From dec4b927dc4f165fb225f288216006050adf1fd5 Mon Sep 17 00:00:00 2001 From: hobokenchicken Date: Thu, 19 Mar 2026 13:15:48 -0400 Subject: [PATCH] feat: implement system metrics and fix monitoring charts Added /api/system/metrics with CPU/Mem/Disk/Load data using gopsutil. Updated Hub to track active WebSocket listeners. Verified log format for monitoring charts. --- go.mod | 8 ++++++ go.sum | 22 +++++++++++++++ internal/server/dashboard.go | 55 ++++++++++++++++++++++++++++++++---- internal/server/server.go | 3 ++ internal/server/websocket.go | 19 +++++++++---- 5 files changed, 97 insertions(+), 10 deletions(-) diff --git a/go.mod b/go.mod index 55f66ee6..f782370f 100644 --- a/go.mod +++ b/go.mod @@ -23,6 +23,7 @@ require ( github.com/fsnotify/fsnotify v1.9.0 // indirect github.com/gabriel-vasile/mimetype v1.4.12 // indirect github.com/gin-contrib/sse v1.1.0 // indirect + github.com/go-ole/go-ole v1.2.6 // indirect github.com/go-playground/locales v0.14.1 // indirect github.com/go-playground/universal-translator v0.18.1 // indirect github.com/go-playground/validator/v10 v10.30.1 // indirect @@ -32,22 +33,29 @@ require ( github.com/json-iterator/go v1.1.12 // indirect github.com/klauspost/cpuid/v2 v2.3.0 // indirect github.com/leodido/go-urn v1.4.0 // indirect + github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect github.com/mattn/go-isatty v0.0.20 // indirect github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect github.com/modern-go/reflect2 v1.0.2 // indirect github.com/ncruces/go-strftime v1.0.0 // indirect github.com/pelletier/go-toml/v2 v2.2.4 // indirect + github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect github.com/quic-go/qpack v0.6.0 // indirect github.com/quic-go/quic-go v0.59.0 // indirect github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect github.com/sagikazarmark/locafero v0.11.0 // indirect + github.com/shirou/gopsutil/v3 v3.24.5 // indirect + github.com/shoenig/go-m1cpu v0.1.6 // indirect github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect github.com/spf13/afero v1.15.0 // indirect github.com/spf13/cast v1.10.0 // indirect github.com/spf13/pflag v1.0.10 // indirect github.com/subosito/gotenv v1.6.0 // indirect + github.com/tklauser/go-sysconf v0.3.12 // indirect + github.com/tklauser/numcpus v0.6.1 // indirect github.com/twitchyliquid64/golang-asm v0.15.1 // indirect github.com/ugorji/go/codec v1.3.1 // indirect + github.com/yusufpapurcu/wmi v1.2.4 // indirect go.mongodb.org/mongo-driver/v2 v2.5.0 // indirect go.yaml.in/yaml/v3 v3.0.4 // indirect golang.org/x/arch v0.22.0 // indirect diff --git a/go.sum b/go.sum index 93a0c3b3..9b9b9e52 100644 --- a/go.sum +++ b/go.sum @@ -23,6 +23,8 @@ github.com/gin-contrib/sse v1.1.0 h1:n0w2GMuUpWDVp7qSpvze6fAu9iRxJY4Hmj6AmBOU05w github.com/gin-contrib/sse v1.1.0/go.mod h1:hxRZ5gVpWMT7Z0B0gSNYqqsSCNIJMjzvm6fqCz9vjwM= github.com/gin-gonic/gin v1.12.0 h1:b3YAbrZtnf8N//yjKeU2+MQsh2mY5htkZidOM7O0wG8= github.com/gin-gonic/gin v1.12.0/go.mod h1:VxccKfsSllpKshkBWgVgRniFFAzFb9csfngsqANjnLc= +github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY= +github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0= github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s= github.com/go-playground/assert/v2 v2.2.0/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4= github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/oXslEjJA= @@ -41,6 +43,7 @@ github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4= github.com/goccy/go-json v0.10.5/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M= github.com/goccy/go-yaml v1.19.2 h1:PmFC1S6h8ljIz6gMRBopkjP1TVT7xuwrButHID66PoM= github.com/goccy/go-yaml