{"id":2442,"date":"2016-09-27T04:23:18","date_gmt":"2016-09-27T04:23:18","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=2442"},"modified":"2017-01-26T21:29:23","modified_gmt":"2017-01-26T12:29:23","slug":"go-go-%eb%a3%a8%ed%8b%b4%ec%9d%84-%ec%9d%b4%ec%9a%a9%ed%95%9c-url-%ec%bb%a8%ed%85%90%ec%b8%a0-%ea%b0%80%ec%a0%b8%ec%98%a4%ea%b8%b0","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=2442","title":{"rendered":"[Golang] go-routine\uc744 \uc774\uc6a9\ud55c URL \ucee8\ud150\uce20 \uac00\uc838\uc624\uae30"},"content":{"rendered":"

Go \uc5b8\uc5b4\ub294 2009\ub144 \ub9d0\uc5d0 \uacf5\uac1c\ub41c \uc5b8\uc5b4\ub85c, \ub2e4\ub978 \uc5b8\uc5b4\uc5d0 \ube44\ud558\uba74 \ub9e4\uc6b0 \ucd5c\uc2e0\uc758 \uc5b8\uc5b4\uc785\ub2c8\ub2e4. \ucd5c\uadfc \ucef4\ud4e8\ud130 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ubcf4\uba74 \ub3d9\uc2dc\uc131 \ud504\ub85c\uadf8\ub798\ubc0d \ubc29\ubc95\ub860\uc774 \ub9e4\uc6b0 \uc911\uc694\ud55c\ub370\uc694. \ub124\ud2b8\uc6cc\ud06c\ub97c \ud1b5\ud55c \ub370\uc774\ud130 \uc1a1\uc218\uc2e0\ucc98\ub9ac\ub098 \ub300\uc6a9\ub7c9\uc758 \ub370\uc774\ud130\ub97c \ubd84\ud560\ud558\uc5ec \ucc98\ub9ac\ud558\uc5ec \uadf8 \uacb0\uacfc\ub97c \uc694\uc57d\ud558\uace0, \uc774\ub807\uac8c \uc694\uc57d\ub41c \ub370\uc774\ud130\ub97c \ud558\ub098\ub85c \ud569\uccd0 \ucd5c\uc885\uacb0\uacfc\ub97c \ub0b4\ub294 \uacfc\uc815\uc5d0\uc11c.. \ub370\uc774\ud130\ub97c \ubd84\ud560\ud558\uc5ec \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ud560 \uc218 \uc788\ub294 \uc790\uc5f0\uc2a4\ub7fd\uace0, \uc548\uc815\uc801\uc774\uba70 \ube60\ub978 \ucc98\ub9ac\uac00 \ud544\uc694\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. Go \uc5b8\uc5b4\ub294 \uc5b8\uc5b4 \ucc28\uc6d0\uc5d0\uc11c go-module\uc774\ub77c\ub294 \uae30\uc874\uc758 \uc2a4\ub808\ub4dc\ubcf4\ub2e4 \ucd5c\uc801\ud654\ub41c \ub3d9\uc2dc\uc131 \uae30\ub2a5\uacfc \uc774\ub7ec\ud55c \uace0\ubaa8\ub4c8 \uac04\uc758 \ub370\uc774\ud130 \uad50\ud658\uc744 \uc704\ud55c \ubaa9\uc801\uc73c\ub85c \ub3c4\uc785\ub41c channel\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ubb3c\ub860 mutex \ub4f1\uacfc \uac19\uc740 \uae30\uc874\uc758 \uc77c\ubc18\uc801\uc778 \ub370\uc774\ud130 \uacf5\uc720\ub97c \uc704\ud55c \uae30\ubc95\ub3c4 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n

