1 /* 2 * Copyright 2003-2008, Axel Dörfler, axeld@pinc-software.de. All rights reserved. 3 * Distributed under the terms of the MIT License. 4 */ 5 #ifndef _KERNEL_SIGNAL_H 6 #define _KERNEL_SIGNAL_H 7 8 9 #include <KernelExport.h> 10 #include <signal.h> 11 12 13 namespace BKernel { 14 struct Thread; 15 } 16 17 using BKernel::Thread; 18 19 20 #define KILL_SIGNALS ((1L << (SIGKILL - 1)) | (1L << (SIGKILLTHR - 1))) 21 22 #define SIGNAL_TO_MASK(signal) (1LL << (signal - 1)) 23 24 // additional send_signal_etc() flag 25 #define SIGNAL_FLAG_TEAMS_LOCKED (0x10000) 26 // interrupts are disabled and team lock is held 27 #define SIGNAL_FLAG_DONT_RESTART_SYSCALL (0x20000) 28 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 extern bool handle_signals(Thread *thread); 35 extern bool is_kill_signal_pending(void); 36 extern int has_signals_pending(void *_thread); 37 extern bool is_signal_blocked(int signal); 38 39 extern void update_current_thread_signals_flag(); 40 41 extern int sigaction_etc(thread_id threadID, int signal, 42 const struct sigaction *newAction, struct sigaction *oldAction); 43 44 extern status_t _user_send_signal(pid_t tid, uint sig); 45 extern status_t _user_sigprocmask(int how, const sigset_t *set, 46 sigset_t *oldSet); 47 extern status_t _user_sigaction(int sig, const struct sigaction *newAction, 48 struct sigaction *oldAction); 49 extern bigtime_t _user_set_alarm(bigtime_t time, uint32 mode); 50 extern status_t _user_sigwait(const sigset_t *set, int *_signal); 51 extern status_t _user_sigsuspend(const sigset_t *mask); 52 extern status_t _user_sigpending(sigset_t *set); 53 extern status_t _user_set_signal_stack(const stack_t *newUserStack, 54 stack_t *oldUserStack); 55 56 #ifdef __cplusplus 57 } 58 #endif 59 60 #endif /* _KERNEL_SIGNAL_H */ 61