[B! erlang] jksyã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

jksy id:jksy

erlangã«é–¢ã™ã‚‹jksyã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (8)

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Process Dictionaryã€dictã€etsã€gb_trees ã®é€Ÿåº¦æ¯”è¼ƒ - cooldaemonã®å‚™å¿˜éŒ²
ãã‚Œãžã‚Œã®ç”¨é€”ãŒç•°ãªã‚‹ã®ã§ã€é€Ÿåº¦æ¯”è¼ƒã«æ„å‘³ãŒã‚ã‚‹ã®ã‹ç–‘å•ã ã‘ã‚Œã©ãƒ»ãƒ»ãƒ»å˜ç´”ãªã‚ãƒ¼ãƒ»å€¤ã®ãƒšã‚¢ã‚’ä¿æŒã™ã‚‹å ´åˆã®é€Ÿåº¦æ¯”è¼ƒã‚’è¡Œãªã£ã¦ã¿ãŸã€‚ ä½•åº¦ã‹è©¦ã—ãŸçµæžœã€ä¿å˜ãƒ»å–å¾—å…±ã« process dictionaryã€etsã€dictã€gb_trees ã®é †ã«æ—©ã„ã€‚ gb_trees æ¯”ã¹ã¦ dict ã®é€Ÿåº¦ãŒå„ªç§€ã§æ„å¤–ã ã£ãŸã€‚ æ¤œè¨¼ã‚³ãƒ¼ãƒ‰ã¯ä¸‹è¨˜ã®é€šã‚Šã€‚ -module(benchmark). -author('cooldaemon@gmail.com'). -export([run/1]). run(Count) -> Keys = lists:seq(1, Count), lists:foreach( fun ({F, TargetName}) -> {[SetRunTime, SetWallClock], [GetRunTime, GetWallClock]} = F(Keys), io:fwri
jksy 2010/12/24
erlang

map
ãƒªãƒ³ã‚¯
ErlangåŸºç¤Žæ–‡æ³•æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼
å…ˆæ—¥ã€LuaåŸºç¤Žæ–‡æ³•æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼ã‚’æ›¸ã„ã¦ã¿ãŸãŒã€äºˆæƒ³ä»¥ä¸Šã«è‡ªåˆ†è‡ªèº«ã¸ã®å¦ç¿’åŠ¹æžœãŒé«˜ã‹ã£ãŸã€‚ãã“ã§ã€æ™®æ®µä½¿ã£ã¦ã„ã‚‹Pythonã¨åŒã˜ãã‚‰ã„ã«ä½¿ã„ã“ãªã—ãŸã„ã¨æ€ã£ã¦ã„ãŸErlang(ã‚¢ãƒ¼ãƒ©ãƒ³)ã®åŸºç¤Žæ–‡æ³•æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼ã‚’æ›¸ã„ã¦ã¿ã‚‹ã“ã¨ã«ã—ãŸã€‚ ErlangãŒé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã§ã‚ã‚‹ã“ã¨ã‚‚ã‚ã‚Šã€æ›¸ãä¸‹ã™ã®ã¯æ€ã£ãŸã‚ˆã‚Šã‚‚å¤§å¤‰ã ã£ãŸãŒã€å¦ç¿’åŠ¹æžœã¯ã‹ãªã‚Šã‚ã£ãŸã¨æ€ã†ã€‚è¨€èªžã‚’ç¿’å¾—ã—ãŸã„ã¨ãã¯ã“ã®ã‚ˆã†ãªã¾ã¨ã‚ã‚’æ›¸ã„ã¦ã¿ã‚‹ã®ãŒè‰¯ã•ãã†ã ã€‚ ãŸã ã€æ‰‹ç¶šãåž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã«æ¯”ã¹ã¦ç•°ãªã‚‹éƒ¨åˆ†ãŒã‚ã¾ã‚Šã«ã‚‚å¤§ãã„ã®ã§ã€ã™ã¹ã¦ã‚’èª¬æ˜Žã™ã‚‹ã“ã¨ã¯é›£ã—ãã€ã“ã‚Œã‚’èªã‚“ã ã ã‘ã§ã™ãã«ä½¿ãˆãŸã‚Šã¯ã—ãªã„ã‹ã‚‚ã—ã‚Œãªã„ã€‚ã¾ãŸã€é–“é•ã£ã¦ã„ãŸã‚Šã€è¶³ã‚Šãªã„éƒ¨åˆ†ãªã©ãŒã‚ã£ãŸã‚‰ã€æ•™ãˆã¦é ‚ã‘ã‚‹ã¨ã‚ã‚ŠãŒãŸã„ã€‚ 1. åŸºç¤Ž å¯¾è©±ç’°å¢ƒ ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³ã‹ã‚‰erlã‚’å®Ÿè¡Œã™ã‚‹ã¨å¯¾è©±ç’°å¢ƒ(ã‚·ã‚§ãƒ«)ã«ãªã‚Šã¾ã™ã€‚ã‚³ãƒžãƒ³ãƒ‰ã®æœ€å¾Œã«ã¯ãƒ”ãƒªã‚ªãƒ‰(.)ãŒå¿…è¦ã§ã™ã€‚he
jksy 2010/11/26
erlang

ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°

ã¾ã¨ã‚
ãƒªãƒ³ã‚¯
Erlang ã‚¯ã‚¨ãƒƒã‚¯ãƒ–ãƒƒã‚¯
æ–‡å—åˆ— æ–‡å—åˆ—ã‚’æ•°å€¤ã«å¤‰æ›ã™ã‚‹ list_to_integer("123"). % 123 list_to_integer("-10"). % -10 né€²æ•°ã®æ–‡å—åˆ—ã‚’æ•°å€¤ã«å¤‰æ›ã™ã‚‹ u ã¯æŒ‡å®šã—ãŸåŸºæ•°ã§å¤‰æ›ã€# ã¯æ–‡å—åˆ—ãŒè¡¨ç¾ã—ã¦ã„ã‚‹åŸºæ•°ã§å¤‰æ›ã—ã¾ã™ã€‚ io_lib:fread("~16u", "100"). % {ok,[256],[]} io_lib:fread("~2u", "100abc"). % {ok,[4],[abc]} io_lib:fread("~36u", "100%%%"). % {ok,[1296],"%%%"} io_lib:fread("~#", "16#100"). % {ok,[256],[]} io_lib:fread("~#", "2#100abc"). % {ok,[4],[abc]} io_lib:fread("~#", "36#100%%%").
jksy 2010/11/26
erlang

tips

cookbook
ãƒªãƒ³ã‚¯
Erlang Land
é›»è©±ä¼šç¤¾ã‚¨ãƒªã‚¯ã‚½ãƒ³ã®ç ”ç©¶æ‰€ã§ä½œã‚‰ã‚ŒãŸè¨€èªžã€ŒErlangã€ã«ã¤ã„ã¦ã—ã°ã‚‰ãèª¿ã¹ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚èªã¿æ–¹ã¯ãŸã¶ã‚“"ã‚ãƒ¼ã‚‰ã‚“"ã§ã€‚ ãƒªã‚¢ãƒ«ã‚¿ã‚¤ãƒ å‡¦ç†ã‚„èª¤ã‚Šæ¤œå‡ºãŒå¯èƒ½ã§çµ„è¾¼ç”¨é€”ã«ä½¿ã‚ã‚Œã¦ã„ã¦ã€ä¸¦è¡Œå‡¦ç†ã®è¨˜è¿°ã‚‚å¯èƒ½ã€ ML ã‚„ Haskellã€Clean ãªã©ã«ä»£è¡¨ã•ã‚Œã‚‹é–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžã®ä¸€ç¨®ã§ã‚ã‚‹ã€ ã¨ã€è¦‹ãŸç›®ãªã‹ãªã‹ç››ã‚Šã ãã•ã‚“ãªæ„Ÿã˜ã€‚ã•ã¦ã•ã¦ã€‚ ã”æ„è¦‹ãƒ»é–“é•ã„ã®æŒ‡æ‘˜ç‰å¤§æ“è¿Žã€‚ ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« æ¦‚è¦³ï¼‘ æ¦‚è¦³ï¼’ * å¤‰æ•° æ§‹æ–‡ã®åŸºæœ¬ ãƒ‡ãƒ¼ã‚¿æ§‹é€ * ãƒ‘ã‚¿ãƒ¼ãƒ³ãƒžãƒƒãƒï¼‘ ãƒ‘ã‚¿ãƒ¼ãƒ³ãƒžãƒƒãƒï¼’ ãƒ‘ã‚¿ãƒ¼ãƒ³ãƒžãƒƒãƒï¼“ é–¢æ•°å®šç¾© è½ã¡ç©‚æ‹¾ã„ ãƒ¡ãƒ¢ ãƒ—ãƒã‚»ã‚¹ï¼‘ * ãƒ—ãƒã‚»ã‚¹ï¼’ ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« (2003/04/09) Open Source Erlang ã®ãƒšãƒ¼ã‚¸ã‹ã‚‰ã€ ã‚½ãƒ¼ã‚¹ã‚„ãƒ¡ã‚¸ãƒ£ãƒ¼ãªOSç”¨ã®ãƒã‚¤ãƒŠãƒªãŒæ‰‹ã«å…¥ã‚Šã¾ã™ã€‚ç•°æ§˜ã«ãƒ‡ã‚«ã„ã®ã§ã€ å›žç·šã®ç´°ã„æ–¹ã«ã¯åŽ³ã—ã„ã‹ã‚‚ã—ã‚Œã¾ã›ã‚“ã€‚Windowsã®å ´åˆã€ è½ã¨ã—ãŸã‚¤
jksy 2010/11/26
erlang

