530 lines
18 KiB
C
530 lines
18 KiB
C
/****************************************************************************
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* examples/usrsocktest/usrsocktest_noblock_recv.c
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* Receive from the socket in non-blocking mode
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*
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* Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
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* Authors: Roman Saveljev <roman.saveljev@haltian.com>
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* Jussi Kivilinna <jussi.kivilinna@haltian.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/socket.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "defines.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static bool started;
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static int sd;
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: receive
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*
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* Description:
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* Non-blocking & instant connect+recv
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*
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* Input Parameters:
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* dconf - socket daemon configuration
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*
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* Returned Value:
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* None
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*
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* Assumptions/Limitations:
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* None
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*
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****************************************************************************/
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static void receive(struct usrsocktest_daemon_conf_s *dconf)
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{
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int flags;
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int count;
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ssize_t ret;
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size_t datalen;
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void *data;
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struct sockaddr_in addr;
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char databuf[4];
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struct sockaddr_in remoteaddr;
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socklen_t addrlen;
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/* Start test daemon. */
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dconf->endpoint_addr = "127.0.0.1";
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dconf->endpoint_port = 255;
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dconf->endpoint_recv_avail_from_start = true;
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dconf->endpoint_recv_avail = 7;
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TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
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started = true;
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
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/* Open socket */
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sd = socket(AF_INET, SOCK_STREAM, 0);
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TEST_ASSERT_TRUE(sd >= 0);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
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/* Make socket non-blocking */
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flags = fcntl(sd, F_GETFL, 0);
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TEST_ASSERT_TRUE(flags >= 0);
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TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
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TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
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ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
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TEST_ASSERT_EQUAL(0, ret);
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flags = fcntl(sd, F_GETFL, 0);
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TEST_ASSERT_TRUE(flags >= 0);
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TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
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TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
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/* Do connect, should succeed instantly. */
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inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
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addr.sin_family = AF_INET;
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addr.sin_port = htons(255);
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ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
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if (!dconf->delay_all_responses)
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{
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TEST_ASSERT_EQUAL(0, ret);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0,
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usrsocktest_daemon_get_num_waiting_connect_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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}
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else
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{
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EINPROGRESS, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0,
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usrsocktest_daemon_get_num_waiting_connect_sockets());
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for (count = 0; usrsocktest_daemon_get_num_connected_sockets() != 1;
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count++)
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{
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TEST_ASSERT_TRUE(count <= 3);
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usleep(25 * 1000);
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}
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ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EISCONN, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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}
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/* Receive data from remote, daemon returns 4 bytes. */
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data = databuf;
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datalen = sizeof(databuf);
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ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
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TEST_ASSERT_EQUAL(datalen, ret);
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TEST_ASSERT_EQUAL(4, datalen);
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TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(4, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Receive data from remote with address, daemon returns 3 bytes. */
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addrlen = sizeof(remoteaddr);
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ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
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&addrlen);
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TEST_ASSERT_EQUAL(3, ret);
