| /* siginfo_t, sigevent and constants. Linux version. |
| Copyright (C) 1997-2002, 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #if !defined _SIGNAL_H && !defined __need_siginfo_t \ |
| && !defined __need_sigevent_t |
| # error "Never include this file directly. Use <signal.h> instead" |
| #endif |
| |
| #include <bits/wordsize.h> |
| |
| #if (!defined __have_sigval_t \ |
| && (defined _SIGNAL_H || defined __need_siginfo_t \ |
| || defined __need_sigevent_t)) |
| # define __have_sigval_t 1 |
| |
| /* Type for data associated with a signal. */ |
| typedef union sigval |
| { |
| int sival_int; |
| void *sival_ptr; |
| } sigval_t; |
| #endif |
| |
| #if (!defined __have_siginfo_t \ |
| && (defined _SIGNAL_H || defined __need_siginfo_t)) |
| # define __have_siginfo_t 1 |
| |
| # define __SI_MAX_SIZE 128 |
| # if __WORDSIZE == 64 |
| # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 4) |
| # else |
| # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3) |
| # endif |
| |
| typedef struct siginfo |
| { |
| int si_signo; /* Signal number. */ |
| int si_errno; /* If non-zero, an errno value associated with |
| this signal, as defined in <errno.h>. */ |
| int si_code; /* Signal code. */ |
| |
| union |
| { |
| int _pad[__SI_PAD_SIZE]; |
| |
| /* kill(). */ |
| struct |
| { |
| __pid_t si_pid; /* Sending process ID. */ |
| __uid_t si_uid; /* Real user ID of sending process. */ |
| } _kill; |
| |
| /* POSIX.1b timers. */ |
| struct |
| { |
| int si_tid; /* Timer ID. */ |
| int si_overrun; /* Overrun count. */ |
| sigval_t si_sigval; /* Signal value. */ |
| } _timer; |
| |
| /* POSIX.1b signals. */ |
| struct |
| { |
| __pid_t si_pid; /* Sending process ID. */ |
| __uid_t si_uid; /* Real user ID of sending process. */ |
| sigval_t si_sigval; /* Signal value. */ |
| } _rt; |
| |
| /* SIGCHLD. */ |
| struct |
| { |
| __pid_t si_pid; /* Which child. */ |
| __uid_t si_uid; /* Real user ID of sending process. */ |
| int si_status; /* Exit value or signal. */ |
| __clock_t si_utime; |
| __clock_t si_stime; |
| } _sigchld; |
| |
| /* SIGILL, SIGFPE, SIGSEGV, SIGBUS. */ |
| struct |
| { |
| void *si_addr; /* Faulting insn/memory ref. */ |
| } _sigfault; |
| |
| /* SIGPOLL. */ |
| struct |
| { |
| long int si_band; /* Band event for SIGPOLL. */ |
| int si_fd; |
| } _sigpoll; |
| } _sifields; |
| } siginfo_t; |
| |
| |
| /* X/Open requires some more fields with fixed names. */ |
| # define si_pid _sifields._kill.si_pid |
| # define si_uid _sifields._kill.si_uid |
| # define si_timerid _sifields._timer.si_tid |
| # define si_overrun _sifields._timer.si_overrun |
| # define si_status _sifields._sigchld.si_status |
| # define si_utime _sifields._sigchld.si_utime |
| # define si_stime _sifields._sigchld.si_stime |
| # define si_value _sifields._rt.si_sigval |
| # define si_int _sifields._rt.si_sigval.sival_int |
| # define si_ptr _sifields._rt.si_sigval.sival_ptr |
| # define si_addr _sifields._sigfault.si_addr |
