tdef.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/>.
 */

#ifndef _TD_UTIL_DEF_H_
#define _TD_UTIL_DEF_H_

#include "os.h"

#ifdef __cplusplus
extern "C" {
#endif

#define TSDB__packed

#define TSKEY             int64_t
#define TSKEY_MIN         INT64_MIN
#define TSKEY_MAX         (INT64_MAX - 1)
#define TSKEY_INITIAL_VAL TSKEY_MIN

// Bytes for each type.
extern const int32_t TYPE_BYTES[15];

// TODO: replace and remove code below
#define CHAR_BYTES      sizeof(char)
#define SHORT_BYTES     sizeof(int16_t)
#define INT_BYTES       sizeof(int32_t)
#define LONG_BYTES      sizeof(int64_t)
#define FLOAT_BYTES     sizeof(float)
#define DOUBLE_BYTES    sizeof(double)
#define POINTER_BYTES   sizeof(void *)  // 8 by default  assert(sizeof(ptrdiff_t) == sizseof(void*)
#define TSDB_KEYSIZE    sizeof(TSKEY)
#define TSDB_NCHAR_SIZE sizeof(TdUcs4)

// NULL definition
#define TSDB_DATA_BOOL_NULL      0x02
#define TSDB_DATA_TINYINT_NULL   0x80
#define TSDB_DATA_SMALLINT_NULL  0x8000
#define TSDB_DATA_INT_NULL       0x80000000L
#define TSDB_DATA_BIGINT_NULL    0x8000000000000000L
#define TSDB_DATA_TIMESTAMP_NULL TSDB_DATA_BIGINT_NULL

#define TSDB_DATA_FLOAT_NULL  0x7FF00000           // it is an NAN
#define TSDB_DATA_DOUBLE_NULL 0x7FFFFF0000000000L  // an NAN
#define TSDB_DATA_NCHAR_NULL  0xFFFFFFFF
#define TSDB_DATA_BINARY_NULL 0xFF

#define TSDB_DATA_UTINYINT_NULL  0xFF
#define TSDB_DATA_USMALLINT_NULL 0xFFFF
#define TSDB_DATA_UINT_NULL      0xFFFFFFFF
#define TSDB_DATA_UBIGINT_NULL   0xFFFFFFFFFFFFFFFFL

#define TSDB_DATA_NULL_STR   "NULL"
#define TSDB_DATA_NULL_STR_L "null"

#define TSDB_NETTEST_USER "nettestinternal"
#define TSDB_DEFAULT_USER "root"
#ifdef _TD_POWER_
#define TSDB_DEFAULT_PASS "powerdb"
#elif (_TD_TQ_ == true)
#define TSDB_DEFAULT_PASS "tqueue"
#elif (_TD_PRO_ == true)
#define TSDB_DEFAULT_PASS "prodb"
#else
#define TSDB_DEFAULT_PASS "taosdata"
#endif

#define SHELL_MAX_PASSWORD_LEN 20

#define TSDB_TRUE  1
#define TSDB_FALSE 0
#define TSDB_OK    0
#define TSDB_ERR   -1

#define TS_PATH_DELIMITER "."
#define TS_ESCAPE_CHAR    '`'

#define TSDB_TIME_PRECISION_MILLI 0
#define TSDB_TIME_PRECISION_MICRO 1
#define TSDB_TIME_PRECISION_NANO  2

#define TSDB_TIME_PRECISION_MILLI_STR "ms"
#define TSDB_TIME_PRECISION_MICRO_STR "us"
#define TSDB_TIME_PRECISION_NANO_STR  "ns"

