add uuid

include/util/tuuid.h

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "os.h"
+#include "taoserror.h"
+#include "thash.h"
+
+/**
+ * Generate an non-negative signed 32bit id
+ *+------------+-----+-----------+---------------+
+ *| uid|localIp| PId | timestamp | serial number |
+ *+------------+-----+-----------+---------------+
+ *|  6bit      |6bit |   12bit   |      8bit     |
+ *+------------+-----+-----------+---------------+
+ * @return
+ */
+int32_t tGenIdPI32(void);
+
+/**
+ * Generate an non-negative signed 64bit id
+ *+------------+-----+-----------+---------------+
+ *| uid|localIp| PId | timestamp | serial number |
+ *+------------+-----+-----------+---------------+
+ *| 12bit      |12bit|24bit      |16bit          |
+ *+------------+-----+-----------+---------------+
+ * @return
+ */
+int64_t tGenIdPI64(void);

source/dnode/snode/inc/sndInt.h

@@ -54,18 +54,18 @@ typedef struct SSnode {
 
 typedef struct {
   int64_t streamId;
+  int32_t taskId;
   int32_t IdxInLevel;
   int32_t level;
-} SStreamInfo;
+} SStreamTaskInfo;
 
 typedef struct {
-  SStreamInfo meta;
+  SStreamTaskInfo meta;
   int8_t          status;
   void*           executor;
-  STaosQueue* queue;
   void*           stateStore;
   // storage handle
-} SStreamRunner;
+} SStreamTask;
 
 int32_t sndCreateStream();
 int32_t sndDropStream();

source/dnode/snode/src/snode.c

@@ -14,6 +14,7 @@
  */
 
 #include "sndInt.h"
+#include "tuuid.h"
 
 SSnode *sndOpen(const char *path, const SSnodeOpt *pOption) {
   SSnode *pSnode = calloc(1, sizeof(SSnode));
@@ -32,6 +33,16 @@ int32_t sndProcessMsg(SSnode *pSnode, SRpcMsg *pMsg, SRpcMsg **pRsp) {
 
 void sndDestroy(const char *path) {}
 
+static int32_t sndDeployTask(SSnode *pSnode, SRpcMsg *pMsg) {
+  SStreamTask *task = malloc(sizeof(SStreamTask));
+  if (task == NULL) {
+    return -1;
+  }
+  task->meta.taskId = tGenIdPI32();
+  taosHashPut(pSnode->pMeta->pHash, &task->meta.taskId, sizeof(int32_t), &task, sizeof(void *));
+  return 0;
+}
+
 int32_t sndProcessUMsg(SSnode *pSnode, SRpcMsg *pMsg) {
   // stream deployment
   // stream stop/resume

source/util/src/tuuid.c

+/*
+ * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
+ *
+ * This program is free software: you can use, redistribute, and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3
+ * or later ("AGPL"), as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "tuuid.h"
+
+static int64_t hashId = 0;
+static int32_t SerialNo = 0;
+
+int32_t tGenIdPI32(void) {
+  if (hashId == 0) {
+    char    uid[64];
+    int32_t code = taosGetSystemUUID(uid, tListLen(uid));
+    if (code != TSDB_CODE_SUCCESS) {
+      terrno = TAOS_SYSTEM_ERROR(errno);
+      return -1;
+    } else {
+      hashId = MurmurHash3_32(uid, strlen(uid));
+    }
+  }
+
+  int64_t  ts = taosGetTimestampMs();
+  uint64_t pid = taosGetPId();
+  int32_t  val = atomic_add_fetch_32(&SerialNo, 1);
+
+  int32_t id = ((hashId & 0x1F) << 26) | ((pid & 0x3F) << 20) | ((ts & 0xFFF) << 8) | (val & 0xFF);
+  return id;
+}
+
+int64_t tGenIdPI64(void) {
+  if (hashId == 0) {
+    char    uid[64];
+    int32_t code = taosGetSystemUUID(uid, tListLen(uid));
+    if (code != TSDB_CODE_SUCCESS) {
+      terrno = TAOS_SYSTEM_ERROR(errno);
+      return -1;
+    } else {
+      hashId = MurmurHash3_32(uid, strlen(uid));
+    }
+  }
+
+  int64_t  ts = taosGetTimestampMs();
+  uint64_t pid = taosGetPId();
+  int32_t  val = atomic_add_fetch_32(&SerialNo, 1);
+
+  int64_t id = ((hashId & 0x07FF) << 52) | ((pid & 0x0FFF) << 40) | ((ts & 0xFFFFFF) << 16) | (val & 0xFFFF);
+  return id;
+}