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| 1 | +module Data.Posix.Signal where |
| 2 | + |
| 3 | +import Prelude (Show) |
| 4 | +import Data.Maybe (Maybe(Just, Nothing)) |
| 5 | + |
| 6 | +data Signal |
| 7 | + = SIGABRT |
| 8 | + | SIGALRM |
| 9 | + | SIGBUS |
| 10 | + | SIGCHLD |
| 11 | + | SIGCLD |
| 12 | + | SIGCONT |
| 13 | + | SIGEMT |
| 14 | + | SIGFPE |
| 15 | + | SIGHUP |
| 16 | + | SIGILL |
| 17 | + | SIGINFO |
| 18 | + | SIGINT |
| 19 | + | SIGIO |
| 20 | + | SIGIOT |
| 21 | + | SIGKILL |
| 22 | + | SIGLOST |
| 23 | + | SIGPIPE |
| 24 | + | SIGPOLL |
| 25 | + | SIGPROF |
| 26 | + | SIGPWR |
| 27 | + | SIGQUIT |
| 28 | + | SIGSEGV |
| 29 | + | SIGSTKFLT |
| 30 | + | SIGSTOP |
| 31 | + | SIGSYS |
| 32 | + | SIGTERM |
| 33 | + | SIGTRAP |
| 34 | + | SIGTSTP |
| 35 | + | SIGTTIN |
| 36 | + | SIGTTOU |
| 37 | + | SIGUNUSED |
| 38 | + | SIGURG |
| 39 | + | SIGUSR1 |
| 40 | + | SIGUSR2 |
| 41 | + | SIGVTALRM |
| 42 | + | SIGWINCH |
| 43 | + | SIGXCPU |
| 44 | + | SIGXFSZ |
| 45 | + |
| 46 | +-- | Convert a Signal to a String. Suitable for Node.js APIs. |
| 47 | +toString :: Signal -> String |
| 48 | +toString s = case s of |
| 49 | + SIGABRT -> "SIGABRT" |
| 50 | + SIGALRM -> "SIGALRM" |
| 51 | + SIGBUS -> "SIGBUS" |
| 52 | + SIGCHLD -> "SIGCHLD" |
| 53 | + SIGCLD -> "SIGCLD" |
| 54 | + SIGCONT -> "SIGCONT" |
| 55 | + SIGEMT -> "SIGEMT" |
| 56 | + SIGFPE -> "SIGFPE" |
| 57 | + SIGHUP -> "SIGHUP" |
| 58 | + SIGILL -> "SIGILL" |
| 59 | + SIGINFO -> "SIGINFO" |
| 60 | + SIGINT -> "SIGINT" |
| 61 | + SIGIO -> "SIGIO" |
| 62 | + SIGIOT -> "SIGIOT" |
| 63 | + SIGKILL -> "SIGKILL" |
| 64 | + SIGLOST -> "SIGLOST" |
| 65 | + SIGPIPE -> "SIGPIPE" |
| 66 | + SIGPOLL -> "SIGPOLL" |
| 67 | + SIGPROF -> "SIGPROF" |
| 68 | + SIGPWR -> "SIGPWR" |
| 69 | + SIGQUIT -> "SIGQUIT" |
| 70 | + SIGSEGV -> "SIGSEGV" |
| 71 | + SIGSTKFLT -> "SIGSTKFLT" |
| 72 | + SIGSTOP -> "SIGSTOP" |
| 73 | + SIGSYS -> "SIGSYS" |
| 74 | + SIGTERM -> "SIGTERM" |
| 75 | + SIGTRAP -> "SIGTRAP" |
| 76 | + SIGTSTP -> "SIGTSTP" |
| 77 | + SIGTTIN -> "SIGTTIN" |
| 78 | + SIGTTOU -> "SIGTTOU" |
| 79 | + SIGUNUSED -> "SIGUNUSED" |
| 80 | + SIGURG -> "SIGURG" |
| 81 | + SIGUSR1 -> "SIGUSR1" |
| 82 | + SIGUSR2 -> "SIGUSR2" |
| 83 | + SIGVTALRM -> "SIGVTALRM" |
| 84 | + SIGWINCH -> "SIGWINCH" |
| 85 | + SIGXCPU -> "SIGXCPU" |
| 86 | + SIGXFSZ -> "SIGXFSZ" |
| 87 | + |
| 88 | +-- | Try to parse a Signal from a String. Suitable for use with Node.js APIs. |
| 89 | +-- | This function is a partial inverse of `toString`; in code, that means, for |
| 90 | +-- | all `sig :: Signal`: |
| 91 | +-- | |
| 92 | +-- | `fromString (toString sig) == Just sig` |
| 93 | +-- | |
| 94 | +fromString :: String -> Maybe Signal |
| 95 | +fromString s = case s of |
| 96 | + "SIGABRT" -> Just SIGABRT |
| 97 | + "SIGALRM" -> Just SIGALRM |
| 98 | + "SIGBUS" -> Just SIGBUS |
| 99 | + "SIGCHLD" -> Just SIGCHLD |
| 100 | + "SIGCLD" -> Just SIGCLD |
| 101 | + "SIGCONT" -> Just SIGCONT |
| 102 | + "SIGEMT" -> Just SIGEMT |
| 103 | + "SIGFPE" -> Just SIGFPE |
| 104 | + "SIGHUP" -> Just SIGHUP |
| 105 | + "SIGILL" -> Just SIGILL |
| 106 | + "SIGINFO" -> Just SIGINFO |
| 107 | + "SIGINT" -> Just SIGINT |
| 108 | + "SIGIO" -> Just SIGIO |
| 109 | + "SIGIOT" -> Just SIGIOT |
| 110 | + "SIGKILL" -> Just SIGKILL |
| 111 | + "SIGLOST" -> Just SIGLOST |
| 112 | + "SIGPIPE" -> Just SIGPIPE |
| 113 | + "SIGPOLL" -> Just SIGPOLL |
| 114 | + "SIGPROF" -> Just SIGPROF |
| 115 | + "SIGPWR" -> Just SIGPWR |
| 116 | + "SIGQUIT" -> Just SIGQUIT |
| 117 | + "SIGSEGV" -> Just SIGSEGV |
| 118 | + "SIGSTKFLT" -> Just SIGSTKFLT |
| 119 | + "SIGSTOP" -> Just SIGSTOP |
| 120 | + "SIGSYS" -> Just SIGSYS |
| 121 | + "SIGTERM" -> Just SIGTERM |
| 122 | + "SIGTRAP" -> Just SIGTRAP |
| 123 | + "SIGTSTP" -> Just SIGTSTP |
| 124 | + "SIGTTIN" -> Just SIGTTIN |
| 125 | + "SIGTTOU" -> Just SIGTTOU |
| 126 | + "SIGUNUSED" -> Just SIGUNUSED |
| 127 | + "SIGURG" -> Just SIGURG |
| 128 | + "SIGUSR1" -> Just SIGUSR1 |
| 129 | + "SIGUSR2" -> Just SIGUSR2 |
| 130 | + "SIGVTALRM" -> Just SIGVTALRM |
| 131 | + "SIGWINCH" -> Just SIGWINCH |
| 132 | + "SIGXCPU" -> Just SIGXCPU |
| 133 | + "SIGXFSZ" -> Just SIGXFSZ |
| 134 | + _ -> Nothing |
| 135 | + |
| 136 | +instance showSignal :: Show Signal where |
| 137 | + show = toString |
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