Re: [PATCH 7/9] worker: remove need for WorkerInitData

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On Wed, 2015-10-21 at 13:00 +0100, Frediano Ziglio wrote:
> From: Marc-André Lureau <marcandre.lureau@xxxxxxxxx>
> 
> Move code around to declare and place it where it fits better.
> ---
>  server/red_dispatcher.c | 106 +++++++++++++-------------------------
> ----------
>  server/red_dispatcher.h |   7 ++++
>  server/red_worker.c     |  56 +++++++++++++------------
>  server/red_worker.h     |  35 +---------------
>  server/reds.c           |  44 +++++++++++++++++++-
>  server/reds.h           |  16 ++++++++
>  6 files changed, 125 insertions(+), 139 deletions(-)
> 
> diff --git a/server/red_dispatcher.c b/server/red_dispatcher.c
> index c43da7d..3e7a5e1 100644
> --- a/server/red_dispatcher.c
> +++ b/server/red_dispatcher.c
> @@ -68,11 +68,6 @@ struct RedDispatcher {
>      unsigned int max_monitors;
>  };
>  
> -extern uint32_t streaming_video;
> -extern SpiceImageCompression image_compression;
> -extern spice_wan_compression_t jpeg_state;
> -extern spice_wan_compression_t zlib_glz_state;
> -
>  static RedDispatcher *dispatchers = NULL;
>  
>  static int red_dispatcher_check_qxl_version(RedDispatcher *rd, int
> major, int minor)
> @@ -204,46 +199,6 @@ static void
> red_dispatcher_cursor_migrate(RedChannelClient *rcc)
>                              &payload);
>  }
>  
> -typedef struct RendererInfo {
> -    int id;
> -    const char *name;
> -} RendererInfo;
> -
> -static RendererInfo renderers_info[] = {
> -    {RED_RENDERER_SW, "sw"},
> -#ifdef USE_OPENGL
> -    {RED_RENDERER_OGL_PBUF, "oglpbuf"},
> -    {RED_RENDERER_OGL_PIXMAP, "oglpixmap"},
> -#endif
> -    {RED_RENDERER_INVALID, NULL},
> -};
> -
> -static uint32_t renderers[RED_RENDERER_LAST];
> -static uint32_t num_renderers = 0;
> -
> -static RendererInfo *find_renderer(const char *name)
> -{
> -    RendererInfo *inf = renderers_info;
> -    while (inf->name) {
> -        if (strcmp(name, inf->name) == 0) {
> -            return inf;
> -        }
> -        inf++;
> -    }
> -    return NULL;
> -}
> -
> -int red_dispatcher_add_renderer(const char *name)
> -{
> -    RendererInfo *inf;
> -
> -    if (num_renderers == RED_RENDERER_LAST || !(inf =
> find_renderer(name))) {
> -        return FALSE;
> -    }
> -    renderers[num_renderers++] = inf->id;
> -    return TRUE;
> -}
> -
>  int red_dispatcher_qxl_count(void)
>  {
>      return num_active_workers;
> @@ -623,14 +578,24 @@ static void qxl_worker_reset_memslots(QXLWorker
> *qxl_worker)
>      red_dispatcher_reset_memslots((RedDispatcher*)qxl_worker);
>  }
>  
> +static bool red_dispatcher_set_pending(RedDispatcher *dispatcher,
> int pending)
> +{
> +    // TODO: this is not atomic, do we need atomic?
> +    if (test_bit(pending, dispatcher->pending)) {
> +        return TRUE;
> +    }
> +
> +    set_bit(pending, &dispatcher->pending);
> +    return FALSE;
> +}
> +
>  static void red_dispatcher_wakeup(RedDispatcher *dispatcher)
>  {
>      RedWorkerMessageWakeup payload;
>  
> -    if (test_bit(RED_WORKER_PENDING_WAKEUP, dispatcher->pending)) {
> +    if (red_dispatcher_set_pending(dispatcher,
> RED_DISPATCHER_PENDING_WAKEUP))
>          return;
> -    }
> -    set_bit(RED_WORKER_PENDING_WAKEUP, &dispatcher->pending);
> +
>      dispatcher_send_message(&dispatcher->dispatcher,
>                              RED_WORKER_MESSAGE_WAKEUP,
>                              &payload);
> @@ -645,10 +610,9 @@ static void red_dispatcher_oom(RedDispatcher
> *dispatcher)
>  {
>      RedWorkerMessageOom payload;
>  
> -    if (test_bit(RED_WORKER_PENDING_OOM, dispatcher->pending)) {
> +    if (red_dispatcher_set_pending(dispatcher,
> RED_DISPATCHER_PENDING_OOM))
>          return;
> -    }
> -    set_bit(RED_WORKER_PENDING_OOM, &dispatcher->pending);
> +


These "pending" changes seem unrelated. I would split them into a separate commit.


