[Spice-devel] [PATCH 02/10] server: remove dispatching creation of worker channels
Frediano Ziglio
fziglio at redhat.com
Thu Nov 5 01:14:55 PST 2015
From: Marc-André Lureau <marcandre.lureau at gmail.com>
---
server/dispatcher.c | 6 ++--
server/red_dispatcher.c | 74 ++++++++++++++-------------------------------
server/red_dispatcher.h | 36 ++--------------------
server/red_worker.c | 68 ++++++++++++++---------------------------
server/red_worker.h | 2 ++
server/spice_server_utils.h | 1 -
6 files changed, 51 insertions(+), 136 deletions(-)
diff --git a/server/dispatcher.c b/server/dispatcher.c
index d334117..945edba 100644
--- a/server/dispatcher.c
+++ b/server/dispatcher.c
@@ -32,7 +32,6 @@
#include "common/mem.h"
#include "common/spice_common.h"
#include "dispatcher.h"
-#include "red_dispatcher.h"
//#define DEBUG_DISPATCHER
@@ -203,12 +202,13 @@ unlock:
uint32_t dispatcher_read_message(Dispatcher *dispatcher)
{
- uint32_t message;
+ uint32_t message = 0;
spice_return_val_if_fail(dispatcher, 0);
spice_return_val_if_fail(dispatcher->send_fd != -1, 0);
- receive_data(dispatcher->send_fd, &message, sizeof(message));
+ if (read_safe(dispatcher->send_fd, (uint8_t*)&message, sizeof(message), 1) == -1)
+ spice_warn_if_reached();
return message;
}
diff --git a/server/red_dispatcher.c b/server/red_dispatcher.c
index 43f061d..7855776 100644
--- a/server/red_dispatcher.c
+++ b/server/red_dispatcher.c
@@ -1001,35 +1001,10 @@ void red_dispatcher_async_complete(struct RedDispatcher *dispatcher,
free(async_command);
}
-static RedChannel *red_dispatcher_display_channel_create(RedDispatcher *dispatcher)
-{
- RedWorkerMessageDisplayChannelCreate payload;
- RedChannel *display_channel;
-
- dispatcher_send_message(&dispatcher->dispatcher,
- RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE,
- &payload);
- receive_data(dispatcher->dispatcher.send_fd, &display_channel, sizeof(RedChannel *));
- return display_channel;
-}
-
-static RedChannel *red_dispatcher_cursor_channel_create(RedDispatcher *dispatcher)
-{
- RedWorkerMessageCursorChannelCreate payload;
- RedChannel *cursor_channel;
-
- dispatcher_send_message(&dispatcher->dispatcher,
- RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE,
- &payload);
- receive_data(dispatcher->dispatcher.send_fd, &cursor_channel, sizeof(RedChannel *));
- return cursor_channel;
-}
-
void red_dispatcher_init(QXLInstance *qxl)
{
RedDispatcher *red_dispatcher;
- RedChannel *display_channel;
- RedChannel *cursor_channel;
+ RedChannel *channel;
ClientCbs client_cbs = { NULL, };
spice_return_if_fail(qxl != NULL);
@@ -1074,34 +1049,29 @@ void red_dispatcher_init(QXLInstance *qxl)
// TODO: reference and free
RedWorker *worker = red_worker_new(qxl, red_dispatcher);
- red_worker_run(worker);
-
- num_active_workers = 1;
- display_channel = red_dispatcher_display_channel_create(red_dispatcher);
-
- if (display_channel) {
- client_cbs.connect = red_dispatcher_set_display_peer;
- client_cbs.disconnect = red_dispatcher_disconnect_display_peer;
- client_cbs.migrate = red_dispatcher_display_migrate;
- red_channel_register_client_cbs(display_channel, &client_cbs);
- red_channel_set_data(display_channel, red_dispatcher);
- red_channel_set_cap(display_channel, SPICE_DISPLAY_CAP_MONITORS_CONFIG);
- red_channel_set_cap(display_channel, SPICE_DISPLAY_CAP_PREF_COMPRESSION);
- red_channel_set_cap(display_channel, SPICE_DISPLAY_CAP_STREAM_REPORT);
- reds_register_channel(display_channel);
- }
-
- cursor_channel = red_dispatcher_cursor_channel_create(red_dispatcher);
