static void io_destroy(h2_mplx *m, h2_io *io, int events)
{
int reuse_slave;
/* cleanup any buffered input */
h2_io_in_shutdown(io);
if (events) {
/* Process outstanding events before destruction */
io_in_consumed_signal(m, io);
}
/* The pool is cleared/destroyed which also closes all
* allocated file handles. Give this count back to our
* file handle pool. */
m->tx_handles_reserved += io->files_handles_owned;
h2_io_set_remove(m->stream_ios, io);
h2_io_set_remove(m->ready_ios, io);
if (m->redo_ios) {
h2_io_set_remove(m->redo_ios, io);
}
reuse_slave = ((m->spare_slaves->nelts < m->spare_slaves->nalloc)
&& !io->rst_error && io->eor);
if (io->task) {
conn_rec *slave = io->task->c;
h2_task_destroy(io->task);
io->task = NULL;
if (reuse_slave && slave->keepalive == AP_CONN_KEEPALIVE) {
apr_bucket_delete(io->eor);
io->eor = NULL;
APR_ARRAY_PUSH(m->spare_slaves, conn_rec*) = slave;
}
static void io_destroy(h2_mplx *m, h2_io *io, int events)
{
apr_pool_t *pool = io->pool;
/* cleanup any buffered input */
h2_io_in_shutdown(io);
if (events) {
/* Process outstanding events before destruction */
io_process_events(m, io);
}
io->pool = NULL;
/* The pool is cleared/destroyed which also closes all
* allocated file handles. Give this count back to our
* file handle pool. */
m->tx_handles_reserved += io->files_handles_owned;
h2_io_set_remove(m->stream_ios, io);
h2_io_set_remove(m->ready_ios, io);
h2_io_destroy(io);
if (pool) {
apr_pool_clear(pool);
if (m->spare_pool) {
apr_pool_destroy(m->spare_pool);
}
m->spare_pool = pool;
}
check_tx_free(m);
}
h2_stream *h2_mplx_next_submit(h2_mplx *m, h2_stream_set *streams)
{
apr_status_t status;
h2_stream *stream = NULL;
AP_DEBUG_ASSERT(m);
if (m->aborted) {
return NULL;
}
status = apr_thread_mutex_lock(m->lock);
if (APR_SUCCESS == status) {
h2_io *io = h2_io_set_pop_highest_prio(m->ready_ios);
if (io) {
stream = h2_stream_set_get(streams, io->id);
if (stream) {
if (io->rst_error) {
h2_stream_rst(stream, io->rst_error);
}
else {
AP_DEBUG_ASSERT(io->response);
H2_MPLX_IO_OUT(APLOG_TRACE2, m, io, "h2_mplx_next_submit_pre");
h2_stream_set_response(stream, io->response, io->bbout);
H2_MPLX_IO_OUT(APLOG_TRACE2, m, io, "h2_mplx_next_submit_post");
}
}
else {
/* We have the io ready, but the stream has gone away, maybe
* reset by the client. Should no longer happen since such
* streams should clear io's from the ready queue.
*/
ap_log_cerror(APLOG_MARK, APLOG_INFO, 0, m->c, APLOGNO(02953)
"h2_mplx(%ld): stream for response %d closed, "
"resetting io to close request processing",
m->id, io->id);
io->orphaned = 1;
if (io->task_done) {
io_destroy(m, io, 1);
}
else {
/* hang around until the h2_task is done, but
* shutdown input and send out any events (e.g. window
* updates) asap. */
h2_io_in_shutdown(io);
h2_io_rst(io, H2_ERR_STREAM_CLOSED);
io_process_events(m, io);
}
}
if (io->output_drained) {
apr_thread_cond_signal(io->output_drained);
}
}
apr_thread_mutex_unlock(m->lock);
}
return stream;
}
h2_stream *h2_mplx_next_submit(h2_mplx *m, h2_stream_set *streams)
{
apr_status_t status;
h2_stream *stream = NULL;
int acquired;
AP_DEBUG_ASSERT(m);
if ((status = enter_mutex(m, &acquired)) == APR_SUCCESS) {
h2_io *io = h2_io_set_pop_highest_prio(m->ready_ios);
if (io && !m->aborted) {
stream = h2_stream_set_get(streams, io->id);
if (stream) {
if (io->rst_error) {
h2_stream_rst(stream, io->rst_error);
}
else {
AP_DEBUG_ASSERT(io->response);
H2_MPLX_IO_OUT(APLOG_TRACE2, m, io, "h2_mplx_next_submit_pre");
h2_stream_set_response(stream, io->response, io->bbout);
H2_MPLX_IO_OUT(APLOG_TRACE2, m, io, "h2_mplx_next_submit_post");
}
}
else {
/* We have the io ready, but the stream has gone away, maybe
* reset by the client. Should no longer happen since such
* streams should clear io's from the ready queue.
*/
ap_log_cerror(APLOG_MARK, APLOG_TRACE1, 0, m->c,
"h2_mplx(%ld): stream for response %d closed, "
"resetting io to close request processing",
m->id, io->id);
h2_io_make_orphaned(io, H2_ERR_STREAM_CLOSED);
if (!io->worker_started || io->worker_done) {
io_destroy(m, io, 1);
}
else {
/* hang around until the h2_task is done, but
* shutdown input and send out any events (e.g. window
* updates) asap. */
h2_io_in_shutdown(io);
io_process_events(m, io);
}
}
h2_io_signal(io, H2_IO_WRITE);
}
leave_mutex(m, acquired);
}
return stream;
}