| # define si_band _sifields._sigpoll.si_band |
| # define si_fd _sifields._sigpoll.si_fd |
| |
| |
| /* Values for `si_code'. Positive values are reserved for kernel-generated |
| signals. */ |
| enum |
| { |
| SI_ASYNCNL = -60, /* Sent by asynch name lookup completion. */ |
| # define SI_ASYNCNL SI_ASYNCNL |
| SI_TKILL = -6, /* Sent by tkill. */ |
| # define SI_TKILL SI_TKILL |
| SI_SIGIO, /* Sent by queued SIGIO. */ |
| # define SI_SIGIO SI_SIGIO |
| SI_ASYNCIO, /* Sent by AIO completion. */ |
| # define SI_ASYNCIO SI_ASYNCIO |
| SI_MESGQ, /* Sent by real time mesq state change. */ |
| # define SI_MESGQ SI_MESGQ |
| SI_TIMER, /* Sent by timer expiration. */ |
| # define SI_TIMER SI_TIMER |
| SI_QUEUE, /* Sent by sigqueue. */ |
| # define SI_QUEUE SI_QUEUE |
| SI_USER, /* Sent by kill, sigsend, raise. */ |
| # define SI_USER SI_USER |
| SI_KERNEL = 0x80 /* Send by kernel. */ |
| #define SI_KERNEL SI_KERNEL |
| }; |
| |
| |
| /* `si_code' values for SIGILL signal. */ |
| enum |
| { |
| ILL_ILLOPC = 1, /* Illegal opcode. */ |
| # define ILL_ILLOPC ILL_ILLOPC |
| ILL_ILLOPN, /* Illegal operand. */ |
| # define ILL_ILLOPN ILL_ILLOPN |
| ILL_ILLADR, /* Illegal addressing mode. */ |
| # define ILL_ILLADR ILL_ILLADR |
| ILL_ILLTRP, /* Illegal trap. */ |
| # define ILL_ILLTRP ILL_ILLTRP |
| ILL_PRVOPC, /* Privileged opcode. */ |
| # define ILL_PRVOPC ILL_PRVOPC |
| ILL_PRVREG, /* Privileged register. */ |
| # define ILL_PRVREG ILL_PRVREG |
| ILL_COPROC, /* Coprocessor error. */ |
| # define ILL_COPROC ILL_COPROC |
| ILL_BADSTK /* Internal stack error. */ |
| # define ILL_BADSTK ILL_BADSTK |
| }; |
| |
| /* `si_code' values for SIGFPE signal. */ |
| enum |
| { |
| FPE_INTDIV = 1, /* Integer divide by zero. */ |
| # define FPE_INTDIV FPE_INTDIV |
| FPE_INTOVF, /* Integer overflow. */ |
| # define FPE_INTOVF FPE_INTOVF |
| FPE_FLTDIV, /* Floating point divide by zero. */ |
| # define FPE_FLTDIV FPE_FLTDIV |
| FPE_FLTOVF, /* Floating point overflow. */ |
| # define FPE_FLTOVF FPE_FLTOVF |
| FPE_FLTUND, /* Floating point underflow. */ |
| # define FPE_FLTUND FPE_FLTUND |
| FPE_FLTRES, /* Floating point inexact result. */ |
| # define FPE_FLTRES FPE_FLTRES |
| FPE_FLTINV, /* Floating point invalid operation. */ |
| # define FPE_FLTINV FPE_FLTINV |
| FPE_FLTSUB /* Subscript out of range. */ |
| # define FPE_FLTSUB FPE_FLTSUB |
| }; |
| |
| /* `si_code' values for SIGSEGV signal. */ |
| enum |
| { |
| SEGV_MAPERR = 1, /* Address not mapped to object. */ |
| # define SEGV_MAPERR SEGV_MAPERR |
| SEGV_ACCERR /* Invalid permissions for mapped object. */ |
| # define SEGV_ACCERR SEGV_ACCERR |
| }; |
| |
| /* `si_code' values for SIGBUS signal. */ |
| enum |
| { |
| BUS_ADRALN = 1, /* Invalid address alignment. */ |
| # define BUS_ADRALN BUS_ADRALN |
| BUS_ADRERR, /* Non-existant physical address. */ |
| # define BUS_ADRERR BUS_ADRERR |
| BUS_OBJERR /* Object specific hardware error. */ |
| # define BUS_OBJERR BUS_OBJERR |
| }; |
| |
