My [GO] language program is getting bigger?

This is a creation in Article, where the information may have evolved or changed.

The program is simple, with a simple HTTP request to protect the server daemon

Package Mainimport ("FMT" "Net" "Net/http" "Strings" "Time") var (info []net. Addrip Stringgeturl stringrequest *http. Requestresp *http. Responseclient *http. CLIENTIPX string) func main () {info, _ = net. Interfaceaddrs () IP = strings. Split (Info[0]. String (), "/") [0]FMT. PRINTLN (IP) fmt. PRINTLN ("Alarm would begin in the second..") Fmt. PRINTLN ("Please don't close ...") I: = 10for i > 0 {time. Sleep (time. Second * 1) fmt. Println (i) I--}geturl = "http:/" + IP + "/alarmbegin" request, _ = http. Newrequest ("GET", Geturl, nil)///not mustclient = &http. Client{}resp, _ = client. Do (Request) FMT. Println (RESP) fmt. Println ("Done") go Iva () Ivs ()}func ivsoffline () {//ivs Break processing info, _ = net. Interfaceaddrs () IPX = strings. Split (Info[0]. String (), "/") [0]//FMT. PRINTLN (IPX) If IPX = = "0.0.0.0" {fmt. PRINTLN ("Network problem ...") fmt. PRINTLN (Strings. Split (Info[0]. String (), "/") [0]) for strings. Split (Info[0]. String (), "/") [0] = = "0.0.0.0" {time. Sleep (time. Second * 5) Info, _ = net. Interfaceaddrs ()}fmt. Println ("NetwoRK problem fixed. Alarm would restart in 1 min ") time. Sleep (time. Second *) Geturl = "http://" + strings. Split (Info[0]. String (), "/") [0] + "/refresh" request, _ = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (Request) FMT. Println (RESP) time. Sleep (time. Second * 2) FMT. PRINTLN ("Alarm begin:") Geturl = "http://" + strings. Split (Info[0]. String (), "/") [0] + "/alarmbegin" request, _ = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (Request) FMT. Println (RESP) fmt. Println ("done..")}} IVA line processing func ivaoffline () {defer func () {//} must first declare defer, otherwise the panic exception cannot be caught if err: = Recover (); Err! = nil {fmt. PRINTLN (Err)//panic}} () Geturl = "http://192.168.10.57/milsng/SVSProxy/" request, _ = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (request) if Resp = = nil {fmt. Println ("IVA connect Fail...try to reconnect") for resp = = Nil {time. Sleep (time. Second * 5) Geturl = "http://192.168.10.57/milsng/SVSProxy/" request, _ = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (Request) FMT. Println ("Iva conNect Fail...try to reconnect ")}fmt. Println ("IVA connect refreshing ... pls wait") info, _ = net. Interfaceaddrs () if strings. Split (Info[0]. String (), "/") [0]! = "0.0.0.0" {time. Sleep (time. Minute * 10)//Wait 10 minutes, the purpose is to wait for the IVA server recovery Geturl = "http:/" + strings. Split (Info[0]. String (), "/") [0] + "/refresh" request, _ = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (Request) FMT. Println (RESP) time. Sleep (time. Second * 2) FMT. PRINTLN ("Alarm begin:") Geturl = "http://" + strings. Split (Info[0]. String (), "/") [0] + "/alarmbegin" request, _: = http. Newrequest ("GET", Geturl, nil) resp, _ = client. Do (Request) FMT. Println (RESP)}}//fmt. Println ("IVA connect Success")}func IVs () {IVs: = time. Newticker (Ten * time. Second) for {select {case <-ivs. C:ivsoffline ()}}}func IVA () {IVA: = time. Newticker (Ten * time. Second) for {select {case <-iva. C:ivaoffline ()}}}

First, the runtime is added to the code. GC, garbage collection, invalid result, not a memory that doesn't appear to be released

Then try to debug.freeosmemory never release heap memory to the system, or is constantly getting bigger!!!

Later found to be a TCP connection,

Add in Code

If resp! = nil {resp. Body.close ()}

Close IO to resolve

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