Removing mem_pool from port_hash interface.

Memory pool is not used by port_hash and it was a mistake to pass it into
'add' and 'remove' functions.  port_hash enrties are allocated from heap.

src/nxt_port_hash.c

@@ -52,9 +52,19 @@ nxt_port_hash_first(nxt_lvlhsh_t *port_hash, nxt_lvlhsh_each_t *lhe)
 }
 
 
+nxt_inline void
+nxt_port_hash_lhq(nxt_lvlhsh_query_t *lhq, nxt_pid_port_id_t *pid_port)
+{
+    lhq->key_hash = nxt_murmur_hash2(pid_port, sizeof(nxt_pid_port_id_t));
+    lhq->key.length = sizeof(nxt_pid_port_id_t);
+    lhq->key.start = (u_char *) pid_port;
+    lhq->proto = &lvlhsh_ports_proto;
+    lhq->pool = NULL;
+}
+
+
 void
-nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
+nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_port_t *port)
-    nxt_port_t *port)
 {
     nxt_pid_port_id_t   pid_port;
     nxt_lvlhsh_query_t  lhq;
@@ -62,13 +72,9 @@ nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
     pid_port.pid = port->pid;
     pid_port.port_id = port->id;
 
-    lhq.key_hash = nxt_murmur_hash2(&pid_port, sizeof(pid_port));
+    nxt_port_hash_lhq(&lhq, &pid_port);
-    lhq.key.length = sizeof(pid_port);
-    lhq.key.start = (u_char *) &pid_port;
-    lhq.proto = &lvlhsh_ports_proto;
     lhq.replace = 0;
     lhq.value = port;
-    lhq.pool = mem_pool;
 
     switch (nxt_lvlhsh_insert(port_hash, &lhq)) {
 
@@ -84,8 +90,7 @@ nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
 
 
 void
-nxt_port_hash_remove(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
+nxt_port_hash_remove(nxt_lvlhsh_t *port_hash, nxt_port_t *port)
-    nxt_port_t *port)
 {
     nxt_pid_port_id_t   pid_port;
     nxt_lvlhsh_query_t  lhq;
@@ -93,13 +98,7 @@ nxt_port_hash_remove(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
     pid_port.pid = port->pid;
     pid_port.port_id = port->id;
 
-    lhq.key_hash = nxt_murmur_hash2(&pid_port, sizeof(pid_port));
+    nxt_port_hash_lhq(&lhq, &pid_port);
-    lhq.key.length = sizeof(pid_port);
-    lhq.key.start = (u_char *) &pid_port;
-    lhq.proto = &lvlhsh_ports_proto;
-    lhq.replace = 0;
-    lhq.value = port;
-    lhq.pool = mem_pool;
 
     switch (nxt_lvlhsh_delete(port_hash, &lhq)) {
 
@@ -122,12 +121,7 @@ nxt_port_hash_find(nxt_lvlhsh_t *port_hash, nxt_pid_t pid,
     pid_port.pid = pid;
     pid_port.port_id = port_id;
 
-    lhq.key_hash = nxt_murmur_hash2(&pid_port, sizeof(pid_port));
+    nxt_port_hash_lhq(&lhq, &pid_port);
-    lhq.key.length = sizeof(pid_port);
-    lhq.key.start = (u_char *) &pid_port;
-    lhq.proto = &lvlhsh_ports_proto;
-
-    /* TODO lock ports */
 
     if (nxt_lvlhsh_find(port_hash, &lhq) == NXT_OK) {
         nxt_thread_log_debug("process port (%PI, %d) found", pid, port_id);

src/nxt_port_hash.h

@@ -11,11 +11,9 @@
 #include <nxt_main.h>
 
 
-void nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
+void nxt_port_hash_add(nxt_lvlhsh_t *port_hash, nxt_port_t *port);
-    nxt_port_t *port);
 
