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96 lines
2.2 KiB
96 lines
2.2 KiB
package dao |
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import ( |
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"context" |
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"fmt" |
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"go-common/library/cache/redis" |
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"go-common/library/log" |
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) |
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const ( |
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_keyWaitBlock = "wb_" // b_batch_no wait block |
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_preLock = "lk_" |
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) |
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// keyWaitBlock return block cache key. |
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func keyWaitBlock(batchNo int64) string { |
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return _keyWaitBlock + fmt.Sprintf("%d", batchNo) |
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} |
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func lockKey(key int64) string { |
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return fmt.Sprintf("%s%d", _preLock, key) |
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} |
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// AddBlockCache add block cache. |
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func (d *Dao) AddBlockCache(c context.Context, mid int64, score int8, blockNo int64) (err error) { |
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var ( |
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key = keyWaitBlock(blockNo) |
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) |
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conn := d.redis.Get(c) |
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defer conn.Close() |
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if err = conn.Send("ZADD", key, score, mid); err != nil { |
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log.Error("conn.Send(ZADD %s,%d,%d) error(%v)", key, score, mid, err) |
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return |
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} |
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if err = conn.Send("EXPIRE", key, d.expire); err != nil { |
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log.Error("conn.Send(EXPIRE) error(%v)", err) |
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return |
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} |
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if err = conn.Flush(); err != nil { |
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log.Error("conn.Flush() error(%v)", err) |
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return |
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} |
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for i := 0; i < 2; i++ { |
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if _, err = conn.Receive(); err != nil { |
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log.Error("conn.Receive() error(%v)", err) |
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return |
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} |
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} |
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return |
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} |
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// BlockMidCache get wait block mids. |
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func (d *Dao) BlockMidCache(c context.Context, batchNo int64, num int64) (res []int64, err error) { |
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var ( |
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conn = d.redis.Get(c) |
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key = keyWaitBlock(batchNo) |
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) |
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defer conn.Close() |
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if res, err = redis.Int64s(conn.Do("ZREVRANGEBYSCORE", key, "+inf", "-inf", "LIMIT", 0, num)); err != nil { |
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log.Error("redis(ZREVRANGEBYSCORE %s,%d) error(%v)", key, num, err) |
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return |
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} |
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return |
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} |
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//SetNXLockCache redis lock. |
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func (d *Dao) SetNXLockCache(c context.Context, k int64) (res bool, err error) { |
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var ( |
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key = lockKey(k) |
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conn = d.redis.Get(c) |
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) |
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defer conn.Close() |
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if res, err = redis.Bool(conn.Do("SETNX", key, "1")); err != nil { |
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if err == redis.ErrNil { |
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err = nil |
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} else { |
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log.Error("conn.Do(SETNX(%d)) error(%v)", key, err) |
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return |
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} |
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} |
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if res { |
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if _, err = redis.Bool(conn.Do("EXPIRE", key, d.verifyExpire)); err != nil { |
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log.Error("conn.Do(EXPIRE, %s, %d) error(%v)", key, d.verifyExpire, err) |
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return |
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} |
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} |
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return |
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} |
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// PingRedis check redis connection |
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func (d *Dao) PingRedis(c context.Context) (err error) { |
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conn := d.redis.Get(c) |
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_, err = conn.Do("SET", "PING", "PONG") |
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conn.Close() |
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return |
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}
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