#define TSDB_INFORMATION_SCHEMA_DB            "information_schema"
#define TSDB_INS_TABLE_DNODES                 "dnodes"
#define TSDB_INS_TABLE_MNODES                 "mnodes"
#define TSDB_INS_TABLE_MODULES                "modules"
#define TSDB_INS_TABLE_QNODES                 "qnodes"
#define TSDB_INS_TABLE_BNODES                 "bnodes"
#define TSDB_INS_TABLE_CLUSTER                "cluster"
#define TSDB_INS_TABLE_USER_DATABASES         "user_databases"
#define TSDB_INS_TABLE_USER_FUNCTIONS         "user_functions"
#define TSDB_INS_TABLE_USER_INDEXES           "user_indexes"
#define TSDB_INS_TABLE_USER_STABLES           "user_stables"
#define TSDB_INS_TABLE_USER_STREAMS           "user_streams"
#define TSDB_INS_TABLE_USER_TABLES            "user_tables"
#define TSDB_INS_TABLE_USER_TABLE_DISTRIBUTED "user_table_distributed"
#define TSDB_INS_TABLE_USER_USERS             "user_users"
#define TSDB_INS_TABLE_VGROUPS                "vgroups"
#define TSDB_INS_TABLE_BNODES                 "bnodes"
#define TSDB_INS_TABLE_SNODES                 "snodes"

#define TSDB_INDEX_TYPE_SMA      "SMA"
#define TSDB_INDEX_TYPE_FULLTEXT "FULLTEXT"

#define TSDB_INS_USER_STABLES_DBNAME_COLID    2

#define TSDB_TICK_PER_SECOND(precision)                      \
  ((int64_t)((precision) == TSDB_TIME_PRECISION_MILLI ? 1e3L \
                                                      : ((precision) == TSDB_TIME_PRECISION_MICRO ? 1e6L : 1e9L)))

#define T_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
#define T_APPEND_MEMBER(dst, ptr, type, member)                                     \
  do {                                                                              \
    memcpy((void *)(dst), (void *)(&((ptr)->member)), T_MEMBER_SIZE(type, member)); \
    dst = (void *)((char *)(dst) + T_MEMBER_SIZE(type, member));                    \
  } while (0)
#define T_READ_MEMBER(src, type, target)          \
  do {                                            \
    (target) = *(type *)(src);                    \
    (src) = (void *)((char *)src + sizeof(type)); \
  } while (0)

typedef enum EOperatorType {
  // binary arithmetic operator
  OP_TYPE_ADD = 1,
  OP_TYPE_SUB,
  OP_TYPE_MULTI,
  OP_TYPE_DIV,
  OP_TYPE_MOD,
  // unary arithmetic operator
  OP_TYPE_MINUS,

  // bit operator
  OP_TYPE_BIT_AND,
  OP_TYPE_BIT_OR,

  // binary comparison operator
  OP_TYPE_GREATER_THAN,
  OP_TYPE_GREATER_EQUAL,
  OP_TYPE_LOWER_THAN,
  OP_TYPE_LOWER_EQUAL,
  OP_TYPE_EQUAL,
  OP_TYPE_NOT_EQUAL,
  OP_TYPE_IN,
  OP_TYPE_NOT_IN,
  OP_TYPE_LIKE,
  OP_TYPE_NOT_LIKE,
  OP_TYPE_MATCH,
  OP_TYPE_NMATCH,
  // unary comparison operator
  OP_TYPE_IS_NULL,
  OP_TYPE_IS_NOT_NULL,
  OP_TYPE_IS_TRUE,
  OP_TYPE_IS_FALSE,
  OP_TYPE_IS_UNKNOWN,
  OP_TYPE_IS_NOT_TRUE,
  OP_TYPE_IS_NOT_FALSE,
  OP_TYPE_IS_NOT_UNKNOWN,

  // json operator
  OP_TYPE_JSON_GET_VALUE,
  OP_TYPE_JSON_CONTAINS
} EOperatorType;

typedef enum ELogicConditionType {
  LOGIC_COND_TYPE_AND,
  LOGIC_COND_TYPE_OR,
  LOGIC_COND_TYPE_NOT,
} ELogicConditionType;

#define FUNCTION_CEIL  4500
#define FUNCTION_FLOOR 4501
#define FUNCTION_ABS   4502
#define FUNCTION_ROUND 4503

#define FUNCTION_LENGTH 4800
#define FUNCTION_CONCAT 4801
#define FUNCTION_LTRIM  4802
#define FUNCTION_RTRIM  4803

#define TSDB_NAME_DELIMITER_LEN 1

#define TSDB_UNI_LEN  24
#define TSDB_USER_LEN TSDB_UNI_LEN

// ACCOUNT is a 32 bit positive integer
// this is the length of its string representation, including the terminator zero
#define TSDB_ACCT_ID_LEN 11