>      dispatcher_send_message(&dispatcher->dispatcher,
>                              RED_WORKER_MESSAGE_OOM,
>                              &payload);
> @@ -1063,12 +1027,11 @@ static RedChannel
> *red_dispatcher_cursor_channel_create(RedDispatcher *dispatche
>  RedDispatcher *red_dispatcher_new(QXLInstance *qxl)
>  {
>      RedDispatcher *red_dispatcher;
> -    WorkerInitData init_data;
> -    QXLDevInitInfo init_info;
>      RedChannel *display_channel;
>      RedChannel *cursor_channel;
>      ClientCbs client_cbs = { NULL, };
>  
> +    spice_return_val_if_fail(qxl != NULL, NULL);
>      spice_return_val_if_fail(qxl->st->dispatcher == NULL, NULL);
>  
>      static gsize initialized = FALSE;
> @@ -1082,22 +1045,11 @@ RedDispatcher *red_dispatcher_new(QXLInstance
> *qxl)
>      }
>  
>      red_dispatcher = spice_new0(RedDispatcher, 1);
> +    red_dispatcher->qxl = qxl;
>      ring_init(&red_dispatcher->async_commands);
>      spice_debug("red_dispatcher->async_commands.next %p",
> red_dispatcher->async_commands.next);
>      dispatcher_init(&red_dispatcher->dispatcher,
> RED_WORKER_MESSAGE_COUNT, NULL);
> -    init_data.qxl = red_dispatcher->qxl = qxl;
> -    init_data.id = qxl->id;
> -    init_data.red_dispatcher = red_dispatcher;
> -    init_data.pending = &red_dispatcher->pending;
> -    init_data.num_renderers = num_renderers;
> -    memcpy(init_data.renderers, renderers,
> sizeof(init_data.renderers));
> -
>      pthread_mutex_init(&red_dispatcher->async_lock, NULL);
> -    init_data.image_compression = image_compression;
> -    init_data.jpeg_state = jpeg_state;
> -    init_data.zlib_glz_state = zlib_glz_state;
> -    init_data.streaming_video = streaming_video;
> -
>      red_dispatcher->base.major_version = SPICE_INTERFACE_QXL_MAJOR;
>      red_dispatcher->base.minor_version = SPICE_INTERFACE_QXL_MINOR;
>      red_dispatcher->base.wakeup = qxl_worker_wakeup;
> @@ -1111,7 +1063,6 @@ RedDispatcher *red_dispatcher_new(QXLInstance
> *qxl)
>      red_dispatcher->base.destroy_surfaces =
> qxl_worker_destroy_surfaces;
>      red_dispatcher->base.create_primary_surface =
> qxl_worker_create_primary_surface;
>      red_dispatcher->base.destroy_primary_surface =
> qxl_worker_destroy_primary_surface;
> -

This whitespace change is rather superfluous. I'd probably just omit
it.

>      red_dispatcher->base.reset_image_cache =
> qxl_worker_reset_image_cache;
>      red_dispatcher->base.reset_cursor = qxl_worker_reset_cursor;
>      red_dispatcher->base.destroy_surface_wait =
> qxl_worker_destroy_surface_wait;
> @@ -1119,20 +1070,12 @@ RedDispatcher *red_dispatcher_new(QXLInstance
> *qxl)
>  
>      red_dispatcher->max_monitors = UINT_MAX;
>  
> -    qxl->st->qif->get_init_info(qxl, &init_info);
> -
> -    init_data.memslot_id_bits = init_info.memslot_id_bits;
> -    init_data.memslot_gen_bits = init_info.memslot_gen_bits;
> -    init_data.num_memslots = init_info.num_memslots;
> -    init_data.num_memslots_groups = init_info.num_memslots_groups;
> -    init_data.internal_groupslot_id =
> init_info.internal_groupslot_id;
> -    init_data.n_surfaces = init_info.n_surfaces;
> +    // TODO: reference and free
> +    RedWorker *worker = red_worker_new(qxl, red_dispatcher);
> +    red_worker_run(worker);
>  
>      num_active_workers = 1;
>  
> -    // TODO: reference and free
> -    RedWorker *worker = red_worker_new(&init_data);
> -    red_worker_run(worker);
>      display_channel =
> red_dispatcher_display_channel_create(red_dispatcher);
>  
>      if (display_channel) {
> @@ -1173,8 +1116,15 @@ struct Dispatcher
> *red_dispatcher_get_dispatcher(RedDispatcher *red_dispatcher)
>      return &red_dispatcher->dispatcher;
>  }
>  
> -void red_dispatcher_set_dispatcher_opaque(struct RedDispatcher
> *red_dispatcher,
> +void red_dispatcher_set_dispatcher_opaque(RedDispatcher
> *red_dispatcher,
>                                            void *opaque)

unrelated style change. split?

