mirror of https://github.com/vbatts/imgsrv.git
148 lines
3.4 KiB
Go
148 lines
3.4 KiB
Go
// mgo - MongoDB driver for Go
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//
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// Copyright (c) 2010-2012 - Gustavo Niemeyer <gustavo@niemeyer.net>
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this
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// list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package mgo
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import (
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"sync"
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)
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var stats *Stats
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var statsMutex sync.Mutex
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func SetStats(enabled bool) {
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statsMutex.Lock()
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if enabled {
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if stats == nil {
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stats = &Stats{}
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}
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} else {
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stats = nil
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}
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statsMutex.Unlock()
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}
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func GetStats() (snapshot Stats) {
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statsMutex.Lock()
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snapshot = *stats
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statsMutex.Unlock()
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return
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}
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func ResetStats() {
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statsMutex.Lock()
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debug("Resetting stats")
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old := stats
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stats = &Stats{}
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// These are absolute values:
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stats.Clusters = old.Clusters
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stats.SocketsInUse = old.SocketsInUse
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stats.SocketsAlive = old.SocketsAlive
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stats.SocketRefs = old.SocketRefs
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statsMutex.Unlock()
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return
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}
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type Stats struct {
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Clusters int
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MasterConns int
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SlaveConns int
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SentOps int
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ReceivedOps int
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ReceivedDocs int
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SocketsAlive int
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SocketsInUse int
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SocketRefs int
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}
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func (stats *Stats) cluster(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.Clusters += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) conn(delta int, master bool) {
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if stats != nil {
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statsMutex.Lock()
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if master {
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stats.MasterConns += delta
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} else {
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stats.SlaveConns += delta
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}
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) sentOps(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.SentOps += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) receivedOps(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.ReceivedOps += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) receivedDocs(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.ReceivedDocs += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) socketsInUse(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.SocketsInUse += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) socketsAlive(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.SocketsAlive += delta
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statsMutex.Unlock()
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}
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}
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func (stats *Stats) socketRefs(delta int) {
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if stats != nil {
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statsMutex.Lock()
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stats.SocketRefs += delta
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statsMutex.Unlock()
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}
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}
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