programming

development

é–¢æ•°åž‹è¨€èªž
ãƒªãƒ³ã‚¯
è»½é‡ã‚¹ãƒ¬ãƒƒãƒ‰ãƒ–ãƒ¼ãƒ ã ã¨æ€ã†ã®ã§ã€ãã“ã‚‰ã¸ã‚“ã®æƒ…å ±ã‚’ã¾ã¨ã‚ã¦ã¿ã‚‹ - é‡‘åˆ©0ç„¡åˆ©æ¯ã‚ãƒ£ãƒƒã‚·ãƒ³ã‚° â€“ ã‚ãƒ£ãƒƒã‚·ãƒ³ã‚°ã§ãã¾ã™ - subtech
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚äº†æ—¥ã‚’2020å¹´1æœˆ31æ—¥(é‡‘)ã«æ±ºå®šã—ã¾ã—ãŸ ä»¥ä¸‹ã®ã‚¨ãƒ³ãƒˆãƒªã®é€šã‚Šã€ä»Šå¹´æœ«ã‚’ç›®å‡¦ã«ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã‚’çµ‚äº†äºˆå®šã§ã‚ã‚‹æ—¨ã‚’ãŠçŸ¥ã‚‰ã›ã—ã¦ãŠã‚Šã¾ã—ãŸã€‚ 2019å¹´æœ«ã‚’ç›®å‡¦ã«ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®æä¾›ã‚’çµ‚äº†ã™ã‚‹äºˆå®šã§ã™ - ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ ã“ã®ãŸã³ã€æ£å¼ã«çµ‚äº†æ—¥ã‚’æ±ºå®šã„ãŸã—ã¾ã—ãŸã®ã§ã€ä»¥ä¸‹ã®é€šã‚Šã”ç¢ºèªãã ã•ã„ã€‚ çµ‚äº†æ—¥: 2020å¹´1æœˆ31æ—¥(é‡‘) ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆå¸Œæœ›ç”³è«‹æœŸé™:2020å¹´1æœˆ31æ—¥(é‡‘) çµ‚äº†æ—¥ä»¥é™ã¯ã€ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®é–²è¦§ãŠã‚ˆã³æŠ•ç¨¿ã¯è¡Œãˆã¾ã›ã‚“ã€‚æ—¥è¨˜ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãŒå¿…è¦ãªæ–¹ã¯ä»¥ä¸‹ã®è¨˜äº‹ã«ã—ãŸãŒã£ã¦æ‰‹ç¶šãã‚’ã—ã¦ãã ã•ã„ã€‚ ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã«æŠ•ç¨¿ã•ã‚ŒãŸæ—¥è¨˜ãƒ‡ãƒ¼ã‚¿ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆã«ã¤ã„ã¦ - ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ ã”åˆ©ç”¨ã®ã¿ãªã•ã¾ã«ã¯ã”è¿·æƒ‘ã‚’ãŠã‹ã‘ã„ãŸã—ã¾ã™ãŒã€ã©ã†ãžã‚ˆã‚ã—ããŠé¡˜ã„ã„ãŸã—ã¾ã™ã€‚ 2020-06-25 è¿½è¨˜ ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—æ—¥è¨˜ã®ã‚¨ã‚¯ã‚¹ãƒãƒ¼ãƒˆãƒ‡ãƒ¼ã‚¿ã¯2020å¹´2æœˆ28
jksy 2010/11/18
c10k

