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Lua support for ANSI C signals
Home Page: http://luaforge.net/projects/luasignal/
This project forked from luadist/lua-signal
Lua support for ANSI C signals
Home Page: http://luaforge.net/projects/luasignal/
This is a signal library for Lua 5.1. It depends on ANSI C signals and has some extensions that are available in POSIX, such as kill(). The library should compile cleanly and easily as a shared object: gcc -shared -o signal.so lsignal.c This code is distributed under the same license as Lua 5.0. You may view the license at the top of any of the source files. =============================================================================== -----------------------------------API----------------------------------------- =============================================================================== All of these functions are placed inside the signal table. signal(sig, handler) sig = number or string representing the signal for the handler. handler = nil or a function, nil to clear a previous handler, and function to set the handler. raise(sig) sig = number or string representing the signal for the handler. ======================== For POSIX compliant systems, the following are defined: kill(pid, sig) pid = number representing the process to receive the signal. sig = number or string representing the signal to be sent. ======================== SIGNALS: Here are some common signals defined below, but the values can change depending on the system the library is compiled on. You can check all the available signals to you inside the signal library using this script: for k in pairs(signal) do print(k) end Making changes to those signals, or removing them, has no effect on the operation of the signal library. They are provided as a convenience and reference. SIGHUP 1 /* Hangup (POSIX). */ SIGINT 2 /* Interrupt (ANSI). */ SIGQUIT 3 /* Quit (POSIX). */ SIGILL 4 /* Illegal instruction (ANSI). */ SIGTRAP 5 /* Trace trap (POSIX). */ SIGABRT 6 /* Abort (ANSI). */ SIGIOT 6 /* IOT trap (4.2 BSD). */ SIGBUS 7 /* BUS error (4.2 BSD). */ SIGFPE 8 /* Floating-point exception (ANSI). */ SIGKILL 9 /* Kill, unblockable (POSIX). */ SIGUSR1 10 /* User-defined signal 1 (POSIX). */ SIGSEGV 11 /* Segmentation violation (ANSI). */ SIGUSR2 12 /* User-defined signal 2 (POSIX). */ SIGPIPE 13 /* Broken pipe (POSIX). */ SIGALRM 14 /* Alarm clock (POSIX). */ SIGTERM 15 /* Termination (ANSI). */ SIGSTKFLT 16 /* Stack fault. */ SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */ SIGCHLD 17 /* Child status has changed (POSIX). */ SIGCONT 18 /* Continue (POSIX). */ SIGSTOP 19 /* Stop, unblockable (POSIX). */ SIGTSTP 20 /* Keyboard stop (POSIX). */ SIGTTIN 21 /* Background read from tty (POSIX). */ SIGTTOU 22 /* Background write to tty (POSIX). */ SIGURG 23 /* Urgent condition on socket (4.2 BSD). */ SIGXCPU 24 /* CPU limit exceeded (4.2 BSD). */ SIGXFSZ 25 /* File size limit exceeded (4.2 BSD). */ SIGVTALRM 26 /* Virtual alarm clock (4.2 BSD). */ SIGPROF 27 /* Profiling alarm clock (4.2 BSD). */ SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */ SIGPOLL SIGIO /* Pollable event occurred (System V). */ SIGIO 29 /* I/O now possible (4.2 BSD). */ SIGPWR 30 /* Power failure restart (System V). */ SIGSYS 31 /* Bad system call. */
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