nxt_event_conn_... functions and structures have been renamed

to nxt_conn_...

src/nxt_conn_connect.c

@@ -0,0 +1,194 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_main.h>
+
+
+void
+nxt_conn_sys_socket(nxt_task_t *task, void *obj, void *data)
+{
+    nxt_conn_t          *c;
+    nxt_work_handler_t  handler;
+
+    c = obj;
+
+    if (nxt_conn_socket(task, c) == NXT_OK) {
+        c->socket.write_work_queue = c->write_work_queue;
+        handler = c->io->connect;
+
+    } else {
+        handler = c->write_state->error_handler;
+    }
+
+    nxt_work_queue_add(&task->thread->engine->connect_work_queue,
+                       handler, task, c, data);
+}
+
+
+void
+nxt_conn_io_connect(nxt_task_t *task, void *obj, void *data)
+{
+    nxt_conn_t              *c;
+    nxt_work_handler_t      handler;
+    nxt_event_engine_t      *engine;
+    const nxt_conn_state_t  *state;
+
+    c = obj;
+
+    state = c->write_state;
+
+    switch (nxt_socket_connect(task, c->socket.fd, c->remote)) {
+
+    case NXT_OK:
+        c->socket.write_ready = 1;
+        handler = state->ready_handler;
+        break;
+
+    case NXT_AGAIN:
+        c->socket.write_handler = nxt_conn_connect_test;
+        c->socket.error_handler = state->error_handler;
+
+        engine = task->thread->engine;
+
+        nxt_conn_timer(engine, c, state, &c->write_timer);
+
+        nxt_fd_event_enable_write(engine, &c->socket);
+        return;
+
+    case NXT_DECLINED:
+        handler = state->close_handler;
+        break;
+
+    default: /* NXT_ERROR */
+        handler = state->error_handler;
+        break;
+    }
+
+    nxt_work_queue_add(c->write_work_queue, handler, task, c, data);
+}
+
+
+nxt_int_t
+nxt_conn_socket(nxt_task_t *task, nxt_conn_t *c)
+{
+    nxt_uint_t    family;
+    nxt_socket_t  s;
+
+    nxt_debug(task, "event conn socket");
+
+    family = c->remote->u.sockaddr.sa_family;
+
+    s = nxt_socket_create(task, family, c->remote->type, 0, NXT_NONBLOCK);
+
+    if (nxt_slow_path(s == -1)) {
+        return NXT_ERROR;
+    }
+
+    c->sendfile = 1;
+
+#if (NXT_HAVE_UNIX_DOMAIN && NXT_SOLARIS)
+
+    if (family == AF_UNIX) {
+        /* Solaris AF_UNIX does not support sendfilev(). */
+        c->sendfile = 0;
+    }
+
+#endif
+
+    c->socket.fd = s;
+
+    c->socket.task = task;
+    c->read_timer.task = task;
+    c->write_timer.task = task;
+
+    if (c->local != NULL) {
+        if (nxt_slow_path(nxt_socket_bind(task, s, c->local, 0) != NXT_OK)) {
+            nxt_socket_close(task, s);
+            return NXT_ERROR;
+        }
+    }
+
+    return NXT_OK;
+}
+
+
+void
+nxt_conn_connect_test(nxt_task_t *task, void *obj, void *data)
+{
+    int         ret, err;
+    socklen_t   len;
+    nxt_conn_t  *c;
+
+    c = obj;
+
+    nxt_debug(task, "event connect test fd:%d", c->socket.fd);
+
+    nxt_fd_event_block_write(task->thread->engine, &c->socket);
+
+    if (c->write_state->timer_autoreset) {
+        nxt_timer_disable(task->thread->engine, &c->write_timer);
+    }
+
+    err = 0;
+    len = sizeof(int);
+
+    /*
+     * Linux and BSDs return 0 and store a pending error in the err argument;
+     * Solaris returns -1 and sets the errno.
+     */
+
+    ret = getsockopt(c->socket.fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len);
+
+    if (nxt_slow_path(ret == -1)) {
+        err = nxt_errno;
+    }
+
+    if (err == 0) {
+        nxt_work_queue_add(c->write_work_queue, c->write_state->ready_handler,
+                           task, c, data);
+        return;
+    }
+
+    c->socket.error = err;
+
+    nxt_log(task, nxt_socket_error_level(err), "connect(%d, %*s) failed %E",
+            c->socket.fd, c->remote->length, nxt_sockaddr_start(c->remote));
+
+    nxt_conn_connect_error(task, c, data);
+}
+
+
+void
+nxt_conn_connect_error(nxt_task_t *task, void *obj, void *data)
+{
+    nxt_conn_t              *c;
+    nxt_work_handler_t      handler;
+    const nxt_conn_state_t  *state;
+
+    c = obj;
+
+    state = c->write_state;
+
+    switch (c->socket.error) {
+
+    case NXT_ECONNREFUSED:
+#if (NXT_LINUX)
+    case NXT_EAGAIN:
+        /*
+         * Linux returns EAGAIN instead of ECONNREFUSED
+         * for UNIX sockets if a listen queue is full.
+         */
+#endif
+        handler = state->close_handler;
+        break;
+
+    default:
+        handler = state->error_handler;
+        break;
+    }
+
+    nxt_work_queue_add(c->write_work_queue, handler, task, c, data);
+}