\ucd5c\uadfc \ub3d9\uc2dc\uc131 \ud504\ub85c\uadf8\ub798\ubc0d\uc5d0 \uad00\uc2ec\uc774 \ub9ce\uc558\uace0.. \ub3d9\uc2dc\uc131\uc5d0 \uac15\uc810\uc744 \ubcf4\uc774\ub294 \uba87\uac00\uc9c0 \uc5b8\uc5b4 \uc911 Go \uc5b8\uc5b4\uc5d0 \uac15\ud55c \uc774\ub04c\ub9bc\uc744 \ubc1b\uc558\ub294\ub370\uc694. \uba87 \uc77c\uc804\ubd80\ud130 \uc5d0\uc774\ucf58 \ucd9c\ud310\uc0ac\uc758 The Go Programming Language\ub77c\ub294 \ucc45\uc744 \uc9ec\uc9ec\uc774 \uc0b4\ud3b4\ubcf4\uace0 \uc788\uc2b5\ub2c8\ub2e4. 1\uc7a5\uc758 \ud29c\ud1a0\ub9ac\uc5bc\uc5d0\uc11c \uc18c\uac1c\ub41c \ucf54\ub4dc \uc911 fetchall\uc774\ub77c\ub294 \uc608\uc81c\uc5d0 \ub300\ud574 \uc774\ud574\ud55c \ubc14\ub97c \ubcf5\uc2b5\ucc28\uc6d0\uc5d0\uc11c \uc815\ub9ac\ud574 \ubd05\ub2c8\ub2e4. \ucd5c\ub300\ud55c \uc0c1\uc138\ud788 \uc124\uba85\ud558\uace0 \uc788\uc73c\ubbc0\ub85c Go \uc5b8\uc5b4\ub97c \ucc98\uc74c \uc811\ud558\uc2dc\ub294 \ubd84\ub4e4\ub3c4 \uc774\ud574\uac00 \uac00\ub2a5\ud558\uc2dc\ub9ac\ub77c \ubbff\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc608\uc81c \ud504\ub85c\uadf8\ub7a8\uc73c\ub85c\uc368 fetchall\uc740 \uc2e4\ud589\uc2dc \ud30c\ub77c\uba54\ud130\ub85c \ub2e4\uc218\uc758 URL\uc744 \ub118\uaca8\uc8fc\uba74 \uace0\ub8e8\ud2f4\uc774\ub77c\ub294 Go\uc5b8\uc5b4\uc758 \uc2a4\ub808\ub4dc\ub97c \ud1b5\ud574 \ud574\ub2f9 URL\uc758 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\ub294 \uc2dc\uac04\uc744 \uce21\uc815\ud558\uc5ec \ucd9c\ub825\ud574 \uc90d\ub2c8\ub2e4. \uba3c\uc800 \ud328\ud0a4\uc9c0 \uc774\ub984 \uc120\uc5b8\uacfc \ud568\uaed8 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \uc0ac\uc6a9\ud560 \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c import \ud569\ub2c8\ub2e4.<\/p>\n

package main\r\n\r\nimport (\r\n    \"fmt\"\r\n    \"io\"\r\n    \"io\/ioutil\"\r\n    \"net\/http\"\r\n    \"os\"\r\n    \"time\"\r\n)\r\n<\/pre>\n
fmt\ub294 \ud654\uba74\uc5d0 \ubb38\uc790\uc5f4\uc744 \ucd9c\ub825\ud558\uae30 \uc704\ud574 \ud544\uc694\ud558\uace0, io\uc640 io.ioutil\uc740 URL\uc5d0 \ub300\ud55c \ucee8\ud150\uce20\uc758 \uae38\uc774\ub97c \uc5bb\uae30 \uc704\ud574 \ud544\uc694\ud558\uba70, net\/http\ub294 URL\uc5d0 \ub300\ud55c \uc5f0\uacb0\uc744 \uc704\ud574\uc11c, os\ub294 \uc2e4\ud589\uc2dc Command \ub77c\uc778\uc758 \uc778\uc790\ub97c \uc5bb\uae30 \uc704\ud574\uc11c, \ub05d\uc73c\ub85c time\uc740 URL\uc758 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\ub294\ub370 \uc18c\uc694\ub418\ub294 \uc2dc\uac04\uc744 \uacc4\uc0b0\ud558\uae30 \uc704\ud574\uc11c \ud544\uc694\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac\uc785\ub2c8\ub2e4.<\/p>\n
\ub2e4\uc74c\uc740 \ud504\ub85c\uadf8\ub7a8\uc774 \uc2dc\uc791\ub418\ub294 \ud568\uc218\uc778 main\uc5d0 \ub300\ud55c \ucf54\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n
