11 static void connection_waiting_cb(struct ev_loop *loop, ev_io *w, int revents) {
12 bufio_connection *con = (bufio_connection *)w->data;
13 if (revents & EV_READ) {
14 assert(con->inbuf_used != con->inbuf_size);
15 int res = read(w->fd, con->inbuf+con->inbuf_used, con->inbuf_size-con->inbuf_used);
17 if (errno != EAGAIN && errno != EWOULDBLOCK) {
26 con->inbuf_used += res;
27 if (con->inbuf_size == con->inbuf_used) {
28 // The buffer is filled, so stop reading data until we have a new one.
31 // Call the callback AFTERWARDS (after it has finished executing, we might
32 // already have a new read buffer).
37 if (revents & EV_WRITE) {
38 if (bufio_chain_flush(&con->outbuf, w->fd) == 0) {
44 bufio_connection *bufio_connection_create(struct ev_loop *loop, int fd) {
45 bufio_connection *con = calloc(1, sizeof(*con));
46 if (con == NULL) return NULL;
48 ev_io_init(&con->rw, connection_waiting_cb, fd, EV_READ);
49 ev_io_init(&con->ww, connection_waiting_cb, fd, EV_WRITE);
55 void bufio_connection_set_read_buffer(bufio_connection *con, void *buf, size_t size) {
58 con->inbuf_size = size;
61 ev_io_start(con->loop, &con->rw);
64 void bufio_connection_destroy(bufio_connection *con) {
65 bufio_chain_clear(&con->outbuf);
66 ev_io_stop(con->loop, &con->rw);
67 ev_io_stop(con->loop, &con->ww);
71 int bufio_connection_write(bufio_connection *con, void *buf, size_t len) {
73 bool chain_was_empty = (con->outbuf.head == NULL);
74 res = bufio_chain_append(&con->outbuf, buf, len);
75 if (res == -1) return -1;
76 if (chain_was_empty) {
77 if (bufio_chain_flush(&con->outbuf, con->ww.fd)) {
78 ev_io_start(con->loop, &con->ww);