15 static const size_t size = 10000000; // size of data to transfer
22 struct sync_flag flag;
27 struct aio_info aio_infos[2];
30 static size_t b_received_len;
31 static struct timeval b_received_tv;
32 static struct sync_flag b_received_flag;
34 static void aio_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, void *priv) {
40 struct aio_info *info = priv;
42 fprintf(stderr, "%d:%s aio_cb %s %p %zu\n", info->port, mesh->name, channel->node->name, data, len);
44 gettimeofday(&info->tv, NULL);
47 set_sync_flag(&info->flag, true);
50 static void aio_cb_close(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *data, size_t len, void *priv) {
51 aio_cb(mesh, channel, data, len, priv);
52 struct aio_info *info = priv;
53 fprintf(stderr, "%d:%s aio_cb %s closing\n", info->port, mesh->name, channel->node->name);
54 meshlink_channel_close(mesh, channel);
57 static bool accept_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *data, size_t len) {
61 fprintf(stderr, "%d:%s accept_cb %s\n", port, mesh->name, channel->node->name);
63 struct channel_info *infos = mesh->priv;
64 struct channel_info *info = &infos[port - 1];
69 meshlink_channel_aio_receive(mesh, channel, info->data, size / 4, aio_cb, &info->aio_infos[0]);
70 meshlink_channel_aio_receive(mesh, channel, info->data + size / 4, size - size / 4, aio_cb_close, &info->aio_infos[1]);
75 meshlink_channel_aio_receive(mesh, channel, info->data, size / 4, aio_cb_close, &info->aio_infos[0]);
76 meshlink_channel_aio_receive(mesh, channel, info->data + size / 4, size - size / 4, aio_cb, &info->aio_infos[1]);
77 set_sync_flag(&info->aio_infos[1].flag, true);
87 int main(int argc, char *argv[]) {
91 meshlink_set_log_cb(NULL, MESHLINK_WARNING, log_cb);
93 // Prepare data buffers
95 char *outdata = malloc(size);
98 for(size_t i = 0; i < size; i++) {
102 static const size_t nchannels = 4;
103 struct channel_info in_infos[nchannels];
104 struct channel_info out_infos[nchannels];
106 memset(in_infos, 0, sizeof(in_infos));
107 memset(out_infos, 0, sizeof(out_infos));
109 for(size_t i = 0; i < nchannels; i++) {
110 in_infos[i].data = malloc(size);
111 assert(in_infos[i].data);
112 out_infos[i].data = outdata;
114 out_infos[i].aio_infos[0].port = i + 1;
115 out_infos[i].aio_infos[1].port = i + 1;
116 in_infos[i].aio_infos[0].port = i + 1;
117 in_infos[i].aio_infos[1].port = i + 1;
120 // Open two new meshlink instance.
122 meshlink_handle_t *mesh_a, *mesh_b;
123 open_meshlink_pair(&mesh_a, &mesh_b, "channels_aio");
125 // Set the callbacks.
127 mesh_b->priv = in_infos;
129 meshlink_set_channel_accept_cb(mesh_b, accept_cb);
131 // Start both instances
133 start_meshlink_pair(mesh_a, mesh_b);
136 // Open channels from a to b.
138 meshlink_node_t *b = meshlink_get_node(mesh_a, "b");
141 meshlink_channel_t *channels[nchannels + 1];
143 // Send a large buffer of data on each channel.
145 for(size_t i = 0; i < nchannels; i++) {
146 channels[i] = meshlink_channel_open(mesh_a, b, i + 1, NULL, NULL, 0);
150 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata, size / 3, aio_cb, &out_infos[i].aio_infos[0]));
151 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata + size / 3, size - size / 3, aio_cb_close, &out_infos[i].aio_infos[1]));
152 assert(wait_sync_flag(&out_infos[i].aio_infos[0].flag, 10));
153 assert(wait_sync_flag(&out_infos[i].aio_infos[1].flag, 10));
155 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata, size / 3, aio_cb_close, &out_infos[i].aio_infos[0]));
156 assert(meshlink_channel_aio_send(mesh_a, channels[i], outdata + size / 3, size - size / 3, aio_cb, &out_infos[i].aio_infos[1]));
157 assert(wait_sync_flag(&out_infos[i].aio_infos[0].flag, 10));
158 set_sync_flag(&out_infos[i].aio_infos[1].flag, true);
162 // Wait for all AIO buffers to finish.
164 for(size_t i = 0; i < nchannels; i++) {
165 assert(wait_sync_flag(&in_infos[i].aio_infos[0].flag, 10));
166 assert(wait_sync_flag(&in_infos[i].aio_infos[1].flag, 10));
167 assert(wait_sync_flag(&out_infos[i].aio_infos[0].flag, 10));
168 assert(wait_sync_flag(&out_infos[i].aio_infos[1].flag, 10));
171 // Check that everything is correct.
173 assert(!memcmp(in_infos[0].data, out_infos[0].data, size));
174 assert(!memcmp(in_infos[1].data, out_infos[1].data, size / 4));
175 assert(memcmp(in_infos[1].data, out_infos[1].data + size / 4, size - size / 4));
176 assert(!memcmp(in_infos[2].data, out_infos[2].data, size / 3));
177 assert(memcmp(in_infos[2].data, out_infos[2].data + size / 3, size - size / 3));
178 assert(!memcmp(in_infos[3].data, out_infos[3].data, size / 4));
179 assert(memcmp(in_infos[3].data, out_infos[3].data + size / 4, size / 3 - size / 4));
180 assert(memcmp(in_infos[3].data, out_infos[3].data + size / 3, size - size / 3));
184 close_meshlink_pair(mesh_a, mesh_b);
188 for(size_t i = 0; i < nchannels; i++) {
189 free(in_infos[i].data);