-void nxt_port_hash_remove(nxt_lvlhsh_t *port_hash, nxt_mp_t *mem_pool,
+void nxt_port_hash_remove(nxt_lvlhsh_t *port_hash, nxt_port_t *port);
-    nxt_port_t *port);
 
 nxt_port_t *nxt_port_hash_find(nxt_lvlhsh_t *port_hash, nxt_pid_t pid,
     nxt_port_id_t port_id);

src/nxt_process.c

@@ -619,13 +619,7 @@ nxt_process_connected_port_add(nxt_process_t *process, nxt_port_t *port)
 {
     nxt_thread_mutex_lock(&process->cp_mutex);
 
-    if (process->cp_mem_pool == NULL) {
+    nxt_port_hash_add(&process->connected_ports, port);
-        process->cp_mem_pool = nxt_mp_create(1024, 128, 256, 32);
-    }
-
-    nxt_mp_thread_adopt(process->cp_mem_pool);
-
-    nxt_port_hash_add(&process->connected_ports, process->cp_mem_pool, port);
 
     nxt_thread_mutex_unlock(&process->cp_mutex);
 }
@@ -635,12 +629,7 @@ nxt_process_connected_port_remove(nxt_process_t *process, nxt_port_t *port)
 {
     nxt_thread_mutex_lock(&process->cp_mutex);
 
-    if (process->cp_mem_pool != NULL) {
+    nxt_port_hash_remove(&process->connected_ports, port);
-        nxt_mp_thread_adopt(process->cp_mem_pool);
-
-        nxt_port_hash_remove(&process->connected_ports, process->cp_mem_pool,
-                             port);
-    }
 
     nxt_thread_mutex_unlock(&process->cp_mutex);
 }

src/nxt_process.h

@@ -58,7 +58,6 @@ typedef struct {
     nxt_array_t         *outgoing;  /* of nxt_port_mmap_t */
 
     nxt_thread_mutex_t  cp_mutex;
-    nxt_mp_t            *cp_mem_pool;
     nxt_lvlhsh_t        connected_ports; /* of nxt_port_t */
 } nxt_process_t;
 

src/nxt_runtime.c

@@ -1586,16 +1586,21 @@ nxt_runtime_process_new(nxt_runtime_t *rt)
 static void
 nxt_runtime_process_destroy(nxt_runtime_t *rt, nxt_process_t *process)
 {
+    nxt_port_t         *port;
+    nxt_lvlhsh_each_t  lhe;
+
     nxt_assert(process->port_cleanups == 0);
     nxt_assert(process->registered == 0);
 
     nxt_port_mmaps_destroy(process->incoming, 1);
     nxt_port_mmaps_destroy(process->outgoing, 1);
 
-    if (process->cp_mem_pool != NULL) {
+    port = nxt_port_hash_first(&process->connected_ports, &lhe);
-        nxt_mp_thread_adopt(process->cp_mem_pool);
 
-        nxt_mp_destroy(process->cp_mem_pool);
+    while(port != NULL) {
+        nxt_port_hash_remove(&process->connected_ports, port);
+
+        port = nxt_port_hash_first(&process->connected_ports, &lhe);
     }
 
     nxt_thread_mutex_destroy(&process->incoming_mutex);
@@ -1847,7 +1852,7 @@ nxt_runtime_port_first(nxt_runtime_t *rt, nxt_lvlhsh_each_t *lhe)
 void
 nxt_runtime_port_add(nxt_runtime_t *rt, nxt_port_t *port)
 {
-    nxt_port_hash_add(&rt->ports, rt->mem_pool, port);
+    nxt_port_hash_add(&rt->ports, port);
 
     rt->port_by_type[port->type] = port;
 }
@@ -1856,7 +1861,7 @@ nxt_runtime_port_add(nxt_runtime_t *rt, nxt_port_t *port)
 void
 nxt_runtime_port_remove(nxt_runtime_t *rt, nxt_port_t *port)
 {
-    nxt_port_hash_remove(&rt->ports, rt->mem_pool, port);
+    nxt_port_hash_remove(&rt->ports, port);
 
     if (rt->port_by_type[port->type] == port) {
         rt->port_by_type[port->type] = NULL;