[Spice-devel] [PATCH] fix regression due to callback called earlier
Pavel Grunt
pgrunt at redhat.com
Fri Feb 19 07:20:35 UTC 2016
On Thu, 2016-02-18 at 08:08 -0500, Frediano Ziglio wrote:
> >
> > >
> > > Patch 1f210080609f2c00b4d1859eb0b363a38838e7d3 ("Remove use of
> > > global
> > > 'reds' from AgentMsgFilter") introduced a regression. This
> > > because
> > > QXLInterface->client_monitors_config was called before returning
> > > from spice_add_interface. Some client of spice-server expect the
> > > spice_add_interface already returned and some state change was
> > > done
> > > before client_monitors_config was called.
> > >
> > > Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
> >
> > This fixes https://bugs.freedesktop.org/show_bug.cgi?id=94192.
> >
> > I was wondering if would be better to revert previous and then
> > add this implementation but in this case we'll lose the
> > int -> gboolean changes.
> >
>
> Diff after the revert is
Acked-by: Pavel Grunt <pgrunt at redhat.com>
>
>
> diff --git a/server/agent-msg-filter.c b/server/agent-msg-filter.c
> index 069822b..d72a3e4 100644
> --- a/server/agent-msg-filter.c
> +++ b/server/agent-msg-filter.c
> @@ -28,7 +28,8 @@
> #include "red-dispatcher.h"
>
> void agent_msg_filter_init(struct AgentMsgFilter *filter,
> - int copy_paste, int file_xfer, int
> discard_all)
> + gboolean copy_paste, gboolean file_xfer,
> + int discard_all)
> {
> memset(filter, 0, sizeof(*filter));
> filter->copy_paste_enabled = copy_paste;
> @@ -37,6 +38,7 @@ void agent_msg_filter_init(struct AgentMsgFilter
> *filter,
> }
>
> int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
> + RedsState *reds,
> uint8_t *data, uint32_t len)
> {
> struct VDAgentMessage msg_header;
> diff --git a/server/agent-msg-filter.h b/server/agent-msg-filter.h
> index 92aabce..a4fc4cf 100644
> --- a/server/agent-msg-filter.h
> +++ b/server/agent-msg-filter.h
> @@ -35,14 +35,16 @@ enum {
> typedef struct AgentMsgFilter {
> int msg_data_to_read;
> int result;
> - int copy_paste_enabled;
> - int file_xfer_enabled;
> - int discard_all;
> + gboolean copy_paste_enabled;
> + gboolean file_xfer_enabled;
> + gboolean discard_all;
> } AgentMsgFilter;
>
> void agent_msg_filter_init(struct AgentMsgFilter *filter,
> - int copy_paste, int file_xfer, int
> discard_all);
> + gboolean copy_paste, gboolean file_xfer,
> + gboolean discard_all);
> int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
> + SpiceServer *reds,
> uint8_t *data, uint32_t len);
>
> #endif
> diff --git a/server/reds.c b/server/reds.c
> index bb61a28..b917f26 100644
> --- a/server/reds.c
> +++ b/server/reds.c
> @@ -637,7 +637,7 @@ static int vdi_port_read_buf_process(RedsState
> *reds, VDIReadBuf *buf)
>
> switch (state->vdi_chunk_header.port) {
> case VDP_CLIENT_PORT: {
> - res = agent_msg_filter_process_data(&state->read_filter,
> + res = agent_msg_filter_process_data(&state->read_filter,
> reds,
> buf->data, buf->len);
> switch (res) {
> case AGENT_MSG_FILTER_OK:
> @@ -1047,7 +1047,7 @@ void reds_on_main_agent_data(RedsState *reds,
> MainChannelClient *mcc, void *mess
> VDIChunkHeader *header;
> int res;
>
> - res = agent_msg_filter_process_data(&reds-
> >agent_state.write_filter,
> + res = agent_msg_filter_process_data(&reds-
> >agent_state.write_filter, reds,
> message, size);
> switch (res) {
> case AGENT_MSG_FILTER_OK:
>
>
> Frediano
>
> >
> > > ---
> > > server/agent-msg-filter.c | 5 ++---
> > > server/agent-msg-filter.h | 3 +--
> > > server/reds.c | 18 ++++++------------
> > > 3 files changed, 9 insertions(+), 17 deletions(-)
> > >
> > > diff --git a/server/agent-msg-filter.c b/server/agent-msg-
> > > filter.c
> > > index 14d5100..d72a3e4 100644
> > > --- a/server/agent-msg-filter.c
> > > +++ b/server/agent-msg-filter.c
> > > @@ -29,17 +29,16 @@
> > >
> > > void agent_msg_filter_init(struct AgentMsgFilter *filter,
> > > gboolean copy_paste, gboolean
> > > file_xfer,
> > > - gboolean use_client_monitors_config,
> > > int discard_all)
> > > {
> > > memset(filter, 0, sizeof(*filter));
> > > filter->copy_paste_enabled = copy_paste;
> > > filter->file_xfer_enabled = file_xfer;
> > > - filter->use_client_monitors_config =
> > > use_client_monitors_config;
> > > filter->discard_all = discard_all;
> > > }
> > >
> > > int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
> > > + RedsState *reds,
> > > uint8_t *data, uint32_t len)
> > > {
> > > struct VDAgentMessage msg_header;
> > > @@ -96,7 +95,7 @@ data_to_read:
> > > }
> > > break;
> > > case VD_AGENT_MONITORS_CONFIG:
> > > - if (filter->use_client_monitors_config) {
> > > + if (reds_use_client_monitors_config(reds)) {
> > > filter->result =