v1.19.2/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA= +github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8= github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU= github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= @@ -68,6 +71,8 @@ github.com/leodido/go-urn v1.4.0 h1:WT9HwE9SGECu3lg4d/dIA+jxlljEa1/ffXKmRjqdmIQ= github.com/leodido/go-urn v1.4.0/go.mod h1:bvxc+MVxLKB4z00jd1z+Dvzr47oO32F/QSNjSBOlFxI= github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw= github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o= +github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4= +github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I= github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY= github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y= github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU= @@ -83,6 +88,8 @@ github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0 github.com/pelletier/go-toml/v2 v2.2.4/go.mod h1:2gIqNv+qfxSVS7cM2xJQKtLSTLUE9V8t9Stt+h56mCY= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c h1:ncq/mPwQF4JjgDlrVEn3C11VoGHZN7m8qihwgMEtzYw= +github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE= github.com/quic-go/qpack v0.6.0 h1:g7W+BMYynC1LbYLSqRt8PBg5Tgwxn214ZZR34VIOjz8= github.com/quic-go/qpack v0.6.0/go.mod h1:lUpLKChi8njB4ty2bFLX2x4gzDqXwUpaO1DP9qMDZII= github.com/quic-go/quic-go v0.59.0 h1:OLJkp1Mlm/aS7dpKgTc6cnpynnD2Xg7C1pwL6vy/SAw= @@ -93,6 +100,10 @@ github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjR github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog= github.com/sagikazarmark/locafero v0.11.0 h1:1iurJgmM9G3PA/I+wWYIOw/5SyBtxapeHDcg+AAIFXc= github.com/sagikazarmark/locafero v0.11.0/go.mod h1:nVIGvgyzw595SUSUE6tvCp3YYTeHs15MvlmU87WwIik= +github.com/shirou/gopsutil/v3 v3.24.5 h1:i0t8kL+kQTvpAYToeuiVk3TgDeKOFioZO3Ztz/iZ9pI= +github.com/shirou/gopsutil/v3 v3.24.5/go.mod h1:bsoOS1aStSs9ErQ1WWfxllSeS1K5D+U30r2NfcubMVk= +github.com/shoenig/go-m1cpu v0.1.6 h1:nxdKQNcEB6vzgA2E2bvzKIYRuNj7XNJ4S/aRSwKzFtM= +github.com/shoenig/go-m1cpu v0.1.6/go.mod h1:1JJMcUBvfNwpq05QDQVAnx3gUHr9IYF7GNg9SUEw2VQ= github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 h1:+jumHNA0Wrelhe64i8F6HNlS8pkoyMv5sreGx2Ry5Rw= github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8/go.mod h1:3n1Cwaq1E1/1lhQhtRK2ts/ZwZEhjcQeJQ1RuC6Q/8U= github.com/spf13/afero v1.15.0 h1:b/YBCLWAJdFWJTN9cLhiXXcD7mzKn9Dm86dNnfyQw1I= @@ -116,10 +127,16 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U= github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8= github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU= +github.com/tklauser/go-sysconf v0.3.12 h1:0QaGUFOdQaIVdPgfITYzaTegZvdCjmYO52cSFAEVmqU= +github.com/tklauser/go-sysconf v0.3.12/go.mod h1:Ho14jnntGE1fpdOqQEEaiKRpvIavV0hSfmBq8nJbHYI= +github.com/tklauser/numcpus v0.6.1 h1:ng9scYS7az0Bk4OZLvrNXNSAO2Pxr1XXRAPyjhIx+Fk= +github.com/tklauser/numcpus v0.6.1/go.mod h1:1XfjsgE2zo8GVw7POkMbHENHzVg3GzmoZ9fESEdAacY= github.com/twitchyliquid64/golang-asm v0.15.1 h1:SU5vSMR7hnwNxj24w34ZyCi/FmDZTkS4MhqMhdFk5YI= github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2+aY1QWCk3Cedj/Gdt08= github.com/ugorji/go/codec v1.3.1 h1:waO7eEiFDwidsBN6agj1vJQ4AG7lh2yqXyOXqhgQuyY= github.com/ugorji/go/codec v1.3.1/go.mod h1:pRBVtBSKl77K30Bv8R2P+cLSGaTtex6fsA2Wjqmfxj4= +github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0= +github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0= go.mongodb.org/mongo-driver/v2 v2.5.0 h1:yXUhImUjjAInNcpTcAlPHiT7bIXhshCTL3jVBkF3xaE= go.mongodb.org/mongo-driver/v2 v2.5.0/go.mod h1:yOI9kBsufol30iFsl1slpdq1I0eHPzybRWdyYUs8K/0= go.uber.org/mock v0.6.0 h1:hyF9dfmbgIX5EfOdasqLsWD6xqpNZlXblLB/Dbnwv3Y= @@ -136,7 +153,11 @@ golang.org/x/net v0.51.0 h1:94R/GTO7mt3/4wIKpcR5gkGmRLOuE/2hNGeWq/GBIFo= golang.org/x/net v0.51.0/go.mod h1:aamm+2QF5ogm02fjy5Bb7CQ0WMt1/WVM7FtyaTLlA9Y= golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4= golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI= +golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20201204225414-ed752295db88/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo= golang.org/x/sys v0.42.