Merge branch 'dev' of github.com:cloudwu/skynet into dev

lualib/mongo.lua

@@ -227,6 +227,10 @@ function mongo_collection:insert(doc)
 	sock:request(pack)
 end
 
+function mongo_collection:safe_insert(doc)
+	return self.database:runCommand("insert", self.name, "documents", {bson_encode(doc)})	
+end
+
 function mongo_collection:batch_insert(docs)		
 	for	i=1,#docs do
 		if docs[i]._id == nil then
@@ -276,6 +280,48 @@ function mongo_collection:find(query, selector)
 	} ,	cursor_meta)
 end
 
+-- collection:createIndex({username = 1}, {unique = true})
+function mongo_collection:createIndex(keys, option)
+	local name
+	for k, v in pairs(keys) do
+		assert(v == 1)
+		name = (name == nil) and k or (name .. "_" .. k)
+	end
+
+	local doc = {};
+	doc.name = name
+	doc.key = keys
+	for k, v in pairs(option) do
+		if v then
+			doc[k] = true
+		end
+	end
+	return self.database:runCommand("createIndexes", self.name, "indexes", {doc})
+end
+
+mongo_collection.ensureIndex = mongo_collection.createIndex;
+
+-- collection:findAndModify({query = {name = "userid"}, update = {["$inc"] = {nextid = 1}}, })
+-- keys, value type
+-- query, table	
+-- sort, table
+-- remove, bool 
+-- update, table 
+-- new, bool 
+-- fields, bool 
+-- upsert, boolean 
+function mongo_collection:findAndModify(doc)
+	assert(doc.query)
+	assert(doc.update or doc.remove)
+
+	local cmd = {"findAndModify", self.name};
+	for k, v in pairs(doc) do
+		table.insert(cmd, k)
+		table.insert(cmd, v)
+	end
+	return self.database:runCommand(unpack(cmd))
+end
+
 function mongo_cursor:hasNext()
 	if self.__ptr == nil then
 		if self.__document == nil then

skynet-src/skynet_mq.c

@@ -32,12 +32,9 @@ struct message_queue {
 };
 
 struct global_queue {
-	uint32_t head;
+	struct message_queue *head;
-	uint32_t tail;
+	struct message_queue *tail;
-	struct message_queue ** queue;
+	int lock;
-	// We use a separated flag array to ensure the mq is pushed.
-	// See the comments below.
-	struct message_queue *list;
 };
 
 static struct global_queue *Q = NULL;
@@ -51,57 +48,32 @@ void
 skynet_globalmq_push(struct message_queue * queue) {
 	struct global_queue *q= Q;
 
-	uint32_t tail = GP(__sync_fetch_and_add(&q->tail,1));
+	LOCK(q)
-
+	assert(queue->next == NULL);
-	// only one thread can set the slot (change q->queue[tail] from NULL to queue)
+	if(q->tail) {
-	if (!__sync_bool_compare_and_swap(&q->queue[tail], NULL, queue)) {
+		q->tail->next = queue;
-		// The queue may full seldom, save queue in list
+		q->tail = queue;
-		assert(queue->next == NULL);
+	} else {
-		struct message_queue * last;
+		q->head = q->tail = queue;
-		do {
-			last = q->list;
-			queue->next = last;
-		} while(!__sync_bool_compare_and_swap(&q->list, last, queue));
-
-		return;
 	}
+	UNLOCK(q)
 }
 
 struct message_queue * 
 skynet_globalmq_pop() {
 	struct global_queue *q = Q;
-	uint32_t head =  q->head;
 
-	if (head == q->tail) {
+	LOCK(q)
-		// The queue is empty.
+	struct message_queue *mq = q->head;
-		return NULL;
+	if(mq) {
-	}
+		q->head = mq->next;
-
+		if(q->head == NULL) {
-	uint32_t head_ptr = GP(head);
+			assert(mq == q->tail);
-
+			q->tail = NULL;
-	struct message_queue * list = q->list;
-	if (list) {
-		// If q->list is not empty, try to load it back to the queue
-		struct message_queue *newhead = list->next;
-		if (__sync_bool_compare_and_swap(&q->list, list, newhead)) {
-			// try load list only once, if success , push it back to the queue.
-			list->next = NULL;
-			skynet_globalmq_push(list);
 		}
+		mq->next = NULL;
 	}
-
+	UNLOCK(q)
-	struct message_queue * mq = q->queue[head_ptr];
-	if (mq == NULL) {
-		// globalmq push not complete
-		return NULL;
-	}
-	if (!__sync_bool_compare_and_swap(&q->head, head, head+1)) {
-		return NULL;
-	}
-	// only one thread can get the slot (change q->queue[head_ptr] to NULL)
-	if (!__sync_bool_compare_and_swap(&q->queue[head_ptr], mq, NULL)) {
-		return NULL;
-	}
 
 	return mq;
 }
@@ -243,8 +215,6 @@ void
 skynet_mq_init() {
 	struct global_queue *q = skynet_malloc(sizeof(*q));
 	memset(q,0,sizeof(*q));
-	q->queue = skynet_malloc(MAX_GLOBAL_MQ * sizeof(struct message_queue *));
-	memset(q->queue, 0, sizeof(struct message_queue *) * MAX_GLOBAL_MQ);
 	Q=q;
 }
 

test/testdeadloop.lua

@@ -0,0 +1,10 @@
+local skynet = require "skynet"
+local function dead_loop()
+    while true do
+        skynet.sleep(0)
+    end
+end
+
+skynet.start(function()
+    skynet.fork(dead_loop)
+end)