15 static const size_t size = 12000000; // size of data to transfer
22 struct sync_flag flag;
27 struct aio_info aio_infos[2];
30 static struct sync_flag b_received_flag;
32 static void aio_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, void *priv) {
38 struct aio_info *info = priv;
40 fprintf(stderr, "%d:%s aio_cb %s %p %zu\n", info->port, mesh->name, channel->node->name, data, len);
42 gettimeofday(&info->tv, NULL);
45 set_sync_flag(&info->flag, true);
48 static void aio_cb_close(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, void *priv) {
49 aio_cb(mesh, channel, data, len, priv);
50 struct aio_info *info = priv;
51 fprintf(stderr, "%d:%s aio_cb %s closing\n", info->port, mesh->name, channel->node->name);
52 meshlink_channel_close(mesh, channel);
55 static bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
59 fprintf(stderr, "%d:%s accept_cb %s\n", port, mesh->name, channel->node->name);
61 struct channel_info *infos = mesh->priv;
62 struct channel_info *info = &infos[port - 1];
67 assert(meshlink_channel_aio_receive(mesh, channel, info->data, size / 4, aio_cb, &info->aio_infos[0]));
68 assert(meshlink_channel_aio_receive(mesh, channel, info->data + size / 4, size - size / 4, aio_cb_close, &info->aio_infos[1]));
73 assert(meshlink_channel_aio_receive(mesh, channel, info->data, size / 4, aio_cb_close, &info->aio_infos[0]));
74 assert(meshlink_channel_aio_receive(mesh, channel, info->data + size / 4, size - size / 4, aio_cb, &info->aio_infos[1]));
85 init_sync_flag(&b_received_flag);
87 meshlink_set_log_cb(NULL, MESHLINK_WARNING, log_cb);
89 // Prepare data buffers
91 char *outdata = malloc(size);
94 for(size_t i = 0; i < size; i++) {
98 static const size_t nchannels = 4;
99 struct channel_info in_infos[nchannels];
100 struct channel_info out_infos[nchannels];
102 memset(in_infos, 0, sizeof(in_infos));
103 memset(out_infos, 0, sizeof(out_infos));
105 for(size_t i = 0; i < nchannels; i++) {
106 init_sync_flag(&in_infos[i].aio_infos[0].flag);
107 init_sync_flag(&in_infos[i].aio_infos[1].flag);
108 init_sync_flag(&out_infos[i].aio_infos[0].flag);
109 init_sync_flag(&out_infos[i].aio_infos[1].flag);
111 in_infos[i].data = malloc(size);
112 assert(in_infos[i].data);
113 out_infos[i].data = outdata;
115 out_infos[i].aio_infos[0].port = i + 1;
116 out_infos[i].aio_infos[1].port = i + 1;
117 in_infos[i].aio_infos[0].port = i + 1;
118 in_infos[i].aio_infos[1].port = i + 1;
121 // Open two new meshlink instance.
123 meshlink_handle_t *mesh_a, *mesh_b;
124 open_meshlink_pair(&mesh_a, &mesh_b, "channels_aio_cornercases");
126 // Set the callbacks.
128 mesh_b->priv = in_infos;
130 meshlink_set_channel_accept_cb(mesh_b, accept_cb);
132 // Start both instances
134 start_meshlink_pair(mesh_a, mesh_b);
137 // Open channels from a to b.
139 meshlink_node_t *b = meshlink_get_node(mesh_a, "b");
142 meshlink_channel_t *channels[nchannels + 1];
144 // Send a large buffer of data on each channel.
146 for(size_t i = 0; i < nchannels; i++) {
147 channels[i] = meshlink_channel_open(mesh_a, b, i + 1, NULL, NULL, 0);
151 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata, size / 3, aio_cb, &out_infos[i].aio_infos[0]));
152 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata + size / 3, size - size / 3, aio_cb_close, &out_infos[i].aio_infos[1]));
154 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata, size / 3, aio_cb_close, &out_infos[i].aio_infos[0]));
155 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata + size / 3, size - size / 3, aio_cb, &out_infos[i].aio_infos[1]));
159 // Wait for all AIO buffers to finish.
161 for(size_t i = 0; i < nchannels; i++) {
162 // The first chunk should always have succeeded
163 assert(wait_sync_flag(&in_infos[i].aio_infos[0].flag, 10));
164 assert(wait_sync_flag(&out_infos[i].aio_infos[0].flag, 10));
166 // The second chunk should only have completed if we didn't close the channel yet
168 assert(!check_sync_flag(&in_infos[i].aio_infos[1].flag));
170 assert(wait_sync_flag(&in_infos[i].aio_infos[1].flag, 10));
174 assert(wait_sync_flag(&out_infos[i].aio_infos[1].flag, 10));
176 assert(!check_sync_flag(&out_infos[i].aio_infos[1].flag));
181 // Check that everything is correct.
183 assert(!memcmp(in_infos[0].data, out_infos[0].data, size));
184 assert(!memcmp(in_infos[1].data, out_infos[1].data, size / 4));
185 assert(memcmp(in_infos[1].data, out_infos[1].data + size / 4, size - size / 4));
186 assert(!memcmp(in_infos[2].data, out_infos[2].data, size / 3));
187 assert(memcmp(in_infos[2].data, out_infos[2].data + size / 3, size - size / 3));
188 assert(!memcmp(in_infos[3].data, out_infos[3].data, size / 4));
189 assert(memcmp(in_infos[3].data, out_infos[3].data + size / 4, size / 3 - size / 4));
190 assert(memcmp(in_infos[3].data, out_infos[3].data + size / 3, size - size / 3));
194 close_meshlink_pair(mesh_a, mesh_b);
198 for(size_t i = 0; i < nchannels; i++) {
199 free(in_infos[i].data);