#define TSDB_MAX_COLUMNS 4096
#define TSDB_MIN_COLUMNS 2  // PRIMARY COLUMN(timestamp) + other columns

#define TSDB_NODE_NAME_LEN  64
#define TSDB_TABLE_NAME_LEN 193  // it is a null-terminated string
#define TSDB_TOPIC_NAME_LEN 193  // it is a null-terminated string
#define TSDB_CGROUP_LEN     193  // it is a null-terminated string
#define TSDB_DB_NAME_LEN    65
#define TSDB_DB_FNAME_LEN   (TSDB_ACCT_ID_LEN + TSDB_DB_NAME_LEN + TSDB_NAME_DELIMITER_LEN)

#define TSDB_FUNC_NAME_LEN       65
#define TSDB_FUNC_COMMENT_LEN    4096
#define TSDB_FUNC_CODE_LEN       (65535 - 512)
#define TSDB_FUNC_BUF_SIZE       512
#define TSDB_FUNC_TYPE_SCALAR    1
#define TSDB_FUNC_TYPE_AGGREGATE 2
#define TSDB_FUNC_MAX_RETRIEVE   1024

#define TSDB_INDEX_NAME_LEN      65  // 64 + 1 '\0'
#define TSDB_INDEX_TYPE_LEN      10
#define TSDB_INDEX_EXTS_LEN      256
#define TSDB_INDEX_FNAME_LEN     (TSDB_DB_FNAME_LEN + TSDB_INDEX_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
#define TSDB_TYPE_STR_MAX_LEN    32
#define TSDB_TABLE_FNAME_LEN     (TSDB_DB_FNAME_LEN + TSDB_TABLE_NAME_LEN + TSDB_NAME_DELIMITER_LEN)
#define TSDB_TOPIC_FNAME_LEN     TSDB_TABLE_FNAME_LEN
#define TSDB_STREAM_FNAME_LEN    TSDB_TABLE_FNAME_LEN
#define TSDB_SUBSCRIBE_KEY_LEN   (TSDB_CGROUP_LEN + TSDB_TOPIC_FNAME_LEN + 2)
#define TSDB_PARTITION_KEY_LEN   (TSDB_SUBSCRIBE_KEY_LEN + 20)
#define TSDB_COL_NAME_LEN        65
#define TSDB_MAX_SAVED_SQL_LEN   TSDB_MAX_COLUMNS * 64
#define TSDB_MAX_SQL_LEN         TSDB_PAYLOAD_SIZE
#define TSDB_MAX_SQL_SHOW_LEN    1024
#define TSDB_MAX_ALLOWED_SQL_LEN (1 * 1024 * 1024u)  // sql length should be less than 1mb

#define TSDB_APP_NAME_LEN    TSDB_UNI_LEN
#define TSDB_STB_COMMENT_LEN 1024

/**
 *  In some scenarios uint16_t (0~65535) is used to store the row len.
 *  - Firstly, we use 65531(65535 - 4), as the SDataRow/SKVRow contains 4 bits header.
 *  - Secondly, if all cols are VarDataT type except primary key, we need 4 bits to store the offset, thus
 *    the final value is 65531-(4096-1)*4 = 49151.
 */
#define TSDB_MAX_BYTES_PER_ROW  49151
#define TSDB_MAX_TAGS_LEN       16384
#define TSDB_MAX_TAGS           128
#define TSDB_MAX_TAG_CONDITIONS 1024

#define TSDB_AUTH_LEN          16
#define TSDB_PASSWORD_LEN      32
#define TSDB_USET_PASSWORD_LEN 129
#define TSDB_VERSION_LEN       12
#define TSDB_LABEL_LEN         8

#define TSDB_CLUSTER_ID_LEN     40
#define TSDB_FQDN_LEN           128
#define TSDB_EP_LEN             (TSDB_FQDN_LEN + 6)
#define TSDB_IPv4ADDR_LEN       16
#define TSDB_FILENAME_LEN       128
#define TSDB_SHOW_SQL_LEN       512
#define TSDB_SHOW_SUBQUERY_LEN  1000
#define TSDB_SLOW_QUERY_SQL_LEN 512