+ // TODO: move to their respective channel files
+ channel = red_worker_get_cursor_channel(worker);
+ client_cbs.connect = red_dispatcher_set_cursor_peer;
+ client_cbs.disconnect = red_dispatcher_disconnect_cursor_peer;
+ client_cbs.migrate = red_dispatcher_cursor_migrate;
+ red_channel_register_client_cbs(channel, &client_cbs);
+ red_channel_set_data(channel, red_dispatcher);
+ reds_register_channel(channel);
+
+ channel = red_worker_get_display_channel(worker);
+ client_cbs.connect = red_dispatcher_set_display_peer;
+ client_cbs.disconnect = red_dispatcher_disconnect_display_peer;
+ client_cbs.migrate = red_dispatcher_display_migrate;
+ red_channel_register_client_cbs(channel, &client_cbs);
+ red_channel_set_data(channel, red_dispatcher);
+ red_channel_set_cap(channel, SPICE_DISPLAY_CAP_MONITORS_CONFIG);
+ red_channel_set_cap(channel, SPICE_DISPLAY_CAP_PREF_COMPRESSION);
+ red_channel_set_cap(channel, SPICE_DISPLAY_CAP_STREAM_REPORT);
+ reds_register_channel(channel);
- if (cursor_channel) {
- client_cbs.connect = red_dispatcher_set_cursor_peer;
- client_cbs.disconnect = red_dispatcher_disconnect_cursor_peer;
- client_cbs.migrate = red_dispatcher_cursor_migrate;
- red_channel_register_client_cbs(cursor_channel, &client_cbs);
- red_channel_set_data(cursor_channel, red_dispatcher);
- reds_register_channel(cursor_channel);
- }
+ red_worker_run(worker);
+ num_active_workers = 1;
qxl->st->dispatcher = red_dispatcher;
red_dispatcher->next = dispatchers;
diff --git a/server/red_dispatcher.h b/server/red_dispatcher.h
index 242143a..02337b8 100644
--- a/server/red_dispatcher.h
+++ b/server/red_dispatcher.h
@@ -45,38 +45,6 @@ void red_dispatcher_client_monitors_config(VDAgentMonitorsConfig *monitors_confi
typedef uint32_t RedWorkerMessage;
-static inline void send_data(int fd, void *in_buf, int n)
-{
- uint8_t *buf = in_buf;
- do {
- int now;
- if ((now = write(fd, buf, n)) == -1) {
- if (errno == EINTR) {
- continue;
- }
- spice_error("%s", strerror(errno));
- }
- buf += now;
- n -= now;
- } while (n);
-}
-
-static inline void receive_data(int fd, void *in_buf, int n)
-{
- uint8_t *buf = in_buf;
- do {
- int now;
- if ((now = read(fd, buf, n)) == -1) {
- if (errno == EINTR) {
- continue;
- }
- spice_error("%s", strerror(errno));
- }
- buf += now;
- n -= now;
- } while (n);
-}
-
/* Keep message order, only append new messages!
* Replay code store enum values into save files.
*/
@@ -119,8 +87,8 @@ enum {
/* suspend/windows resolution change command */
RED_WORKER_MESSAGE_FLUSH_SURFACES_ASYNC,
- RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE,
- RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE,
+ RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE, /* unused */
+ RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE, /* unused */
RED_WORKER_MESSAGE_MONITORS_CONFIG_ASYNC,
RED_WORKER_MESSAGE_DRIVER_UNLOAD,
diff --git a/server/red_worker.c b/server/red_worker.c
index 821ea75..d8a8a4a 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -436,8 +436,6 @@ typedef struct RedWorker {
clockid_t clockid;
QXLInstance *qxl;
RedDispatcher *red_dispatcher;
-
- int channel;
int running;
struct pollfd poll_fds[MAX_EVENT_SOURCES];
struct SpiceWatch watches[MAX_EVENT_SOURCES];
@@ -9903,23 +9901,6 @@ void handle_dev_create_primary_surface_async(void *opaque, void *payload)
dev_create_primary_surface(worker, msg->surface_id, msg->surface);
}
-/* exception for Dispatcher, data going from red_worker to main thread,
- * TODO: use a different dispatcher?
