forked from enlightenment/efl
Add support for a request to depend on another
SVN revision: 73058
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8fc3cd2a34
commit
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@ -288,7 +288,7 @@ void cserve2_cache_stats_get(Client *client, unsigned int rid);
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void cserve2_cache_font_debug(Client *client, unsigned int rid);
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Font_Request *cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Font_Request_Funcs *funcs, void *data);
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Font_Request *cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Font_Request *dep, Font_Request_Funcs *funcs, void *data);
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void cserve2_request_waiter_add(Font_Request *req, unsigned int rid, Client *client);
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void cserve2_request_cancel(Font_Request *req, Client *client, Error_Type err);
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void cserve2_request_cancel_all(Font_Request *req, Error_Type err);
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@ -2460,7 +2460,7 @@ cserve2_cache_font_load(Client *client, const char *source, unsigned int sourcel
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fs->references++;
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DBG("adding FONT_LOAD '%s' request.", fs->name);
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fe->request = cserve2_request_add(CSERVE2_REQ_FONT_LOAD, rid,
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client, &_font_load_funcs, fe);
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client, NULL, &_font_load_funcs, fe);
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eina_hash_direct_add(font_entries, fe, fe);
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@ -2518,7 +2518,7 @@ cserve2_cache_font_glyphs_load(Client *client, const char *source, unsigned int
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else
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{
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cserve2_request_add(CSERVE2_REQ_FONT_GLYPHS_LOAD, rid,
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client, &_glyphs_load_funcs, req);
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client, req->fe->request, &_glyphs_load_funcs, req);
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}
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return 0;
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}
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@ -68,6 +68,9 @@ struct _Font_Request
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Eina_List *waiters;
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Eina_Bool processing;
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Font_Request_Funcs *funcs;
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Font_Request *dependency;
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Eina_List *dependents; /* list of requests that depend on this one finishing */
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Eina_Bool locked : 1; /* locked waiting for a dependency request to finish */
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};
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struct _Waiter
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@ -105,7 +108,7 @@ _request_waiter_add(Font_Request *req, Client *client, unsigned int rid)
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}
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Font_Request *
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cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Font_Request_Funcs *funcs __UNUSED__, void *data)
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cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Font_Request *dep, Font_Request_Funcs *funcs, void *data)
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{
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Font_Request *req, *r;
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@ -138,7 +141,7 @@ cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Fo
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if (!req)
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{
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DBG("Add request for rid: %d", rid);
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req = malloc(sizeof(*req));
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req = calloc(1, sizeof(*req));
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req->type = type;
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req->data = data;
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req->waiters = NULL;
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@ -148,6 +151,13 @@ cserve2_request_add(Font_Request_Type type, unsigned int rid, Client *client, Fo
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EINA_INLIST_GET(req));
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}
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if (dep && !req->dependency)
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{
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req->locked = EINA_TRUE;
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dep->dependents = eina_list_append(dep->dependents, req);
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req->dependency = dep;
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}
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_request_waiter_add(req, client, rid);
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_cserve2_requests_process();
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@ -161,6 +171,21 @@ cserve2_request_waiter_add(Font_Request *req, unsigned int rid, Client *client)
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_request_waiter_add(req, client, rid);
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}
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static void
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_request_dependents_cancel(Font_Request *req, Error_Type err)
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{
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Font_Request *dep;
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EINA_LIST_FREE(req->dependents, dep)
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{
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dep->locked = EINA_FALSE;
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dep->dependency = NULL;
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/* Maybe we need a better way to inform the creator of the request
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* that it was cancelled because its dependency failed? */
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cserve2_request_cancel_all(dep, err);
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}
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}
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void
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cserve2_request_cancel(Font_Request *req, Client *client, Error_Type err)
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{
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@ -180,6 +205,12 @@ cserve2_request_cancel(Font_Request *req, Client *client, Error_Type err)
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}
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}
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if (req->dependency)
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req->dependency->dependents = eina_list_remove(
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req->dependency->dependents, req);
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_request_dependents_cancel(req, err);
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// TODO: When we have speculative preload, there may be no waiters,
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// so we need a flag or something else to make things still load.
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if ((!req->waiters) && (!req->processing))
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@ -210,9 +241,15 @@ cserve2_request_cancel_all(Font_Request *req, Error_Type err)
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free(w);
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}
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_request_dependents_cancel(req, err);
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if (req->processing)
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return;
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if (req->dependency)
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req->dependency->dependents = eina_list_remove(
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req->dependency->dependents, req);
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requests[req->type].waiting = eina_inlist_remove(
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requests[req->type].waiting, EINA_INLIST_GET(req));
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req->funcs->msg_free(req->msg, req->data);
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@ -247,6 +284,9 @@ _cserve2_request_failed(Font_Request *req, Error_Type type)
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req->funcs->msg_free(req->msg, req->data);
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requests[req->type].processing = eina_inlist_remove(
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requests[req->type].processing, EINA_INLIST_GET(req));
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_request_dependents_cancel(req, type);
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free(req);
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}
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@ -254,7 +294,7 @@ static void
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_slave_read_cb(Slave *s __UNUSED__, Slave_Command cmd, void *msg, void *data)
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{
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Slave_Worker *sw = data;
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Font_Request *req = sw->data;
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Font_Request *dep, *req = sw->data;
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Eina_List **working, **idle;
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Waiter *w;
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@ -276,6 +316,13 @@ _slave_read_cb(Slave *s __UNUSED__, Slave_Command cmd, void *msg, void *data)
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free(msg);
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requests[req->type].processing = eina_inlist_remove(
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requests[req->type].processing, EINA_INLIST_GET(req));
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EINA_LIST_FREE(req->dependents, dep)
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{
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dep->locked = EINA_FALSE;
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dep->dependency = NULL;
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}
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free(req);
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sw->data = NULL;
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@ -416,6 +463,9 @@ _cserve2_requests_process(void)
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Font_Request *req = EINA_INLIST_CONTAINER_GET(
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requests[rtype].waiting, Font_Request);
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if (req->locked)
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continue;
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requests[rtype].waiting = eina_inlist_remove(
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requests[rtype].waiting, requests[rtype].waiting);
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requests[rtype].processing = eina_inlist_append(
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