#define TSDB_TRANS_STAGE_LEN 12
#define TSDB_TRANS_TYPE_LEN  16
#define TSDB_TRANS_ERROR_LEN 64

#define TSDB_STEP_NAME_LEN 32
#define TSDB_STEP_DESC_LEN 128

#define TSDB_ERROR_MSG_LEN    1024
#define TSDB_DNODE_CONFIG_LEN 128
#define TSDB_DNODE_VALUE_LEN  256

#define TSDB_MQTT_HOSTNAME_LEN  64
#define TSDB_MQTT_PORT_LEN      8
#define TSDB_MQTT_USER_LEN      24
#define TSDB_MQTT_PASS_LEN      24
#define TSDB_MQTT_TOPIC_LEN     64
#define TSDB_MQTT_CLIENT_ID_LEN 32

#define TSDB_DB_TYPE_DEFAULT 0
#define TSDB_DB_TYPE_TOPIC   1

#define TSDB_DEFAULT_PKT_SIZE 65480  // same as RPC_MAX_UDP_SIZE

#define TSDB_PAYLOAD_SIZE         TSDB_DEFAULT_PKT_SIZE
#define TSDB_DEFAULT_PAYLOAD_SIZE 5120  // default payload size, greater than PATH_MAX value
#define TSDB_EXTRA_PAYLOAD_SIZE   128   // extra bytes for auth
#define TSDB_CQ_SQL_SIZE          1024
#define TSDB_MIN_VNODES           16
#define TSDB_MAX_VNODES           512
#define TSDB_MIN_VNODES_PER_DB    1
#define TSDB_MAX_VNODES_PER_DB    4096
#define TSDB_DEFAULT_VN_PER_DB    2

#define TSDB_DNODE_ROLE_ANY   0
#define TSDB_DNODE_ROLE_MGMT  1
#define TSDB_DNODE_ROLE_VNODE 2

#define TSDB_MAX_REPLICA 5

#define TSDB_TBNAME_COLUMN_INDEX (-1)
#define TSDB_UD_COLUMN_INDEX     (-1000)
#define TSDB_RES_COL_ID          (-5000)

#define TSDB_MULTI_TABLEMETA_MAX_NUM 100000  // maximum batch size allowed to load table meta

#define TSDB_MIN_CACHE_BLOCK_SIZE     1
#define TSDB_MAX_CACHE_BLOCK_SIZE     128  // 128MB for each vnode
#define TSDB_DEFAULT_CACHE_BLOCK_SIZE 16

#define TSDB_MIN_TOTAL_BLOCKS     3
#define TSDB_MAX_TOTAL_BLOCKS     10000
#define TSDB_DEFAULT_TOTAL_BLOCKS 6

#define TSDB_MIN_DAYS_PER_FILE     60    // unit minute
#define TSDB_MAX_DAYS_PER_FILE     (3650 * 1440)
#define TSDB_DEFAULT_DAYS_PER_FILE (10 * 1440)

#define TSDB_MIN_KEEP     (1 * 1440)       // data in db to be reserved. unit minute
#define TSDB_MAX_KEEP     (365000 * 1440) // data in db to be reserved.
#define TSDB_DEFAULT_KEEP (3650 * 1440)    // ten years

#define TSDB_MIN_MIN_ROW_FBLOCK     10
#define TSDB_MAX_MIN_ROW_FBLOCK     1000
#define TSDB_DEFAULT_MIN_ROW_FBLOCK 100

#define TSDB_MIN_MAX_ROW_FBLOCK     200
#define TSDB_MAX_MAX_ROW_FBLOCK     10000
#define TSDB_DEFAULT_MAX_ROW_FBLOCK 4096

#define TSDB_MIN_COMMIT_TIME     30
#define TSDB_MAX_COMMIT_TIME     40960
#define TSDB_DEFAULT_COMMIT_TIME 3600

#define TSDB_MIN_FSYNC_PERIOD     0
#define TSDB_MAX_FSYNC_PERIOD     180000  // millisecond
#define TSDB_DEFAULT_FSYNC_PERIOD 3000    // three second

#define TSDB_MIN_WAL_LEVEL     1
#define TSDB_MAX_WAL_LEVEL     2
#define TSDB_DEFAULT_WAL_LEVEL 1

