void h2o_socket_write(h2o_socket_t *sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb)
{
size_t i, prev_bytes_written = sock->bytes_written;
for (i = 0; i != bufcnt; ++i) {
sock->bytes_written = bufs[i].len;
#if H2O_SOCKET_DUMP_WRITE
fprintf(stderr, "writing %zu bytes to fd:%d\n", bufs[i].len, h2o_socket_get_fd(sock));
h2o_dump_memory(stderr, bufs[i].base, bufs[i].len);
#endif
}
if (sock->ssl == NULL) {
do_write(sock, bufs, bufcnt, cb);
} else {
assert(sock->ssl->output.bufs.size == 0);
/* fill in the data */
size_t ssl_record_size;
switch (sock->_latency_optimization.state) {
case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_TBD:
case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DISABLED:
ssl_record_size = prev_bytes_written < 200 * 1024 ? calc_suggested_tls_payload_size(sock, 1400) : 16384;
break;
case H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_DETERMINED:
sock->_latency_optimization.state = H2O_SOCKET_LATENCY_OPTIMIZATION_STATE_NEEDS_UPDATE;
/* fallthru */
default:
ssl_record_size = sock->_latency_optimization.suggested_tls_payload_size;
break;
}
for (; bufcnt != 0; ++bufs, --bufcnt) {
size_t off = 0;
while (off != bufs[0].len) {
int ret;
size_t sz = bufs[0].len - off;
if (sz > ssl_record_size)
sz = ssl_record_size;
ret = SSL_write(sock->ssl->ssl, bufs[0].base + off, (int)sz);
if (ret != sz) {
/* The error happens if SSL_write is called after SSL_read returns a fatal error (e.g. due to corrupt TCP packet
* being received). We need to take care of this since some protocol implementations send data after the read-
* side of the connection gets closed (note that protocol implementations are (yet) incapable of distinguishing
* a normal shutdown and close due to an error using the `status` value of the read callback).
*/
clear_output_buffer(sock->ssl);
flush_pending_ssl(sock, cb);
#ifndef H2O_USE_LIBUV
((struct st_h2o_evloop_socket_t *)sock)->_flags |= H2O_SOCKET_FLAG_IS_WRITE_ERROR;
#endif
return;
}
off += sz;
}
}
flush_pending_ssl(sock, cb);
}
}
void h2o_socket_write(h2o_socket_t *sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb)
{
#if H2O_SOCKET_DUMP_WRITE
{
size_t i;
for (i = 0; i != bufcnt; ++i) {
fprintf(stderr, "writing %zu bytes to fd:%d\n", bufs[i].len,
#if H2O_USE_LIBUV
((struct st_h2o_uv_socket_t *)sock)->uv.stream->io_watcher.fd
#else
((struct st_h2o_evloop_socket_t *)sock)->fd
#endif
);
h2o_dump_memory(stderr, bufs[i].base, bufs[i].len);
}
}
#endif
if (sock->ssl == NULL) {
do_write(sock, bufs, bufcnt, cb);
} else {
assert(sock->ssl->output.bufs.size == 0);
/* fill in the data */
for (; bufcnt != 0; ++bufs, --bufcnt) {
size_t off = 0;
while (off != bufs[0].len) {
int ret;
size_t sz = bufs[0].len - off;
if (sz > 1400)
sz = 1400;
ret = SSL_write(sock->ssl->ssl, bufs[0].base + off, (int)sz);
if (ret != sz) {
/* The error happens if SSL_write is called after SSL_read returns a fatal error (e.g. due to corrupt TCP packet
* being received). We need to take care of this since some protocol implementations send data after the read-
* side of the connection gets closed (note that protocol implementations are (yet) incapable of distinguishing
* a normal shutdown and close due to an error using the `status` value of the read callback).
*/
clear_output_buffer(sock->ssl);
flush_pending_ssl(sock, cb);
#ifndef H2O_USE_LIBUV
((struct st_h2o_evloop_socket_t *)sock)->_flags |= H2O_SOCKET_FLAG_IS_WRITE_ERROR;
#endif
return;
}
off += sz;
}
}
flush_pending_ssl(sock, cb);
}
}
void h2o_socket_write(h2o_socket_t *sock, h2o_iovec_t *bufs, size_t bufcnt, h2o_socket_cb cb)
{
#if H2O_SOCKET_DUMP_WRITE
{
size_t i;
for (i = 0; i != bufcnt; ++i) {
fprintf(stderr, "writing %zu bytes to fd:%d\n", bufs[i].len,
#if H2O_USE_LIBUV
((struct st_h2o_uv_socket_t *)sock)->uv.stream->io_watcher.fd
#else
((struct st_h2o_evloop_socket_t *)sock)->fd
#endif
);
h2o_dump_memory(stderr, bufs[i].base, bufs[i].len);
}
}
#endif
if (sock->ssl == NULL) {
do_write(sock, bufs, bufcnt, cb);
} else {
assert(sock->ssl->output.bufs.size == 0);
/* fill in the data */
for (; bufcnt != 0; ++bufs, --bufcnt) {
size_t off = 0;
while (off != bufs[0].len) {
int ret;
size_t sz = bufs[0].len - off;
if (sz > 1400)
sz = 1400;
ret = SSL_write(sock->ssl->ssl, bufs[0].base + off, (int)sz);
assert(ret == sz);
off += sz;
}
}
flush_pending_ssl(sock, cb);
}
}
