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Fix for node linking operator, which could insert node link into the list twice and cause deadlock due to incomplete test.

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This commit is contained in:
Lukas Toenne 2012-05-28 14:39:55 +00:00
parent ee854f581a
commit 3091c9d440
1 changed files with 27 additions and 24 deletions
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51
source/blender/editors/space_node/node_edit.c
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@ -2399,6 +2399,7 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
SpaceNode *snode= CTX_wm_space_node(C);
ARegion *ar= CTX_wm_region(C);
bNodeLinkDrag *nldrag= op->customdata;
bNodeTree *ntree = snode->edittree;
bNode *tnode;
bNodeSocket *tsock= NULL;
bNodeLink *link;
@ -2429,12 +2430,12 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
link->tonode = tnode;
link->tosock = tsock;
/* add it to the node tree temporarily */
if (link->prev==NULL && link->next==NULL)
BLI_addtail(&snode->edittree->links, link);
if (BLI_findindex(&ntree->links, link) < 0)
BLI_addtail(&ntree->links, link);
snode->edittree->update |= NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_LINKS;
}
ntreeUpdateTree(snode->edittree);
ntreeUpdateTree(ntree);
}
else {
int do_update = FALSE;
@ -2442,17 +2443,17 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
link = linkdata->data;
if (link->tonode || link->tosock) {
BLI_remlink(&snode->edittree->links, link);
BLI_remlink(&ntree->links, link);
link->prev = link->next = NULL;
link->tonode= NULL;
link->tosock= NULL;
snode->edittree->update |= NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_LINKS;
do_update = TRUE;
}
}
if (do_update) {
ntreeUpdateTree(snode->edittree);
ntreeUpdateTree(ntree);
}
}
}
@ -2472,12 +2473,12 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
link->fromnode = tnode;
link->fromsock = tsock;
/* add it to the node tree temporarily */
if (link->prev==NULL && link->next==NULL)
BLI_addtail(&snode->edittree->links, link);
if (BLI_findindex(&ntree->links, link) < 0)
BLI_addtail(&ntree->links, link);
snode->edittree->update |= NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_LINKS;
}
ntreeUpdateTree(snode->edittree);
ntreeUpdateTree(ntree);
}
else {
int do_update = FALSE;
@ -2485,17 +2486,17 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
link = linkdata->data;
if (link->fromnode || link->fromsock) {
BLI_remlink(&snode->edittree->links, link);
BLI_remlink(&ntree->links, link);
link->prev = link->next = NULL;
link->fromnode= NULL;
link->fromsock= NULL;
snode->edittree->update |= NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_LINKS;
do_update = TRUE;
}
}
if (do_update) {
ntreeUpdateTree(snode->edittree);
ntreeUpdateTree(ntree);
}
}
}
@ -2528,27 +2529,27 @@ static int node_link_modal(bContext *C, wmOperator *op, wmEvent *event)
else if (outside_group_rect(snode) && (link->tonode || link->fromnode)) {
/* automatically add new group socket */
if (link->tonode && link->tosock) {
link->fromsock = node_group_expose_socket(snode->edittree, link->tosock, SOCK_IN);
link->fromsock = node_group_expose_socket(ntree, link->tosock, SOCK_IN);
link->fromnode = NULL;
if (link->prev==NULL && link->next==NULL)
BLI_addtail(&snode->edittree->links, link);
if (BLI_findindex(&ntree->links, link) < 0)
BLI_addtail(&ntree->links, link);
snode->edittree->update |= NTREE_UPDATE_GROUP_IN | NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_GROUP_IN | NTREE_UPDATE_LINKS;
}
else if (link->fromnode && link->fromsock) {
link->tosock = node_group_expose_socket(snode->edittree, link->fromsock, SOCK_OUT);
link->tosock = node_group_expose_socket(ntree, link->fromsock, SOCK_OUT);
link->tonode = NULL;
if (link->prev==NULL && link->next==NULL)
BLI_addtail(&snode->edittree->links, link);
if (BLI_findindex(&ntree->links, link) < 0)
BLI_addtail(&ntree->links, link);
snode->edittree->update |= NTREE_UPDATE_GROUP_OUT | NTREE_UPDATE_LINKS;
ntree->update |= NTREE_UPDATE_GROUP_OUT | NTREE_UPDATE_LINKS;
}
}
else
nodeRemLink(snode->edittree, link);
nodeRemLink(ntree, link);
}
ntreeUpdateTree(snode->edittree);
ntreeUpdateTree(ntree);
snode_notify(C, snode);
snode_dag_update(C, snode);
@ -2589,6 +2590,7 @@ static bNodeLinkDrag *node_link_init(SpaceNode *snode, int detach)
linkdata = MEM_callocN(sizeof(LinkData), "drag link op link data");
linkdata->data = oplink = MEM_callocN(sizeof(bNodeLink), "drag link op link");
*oplink = *link;
oplink->next = oplink->prev = NULL;
BLI_addtail(&nldrag->links, linkdata);
nodeRemLink(snode->edittree, link);
}
@ -2620,6 +2622,7 @@ static bNodeLinkDrag *node_link_init(SpaceNode *snode, int detach)
linkdata = MEM_callocN(sizeof(LinkData), "drag link op link data");
linkdata->data = oplink = MEM_callocN(sizeof(bNodeLink), "drag link op link");
*oplink = *link;
oplink->next = oplink->prev = NULL;
BLI_addtail(&nldrag->links, linkdata);
nodeRemLink(snode->edittree, link);