#define TSDB_MIN_PRECISION     TSDB_TIME_PRECISION_MILLI
#define TSDB_MAX_PRECISION     TSDB_TIME_PRECISION_NANO
#define TSDB_DEFAULT_PRECISION TSDB_TIME_PRECISION_MILLI

#define TSDB_MIN_COMP_LEVEL     0
#define TSDB_MAX_COMP_LEVEL     2
#define TSDB_DEFAULT_COMP_LEVEL 2

#define TSDB_MIN_DB_REPLICA_OPTION     1
#define TSDB_MAX_DB_REPLICA_OPTION     3
#define TSDB_DEFAULT_DB_REPLICA_OPTION 1

#define TSDB_MIN_DB_QUORUM_OPTION     1
#define TSDB_MAX_DB_QUORUM_OPTION     2
#define TSDB_DEFAULT_DB_QUORUM_OPTION 1

#define TSDB_MIN_DB_TTL_OPTION     1
#define TSDB_DEFAULT_DB_TTL_OPTION 0

#define TSDB_MIN_DB_SINGLE_STABLE_OPTION     0
#define TSDB_MAX_DB_SINGLE_STABLE_OPTION     1
#define TSDB_DEFAULT_DB_SINGLE_STABLE_OPTION 0

#define TSDB_MIN_DB_STREAM_MODE_OPTION     0
#define TSDB_MAX_DB_STREAM_MODE_OPTION     1
#define TSDB_DEFAULT_DB_STREAM_MODE_OPTION 0

#define TSDB_MAX_JOIN_TABLE_NUM 10
#define TSDB_MAX_UNION_CLAUSE   5

#define TSDB_MIN_DB_UPDATE            0
#define TSDB_MAX_DB_UPDATE            2
#define TSDB_DEFAULT_DB_UPDATE_OPTION 0

#define TSDB_MIN_DB_CACHE_LAST_ROW  0
#define TSDB_MAX_DB_CACHE_LAST_ROW  3
#define TSDB_DEFAULT_CACHE_LAST_ROW 0

#define TSDB_MIN_DB_STREAM_MODE     0
#define TSDB_MAX_DB_STREAM_MODE     1
#define TSDB_DEFAULT_DB_STREAM_MODE 0

#define TSDB_MIN_DB_FILE_FACTOR     0
#define TSDB_MAX_DB_FILE_FACTOR     1
#define TSDB_DEFAULT_DB_FILE_FACTOR 0.1

#define TSDB_MIN_DB_DELAY     1
#define TSDB_MAX_DB_DELAY     10
#define TSDB_DEFAULT_DB_DELAY 2

#define TSDB_DEFAULT_EXPLAIN_VERBOSE false

#define TSDB_MIN_EXPLAIN_RATIO       0
#define TSDB_MAX_EXPLAIN_RATIO       1
#define TSDB_DEFAULT_EXPLAIN_RATIO   0.001

#define TSDB_EXPLAIN_RESULT_ROW_SIZE 1024
#define TSDB_EXPLAIN_RESULT_COLUMN_NAME "QUERY PLAN"

#define TSDB_MAX_JOIN_TABLE_NUM 10
#define TSDB_MAX_UNION_CLAUSE   5

#define TSDB_MAX_FIELD_LEN             16384
#define TSDB_MAX_BINARY_LEN            (TSDB_MAX_FIELD_LEN - TSDB_KEYSIZE)  // keep 16384
#define TSDB_MAX_NCHAR_LEN             (TSDB_MAX_FIELD_LEN - TSDB_KEYSIZE)  // keep 16384
#define PRIMARYKEY_TIMESTAMP_COL_ID    1
#define COL_REACH_END(colId, maxColId) ((colId) > (maxColId))

#define TSDB_MAX_RPC_THREADS 5

#define TSDB_QUERY_TYPE_NON_TYPE      0x00u  // none type
#define TSDB_QUERY_TYPE_FREE_RESOURCE 0x01u  // free qhandle at vnode