>  {
>      dispatcher_set_opaque(&red_dispatcher->dispatcher, opaque);
>  }
> +
> +void red_dispatcher_clear_pending(RedDispatcher *red_dispatcher, int
> pending)
> +{
> +    spice_return_if_fail(red_dispatcher != NULL);
> +
> +    clear_bit(pending, &red_dispatcher->pending);
> +}
> diff --git a/server/red_dispatcher.h b/server/red_dispatcher.h
> index f487317..3bdeac0 100644
> --- a/server/red_dispatcher.h
> +++ b/server/red_dispatcher.h
> @@ -293,4 +293,11 @@ typedef struct
> RedWorkerMessageMonitorsConfigAsync {
>  typedef struct RedWorkerMessageDriverUnload {
>  } RedWorkerMessageDriverUnload;
>  
> +enum {
> +    RED_DISPATCHER_PENDING_WAKEUP,
> +    RED_DISPATCHER_PENDING_OOM,
> +};
> +
> +void red_dispatcher_clear_pending(RedDispatcher *red_dispatcher, int
> pending);
> +

Another "pending" change. Split to a separate commit.

>  #endif
> diff --git a/server/red_worker.c b/server/red_worker.c
> index 65961db..7f73409 100644
> --- a/server/red_worker.c
> +++ b/server/red_worker.c
> @@ -869,10 +869,11 @@ typedef struct RedWorker {
>      int channel;
>      int id;
>      int running;
> -    uint32_t *pending;

Again.

>      struct pollfd poll_fds[MAX_EVENT_SOURCES];
>      struct SpiceWatch watches[MAX_EVENT_SOURCES];
>      unsigned int event_timeout;
> +
> +    gint timeout;
>      uint32_t repoll_cmd_ring;
>      uint32_t repoll_cursor_ring;
>      uint32_t num_renderers;
> @@ -11271,8 +11272,8 @@ void handle_dev_wakeup(void *opaque, void
> *payload)
>  {
>      RedWorker *worker = opaque;
>  
> -    clear_bit(RED_WORKER_PENDING_WAKEUP, worker->pending);
>      stat_inc_counter(worker->wakeup_counter, 1);
> +    red_dispatcher_clear_pending(worker->red_dispatcher,
> RED_DISPATCHER_PENDING_WAKEUP);
>  }
>  
>  void handle_dev_oom(void *opaque, void *payload)
> @@ -11305,7 +11306,7 @@ void handle_dev_oom(void *opaque, void
> *payload)
>                  worker->current_size,
>                  worker->display_channel ?
>                  red_channel_sum_pipes_size(display_red_channel) :
> 0);
> -    clear_bit(RED_WORKER_PENDING_OOM, worker->pending);
> +    red_dispatcher_clear_pending(worker->red_dispatcher,
> RED_DISPATCHER_PENDING_OOM);

two more "pending" chunks to split.