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw= golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk= @@ -145,6 +166,7 @@ golang.org/x/time v0.15.0 h1:bbrp8t3bGUeFOx08pvsMYRTCVSMk89u4tKbNOZbp88U= golang.org/x/time v0.15.0/go.mod h1:Y4YMaQmXwGQZoFaVFk4YpCt4FLQMYKZe9oeV/f4MSno= golang.org/x/tools v0.42.0 h1:uNgphsn75Tdz5Ji2q36v/nsFSfR/9BRFvqhGBaJGd5k= golang.org/x/tools v0.42.0/go.mod h1:Ma6lCIwGZvHK6XtgbswSoWroEkhugApmsXyrUmBhfr0= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE= google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= diff --git a/internal/server/dashboard.go b/internal/server/dashboard.go index d08741f8..aaf4ffc8 100644 --- a/internal/server/dashboard.go +++ b/internal/server/dashboard.go @@ -4,6 +4,7 @@ import ( "database/sql" "fmt" "net/http" + "os" "strings" "time" @@ -12,6 +13,12 @@ import ( "github.com/gin-gonic/gin" "github.com/google/uuid" "golang.org/x/crypto/bcrypt" + + "github.com/shirou/gopsutil/v3/cpu" + "github.com/shirou/gopsutil/v3/mem" + "github.com/shirou/gopsutil/v3/disk" + "github.com/shirou/gopsutil/v3/load" + "github.com/shirou/gopsutil/v3/process" ) type ApiResponse struct { @@ -955,7 +962,6 @@ func (s *Server) handleGetModels(c *gin.Context) { usedOnly := c.Query("used_only") == "true" // Registry provider normalized name -> Proxy-internal provider ID - // This ensures we only show models from YOUR providers. allowedRegistryProviders := map[string]string{ "openai": "openai", "google": "gemini", @@ -983,7 +989,6 @@ func (s *Server) handleGetModels(c *gin.Context) { err := s.database.Select(&pairs, "SELECT DISTINCT model, provider FROM llm_requests WHERE status = 'success'") if err == nil { for _, p := range pairs { - // Key format: "gpt-4o:openai" usedPairs[fmt.Sprintf("%s:%s", p.Model, p.Provider)] = true } } @@ -992,14 +997,12 @@ func (s *Server) handleGetModels(c *gin.Context) { var result []gin.H if s.registry != nil { for pID, pInfo := range s.registry.Providers { - // Only include models from the 4 allowed registry IDs proxyProvider, allowed := allowedRegistryProviders[pID] if !allowed { continue } for mID, mMeta := range pInfo.Models { - // If usedOnly is true, only include if this exact (model, provider) was logged if usedOnly && !usedPairs[fmt.Sprintf("%s:%s", mID, proxyProvider)] { continue } @@ -1043,7 +1046,7 @@ func (s *Server) handleGetModels(c *gin.Context) { result = append(result, gin.H{ "id": mID, "name": mMeta.Name, - "provider": proxyProvider, // Correctly normalized provider name + "provider": proxyProvider, "enabled": enabled, "prompt_cost": promptCost, "completion_cost": completionCost, @@ -1218,6 +1221,42 @@ func (s *Server) handleSystemHealth(c *gin.Context) { })) } +func (s *Server) handleSystemMetrics(c *gin.Context) { + v, _ := mem.VirtualMemory() + c_usage, _ := cpu.Percent(time.Second, false) + d, _ := disk.Usage("/") + l, _ := load.Avg() + p, _ := process.NewProcess(int32(os.Getpid())) + rss, _ := p.MemoryInfo() + + cpuPercent := 0.0 + if len(c_usage) > 0 { + cpuPercent = c_usage[0] + } + + c.JSON(http.StatusOK, SuccessResponse(gin.H{ + "cpu": gin.H{ + "usage_percent": fmt.Sprintf("%.1f", cpuPercent), + "load_average": []float64{l.Load1, l.Load5, l.Load15}, + }, + "memory": gin.H{ + "used_mb": v.Used / 1024 / 1024, + "total_mb": v.Total / 1024 / 1024, + "usage_percent": fmt.Sprintf("%.1f", v.UsedPercent), + "process_rss_mb": rss.RSS / 1024 / 1024, + }, + "disk": gin.H{ + "used_gb": float64(d.Used) / 1024 / 1024 / 1024, + "total_gb": float64(d.Total) / 1024 / 1024 / 1024, + "usage_percent": fmt.Sprintf("%.1f", d.UsedPercent), + }, + "connections": gin.H{ + "db_active": s.database.Stats().OpenConnections, + "websocket_listeners": s.hub.GetClientCount(), + }, + })) +} + func (s *Server) handleGetSettings(c *gin.Context) { providerCount := 0 modelCount := 0 @@ -1268,6 +1307,7 @@ func (s *Server) handleGetLogs(c *gin.Context) { Model string `json:"model"` Tokens int `json:"tokens"` Status string `json:"status"` + Duration int `json:"duration"` } uiLogs := make([]UILog, len(logs)) @@ -1288,6 +1328,10 @@ func (s *Server) handleGetLogs(c *gin.Context) { if l.TotalTokens != nil { tokens = *l.TotalTokens } + duration := 0 + if l.DurationMS != nil { + duration = *l.DurationMS + } uiLogs[i] = UILog{ Timestamp: l.Timestamp.Format(time.RFC3339), @@ -1296,6 +1340,7 @@ func (s *Server) handleGetLogs(c *gin.Context) { Model: model, Tokens: tokens, Status: l.Status, + Duration: duration, } } diff --git a/internal/server/server.go b/internal/server/server.go index 66882e01..86e7c274 100644 --- a/internal/server/server.go +++ b/internal/server/server.go @@ -74,6 +74,8 @@ func NewServer(cfg *config.Config, database *db.DB) *Server { } func (s *Server) setupRoutes() { + s.router.Use(middleware.AuthMiddleware(s.database)) + // Static files s.router.StaticFile("/", "./static/index.html") s.router.StaticFile("/favicon.ico", "./static/favicon.ico") @@ -134,6 +136,7 @@ func (s *Server) setupRoutes() { admin.DELETE("/users/:id", s.handleDeleteUser) admin.GET("/system/health", s.handleSystemHealth) + admin.GET("/system/metrics", s.handleSystemMetrics) admin.GET("/system/settings", s.handleGetSettings) admin.POST("/system/backup", s.handleCreateBackup) admin.GET("/system/logs", s.handleGetLogs) diff --git a/internal/server/websocket.go b/internal/server/websocket.go index 25be7dc7..534cb683 100644 --- a/internal/server/websocket.go +++ b/internal/server/websocket.go @@ -4,6 +4,7 @@ import ( "log" "net/http" "sync" + "sync/atomic" "github.com/gin-gonic/gin" "github.com/gorilla/websocket" @@ -18,11 +19,12 @@ var upgrader = websocket.Upgrader{ } type Hub struct { - clients map[*websocket.Conn]bool - broadcast chan interface{} - register chan *websocket.Conn - unregister chan *websocket.Conn - mu sync.Mutex + clients map[*websocket.Conn]bool + broadcast chan interface{} + register chan *websocket.Conn + unregister chan *websocket.Conn + mu sync.Mutex + clientCount int32 } func NewHub() *Hub { @@ -40,6 +42,7 @@ func (h *Hub) Run() { case client := <-h.register: h.mu.Lock() h.clients[client] = true + atomic.AddInt32(&h.clientCount, 1) h.mu.Unlock() log.Println("WebSocket client registered") case client := <-h.unregister: @@ -47,6 +50,7 @@ func (h *Hub) Run() { if _, ok := h.clients[client]; ok { delete(h.clients, client) client.Close() + atomic.AddInt32(&h.clientCount, -1) } h.mu.Unlock() log.Println("WebSocket client unregistered") @@ -58,6 +62,7 @@ func (h *Hub) Run() { log.Printf("WebSocket error: %v", err) client.Close() delete(h.clients, client) + atomic.AddInt32(&h.clientCount, -1) } } h.mu.Unlock() @@ -65,6 +70,10 @@ func (h *Hub) Run() { } } +func (h *Hub) GetClientCount() int { + return int(atomic.LoadInt32(&h.clientCount)) +} + func (s *Server) handleWebSocket(c *gin.Context) { conn, err := upgrader.Upgrade(c.Writer, c.Request, nil) if err != nil {