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1 /*
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2 gbasys - a gameboy advance hardware abstraction library
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3 Copyright (C) 2004-2014 John Tsiombikas <nuclear@member.fsf.org>
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18 typedef void (*sighandler_t)(int);
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19
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20 #define SIG_ERR ((sighandler_t)-1) /* Error return. */
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21 #define SIG_DFL ((sighandler_t)0) /* Default action. */
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22 #define SIG_IGN ((sighandler_t)1) /* Ignore signal. */
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23
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24 /* Signals. */
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25 #define SIGHUP 1 /* Hangup (POSIX). */
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26 #define SIGINT 2 /* Interrupt (ANSI). */
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27 #define SIGQUIT 3 /* Quit (POSIX). */
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28 #define SIGILL 4 /* Illegal instruction (ANSI). */
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29 #define SIGTRAP 5 /* Trace trap (POSIX). */
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30 #define SIGABRT 6 /* Abort (ANSI). */
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31 #define SIGIOT 6 /* IOT trap (4.2 BSD). */
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32 #define SIGBUS 7 /* BUS error (4.2 BSD). */
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33 #define SIGFPE 8 /* Floating-point exception (ANSI). */
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34 #define SIGKILL 9 /* Kill, unblockable (POSIX). */
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35 #define SIGUSR1 10 /* User-defined signal 1 (POSIX). */
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36 #define SIGSEGV 11 /* Segmentation violation (ANSI). */
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37 #define SIGUSR2 12 /* User-defined signal 2 (POSIX). */
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38 #define SIGPIPE 13 /* Broken pipe (POSIX). */
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39 #define SIGALRM 14 /* Alarm clock (POSIX). */
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40 #define SIGTERM 15 /* Termination (ANSI). */
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41 #define SIGSTKFLT 16 /* Stack fault. */
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42 #define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
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43 #define SIGCHLD 17 /* Child status has changed (POSIX). */
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44 #define SIGCONT 18 /* Continue (POSIX). */
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45 #define SIGSTOP 19 /* Stop, unblockable (POSIX). */
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46 #define SIGTSTP 20 /* Keyboard stop (POSIX). */
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47 #define SIGTTIN 21 /* Background read from tty (POSIX). */
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48 #define SIGTTOU 22 /* Background write to tty (POSIX). */
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49 #define SIGURG 23 /* Urgent condition on socket (4.2 BSD). */
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50 #define SIGXCPU 24 /* CPU limit exceeded (4.2 BSD). */
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51 #define SIGXFSZ 25 /* File size limit exceeded (4.2 BSD). */
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52 #define SIGVTALRM 26 /* Virtual alarm clock (4.2 BSD). */
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53 #define SIGPROF 27 /* Profiling alarm clock (4.2 BSD). */
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54 #define SIGWINCH 28 /* Window size change (4.3 BSD, Sun). */
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55 #define SIGPOLL SIGIO /* Pollable event occurred (System V). */
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56 #define SIGIO 29 /* I/O now possible (4.2 BSD). */
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57 #define SIGPWR 30 /* Power failure restart (System V). */
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58 #define SIGSYS 31 /* Bad system call. */
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59 #define SIGUNUSED 31
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60
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61 #define SIG_MAX 32
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62
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63 sighandler_t signal(int signum, sighandler_t handler);
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64 int raise(int signum);
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65 int pause(void);
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66
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67 void save_signal(int signum);
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68 void restore_signal(int signum);
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69 sighandler_t signal_func(int signum);
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