[494740c] | 1 | /* |
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| 2 | * $Id$ |
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| 3 | */ |
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| 4 | |
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[9f0dfea] | 5 | #ifndef __RTEMS_POSIX_SIGNALS_h |
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| 6 | #define __RTEMS_POSIX_SIGNALS_h |
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| 7 | |
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[07d880f4] | 8 | #include <rtems/posix/pthread.h> |
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| 9 | |
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| 10 | /* |
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| 11 | * Currently 32 signals numbered 1-32 are defined |
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| 12 | */ |
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| 13 | |
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| 14 | #define SIGNAL_EMPTY_MASK 0x00000000 |
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| 15 | #define SIGNAL_ALL_MASK 0xffffffff |
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| 16 | |
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| 17 | #define signo_to_mask( _sig ) (1 << ((_sig) - 1)) |
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| 18 | |
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| 19 | #define is_valid_signo( _sig ) \ |
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| 20 | ((_sig) >= 1 && (_sig) <= 32 ) |
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| 21 | |
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| 22 | #define _States_Is_interruptible_signal( _states ) \ |
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| 23 | ( ((_states) & \ |
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| 24 | (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) == \ |
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| 25 | (STATES_WAITING_FOR_SIGNAL|STATES_INTERRUPTIBLE_BY_SIGNAL)) |
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| 26 | |
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| 27 | #define SIGACTION_TERMINATE \ |
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[e069cdc3] | 28 | { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Abnormal_termination_handler} } |
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[07d880f4] | 29 | #define SIGACTION_IGNORE \ |
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| 30 | { 0, SIGNAL_ALL_MASK, {SIG_IGN} } |
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| 31 | #define SIGACTION_STOP \ |
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| 32 | { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Stop_handler} } |
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| 33 | #define SIGACTION_CONTINUE \ |
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| 34 | { 0, SIGNAL_ALL_MASK, {_POSIX_signals_Continue_handler} } |
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| 35 | |
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| 36 | #define SIG_ARRAY_MAX (SIGRTMAX + 1) |
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| 37 | |
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| 38 | /* |
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| 39 | * Variables |
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| 40 | */ |
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| 41 | |
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| 42 | extern sigset_t _POSIX_signals_Pending; |
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| 43 | |
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| 44 | extern struct sigaction _POSIX_signals_Default_vectors[ SIG_ARRAY_MAX ]; |
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| 45 | |
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| 46 | extern struct sigaction _POSIX_signals_Vectors[ SIG_ARRAY_MAX ]; |
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| 47 | |
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| 48 | extern Watchdog_Control _POSIX_signals_Alarm_timer; |
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| 49 | |
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| 50 | extern Thread_queue_Control _POSIX_signals_Wait_queue; |
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| 51 | |
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| 52 | extern Chain_Control _POSIX_signals_Inactive_siginfo; |
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| 53 | |
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| 54 | extern Chain_Control _POSIX_signals_Siginfo[ SIG_ARRAY_MAX ]; |
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| 55 | |
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| 56 | /* |
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| 57 | * POSIX internal siginfo structure |
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| 58 | */ |
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| 59 | |
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[9f0dfea] | 60 | typedef struct { |
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| 61 | Chain_Node Node; |
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| 62 | siginfo_t Info; |
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| 63 | } POSIX_signals_Siginfo_node; |
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[494740c] | 64 | |
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[07d880f4] | 65 | /* |
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| 66 | * Internal routines |
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| 67 | */ |
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| 68 | |
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[25a882a6] | 69 | void _POSIX_signals_Manager_Initialization( |
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| 70 | int maximum_queued_signals |
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| 71 | ); |
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[7fc3029] | 72 | |
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[494740c] | 73 | void _POSIX_signals_Post_switch_extension( |
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| 74 | Thread_Control *the_thread |
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| 75 | ); |
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| 76 | |
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[07d880f4] | 77 | boolean _POSIX_signals_Unblock_thread( |
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| 78 | Thread_Control *the_thread, |
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| 79 | int signo, |
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| 80 | siginfo_t *info |
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| 81 | ); |
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| 82 | |
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[799c767] | 83 | boolean _POSIX_signals_Check_signal( |
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| 84 | POSIX_API_Control *api, |
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| 85 | int signo, |
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| 86 | boolean is_global |
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| 87 | ); |
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| 88 | |
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[07d880f4] | 89 | boolean _POSIX_signals_Clear_signals( |
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| 90 | POSIX_API_Control *api, |
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| 91 | int signo, |
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| 92 | siginfo_t *info, |
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| 93 | boolean is_global, |
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| 94 | boolean check_blocked |
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| 95 | ); |
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| 96 | |
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| 97 | int killinfo( |
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| 98 | pid_t pid, |
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| 99 | int sig, |
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| 100 | const union sigval *value |
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| 101 | ); |
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| 102 | |
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| 103 | void _POSIX_signals_Set_process_signals( |
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| 104 | sigset_t mask |
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| 105 | ); |
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| 106 | |
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[5c6c4c2] | 107 | void _POSIX_signals_Clear_process_signals( |
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[07d880f4] | 108 | sigset_t mask |
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| 109 | ); |
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| 110 | |
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| 111 | /* |
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| 112 | * Default signal handlers |
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| 113 | */ |
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| 114 | |
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| 115 | #define _POSIX_signals_Stop_handler NULL |
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| 116 | #define _POSIX_signals_Continue_handler NULL |
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| 117 | |
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[e069cdc3] | 118 | void _POSIX_signals_Abnormal_termination_handler( int signo ); |
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[07d880f4] | 119 | |
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[494740c] | 120 | #endif |
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| 121 | /* end of file */ |
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