2 * QEMU I/O channel test helpers
4 * Copyright (c) 2015 Red Hat, Inc.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
21 #include "qemu/osdep.h"
22 #include "io-channel-helpers.h"
25 struct QIOChannelTest {
33 struct iovec *outputv;
39 /* This thread sends all data using iovecs */
40 static gpointer test_io_thread_writer(gpointer opaque)
42 QIOChannelTest *data = opaque;
44 qio_channel_writev_all(data->src,
53 /* This thread receives all data using iovecs */
54 static gpointer test_io_thread_reader(gpointer opaque)
56 QIOChannelTest *data = opaque;
58 qio_channel_readv_all(data->dst,
67 QIOChannelTest *qio_channel_test_new(void)
69 QIOChannelTest *data = g_new0(QIOChannelTest, 1);
74 /* We'll send 1 MB of data */
75 #define CHUNK_COUNT 250
76 #define CHUNK_LEN 4194
78 data->len = CHUNK_COUNT * CHUNK_LEN;
79 data->input = g_new0(char, data->len);
80 data->output = g_new0(gchar, data->len);
82 /* Fill input with a pattern */
83 for (i = 0; i < data->len; i += CHUNK_LEN) {
84 memset(data->input + i, (i / CHUNK_LEN), CHUNK_LEN);
87 /* We'll split the data across a bunch of IO vecs */
88 data->niov = CHUNK_COUNT;
89 data->inputv = g_new0(struct iovec, data->niov);
90 data->outputv = g_new0(struct iovec, data->niov);
92 for (i = 0, offset = 0; i < data->niov; i++, offset += CHUNK_LEN) {
93 data->inputv[i].iov_base = data->input + offset;
94 data->outputv[i].iov_base = data->output + offset;
95 data->inputv[i].iov_len = CHUNK_LEN;
96 data->outputv[i].iov_len = CHUNK_LEN;
102 void qio_channel_test_run_threads(QIOChannelTest *test,
107 GThread *reader, *writer;
112 qio_channel_set_blocking(test->dst, blocking, NULL);
113 qio_channel_set_blocking(test->src, blocking, NULL);
115 reader = g_thread_new("reader",
116 test_io_thread_reader,
118 writer = g_thread_new("writer",
119 test_io_thread_writer,
122 g_thread_join(reader);
123 g_thread_join(writer);
125 test->dst = test->src = NULL;
129 void qio_channel_test_run_writer(QIOChannelTest *test,
133 test_io_thread_writer(test);
138 void qio_channel_test_run_reader(QIOChannelTest *test,
142 test_io_thread_reader(test);
147 void qio_channel_test_validate(QIOChannelTest *test)
149 g_assert(test->readerr == NULL);
150 g_assert(test->writeerr == NULL);
151 g_assert_cmpint(memcmp(test->input,
155 g_free(test->inputv);
156 g_free(test->outputv);
158 g_free(test->output);