 5+    xs *pidfile = xs_fmt("%s/server.pid", srv_basedir);
 6 
 7     address = xs_dict_get(srv_config, "address");
 8 
 9@@ -809,6 +810,17 @@ void httpd(void)
10     srv_log(xs_fmt("httpd%s start %s %s", p_state->use_fcgi ? " (FastCGI)" : "",
11                     full_address, USER_AGENT));
12 
13+    {
14+        FILE *f;
15+
16+        if ((f = fopen(pidfile, "w")) != NULL) {
17+            fprintf(f, "%d\n", getpid());
18+            fclose(f);
19+        }
20+        else
21+            srv_log(xs_fmt("Cannot create %s: %s", pidfile, strerror(errno)));
22+    }
23+
24     /* show the number of usable file descriptors */
25     struct rlimit r;
26     getrlimit(RLIMIT_NOFILE, &r);
27@@ -894,4 +906,6 @@ void httpd(void)
28     srv_log(xs_fmt("httpd%s stop %s (run time: %s)",
29                 p_state->use_fcgi ? " (FastCGI)" : "",
30                 full_address, uptime));
31+
32+    unlink(pidfile);
33 }