ãƒžãƒ«ãƒã‚¹ãƒ¬ãƒƒãƒ‰

erlang

programming
ãƒªãƒ³ã‚¯
RabbitMQã‚’è©¦ã—ã¦ã¿ã‚‹ - ã‚¹ã‚³ãƒˆãƒ—ãƒªã‚´ãƒ‹ã‚¨ãƒ•ã‚¹ã‚¯é€šä¿¡
RabbitMQã¯Erlangè£½ã®MQã€‚http://www.rabbitmq.com/ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ãƒ³ã‚°ãªã‚‰ã°ActiveMQã§ã„ã„æ°—ã‚‚ã™ã‚‹ãŒã€åƒ•è‡ªèº«ãŒJavaã‚ˆã‚Šã‚‚Erlangã¸ã®ã‚·ãƒ³ãƒ‘ã‚·ãƒ¼ãŒå¼·ã„ã®ã¨ã€ActiveMQã‚’Pythonã§ä½¿ã†ã«ã‚ã£ãŸã£ã¦Stompãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒãŸãã•ã‚“ã‚ã‚Šã™ãŽã¦ã€ãã®ã‚ã‚Šã«ã©ã‚Œã‚‚ã‚¤ãƒžã‚¤ãƒæ„ŸãŒã¬ããˆãªã„ã®ã§ã€RabbitMQã¨AMQPã®çµ„ã¿åˆã‚ã›ã‚’è©¦ã—ã¦ã¿ã‚‹ã€‚CentOSã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ã¾ãšErlangãŒå¿…è¦ã€‚R12B-5ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¦ä¹…ã—ã„ã‚‰ã—ã„ãŒã€åƒ•ã¯Fedora 10ã®SRPMã‚’rebuildã—ã¦R12B-4ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ãŸã€‚ãƒ“ãƒ«ãƒ‰ã™ã‚‹ã«ã‚ãŸã£ã¦ã“ã¡ã‚‰ã§ç´¹ä»‹ã•ã‚Œã¦ã„ã‚‹ãƒ‘ãƒƒãƒãŒå½¹ã«ç«‹ã£ãŸã€‚RPMã§Erlangã‚’å…¥ã‚Œã¦ãŠã‘ã°ã€RabbitMQãŒé…å¸ƒã—ã¦ã„ã‚‹RPMã‚’ä½¿ãˆã°ç°¡å˜ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã§ãã‚‹ã®ã§æ¥½ã€‚http://www.rabbitmq.com/serv
jksy 2010/10/22
erlang

rabbitmq
ãƒªãƒ³ã‚¯
GitHub - erlyaws/yaws: Yaws webserver
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jksy 2010/10/22
webã‚µãƒ¼ãƒãƒ¼

yaws

web server

erlang
ãƒªãƒ³ã‚¯
Erlangå®Ÿé¨“å®¤ï¼šåˆ†ã‹ã‚Šã«ãã„ã¨è©•åˆ¤ã®Erlangã‚¨ãƒ©ãƒ¼ã®ã¾ã¨ã‚ - æªœå±±æ£å¹¸ã®ã‚ãƒžã‚¤ãƒ©é£¼è‚²è¨˜ (ã¯ã¦ãªBlog)
Erlangã®ã‚¨ãƒ©ãƒ¼ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯æš—å·ã®ã‚ˆã†ã ï¼ˆCryptic error messagesï¼‰ã¨ã‹è¨€ã‚ã‚ŒãŸã‚Šã—ã¾ã™ã€‚ç¢ºã‹ã«åˆ†ã‹ã‚Šã«ãã„ã§ã™ã€‚http://bluebones.net/2006/12/erlang-error-messages/ ã«è‰¯ã„ã¾ã¨ã‚ãŒã‚ã£ãŸ*1ã®ã§ã€ã“ã‚Œã‚’æ•·è¡ï¼œãµãˆã‚“ï¼žã™ã‚‹å½¢ã§èª¬æ˜Žã—ã¾ã™ã€‚ å†…å®¹ï¼š ä¾‹å¤–ã®ä¸€èˆ¬è«– ãƒ©ãƒ³ã‚¿ã‚¤ãƒ ã‚¨ãƒ©ãƒ¼ã¨ã‚¹ã‚¿ãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ reasonã‚¿ãƒ¼ãƒ ã®ä¸€è¦§ â—ä¾‹å¤–ã®ä¸€èˆ¬è«– Erlangã®ä¾‹å¤–ï¼ˆexceptionsï¼‰ã¯æ¬¡ã®3ç¨®ã«åˆ†é¡žã•ã‚Œã¾ã™ã€‚ throwä¾‹å¤– ï¼š ãƒ¦ãƒ¼ã‚¶ãƒ¼ï¼ˆãƒ—ãƒã‚°ãƒ©ãƒžï¼‰ãŒä»»æ„ã®æ™‚ç‚¹ã§ç”Ÿæˆã™ã‚‹ä¾‹å¤– exitä¾‹å¤– ï¼š ãƒ—ãƒã‚»ã‚¹*2ã®çµ‚äº†ã«ä¼´ã£ã¦ç”Ÿæˆã•ã‚Œã‚‹ä¾‹å¤– errorä¾‹å¤– ï¼šä¸»ã«ã‚·ã‚¹ãƒ†ãƒ ãŒç”Ÿæˆã™ã‚‹ãƒ©ãƒ³ã‚¿ã‚¤ãƒ ã‚¨ãƒ©ãƒ¼ ãã‚Œãžã‚Œã®ä¾‹å¤–ã‚’ã€æ¬¡ã®é–¢æ•°ã§å¼•ãèµ·ã“ã™ï¼ˆraiseã™ã‚‹ï¼‰ã“ã¨ãŒã§ãã¾ã™ã€‚ throw(Term) exit(Term) erla
jksy 2009/11/04
è‰¯ã„ã¾ã¨ã‚

erlang

ã‚¨ãƒ©ãƒ¼
ãƒªãƒ³ã‚¯
1