- * TODO: leave direct usage of channel(fd)? It's only used right after the
- * pthread is created, since the channel duration is the lifetime of the spice
- * server. */
-
-void handle_dev_display_channel_create(void *opaque, void *payload)
-{
- RedWorker *worker = opaque;
-
- RedChannel *red_channel;
- // TODO: handle seemless migration. Temp, setting migrate to FALSE
- display_channel_create(worker, FALSE);
- red_channel = &worker->display_channel->common.base;
- send_data(worker->channel, &red_channel, sizeof(RedChannel *));
-}
-
void handle_dev_display_connect(void *opaque, void *payload)
{
RedWorkerMessageDisplayConnect *msg = payload;
@@ -10011,21 +9992,6 @@ static void handle_dev_monitors_config_async(void *opaque, void *payload)
}
/* TODO: special, perhaps use another dispatcher? */
-void handle_dev_cursor_channel_create(void *opaque, void *payload)
-{
- RedWorker *worker = opaque;
- RedChannel *red_channel;
-
- if (!worker->cursor_channel) {
- worker->cursor_channel = cursor_channel_new(worker);
- } else {
- spice_warning("cursor channel already created");
- }
-
- red_channel = RED_CHANNEL(worker->cursor_channel);
- send_data(worker->channel, &red_channel, sizeof(RedChannel *));
-}
-
void handle_dev_cursor_connect(void *opaque, void *payload)
{
RedWorkerMessageCursorConnect *msg = payload;
@@ -10371,16 +10337,6 @@ static void register_callbacks(Dispatcher *dispatcher)
sizeof(RedWorkerMessageSetMouseMode),
DISPATCHER_NONE);
dispatcher_register_handler(dispatcher,
- RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE,
- handle_dev_display_channel_create,
- sizeof(RedWorkerMessageDisplayChannelCreate),
- DISPATCHER_NONE);
- dispatcher_register_handler(dispatcher,
- RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE,
- handle_dev_cursor_channel_create,
- sizeof(RedWorkerMessageCursorChannelCreate),
- DISPATCHER_NONE);
- dispatcher_register_handler(dispatcher,
RED_WORKER_MESSAGE_DESTROY_SURFACE_WAIT,
handle_dev_destroy_surface_wait,
sizeof(RedWorkerMessageDestroySurfaceWait),
@@ -10445,7 +10401,6 @@ RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher *red_dispatcher)
worker->red_dispatcher = red_dispatcher;
worker->qxl = qxl;
- worker->channel = dispatcher_get_recv_fd(dispatcher);
register_callbacks(dispatcher);
if (worker->record_fd) {
dispatcher_register_universal_handler(dispatcher, worker_dispatcher_record);
@@ -10474,7 +10429,7 @@ RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher *red_dispatcher)
worker->poll_fds[i].fd = -1;
}
- worker->poll_fds[0].fd = worker->channel;
+ worker->poll_fds[0].fd = dispatcher_get_recv_fd(dispatcher);
worker->poll_fds[0].events = POLLIN;
worker->watches[0].worker = worker;
worker->watches[0].watch_func = handle_dev_input;
@@ -10499,6 +10454,10 @@ RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher *red_dispatcher)
red_init_zlib(worker);
worker->event_timeout = INF_EVENT_WAIT;
+ worker->cursor_channel = cursor_channel_new(worker);
+ // TODO: handle seemless migration. Temp, setting migrate to FALSE
+ display_channel_create(worker, FALSE);
+
return worker;
}
@@ -10525,6 +10484,9 @@ SPICE_GNUC_NORETURN static void *red_worker_main(void *arg)
spice_warning("getcpuclockid failed");
}
+ RED_CHANNEL(worker->cursor_channel)->thread_id = pthread_self();
+ RED_CHANNEL(worker->display_channel)->thread_id = pthread_self();
+
for (;;) {
int i, num_events;
unsigned int timeout;
@@ -10609,3 +10571,17 @@ bool red_worker_run(RedWorker *worker)
return r == 0;
}
+
+RedChannel* red_worker_get_cursor_channel(RedWorker *worker)
+{
+ spice_return_val_if_fail(worker, NULL);
+
+ return RED_CHANNEL(worker->cursor_channel);
+}
+
+RedChannel* red_worker_get_display_channel(RedWorker *worker)
+{
+ spice_return_val_if_fail(worker, NULL);
+
+ return RED_CHANNEL(worker->display_channel);
+}
diff --git a/server/red_worker.h b/server/red_worker.h
index 33dd974..2995b8f 100644
--- a/server/red_worker.h
+++ b/server/red_worker.h
@@ -106,6 +106,8 @@ static inline void red_pipes_add_verb(RedChannel *channel, uint16_t verb)
RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher *red_dispatcher);
bool red_worker_run(RedWorker *worker);
QXLInstance* red_worker_get_qxl(RedWorker *worker);
+RedChannel* red_worker_get_cursor_channel(RedWorker *worker);
+RedChannel* red_worker_get_display_channel(RedWorker *worker);
RedChannel *red_worker_new_channel(RedWorker *worker, int size,
const char *name,
diff --git a/server/spice_server_utils.h b/server/spice_server_utils.h
index 1f5b7f1..087ad6f 100644
--- a/server/spice_server_utils.h
+++ b/server/spice_server_utils.h
@@ -37,5 +37,4 @@ static inline int test_bit(int index, uint32_t val)
{
return val & (1u << index);
}
-
#endif
--
2.4.3
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