func main() {\r\n    start := time.Now()\r\n    ch := make(chan string)\r\n\r\n    for _, url := range os.Args[1:] {\r\n        go fetch(url, ch)\r\n    }\r\n\r\n    for range os.Args[1:] {\r\n        fmt.Println(<-ch)\r\n    }\r\n\r\n    fmt.Printf(\"%.2fs elapsed\\n\", time.Since(start).Seconds())\r\n}<\/pre>\n
2\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc2e4\ud589\ud558\uae30 \uc55e\uc11c \ud604\uc7ac\uc758 \uc2dc\uac04\uc744 \uc800\uc7a5\ud574 \ub461\ub2c8\ub2e4. go\ub294 \ubcc0\uc218\uc758 \ud0c0\uc785\uc744 \uba85\uc2dc\uc801\uc73c\ub85c \uc9c0\uc815\ud560 \uc218\ub3c4 \uc788\uace0, 2\ubc88 \ucf54\ub4dc\ucc98\ub7fc := \ub97c \ud1b5\ud574 \ud0c0\uc785\uc744 \uc9c0\uc815\ud558\uc9c0 \uc54a\uace0 \uc120\uc5b8\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. 3\ubc88 \ucf54\ub294 \ucc44\ub110(Channel)\uc744 \ub9cc\ub4dc\ub294 \ucf54\ub4dc\uc785\ub2c8\ub2e4. \ucc44\ub110\uc740 \uc2a4\ub808\ub4dc\ub4e4 \uac04\uc5d0 \ub370\uc774\ud130\ub97c \uc8fc\uace0 \ubc1b\ub294 \uc6a9\ub3c4\ub85c \uc0ac\uc6a9\ub418\ub294\ub370\uc694. Go\ub294 \uace0\ub8e8\ud2f4\uc774\ub77c\ub294 \uae30\uc874\uc758 \uc2a4\ub808\ub4dc\ubcf4\ub2e4 \ucd5c\uc801\ud654\ub41c \ub3d9\uc2dc \uc2e4\ud589\uc744 \uc704\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. 3\ubc88 \ucf54\ub4dc\ub294 \ubb38\uc790\uc5f4 \ud0c0\uc785\uc758 \ub370\uc774\ud130\ub97c \uc8fc\uace0 \ubc1b\uc744 \uc218 \uc788\ub294 \ucc44\ub110\uc744 \uc0dd\uc131\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 5\ubc88~7\ubc88\uc758 \ubc18\ubcf5\ubb38\uc778\ub370\uc694. 5\ubc88 \ucf54\ub4dc\uc758 \ubc18\ubcf5\ubb38\uc778 for \ubb38\uc5d0\uc11c \uc2e4\ud589\uc2dc \uc785\ub825\ud55c Command Line \uc778\uc790\ub97c \uc5bb\uae30 \uc704\ud574 os.Args[1:]\uc774\ub77c\ub294 \uc2ac\ub77c\uc774\uc2a4 \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc815\ud655\ud788 \uc2ac\ub77c\uc774\uc2a4\ub294 \ubc30\uc5f4(Array)\uacfc\ub294 \ub2e4\ub974\uc9c0\ub9cc n\uac1c\uc758 \uc694\uc18c\ub97c \uac16\ub294\ub2e4\uace0 \uac00\uc815\ud55c\ub2e4\uba74 \ubc30\uc5f4\ucc98\ub7fc 0\ubd80\ud130 n-1\uae4c\uc9c0\uc758 \uc778\ub371\uc2a4\ub97c \ud1b5\ud574 \uac01 \uc694\uc18c\uc758 \uac12\uc5d0 \uc811\uadfc\ud560 \uc218 \uc788\ub294\ub370\uc694. os.Args[1:]\uc5d0\uc11c [1:]\uc758 \uc758\ubbf8\ub294 2\ubc88\uc9f8 \uc694\uc18c\ubd80\ud130 \ub9c8\uc9c0\ub9c9 \uc694\uc18c\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. 5\ubc88 \ucf54\ub4dc\uc758 for \ubb38\uc744 \ud1b5\ud574 \uc774 \uac01 \uc694\uc18c\uc758 \uac12\uc740 url\uc774\ub77c\ub294 \ubcc0\uc218\ub85c \uc811\uadfc\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. 