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Add more debug output

This commit is contained in:
Tatsuhiro Tsujikawa 2014-02-11 21:35:41 +09:00
parent 067a4d05c3
commit bac31e844a
1 changed files with 29 additions and 0 deletions
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29
lib/nghttp2_session.c
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@ -1010,6 +1010,10 @@ static size_t nghttp2_session_next_data_read(nghttp2_session *session,
nghttp2_stream *stream)
{
int32_t window_size = NGHTTP2_DATA_PAYLOAD_LENGTH;
DEBUGF(fprintf(stderr, "connection remote_window_size=%d\n",
session->remote_window_size));
/* Take into account both connection-level flow control here */
window_size = nghttp2_min(window_size, session->remote_window_size);
window_size = nghttp2_min(window_size, stream->remote_window_size);
@ -1788,9 +1792,12 @@ int nghttp2_session_send(nghttp2_session *session)
}
framebuflen = nghttp2_session_prep_frame(session, item);
if(framebuflen == NGHTTP2_ERR_DEFERRED) {
DEBUGF(fprintf(stderr, "frame deferred\n"));
continue;
}
if(framebuflen < 0) {
DEBUGF(fprintf(stderr, "frame preparation failed with %s\n",
nghttp2_strerror(framebuflen)));
/* TODO If the error comes from compressor, the connection
must be closed. */
if(item->frame_cat == NGHTTP2_CAT_CTRL &&
@ -3484,6 +3491,9 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
nghttp2_frame_hd cont_hd;
nghttp2_stream *stream;
DEBUGF(fprintf(stderr, "connection recv_window_size=%d, local_window=%d\n",
session->recv_window_size, session->local_window_size));
for(;;) {
switch(iframe->state) {
case NGHTTP2_IB_READ_HEAD:
@ -3571,6 +3581,19 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
case NGHTTP2_PRIORITY:
case NGHTTP2_RST_STREAM:
case NGHTTP2_WINDOW_UPDATE:
#ifdef DEBUGBUILD
switch(iframe->frame.hd.type) {
case NGHTTP2_PRIORITY:
DEBUGF(fprintf(stderr, "PRIORITY\n"));
break;
case NGHTTP2_RST_STREAM:
DEBUGF(fprintf(stderr, "RST_STREAM\n"));
break;
case NGHTTP2_WINDOW_UPDATE:
DEBUGF(fprintf(stderr, "WINDOW_UPDATE\n"));
break;
}
#endif /* DEBUGBUILD */
if(iframe->payloadleft != 4) {
busy = 1;
iframe->state = NGHTTP2_IB_FRAME_SIZE_ERROR;
@ -3598,6 +3621,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
inbound_frame_reset_left(iframe, 0);
break;
case NGHTTP2_PUSH_PROMISE:
DEBUGF(fprintf(stderr, "PUSH_PROMISE\n"));
if(iframe->payloadleft < 4) {
busy = 1;
iframe->state = NGHTTP2_IB_FRAME_SIZE_ERROR;
@ -3607,6 +3631,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
inbound_frame_reset_left(iframe, 4);
break;
case NGHTTP2_PING:
DEBUGF(fprintf(stderr, "PING\n"));
if(iframe->payloadleft != 8) {
busy = 1;
iframe->state = NGHTTP2_IB_FRAME_SIZE_ERROR;
@ -3616,6 +3641,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
inbound_frame_reset_left(iframe, 8);
break;
case NGHTTP2_GOAWAY:
DEBUGF(fprintf(stderr, "GOAWAY\n"));
if(iframe->payloadleft < 8) {
busy = 1;
iframe->state = NGHTTP2_IB_FRAME_SIZE_ERROR;
@ -3625,6 +3651,7 @@ ssize_t nghttp2_session_mem_recv(nghttp2_session *session,
inbound_frame_reset_left(iframe, 8);
break;
default:
DEBUGF(fprintf(stderr, "unknown frame\n"));
/* Receiving unknown frame type and CONTINUATION in this state
are subject to connection error of type PROTOCOL_ERROR */
rv = nghttp2_session_terminate_session(session,
@ -4320,6 +4347,8 @@ ssize_t nghttp2_session_pack_data(nghttp2_session *session,
if(payloadlen == NGHTTP2_ERR_DEFERRED ||
payloadlen == NGHTTP2_ERR_TEMPORAL_CALLBACK_FAILURE) {
DEBUGF(fprintf(stderr, "DATA postponed due to %s\n",
nghttp2_strerror(payloadlen)));
return payloadlen;
}
if(payloadlen < 0 || datamax < (size_t)payloadlen) {