The setlock programD. J. Bernstein UNIX daemontools setlock プãƒã‚°ãƒ©ãƒ setlock ã¯ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ãƒãƒƒã‚¯ã—ã¦åˆ¥ã®ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’èµ·å‹•ã•ã›ã¾ã™ã€‚ 使ã„æ–¹ setlock opts fn child opts 㯠getopt å½¢å¼ã®ã‚ªãƒ—ション郡ã§ã™ã€‚ fn ã¯ä¸€ã¤ã®å¼•æ•°ã§ã™ã€‚ child ã¯ä¸€ã¤ä»¥ä¸Šã®å¼•æ•°ã‹ã‚‰æˆã‚Šã¾ã™ã€‚ setlock ã¯æ›¸ãè¾¼ã¿ç”¨ã« fn ã‚’é–‹ã（å˜åœ¨ã—ãªã‘ã‚Œã°ä½œæˆã—ã¦ï¼‰ã€æŽ’ä»–ãƒãƒƒã‚¯ã‚’é©å¿œã—ã€child ã‚’èµ·å‹•ã•ã›ã¾ã™ã€‚ 通常ã€child ãŒçµ‚了ã—ãŸã¨ãã«ãƒãƒƒã‚¯ã¯è§£é™¤ã•ã‚Œã¾ã™ã€‚ 完全ãªè©±ã‚’書ãã¨: child ã¯ãƒ‡ã‚£ã‚¹ã‚¯ãƒ•ã‚¡ã‚¤ãƒ« fn を示ã—ã¦ã„ã‚‹ãƒãƒƒã‚¯ã•ã‚ŒãŸ ofile 用ã®è¨˜è¿°åãŒä¸Žãˆã‚‰ã‚Œã¾ã™ã€‚ ã“ã® ofile ãŒæ¬¡ã®ã©ã¡ã‚‰ã‹ã«ãªã£ãŸã¨ãã«ãƒãƒƒã‚¯ã¯è§£é™¤ã•ã‚Œã¾ã™: ãã®è¨˜è¿°åã‚’æŒã£ã¦ã„ã‚‹å…¨ã¦ã®ãƒ—ãƒã‚»ã‚¹ã«ã‚ˆã£ã¦é–‰ã˜ã‚‰ã‚ŒãŸã¨ã ã¯ã£ãã‚Šã¨ãƒãƒƒã‚¯ãŒè§£é™¤ã•ã‚Œ
http://labs.cybozu.co.jp/blog/kazuho/archives/2008/01/setlock_cron.php
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