6\ubc88 \ucf54\ub4dc\ub294 fetch\ub77c\ub294 \ub4a4\uc5d0\uc11c \uc0b4\ud3b4\ubcfc \uc0ac\uc6a9\uc790 \uc815\uc758 \ud568\uc218\ub97c \uace0\ub8e8\ud2f4\uc73c\ub85c \ub3d9\uc2dc\uc801\uc73c\ub85c \uc2e4\ud589\ud558\ub3c4\ub85d \ud569\ub2c8\ub2e4. fetch \ud568\uc218\ub294 2\uac1c\uc758 \uc778\uc790\ub97c \ubc1b\uc73c\uba70 \uccab\ubc88\uc9f8\ub294 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc62c url \ubb38\uc790\uc5f4\uc774\uace0 \ub450\ubc88\uc9f8\ub294 main \ud568\uc218\uc5d0 \ub300\ud55c \uace0\ub8e8\ud2f4\uacfc fetch \uc2e4\ud589\uc2dc \uc0dd\uc131\ud560 \uace0\ub8e8\ud2f4\uac04\uc758 \ub370\uc774\ud130 \ud1b5\uc2e0\uc744 \uc704\ud55c \ucc44\ub110 \uac1d\uccb4\uc785\ub2c8\ub2e4. \uc8fc\uc9c0\ud560 \ubd80\ubd84\uc740 5\ubc88~7\ubc88 \ucf54\ub4dc\uc758 \ubc18\ubcf5\ubb38 \ud638\ucd9c\uc744 \ud1b5\ud55c fetch \ud568\uc218\uc758 \ud638\ucd9c\uc740 \ube44\ub3d9\uae30\uc801\uc73c\ub85c \uc2e4\ud589\ub418\ubbc0\ub85c \ubc14\ub85c return \ub41c\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \ub2e4\uc2dc 9\ubc88~11\ubc88\uc758 \ubc18\ubcf5\ubb38\uc774 \ub098\uc624\ub294\ub370\uc694. 10\ubc88 \ucf54\ub4dc\uc758 <-ch\ub294 \uc55e\uc11c fetch \ud568\uc218\ub97c \ud1b5\ud574 \uc804\ub2ec\ud55c \ucc44\ub110 \uac1d\uccb4\uc778 ch\ub85c\ubd80\ud130 \ub370\uc774\ud130\uac00 \uc804\ub2ec\ub420\ub54c\uae4c\uc9c0 \ube14\ub7ed\ud0b9(Blocking)\ub429\ub2c8\ub2e4. fetch\uac00 \uace0\ub8e8\ud2f4\uc73c\ub85c \uc2e4\ud589\ub41c \ud69f\uc218\ub9cc\ud07c <-ch\uc5d0 \uc758\ud574 \ube14\ub7ed\ud0b9\ub429\ub2c8\ub2e4. <-ch\ub294 \uace0\ub8e8\ud2f4\uc5d0\uc11c ch\ub97c \ud1b5\ud574 \uc804\ub2ec\ub41c \ub370\uc774\ud130\uac00 \ubc18\ud658\ub418\ubbc0\ub85c 10\ubc88 \ucf54\ub4dc\ub294 fetch \ud568\uc218\uc5d0\uc11c ch \ucc44\ub110\ub85c \uc804\ub2ec\ub41c \ubb38\uc790\uc5f4\uc744 \ud654\uba74\uc5d0 \ucd9c\ub825\ud558\uac8c \ub429\ub2c8\ub2e4. \ub05d\uc73c\ub85c 13\ubc88 \ucf54\ub4dc\ub294 \ucc98\uc74c \ud504\ub85c\uadf8\ub7a8 \uc2dc\uc791\uc5d0\uc11c \ud604\uc7ac\uae4c\uc9c0 \uc2e4\ud589\ub418\uc5b4 \uacbd\uacfc\ub41c \uc2dc\uac04\uc744 \ucd08(Second) \ub2e8\uc704\ub85c \ud654\uba74\uc5d0 \ud45c\uc2dc\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c \ucd9c\ub825\ub418\ub294 \uc2dc\uac04\uc740, \ub9cc\uc57d 5\uac1c\uc758 URL\uc744 \uc778\uc790\ub85c \uc804\ub2ec\ud588\ub2e4\uace0 \ud560\ub54c \uc774 URL\uc5d0 \ub300\ud55c \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\ub294 fetch \ud568\uc218\uc758 \ud638\ucd9c \uc911 \uac00\uc7a5 \uc2dc\uac04\uc774 \ub9ce\uc774 \uc18c\uc694\ub41c \ud638\ucd9c \uc2dc\uac04\uc774\ub77c\ub294 \uc810\uc785\ub2c8\ub2e4. \uc774\ub294 fetch \ud568\uc218\uac00 \uc21c\ucc28\uc801\uc73c\ub85c \uc2e4\ud589\ub418\ub294 \uac83\uc774 \uc544\ub2c8\uace0 \uace0\ub8e8\ud2f4\uc744 \ud1b5\ud574 \ub3d9\uc2dc\uc801\uc73c\ub85c \uc2e4\ud589\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.\n\n\uc774\uc81c \ub2e4\uc74c\uc73c\ub85c fetch \ud568\uc218\uc785\ub2c8\ub2e4.\n\n\n