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TEST_ASSERT_EQUAL_UINT8_ARRAY("abc", data, 3);
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TEST_ASSERT_EQUAL(addrlen, sizeof(remoteaddr));
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TEST_ASSERT_EQUAL_UINT8_ARRAY(&remoteaddr, &addr, addrlen);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(datalen + ret, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Receive data from remote, daemon has 0 bytes buffered => -EAGAIN */
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data = databuf;
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datalen = sizeof(databuf);
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ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EAGAIN, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(7, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Receive data from remote, daemon has 0 bytes buffered => -EAGAIN */
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data = databuf;
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datalen = sizeof(databuf);
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ret = read(sd, data, datalen);
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EAGAIN, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(7, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Reset recv buffer for open sockets */
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TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 0));
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for (count = 0;
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usrsocktest_daemon_get_num_recv_empty_sockets() > 0; count++)
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{
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TEST_ASSERT_TRUE(count <= 5);
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usleep(5 * 1000);
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}
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Receive data from remote, daemon returns 4 bytes. */
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data = databuf;
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datalen = sizeof(databuf);
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ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
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TEST_ASSERT_EQUAL(datalen, ret);
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TEST_ASSERT_EQUAL(4, datalen);
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TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(7 + 4, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Close socket */
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TEST_ASSERT_TRUE(close(sd) >= 0);
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sd = -1;
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(7 + 4, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Stopping daemon should succeed. */
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TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
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started = false;
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TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
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TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
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}
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/****************************************************************************
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* Name: delayed_connect
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*
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* Description:
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* Non-blocking & delayed connect
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*
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* Input Parameters:
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* dconf - socket daemon configuration
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*
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* Returned Value:
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* None
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*
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* Assumptions/Limitations:
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* None
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*
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****************************************************************************/
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static void delayed_connect(struct usrsocktest_daemon_conf_s *dconf)
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{
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int flags;
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int count;
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ssize_t ret;
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size_t datalen;
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void *data;
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struct sockaddr_in addr;
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char databuf[4];
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struct sockaddr_in remoteaddr;
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socklen_t addrlen;
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/* Start test daemon. */
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dconf->endpoint_block_connect = true;
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dconf->endpoint_recv_avail_from_start = false;
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dconf->endpoint_recv_avail = 4;
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dconf->endpoint_addr = "127.0.0.1";
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dconf->endpoint_port = 255;
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TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_start(dconf));
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started = true;
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
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/* Open socket */
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sd = socket(AF_INET, SOCK_STREAM, 0);
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TEST_ASSERT_TRUE(sd >= 0);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
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/* Make socket non-blocking */
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flags = fcntl(sd, F_GETFL, 0);
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TEST_ASSERT_TRUE(flags >= 0);
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TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
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TEST_ASSERT_EQUAL(0, flags & O_NONBLOCK);
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ret = fcntl(sd, F_SETFL, flags | O_NONBLOCK);
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TEST_ASSERT_EQUAL(0, ret);
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flags = fcntl(sd, F_GETFL, 0);
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TEST_ASSERT_TRUE(flags >= 0);
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TEST_ASSERT_EQUAL(O_RDWR, flags & O_RDWR);
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TEST_ASSERT_EQUAL(O_NONBLOCK, flags & O_NONBLOCK);
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/* Launch connect attempt, daemon delays actual connection until
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* triggered.
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*/
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inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr.s_addr);
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addr.sin_family = AF_INET;