>  }
>  
>  void handle_dev_reset_cursor(void *opaque, void *payload)
> @@ -11852,15 +11853,20 @@ static void handle_dev_input(int fd, int
> event, void *opaque)
>      dispatcher_handle_recv_read(red_dispatcher_get_dispatcher(worker
> ->red_dispatcher));
>  }
>  
> -RedWorker* red_worker_new(WorkerInitData *init_data)
> +RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher
> *red_dispatcher)
>  {
> -    RedWorker *worker = spice_new0(RedWorker, 1);
> +    QXLDevInitInfo init_info;
> +    RedWorker *worker;
>      Dispatcher *dispatcher;
>      int i;
>      const char *record_filename;
>  
>      spice_assert(sizeof(CursorItem) <= QXL_CURSUR_DEVICE_DATA_SIZE);
>  
> +    qxl->st->qif->get_init_info(qxl, &init_info);
> +
> +    worker = spice_new0(RedWorker, 1);
> +
>      record_filename = getenv("SPICE_WORKER_RECORD_FILENAME");
>      if (record_filename) {
>          static const char header[] = "SPICE_REPLAY 1\n";
> @@ -11873,27 +11879,27 @@ RedWorker* red_worker_new(WorkerInitData
> *init_data)
>              spice_error("failed to write replay header");
>          }
>      }
> -    dispatcher = red_dispatcher_get_dispatcher(init_data
> ->red_dispatcher);
> +    dispatcher = red_dispatcher_get_dispatcher(red_dispatcher);
>      dispatcher_set_opaque(dispatcher, worker);
> -    worker->red_dispatcher = init_data->red_dispatcher;
> -    worker->qxl = init_data->qxl;
> -    worker->id = init_data->id;
> +
> +    worker->red_dispatcher = red_dispatcher;
> +    worker->qxl = qxl;
> +    worker->id = qxl->id;
>      worker->channel = dispatcher_get_recv_fd(dispatcher);
>      register_callbacks(dispatcher);
>      if (worker->record_fd) {
>          dispatcher_register_universal_handler(dispatcher,
> worker_dispatcher_record);
>      }
> -    worker->pending = init_data->pending;
>      worker->cursor_visible = TRUE;
> -    spice_assert(init_data->num_renderers > 0);
> -    worker->num_renderers = init_data->num_renderers;
> -    memcpy(worker->renderers, init_data->renderers, sizeof(worker
> ->renderers));
> +    spice_assert(num_renderers > 0);
> +    worker->num_renderers = num_renderers;
> +    memcpy(worker->renderers, renderers, sizeof(worker->renderers));
>      worker->renderer = RED_RENDERER_INVALID;
>      worker->mouse_mode = SPICE_MOUSE_MODE_SERVER;
> -    worker->image_compression = init_data->image_compression;
> -    worker->jpeg_state = init_data->jpeg_state;
> -    worker->zlib_glz_state = init_data->zlib_glz_state;
> -    worker->streaming_video = init_data->streaming_video;
> +    worker->image_compression = image_compression;
> +    worker->jpeg_state = jpeg_state;
> +    worker->zlib_glz_state = zlib_glz_state;
> +    worker->streaming_video = streaming_video;
>      worker->driver_cap_monitors_config = 0;
>      ring_init(&worker->current_list);
>      image_cache_init(&worker->image_cache);
> @@ -11922,14 +11928,14 @@ RedWorker* red_worker_new(WorkerInitData
> *init_data)
>      worker->watches[0].watch_func_opaque = worker;
>  
>      red_memslot_info_init(&worker->mem_slots,
> -                          init_data->num_memslots_groups,
> -                          init_data->num_memslots,
> -                          init_data->memslot_gen_bits,
> -                          init_data->memslot_id_bits,
> -                          init_data->internal_groupslot_id);
> -
> -    spice_warn_if(init_data->n_surfaces > NUM_SURFACES);
> -    worker->n_surfaces = init_data->n_surfaces;
> +                          init_info.num_memslots_groups,
> +                          init_info.num_memslots,
> +                          init_info.memslot_gen_bits,
> +                          init_info.memslot_id_bits,
> +                          init_info.internal_groupslot_id);
> +
> +    spice_warn_if(init_info.n_surfaces > NUM_SURFACES);
> +    worker->n_surfaces = init_info.n_surfaces;
>  
>      if (!spice_timer_queue_create()) {
>          spice_error("failed to create timer queue");
> diff --git a/server/red_worker.h b/server/red_worker.h
> index c935e0a..c1adca4 100644
> --- a/server/red_worker.h
> +++ b/server/red_worker.h
> @@ -23,42 +23,9 @@
>  #include "red_common.h"