func fetch(url string, ch chan<\/pre>\n
\uc774 fetch \ud568\uc218\ub294 \uc778\uc790\ub85c \uc8fc\uc5b4\uc9c4 URL\uc5d0 \ub300\ud55c \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\uace0 \uadf8 \ucee8\ud150\uce20\uc758 \uae38\uc774\uc640 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\ub294\ub370 \uc18c\uc694\ub418\ub294 \uc2dc\uac04\uc744 \ubb38\uc790\uc5f4\ub85c \uad6c\uc131\ud558\uc5ec \uc778\uc790\ub85c \uc8fc\uc5b4\uc9c4 \ucc44\ub110\ub85c \ubcf4\ub0b4\ub294 \uae30\ub2a5\uc744 \ud569\ub2c8\ub2e4. \ucf54\ub4dc\ub97c \uc880\ub354 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uba74, 2\ubc88 \ucf54\ub4dc\ub294 \ud568\uc218\ub97c \uc2e4\ud589\ud558\uae30 \uc9c1\uc811\uc758 \ud604\uc7ac \uc2dc\uac04\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. \uc774\ub807\uac8c \uc5bb\uc740 \uc2dc\uac04\uc740 17\ubc88 \ucf54\ub4dc\ub97c \ud1b5\ud574 fetch \ud568\uc218 \ud638\ucd9c\uc774 \ub05d\ub0a0\ub54c \uc18c\uc694\ub41c \uc2dc\uac04\uc744 \uacc4\uc0b0\ud560\ub54c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. 3\ubc88 \ucf54\ub4dc\ub294 url\uc5d0 \ub300\ud55c \ucee8\ud150\uce20\ub97c \uc5bb\uae30 \uc704\ud55c \ucee4\ub125\uc158\uc744 \ub9fa\ub294 \uac83\uc785\ub2c8\ub2e4. Go \uc5b8\uc5b4\ub294 \ud568\uc218\uac00 2\uac1c \uc774\uc0c1\uc758 \uac12\uc744 \ubc18\ud658\ud560 \uc218 \uc788\ub294\ub370\uc694. http.Get \ud568\uc218\ub294 \ub9cc\uc57d \ud574\ub2f9 url\uc744 \uc5bb\uc744\ub54c \uc5d0\ub7ec\uac00 \ubc1c\uc0dd\ud558\uba74 \ub450\ubc88\uc9f8 \ubc18\ud658\uac12\uc5d0 \ud574\ub2f9 \uc5d0\ub7ec\uc5d0 \ub300\ud55c \uac1d\uccb4\ub97c \uc804\ub2ec\ud574 \uc8fc\uac8c \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ubbc0\ub85c 4\ubc88~7\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uba04\uc57d \uc5d0\ub7ec \uac1d\uccb4\uac00 nil\uc774 \uc544\ub2d0 \uacbd\uc6b0 \ud574\ub2f9 \uc5d0\ub7ec\uc758 \ub0b4\uc6a9\uc744 \ubb38\uc790\uc5f4\ub85c \ub9cc\ub4e4\uc5b4 \ucc44\ub110\uc5d0 \uc804\ub2ec\ud558\uace0 fetch \ud568\uc218\ub97c \uc885\ub8cc\ud569\ub2c8\ub2e4. 