1 | /* |
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2 | * $Id$ |
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3 | */ |
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4 | |
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5 | #if HAVE_CONFIG_H |
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6 | #include "config.h" |
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7 | #endif |
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8 | |
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9 | #include <assert.h> |
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10 | #include <errno.h> |
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11 | #include <pthread.h> |
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12 | #include <signal.h> |
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13 | |
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14 | #include <rtems/system.h> |
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15 | #include <rtems/score/isr.h> |
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16 | #include <rtems/score/thread.h> |
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17 | #include <rtems/score/tqdata.h> |
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18 | #include <rtems/score/wkspace.h> |
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19 | #include <rtems/seterr.h> |
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20 | #include <rtems/posix/threadsup.h> |
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21 | #include <rtems/posix/psignal.h> |
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22 | #include <rtems/posix/pthread.h> |
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23 | #include <rtems/posix/time.h> |
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24 | #include <stdio.h> |
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25 | |
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26 | |
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27 | /*PAGE |
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28 | * |
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29 | * _POSIX_signals_Unblock_thread |
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30 | */ |
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31 | |
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32 | /* XXX this routine could probably be cleaned up */ |
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33 | boolean _POSIX_signals_Unblock_thread( |
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34 | Thread_Control *the_thread, |
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35 | int signo, |
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36 | siginfo_t *info |
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37 | ) |
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38 | { |
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39 | POSIX_API_Control *api; |
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40 | sigset_t mask; |
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41 | siginfo_t *the_info = NULL; |
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42 | |
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43 | api = the_thread->API_Extensions[ THREAD_API_POSIX ]; |
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44 | |
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45 | mask = signo_to_mask( signo ); |
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46 | |
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47 | /* |
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48 | * Is the thread is specifically waiting for a signal? |
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49 | */ |
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50 | |
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51 | if ( _States_Is_interruptible_signal( the_thread->current_state ) ) { |
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52 | |
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53 | if ( (the_thread->Wait.option & mask) || (~api->signals_blocked & mask) ) { |
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54 | the_thread->Wait.return_code = EINTR; |
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55 | |
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56 | the_info = (siginfo_t *) the_thread->Wait.return_argument; |
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57 | |
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58 | if ( !info ) { |
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59 | the_info->si_signo = signo; |
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60 | the_info->si_code = SI_USER; |
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61 | the_info->si_value.sival_int = 0; |
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62 | } else { |
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63 | *the_info = *info; |
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64 | } |
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65 | |
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66 | _Thread_queue_Extract_with_proxy( the_thread ); |
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67 | return TRUE; |
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68 | } |
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69 | |
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70 | /* |
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71 | * This should only be reached via pthread_kill(). |
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72 | */ |
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73 | |
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74 | return FALSE; |
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75 | } |
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76 | |
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77 | if ( ~api->signals_blocked & mask ) { |
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78 | the_thread->do_post_task_switch_extension = TRUE; |
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79 | |
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80 | if ( the_thread->current_state & STATES_INTERRUPTIBLE_BY_SIGNAL ) { |
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81 | the_thread->Wait.return_code = EINTR; |
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82 | if ( _States_Is_waiting_on_thread_queue(the_thread->current_state) ) |
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83 | _Thread_queue_Extract_with_proxy( the_thread ); |
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84 | else if ( _States_Is_delaying(the_thread->current_state)){ |
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85 | if ( _Watchdog_Is_active( &the_thread->Timer ) ) |
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86 | (void) _Watchdog_Remove( &the_thread->Timer ); |
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87 | _Thread_Unblock( the_thread ); |
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88 | } |
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89 | } |
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90 | } |
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91 | return FALSE; |
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92 | |
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93 | } |
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