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 #define KILL_SIGNALS ((1L << (SIGKILL - 1)) | (1L << (SIGKILLTHR - 1))) 14 15 #define SIGNAL_TO_MASK(signal) (1LL << (signal - 1)) 16 17 // additional send_signal_etc() flag 18 #define SIGNAL_FLAG_TEAMS_LOCKED (0x10000) 19 // interrupts are disabled and team lock is held 20 #define SIGNAL_FLAG_DONT_RESTART_SYSCALL (0x20000) 21 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 extern bool handle_signals(struct thread *thread); 28 extern bool is_kill_signal_pending(void); 29 extern int has_signals_pending(void *_thread); 30 extern bool is_signal_blocked(int signal); 31 32 extern void update_current_thread_signals_flag(); 33 34 extern int sigaction_etc(thread_id threadID, int signal, 35 const struct sigaction *newAction, struct sigaction *oldAction); 36 37 extern status_t _user_send_signal(pid_t tid, uint sig); 38 extern status_t _user_sigprocmask(int how, const sigset_t *set, 39 sigset_t *oldSet); 40 extern status_t _user_sigaction(int sig, const struct sigaction *newAction, 41 struct sigaction *oldAction); 42 extern bigtime_t _user_set_alarm(bigtime_t time, uint32 mode); 43 extern status_t _user_sigsuspend(const sigset_t *mask); 44 extern status_t _user_sigpending(sigset_t *set); 45 extern status_t _user_set_signal_stack(const stack_t *newUserStack, 46 stack_t *oldUserStack); 47 48 #ifdef __cplusplus 49 } 50 #endif 51 52 #endif /* _KERNEL_SIGNAL_H */ 53