| /* `si_code' values for SIGTRAP signal. */ |
| enum |
| { |
| TRAP_BRKPT = 1, /* Process breakpoint. */ |
| # define TRAP_BRKPT TRAP_BRKPT |
| TRAP_TRACE /* Process trace trap. */ |
| # define TRAP_TRACE TRAP_TRACE |
| }; |
| |
| /* `si_code' values for SIGCHLD signal. */ |
| enum |
| { |
| CLD_EXITED = 1, /* Child has exited. */ |
| # define CLD_EXITED CLD_EXITED |
| CLD_KILLED, /* Child was killed. */ |
| # define CLD_KILLED CLD_KILLED |
| CLD_DUMPED, /* Child terminated abnormally. */ |
| # define CLD_DUMPED CLD_DUMPED |
| CLD_TRAPPED, /* Traced child has trapped. */ |
| # define CLD_TRAPPED CLD_TRAPPED |
| CLD_STOPPED, /* Child has stopped. */ |
| # define CLD_STOPPED CLD_STOPPED |
| CLD_CONTINUED /* Stopped child has continued. */ |
| # define CLD_CONTINUED CLD_CONTINUED |
| }; |
| |
| /* `si_code' values for SIGPOLL signal. */ |
| enum |
| { |
| POLL_IN = 1, /* Data input available. */ |
| # define POLL_IN POLL_IN |
| POLL_OUT, /* Output buffers available. */ |
| # define POLL_OUT POLL_OUT |
| POLL_MSG, /* Input message available. */ |
| # define POLL_MSG POLL_MSG |
| POLL_ERR, /* I/O error. */ |
| # define POLL_ERR POLL_ERR |
| POLL_PRI, /* High priority input available. */ |
| # define POLL_PRI POLL_PRI |
| POLL_HUP /* Device disconnected. */ |
| # define POLL_HUP POLL_HUP |
| }; |
| |
| # undef __need_siginfo_t |
| #endif /* !have siginfo_t && (have _SIGNAL_H || need siginfo_t). */ |
| |
| |
| #if (defined _SIGNAL_H || defined __need_sigevent_t) \ |
| && !defined __have_sigevent_t |
| # define __have_sigevent_t 1 |
| |
| /* Structure to transport application-defined values with signals. */ |
| # define __SIGEV_MAX_SIZE 64 |
| # if __WORDSIZE == 64 |
| # define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 4) |
| # else |
| # define __SIGEV_PAD_SIZE ((__SIGEV_MAX_SIZE / sizeof (int)) - 3) |
| # endif |
| |
| typedef struct sigevent |
| { |
| sigval_t sigev_value; |
| int sigev_signo; |
| int sigev_notify; |
| |
| union |
| { |
| int _pad[__SIGEV_PAD_SIZE]; |
| |
| /* When SIGEV_SIGNAL and SIGEV_THREAD_ID set, LWP ID of the |
| thread to receive the signal. */ |
| __pid_t _tid; |
| |
| struct |
| { |
| void (*_function) (sigval_t); /* Function to start. */ |
| void *_attribute; /* Really pthread_attr_t. */ |
| } _sigev_thread; |
| } _sigev_un; |
| } sigevent_t; |
| |
| /* POSIX names to access some of the members. */ |
| # define sigev_notify_function _sigev_un._sigev_thread._function |
| # define sigev_notify_attributes _sigev_un._sigev_thread._attribute |
| |
| /* `sigev_notify' values. */ |
| enum |
| { |
| SIGEV_SIGNAL = 0, /* Notify via signal. */ |
| # define SIGEV_SIGNAL SIGEV_SIGNAL |
| SIGEV_NONE, /* Other notification: meaningless. */ |
| # define SIGEV_NONE SIGEV_NONE |
| SIGEV_THREAD, /* Deliver via thread creation. */ |
| # define SIGEV_THREAD SIGEV_THREAD |
| |
| SIGEV_THREAD_ID = 4 /* Send signal to specific thread. */ |
| #define SIGEV_THREAD_ID SIGEV_THREAD_ID |
| }; |
| |
| #endif /* have _SIGNAL_H. */ |