Removing Unix control socket on start failure.

The bug had appeared in 5cc5002a788e when process type has been
converted to bitmask. This commit reverts the type back to a number.

This commit is related to #131 issue on GitHub.

src/nxt_main_process.c

@@ -80,7 +80,7 @@ nxt_int_t
 nxt_main_process_start(nxt_thread_t *thr, nxt_task_t *task,
     nxt_runtime_t *rt)
 {
-    rt->types |= (1U << NXT_PROCESS_MAIN);
+    rt->type = NXT_PROCESS_MAIN;
 
     if (nxt_main_process_port_create(task, rt) != NXT_OK) {
         return NXT_ERROR;

src/nxt_port.c

@@ -306,8 +306,6 @@ nxt_port_process_ready_handler(nxt_task_t *task, nxt_port_recv_msg_t *msg)
 
     rt = task->thread->runtime;
 
-    nxt_assert(nxt_runtime_is_main(rt));
-
     process = nxt_runtime_process_find(rt, msg->port_msg.pid);
     if (nxt_slow_path(process == NULL)) {
         return;

src/nxt_process.c

@@ -62,8 +62,6 @@ nxt_process_create(nxt_task_t *task, nxt_process_t *process)
 
         process->pid = nxt_pid;
 
-        rt->types = 0;
-
         ptype = process->init->type;
 
         nxt_port_reset_next_id();
@@ -149,7 +147,7 @@ nxt_process_start(nxt_task_t *task, nxt_process_t *process)
 
     rt = thread->runtime;
 
-    rt->types |= (1U << init->type);
+    rt->type = init->type;
 
     engine = thread->engine;
 

src/nxt_runtime.c

@@ -433,7 +433,7 @@ nxt_runtime_quit(nxt_task_t *task)
             done = 0;
         }
 
-        if (nxt_runtime_is_main(rt)) {
+        if (rt->type == NXT_PROCESS_MAIN) {
             nxt_main_stop_worker_processes(task, rt);
             done = 0;
         }
@@ -490,7 +490,7 @@ nxt_runtime_exit(nxt_task_t *task, void *obj, void *data)
         return;
     }
 
-    if (nxt_runtime_is_main(rt)) {
+    if (rt->type == NXT_PROCESS_MAIN) {
         if (rt->pid_file != NULL) {
             nxt_file_delete(rt->pid_file);
         }

src/nxt_runtime.h

@@ -43,7 +43,7 @@ struct nxt_runtime_s {
 
     uint32_t               last_engine_id;
 
-    uint32_t               types;         /* bitset of nxt_process_type_t */
+    nxt_process_type_t     type;
 
     nxt_timer_t            timer;
 
@@ -83,20 +83,6 @@ nxt_int_t nxt_runtime_thread_pool_create(nxt_thread_t *thr, nxt_runtime_t *rt,
     nxt_uint_t max_threads, nxt_nsec_t timeout);
 
 
-nxt_inline nxt_bool_t
-nxt_runtime_is_type(nxt_runtime_t *rt, nxt_process_type_t type)
-{
-    return (rt->types & (1U << type)) != 0;
-}
-
-
-nxt_inline nxt_bool_t
-nxt_runtime_is_main(nxt_runtime_t *rt)
-{
-    return nxt_runtime_is_type(rt, NXT_PROCESS_MAIN);
-}
-
-
 nxt_process_t *nxt_runtime_process_new(nxt_runtime_t *rt);
 
 nxt_process_t *nxt_runtime_process_get(nxt_runtime_t *rt, nxt_pid_t pid);