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Introducing process use counter.

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This helps to decouple process removal from port memory pool cleanups.
This commit is contained in:
Max Romanov
2017-10-04 15:02:11 +03:00
parent f869bf1b02
commit e44401a0bb
6 changed files with 54 additions and 40 deletions
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39
src/nxt_process.c
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@@ -58,7 +58,7 @@ nxt_process_create(nxt_task_t *task, nxt_process_t *process)
if (!p->ready) {
nxt_debug(task, "remove not ready process %PI", p->pid);
nxt_runtime_process_remove(task, p);
nxt_process_close_ports(task, p);
} else {
nxt_port_mmaps_destroy(p->incoming, 0);
@@ -586,29 +586,30 @@ nxt_user_cred_set(nxt_task_t *task, nxt_user_cred_t *uc)
}
static void
nxt_process_port_mp_cleanup(nxt_task_t *task, void *obj, void *data)
{
nxt_process_t *process;
process = obj;
process->port_cleanups--;
if (process->port_cleanups == 0) {
nxt_runtime_process_remove(task, process);
}
}
void
nxt_process_port_add(nxt_task_t *task, nxt_process_t *process, nxt_port_t *port)
{
nxt_assert(port->process == NULL);
port->process = process;
nxt_queue_insert_tail(&process->ports, &port->link);
nxt_mp_cleanup(port->mem_pool, nxt_process_port_mp_cleanup, task, process,
NULL);
process->port_cleanups++;
nxt_process_use(task, process, 1);
}
void
nxt_process_close_ports(nxt_task_t *task, nxt_process_t *process)
{
nxt_port_t *port;
nxt_process_port_each(process, port) {
nxt_port_close(task, port);
nxt_runtime_port_remove(task, port);
} nxt_process_port_loop;
}
@@ -622,6 +623,7 @@ nxt_process_connected_port_add(nxt_process_t *process, nxt_port_t *port)
nxt_thread_mutex_unlock(&process->cp_mutex);
}
void
nxt_process_connected_port_remove(nxt_process_t *process, nxt_port_t *port)
{
@@ -632,6 +634,7 @@ nxt_process_connected_port_remove(nxt_process_t *process, nxt_port_t *port)
nxt_thread_mutex_unlock(&process->cp_mutex);
}
nxt_port_t *
nxt_process_connected_port_find(nxt_process_t *process, nxt_pid_t pid,
nxt_port_id_t port_id)