9\ubc88 \ucf54\ub4dc\ub294 \ud574\ub2f9 url\uc5d0 \ub300\ud55c \ucee8\ud150\uce20\uc758 \uae38\uc774\ub97c \uc5bb\uc5b4\uc624\uae30 \uc704\ud55c \ucf54\ub4dc\uc778\ub370\uc694. io.Copy \ud568\uc218\ub294 \uc2a4\ud2b8\ub9bc\uc5d0\uc11c \ub610 \ub2e4\ub978 \uc2a4\ud2b8\ub9bc\uc73c\ub85c \ub370\uc774\ud130\ub97c \ubcf5\uc0ac\ud558\ub294 \ud568\uc218\uc778\ub370\uc694. \uccab\ubc88\uc9f8 \uc778\uc790\uac00 \ubcf5\uc0ac\ub418\uc5b4 \uc800\uc7a5\ub420 \ucd9c\ub825 \uc2a4\ud2b8\ub9bc\uc774\uace0 \ub450\ubc88\uc9f8 \uc778\uc790\uac00 \ubcf5\uc0ac\ub420 \uc785\ub825 \uc2a4\ud2b8\ub9bc\uc785\ub2c8\ub2e4. \ucd9c\ub825 \uc2a4\ud2b8\ub9bc\uc744 ioutil.Discard\ub85c \uc9c0\uc815\ud558\uba74 \ubcf5\uc0ac\ub418\uc9c0 \uc54a\uace0 \ud3d0\uae30\ub418\uba70, \uc785\ub825 \uc2a4\ud2b8\ub9bc\uc740 \uc55e\uc11c url\uc744 \ud1b5\ud574 \ub9fa\uc740 \ucee4\ub125\uc158\uc758 Body \uac1d\uccb4\ub85c \uc9c0\uc815\ud569\ub2c8\ub2e4. \uc774 io.Copy \ud568\uc218 \uc5ed\uc2dc 2\uac1c\uc758 \uac12\uc744 \ubc18\ud658\ud558\uba70 \ub450\ubc88\uc9f8\uac00 nil\uc774 \uc544\ub2c8\ub77c\uba74 \uc5d0\ub7ec\uc774\ubbc0\ub85c 12\ubc88~14\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc774\ub97c \ud655\uc778\ud558\uace0, \ub9cc\uc57d \uc5d0\ub7ec\uac00 \ubc1c\uc0dd\ud588\ub2e4\uba74 \ucc44\ub110\uc5d0 \uc5d0\ub7ec\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \ubb38\uc790\uc5f4\ub85c \ub9cc\ub4e4\uc5b4 \uc804\ub2ec\ud558\uace0 \ud568\uc218\ub97c \uc885\ub8cc\ud569\ub2c8\ub2e4. 17\ubc88\uc740 \uc131\uacf5\uc801\uc73c\ub85c fetch \ud568\uc218\uac00 \uc2e4\ud589\ub418\uc5b4 \ud574\ub2f9 url\uc758 \ucee8\ud150\uce20\uc758 \uae38\uc774\ub97c \uc798 \uac00\uc838\uc654\ub2e4\uba74, \uc18c\uc694\ub41c \uc2dc\uac04\uc744 \ucd08\ub2e8\uc704\ub85c \uacc4\uc0b0\ud558\uc5ec, 18\ubc88 \ucf54\ub4dc\uc5d0\uc11c \uc774 \uacc4\uc0b0\ub41c \uc2dc\uac04\uacfc url \uadf8\ub9ac\uace0 \ucee8\ud150\uce20\uc758 \uae38\uc774\ub97c \ubb38\uc790\uc5f4\ub85c \uad6c\uc131\ud558\uc5ec \ucc44\ub110\uc5d0 \uc804\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n
\uc2e4\ud589\ud558\uc5ec \uadf8 \uacb0\uacfc\uc758 \ud55c \uc608\ub85c \uc544\ub798\uc758 \ud654\uba74\uc744 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\"\uc0ac\uc6a9\uc790<\/p>\n
\uc704\uc758 \uacb0\uacfc\ub97c \ubcf4\uba74 \ucd1d 5\uac1c\uc758 url\uc744 Command-Line\uc758 \uc778\uc790\ub85c \uc804\ub2ec\ud588\uc73c\uba70 \uc774 \uc911 http:\/\/www.gisdeveloper.co.kr\uc758 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\ub294 \uc2dc\uac04\uc774 0.62\ucd08\ub85c \uc548\ud0c0\uae5d\uc9c0\ub9cc.. \uac00\uc7a5 \ub290\ub838\uc2b5\ub2c8\ub2e4. \uc774 5\uac1c\uc758 url\uc744 \ubaa8\ub450 \uac00\uc838\uc624\ub294 \uc2dc\uac04 \uc5ed\uc2dc 0.62s\ucd08\ub85c \uac00\uc7a5 \ub290\ub9b0 url 1\uac1c\ub97c \uac00\uc838\uc624\ub294 \uc2dc\uac04\uacfc \ub3d9\uc77c\ud558\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uac01 url\uc758 \ucee8\ud150\uce20\ub97c \uac00\uc838\uc624\uae30 \uc704\ud574 \uac01 url\uc5d0 \ub300\ud55c \ucc98\ub9ac\ub97c \uc21c\ucc28\uc801\uc73c\ub85c \ud558\uc9c0 \uc54a\uace0 \ub3d9\uc2dc\uc5d0 \uc2e4\ud589\ud558\uc600\uae30 \ub54c\ubb38\uc5d0 \ub098\uc624\ub294 \uacb0\uacfc\uc785\ub2c8\ub2e4. \uc774\ub294 \uc6b0\ub9ac\uac00 \uc608\uc0c1\ud588\ub358 \uac83\uacfc \ub9e4\uc6b0 \uc815\ud655\ud788 \uc77c\uce58\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
Go \uc5b8\uc5b4\ub294 2009\ub144 \ub9d0\uc5d0 \uacf5\uac1c\ub41c \uc5b8\uc5b4\ub85c, \ub2e4\ub978 \uc5b8\uc5b4\uc5d0 \ube44\ud558\uba74 \ub9e4\uc6b0 \ucd5c\uc2e0\uc758 \uc5b8\uc5b4\uc785\ub2c8\ub2e4. \ucd5c\uadfc \ucef4\ud4e8\ud130 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ubcf4\uba74 \ub3d9\uc2dc\uc131 \ud504\ub85c\uadf8\ub798\ubc0d \ubc29\ubc95\ub860\uc774 \ub9e4\uc6b0 \uc911\uc694\ud55c\ub370\uc694. \ub124\ud2b8\uc6cc\ud06c\ub97c \ud1b5\ud55c \ub370\uc774\ud130 \uc1a1\uc218\uc2e0\ucc98\ub9ac\ub098 \ub300\uc6a9\ub7c9\uc758 \ub370\uc774\ud130\ub97c \ubd84\ud560\ud558\uc5ec \ucc98\ub9ac\ud558\uc5ec \uadf8 \uacb0\uacfc\ub97c \uc694\uc57d\ud558\uace0, \uc774\ub807\uac8c \uc694\uc57d\ub41c \ub370\uc774\ud130\ub97c \ud558\ub098\ub85c \ud569\uccd0 \ucd5c\uc885\uacb0\uacfc\ub97c \ub0b4\ub294 \uacfc\uc815\uc5d0\uc11c.. \ub370\uc774\ud130\ub97c \ubd84\ud560\ud558\uc5ec \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ud560 \uc218 \uc788\ub294 \uc790\uc5f0\uc2a4\ub7fd\uace0, \uc548\uc815\uc801\uc774\uba70 \ube60\ub978 \ucc98\ub9ac\uac00 \ud544\uc694\ud558\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. Go \uc5b8\uc5b4\ub294 \uc5b8\uc5b4 … <\/p>\n
\ub354 \ubcf4\uae30 “[Golang] go-routine\uc744 \uc774\uc6a9\ud55c URL \ucee8\ud150\uce20 \uac00\uc838\uc624\uae30”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[110,111,112],"class_list":["post-2442","post","type-post","status-publish","format-standard","hentry","category-golang","tag-channel","tag-golang","tag-gomodule"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2442","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2442"}],"version-history":[{"count":1,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2442\/revisions"}],"predecessor-version":[{"id":2639,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/2442\/revisions\/2639"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2442"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2442"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2442"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}