>  #include "red_dispatcher.h"
>  
> -enum {
> -    RED_WORKER_PENDING_WAKEUP,
> -    RED_WORKER_PENDING_OOM,
> -};
> -
> -enum {
> -    RED_RENDERER_INVALID,
> -    RED_RENDERER_SW,
> -    RED_RENDERER_OGL_PBUF,
> -    RED_RENDERER_OGL_PIXMAP,
> -
> -    RED_RENDERER_LAST
> -};
> -
>  typedef struct RedWorker RedWorker;
>  
> -typedef struct WorkerInitData {
> -    struct QXLInstance *qxl;
> -    int id;
> -    uint32_t *pending;
> -    uint32_t num_renderers;
> -    uint32_t renderers[RED_RENDERER_LAST];
> -    SpiceImageCompression image_compression;
> -    spice_wan_compression_t jpeg_state;
> -    spice_wan_compression_t zlib_glz_state;
> -    int streaming_video;
> -    uint32_t num_memslots;
> -    uint32_t num_memslots_groups;
> -    uint8_t memslot_gen_bits;
> -    uint8_t memslot_id_bits;
> -    uint8_t internal_groupslot_id;
> -    uint32_t n_surfaces;
> -    RedDispatcher *red_dispatcher;
> -} WorkerInitData;
> -
> -RedWorker* red_worker_new(WorkerInitData *init_data);
> +RedWorker* red_worker_new(QXLInstance *qxl, RedDispatcher
> *red_dispatcher);
>  bool       red_worker_run(RedWorker *worker);
>  
>  #endif
> diff --git a/server/reds.c b/server/reds.c
> index d53ea66..90d14b5 100644
> --- a/server/reds.c
> +++ b/server/reds.c
> @@ -3364,6 +3364,46 @@ SPICE_GNUC_VISIBLE SpiceServer
> *spice_server_new(void)
>      return reds;
>  }
>  
> +typedef struct RendererInfo {
> +    int id;
> +    const char *name;
> +} RendererInfo;
> +
> +static RendererInfo renderers_info[] = {
> +    {RED_RENDERER_SW, "sw"},
> +#ifdef USE_OPENGL
> +    {RED_RENDERER_OGL_PBUF, "oglpbuf"},
> +    {RED_RENDERER_OGL_PIXMAP, "oglpixmap"},
> +#endif
> +    {RED_RENDERER_INVALID, NULL},
> +};
> +
> +uint32_t renderers[RED_RENDERER_LAST];
> +uint32_t num_renderers = 0;
> +
> +static RendererInfo *find_renderer(const char *name)
> +{
> +    RendererInfo *inf = renderers_info;
> +    while (inf->name) {
> +        if (strcmp(name, inf->name) == 0) {
> +            return inf;
> +        }
> +        inf++;
> +    }
> +    return NULL;
> +}
> +
> +static int red_add_renderer(const char *name)
> +{
> +    RendererInfo *inf;
> +
> +    if (num_renderers == RED_RENDERER_LAST || !(inf =
> find_renderer(name))) {
> +        return FALSE;
> +    }
> +    renderers[num_renderers++] = inf->id;
> +    return TRUE;
> +}
> +
>  SPICE_GNUC_VISIBLE int spice_server_init(SpiceServer *s,
> SpiceCoreInterface *core)
>  {
>      int ret;
> @@ -3371,7 +3411,7 @@ SPICE_GNUC_VISIBLE int
> spice_server_init(SpiceServer *s, SpiceCoreInterface *cor
>      spice_assert(reds == s);
>      ret = do_spice_init(core);
>      if (default_renderer) {
> -        red_dispatcher_add_renderer(default_renderer);
> +        red_add_renderer(default_renderer);
>      }
>      return ret;
>  }
> @@ -3664,7 +3704,7 @@ SPICE_GNUC_VISIBLE int
> spice_server_is_server_mouse(SpiceServer *s)
>  SPICE_GNUC_VISIBLE int spice_server_add_renderer(SpiceServer *s,
> const char *name)
>  {
>      spice_assert(reds == s);
> -    if (!red_dispatcher_add_renderer(name)) {
> +    if (!red_add_renderer(name)) {
>          return -1;
>      }
>      default_renderer = NULL;
> diff --git a/server/reds.h b/server/reds.h
> index a9c2df9..7937d2d 100644
> --- a/server/reds.h
> +++ b/server/reds.h
> @@ -59,7 +59,23 @@ int reds_get_agent_mouse(void); // used by
> inputs_channel
>  int reds_has_vdagent(void); // used by inputs channel
>  void reds_handle_agent_mouse_event(const VDAgentMouseState
> *mouse_state); // used by inputs_channel
>  
> +enum {
> +    RED_RENDERER_INVALID,
> +    RED_RENDERER_SW,
> +    RED_RENDERER_OGL_PBUF,
> +    RED_RENDERER_OGL_PIXMAP,
> +
> +    RED_RENDERER_LAST
> +};
> +
> +extern uint32_t renderers[RED_RENDERER_LAST];
> +extern uint32_t num_renderers;
> +
>  extern struct SpiceCoreInterface *core;
> +extern uint32_t streaming_video;
> +extern SpiceImageCompression image_compression;
> +extern spice_wan_compression_t jpeg_state;
> +extern spice_wan_compression_t zlib_glz_state;
>  
>  // Temporary measures to make splitting reds.c to inputs_channel.c
> easier
>  
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