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addr.sin_port = htons(255);
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ret = connect(sd, (FAR const struct sockaddr *)&addr, sizeof(addr));
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EINPROGRESS, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
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/* Try receive data, not connected yet. */
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data = databuf;
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datalen = sizeof(databuf);
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ret = read(sd, data, datalen);
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EAGAIN, errno);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_waiting_connect_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
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/* Release delayed connect. */
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TEST_ASSERT_TRUE(usrsocktest_daemon_establish_waiting_connections());
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for (count = 0; usrsocktest_daemon_get_num_waiting_connect_sockets() > 0;
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count++)
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{
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TEST_ASSERT_TRUE(count <= 5);
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usleep(10 * 1000);
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}
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Try receive data, not received data yet. */
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data = databuf;
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datalen = sizeof(databuf);
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addrlen = sizeof(remoteaddr);
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ret = recvfrom(sd, data, datalen, 0, (FAR struct sockaddr *)&remoteaddr,
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&addrlen);
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TEST_ASSERT_EQUAL(-1, ret);
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TEST_ASSERT_EQUAL(EAGAIN, errno);
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TEST_ASSERT_EQUAL(0, addrlen);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_send_bytes());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Reset recv buffer for open sockets */
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TEST_ASSERT_TRUE(usrsocktest_send_delayed_command('r', 0));
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for (count = 0;
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usrsocktest_daemon_get_num_recv_empty_sockets() > 0; count++)
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{
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TEST_ASSERT_TRUE(count <= 5);
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usleep(5 * 1000);
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}
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/* Receive data from remote, daemon returns 4 bytes. */
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data = databuf;
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datalen = sizeof(databuf);
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ret = recvfrom(sd, data, datalen, 0, NULL, NULL);
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TEST_ASSERT_EQUAL(datalen, ret);
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TEST_ASSERT_EQUAL(4, datalen);
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TEST_ASSERT_EQUAL_UINT8_ARRAY("abcd", data, 4);
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(4, usrsocktest_daemon_get_recv_bytes());
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TEST_ASSERT_EQUAL(1, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Close socket. */
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TEST_ASSERT_TRUE(close(sd) >= 0);
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sd = -1;
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_waiting_connect_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_daemon_get_num_recv_empty_sockets());
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/* Stopping daemon should succeed. */
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TEST_ASSERT_EQUAL(OK, usrsocktest_daemon_stop());
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started = false;
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TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_active_sockets());
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TEST_ASSERT_EQUAL(-ENODEV, usrsocktest_daemon_get_num_connected_sockets());
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TEST_ASSERT_EQUAL(-ENODEV,
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usrsocktest_daemon_get_num_waiting_connect_sockets());
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TEST_ASSERT_EQUAL(-ENODEV,
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usrsocktest_daemon_get_num_recv_empty_sockets());
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TEST_ASSERT_EQUAL(0, usrsocktest_endp_malloc_cnt);
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TEST_ASSERT_EQUAL(0, usrsocktest_dcmd_malloc_cnt);
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}
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/****************************************************************************
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* Name: no_block_recv test group setup
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*
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* Description:
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* Setup function executed before each testcase in this test group
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* None
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*
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* Assumptions/Limitations:
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* None
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*
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|
****************************************************************************/
|
|
|
|
TEST_SETUP(no_block_recv)
|
|
{
|
|
sd = -1;
|
|
started = false;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: no_block_recv test group teardown
|
|
*
|
|
* Description:
|
|
* Setup function executed after each testcase in this test group
|
|
*
|
|
* Input Parameters:
|
|
* None
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
* Assumptions/Limitations:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
TEST_TEAR_DOWN(no_block_recv)
|
|
{
|
|
int ret;
|
|
if (sd >= 0)
|
|
{
|
|
ret = close(sd);
|
|
assert(ret >= 0);
|
|
}
|
|
|
|
if (started)
|
|
{
|
|
ret = usrsocktest_daemon_stop();
|
|
assert(ret == OK);
|
|
}
|
|
}
|
|
|
|
TEST(no_block_recv, receive)
|
|
{
|
|
usrsocktest_daemon_config = usrsocktest_daemon_defconf;
|
|
receive(&usrsocktest_daemon_config);
|
|
}
|
|
|
|
TEST(no_block_recv, receive_delay)
|
|
{
|
|
usrsocktest_daemon_config = usrsocktest_daemon_defconf;
|
|
usrsocktest_daemon_config.delay_all_responses = true;
|
|
receive(&usrsocktest_daemon_config);
|
|
}
|
|
|
|
TEST(no_block_recv, delayed_connect)
|
|
{
|
|
usrsocktest_daemon_config = usrsocktest_daemon_defconf;
|
|
delayed_connect(&usrsocktest_daemon_config);
|
|
}
|
|
|
|
TEST(no_block_recv, delayed_connect_delay)
|
|
{
|
|
usrsocktest_daemon_config = usrsocktest_daemon_defconf;
|
|
usrsocktest_daemon_config.delay_all_responses = true;
|
|
delayed_connect(&usrsocktest_daemon_config);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
TEST_GROUP(no_block_recv)
|
|
{
|
|
RUN_TEST_CASE(no_block_recv, receive);
|
|
RUN_TEST_CASE(no_block_recv, receive_delay);
|
|
RUN_TEST_CASE(no_block_recv, delayed_connect);
|
|
RUN_TEST_CASE(no_block_recv, delayed_connect_delay);
|
|
}
|