> > > AGENT_MSG_FILTER_MONITORS_CONFIG;
> > > } else {
> > > filter->result = AGENT_MSG_FILTER_OK;
> > > diff --git a/server/agent-msg-filter.h b/server/agent-msg-
> > > filter.h
> > > index c04face..a4fc4cf 100644
> > > --- a/server/agent-msg-filter.h
> > > +++ b/server/agent-msg-filter.h
> > > @@ -37,15 +37,14 @@ typedef struct AgentMsgFilter {
> > > int result;
> > > gboolean copy_paste_enabled;
> > > gboolean file_xfer_enabled;
> > > - gboolean use_client_monitors_config;
> > > gboolean discard_all;
> > > } AgentMsgFilter;
> > >
> > > void agent_msg_filter_init(struct AgentMsgFilter *filter,
> > > gboolean copy_paste, gboolean
> > > file_xfer,
> > > - gboolean use_client_monitors_config,
> > > gboolean discard_all);
> > > int agent_msg_filter_process_data(struct AgentMsgFilter *filter,
> > > + SpiceServer *reds,
> > > uint8_t *data, uint32_t len);
> > >
> > > #endif
> > > diff --git a/server/reds.c b/server/reds.c
> > > index 5fb5825..b917f26 100644
> > > --- a/server/reds.c
> > > +++ b/server/reds.c
> > > @@ -407,8 +407,7 @@ static void reds_reset_vdp(RedsState *reds)
> > > }
> > > /* Reset read filter to start with clean state when the
> > > agent
> > > reconnects
> > > */
> > > agent_msg_filter_init(&state->read_filter, reds-
> > > >agent_copypaste,
> > > - reds->agent_file_xfer,
> > > - reds_use_client_monitors_config(reds),
> > > TRUE);
> > > + reds->agent_file_xfer, TRUE);
> > > /* Throw away pending chunks from the current (if any) and
> > > future
> > > * messages written by the client.
> > > * TODO: client should clear its agent messages queue when
> > > the agent
> > > @@ -522,8 +521,7 @@ void reds_client_disconnect(RedsState *reds,
> > > RedClient
> > > *client)
> > >
> > > /* Reset write filter to start with clean state on
> > > client
> > > reconnect
> > > */
> > > agent_msg_filter_init(&reds->agent_state.write_filter,
> > > reds->agent_copypaste,
> > > - reds->agent_file_xfer,
> > > - reds_use_client_monitors_config(re
> > > ds),
> > > TRUE);
> > > + reds->agent_file_xfer, TRUE);
> > >
> > > /* Throw away pending chunks from the current (if any)
> > > and future
> > > * messages read from the agent */
> > > @@ -639,7 +637,7 @@ static int
> > > vdi_port_read_buf_process(RedsState *reds,
> > > VDIReadBuf *buf)
> > >
> > > switch (state->vdi_chunk_header.port) {
> > > case VDP_CLIENT_PORT: {
> > > - res = agent_msg_filter_process_data(&state->read_filter,
> > > + res = agent_msg_filter_process_data(&state->read_filter,
> > > reds,
> > > buf->data, buf-
> > > >len);
> > > switch (res) {
> > > case AGENT_MSG_FILTER_OK:
> > > @@ -1049,7 +1047,7 @@ void reds_on_main_agent_data(RedsState
> > > *reds,
> > > MainChannelClient *mcc, void *mess
> > > VDIChunkHeader *header;
> > > int res;
> > >
> > > - res = agent_msg_filter_process_data(&reds-
> > > >agent_state.write_filter,
> > > + res = agent_msg_filter_process_data(&reds-
> > > >agent_state.write_filter,
> > > reds,
> > > message, size);
> > > switch (res) {
> > > case AGENT_MSG_FILTER_OK:
> > > @@ -3214,8 +3212,6 @@ SPICE_GNUC_VISIBLE int
> > > spice_server_add_interface(SpiceServer *s,
> > > red_dispatcher_init(qxl);
> > > dispatcher = qxl->st->dispatcher;
> > > reds->dispatchers = g_list_prepend(reds->dispatchers,
> > > dispatcher);
> > > - reds-
> > > >agent_state.write_filter.use_client_monitors_config =
> > > reds_use_client_monitors_config(reds);
> > > - reds->agent_state.read_filter.use_client_monitors_config
> > > =
> > > reds_use_client_monitors_config(reds);
> > >
> > > /* this function has to be called after the dispatcher
> > > is on the
> > > list
> > > * as QXLInstance clients expect the dispatcher to be on
> > > the list
> > > when
> > > @@ -3321,11 +3317,9 @@ static void
> > > reds_init_vd_agent_resources(RedsState
> > > *reds)
> > >
> > > ring_init(&state->read_bufs);
> > > agent_msg_filter_init(&state->write_filter, reds-
> > > >agent_copypaste,
> > > - reds->agent_file_xfer,
> > > - reds_use_client_monitors_config(reds),
> > > TRUE);
> > > + reds->agent_file_xfer, TRUE);
> > > agent_msg_filter_init(&state->read_filter, reds-
> > > >agent_copypaste,
> > > - reds->agent_file_xfer,
> > > - reds_use_client_monitors_config(reds),
> > > TRUE);
> > > + reds->agent_file_xfer, TRUE);
> > >
> > > state->read_state = VDI_PORT_READ_STATE_READ_HEADER;
> > > state->receive_pos = (uint8_t *)&state->vdi_chunk_header;
> > > --
> > > 2.5.0
> > >
> > >
> > _______________________________________________
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> > Spice-devel at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/spice-devel
> >
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