#define TSDB_META_COMPACT_RATIO 0  // disable tsdb meta compact by default

/*
 * 1. ordinary sub query for select * from super_table
 * 2. all sqlobj generated by createSubqueryObj with this flag
 */
#define TSDB_QUERY_TYPE_SUBQUERY        0x02u
#define TSDB_QUERY_TYPE_STABLE_SUBQUERY 0x04u  // two-stage subquery for super table

#define TSDB_QUERY_TYPE_TABLE_QUERY      0x08u  // query ordinary table; below only apply to client side
#define TSDB_QUERY_TYPE_STABLE_QUERY     0x10u  // query on super table
#define TSDB_QUERY_TYPE_JOIN_QUERY       0x20u  // join query
#define TSDB_QUERY_TYPE_PROJECTION_QUERY 0x40u  // select *,columns... query
#define TSDB_QUERY_TYPE_JOIN_SEC_STAGE   0x80u  // join sub query at the second stage

#define TSDB_QUERY_TYPE_TAG_FILTER_QUERY 0x400u
#define TSDB_QUERY_TYPE_INSERT           0x100u  // insert type
#define TSDB_QUERY_TYPE_MULTITABLE_QUERY 0x200u
#define TSDB_QUERY_TYPE_FILE_INSERT      0x400u   // insert data from file
#define TSDB_QUERY_TYPE_STMT_INSERT      0x800u   // stmt insert type
#define TSDB_QUERY_TYPE_NEST_SUBQUERY    0x1000u  // nested sub query

#define TSDB_QUERY_HAS_TYPE(x, _type)   (((x) & (_type)) != 0)
#define TSDB_QUERY_SET_TYPE(x, _type)   ((x) |= (_type))
#define TSDB_QUERY_CLEAR_TYPE(x, _type) ((x) &= (~_type))
#define TSDB_QUERY_RESET_TYPE(x)        ((x) = TSDB_QUERY_TYPE_NON_TYPE)

#define TSDB_ORDER_ASC  1
#define TSDB_ORDER_DESC 2

#define TSDB_DEFAULT_CLUSTER_HASH_SIZE  1
#define TSDB_DEFAULT_MNODES_HASH_SIZE   5
#define TSDB_DEFAULT_DNODES_HASH_SIZE   10
#define TSDB_DEFAULT_ACCOUNTS_HASH_SIZE 10
#define TSDB_DEFAULT_USERS_HASH_SIZE    20
#define TSDB_DEFAULT_DBS_HASH_SIZE      100
#define TSDB_DEFAULT_VGROUPS_HASH_SIZE  100
#define TSDB_DEFAULT_STABLES_HASH_SIZE  100
#define TSDB_DEFAULT_CTABLES_HASH_SIZE  20000

#define TSDB_MAX_WAL_SIZE (1024 * 1024 * 3)

#define TSDB_ARB_DUMMY_TIME 4765104000000  // 2121-01-01 00:00:00.000, :P

#define TFS_MAX_TIERS          3
#define TFS_MAX_DISKS_PER_TIER 16
#define TFS_MAX_DISKS          (TFS_MAX_TIERS * TFS_MAX_DISKS_PER_TIER)
#define TFS_MIN_LEVEL          0
#define TFS_MAX_LEVEL          (TFS_MAX_TIERS - 1)
#define TFS_PRIMARY_LEVEL      0
#define TFS_PRIMARY_ID         0
#define TFS_MIN_DISK_FREE_SIZE 50 * 1024 * 1024

enum { TRANS_STAT_INIT = 0, TRANS_STAT_EXECUTING, TRANS_STAT_EXECUTED, TRANS_STAT_ROLLBACKING, TRANS_STAT_ROLLBACKED };
enum { TRANS_OPER_INIT = 0, TRANS_OPER_EXECUTE, TRANS_OPER_ROLLBACK };

typedef struct {
  char    dir[TSDB_FILENAME_LEN];
  int32_t level;
  int32_t primary;
} SDiskCfg;

#define TMQ_SEPARATOR ':'

enum {
  SND_WORKER_TYPE__SHARED = 1,
  SND_WORKER_TYPE__UNIQUE,
};

#define MNODE_HANDLE -1
#define QNODE_HANDLE 1
#define DEFAULT_HANDLE 0

#define MAX_NUM_STR_SIZE 40


#ifdef __cplusplus
}
#endif

#endif