github.com/lianghucheng/zrddz@v0.0.0-20200923083010-c71f680932e2/src/gopkg.in/mgo.v2/stats.go (about) 1 // mgo - MongoDB driver for Go 2 // 3 // Copyright (c) 2010-2012 - Gustavo Niemeyer <gustavo@niemeyer.net> 4 // 5 // All rights reserved. 6 // 7 // Redistribution and use in source and binary forms, with or without 8 // modification, are permitted provided that the following conditions are met: 9 // 10 // 1. Redistributions of source code must retain the above copyright notice, this 11 // list of conditions and the following disclaimer. 12 // 2. Redistributions in binary form must reproduce the above copyright notice, 13 // this list of conditions and the following disclaimer in the documentation 14 // and/or other materials provided with the distribution. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 20 // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27 package mgo 28 29 import ( 30 "sync" 31 ) 32 33 var stats *Stats 34 var statsMutex sync.Mutex 35 36 func SetStats(enabled bool) { 37 statsMutex.Lock() 38 if enabled { 39 if stats == nil { 40 stats = &Stats{} 41 } 42 } else { 43 stats = nil 44 } 45 statsMutex.Unlock() 46 } 47 48 func GetStats() (snapshot Stats) { 49 statsMutex.Lock() 50 snapshot = *stats 51 statsMutex.Unlock() 52 return 53 } 54 55 func ResetStats() { 56 statsMutex.Lock() 57 debug("Resetting stats") 58 old := stats 59 stats = &Stats{} 60 // These are absolute values: 61 stats.Clusters = old.Clusters 62 stats.SocketsInUse = old.SocketsInUse 63 stats.SocketsAlive = old.SocketsAlive 64 stats.SocketRefs = old.SocketRefs 65 statsMutex.Unlock() 66 return 67 } 68 69 type Stats struct { 70 Clusters int 71 MasterConns int 72 SlaveConns int 73 SentOps int 74 ReceivedOps int 75 ReceivedDocs int 76 SocketsAlive int 77 SocketsInUse int 78 SocketRefs int 79 } 80 81 func (stats *Stats) cluster(delta int) { 82 if stats != nil { 83 statsMutex.Lock() 84 stats.Clusters += delta 85 statsMutex.Unlock() 86 } 87 } 88 89 func (stats *Stats) conn(delta int, master bool) { 90 if stats != nil { 91 statsMutex.Lock() 92 if master { 93 stats.MasterConns += delta 94 } else { 95 stats.SlaveConns += delta 96 } 97 statsMutex.Unlock() 98 } 99 } 100 101 func (stats *Stats) sentOps(delta int) { 102 if stats != nil { 103 statsMutex.Lock() 104 stats.SentOps += delta 105 statsMutex.Unlock() 106 } 107 } 108 109 func (stats *Stats) receivedOps(delta int) { 110 if stats != nil { 111 statsMutex.Lock() 112 stats.ReceivedOps += delta 113 statsMutex.Unlock() 114 } 115 } 116 117 func (stats *Stats) receivedDocs(delta int) { 118 if stats != nil { 119 statsMutex.Lock() 120 stats.ReceivedDocs += delta 121 statsMutex.Unlock() 122 } 123 } 124 125 func (stats *Stats) socketsInUse(delta int) { 126 if stats != nil { 127 statsMutex.Lock() 128 stats.SocketsInUse += delta 129 statsMutex.Unlock() 130 } 131 } 132 133 func (stats *Stats) socketsAlive(delta int) { 134 if stats != nil { 135 statsMutex.Lock() 136 stats.SocketsAlive += delta 137 statsMutex.Unlock() 138 } 139 } 140 141 func (stats *Stats) socketRefs(delta int) { 142 if stats != nil { 143 statsMutex.Lock() 144 stats.SocketRefs += delta 145 statsMutex.Unlock() 146 } 147 }