5
Last change
on this file since dbb30e26 was
da826560,
checked in by Sebastian Huber <sebastian.huber@…>, on 05/13/16 at 08:28:14
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posix: Rework thread cancellation
Add Thread_Life_state::THREAD_LIFE_CHANGE_DEFERRED and rework the POSIX
thread cancellation to use the thread life states.
Update #2555.
Update #2626.
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-
Property mode set to
100644
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File size:
1.4 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Sets the Cancelability Type of Calling Thread to value given in type |
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5 | * @ingroup POSIXAPI |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2009. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * Copyright (c) 2016 embedded brains GmbH. |
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13 | * |
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14 | * The license and distribution terms for this file may be |
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15 | * found in the file LICENSE in this distribution or at |
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16 | * http://www.rtems.org/license/LICENSE. |
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17 | */ |
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18 | |
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19 | #if HAVE_CONFIG_H |
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20 | #include "config.h" |
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21 | #endif |
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22 | |
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23 | #include <pthread.h> |
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24 | #include <errno.h> |
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25 | |
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26 | #include <rtems/score/isr.h> |
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27 | #include <rtems/score/threadimpl.h> |
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28 | |
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29 | /* |
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30 | * 18.2.2 Setting Cancelability State, P1003.1c/Draft 10, p. 183 |
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31 | */ |
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32 | |
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33 | int pthread_setcanceltype( |
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34 | int type, |
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35 | int *oldtype |
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36 | ) |
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37 | { |
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38 | Thread_Life_state set_life_state; |
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39 | Thread_Life_state previous_life_state; |
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40 | |
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41 | if ( _ISR_Is_in_progress() ) { |
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42 | return EPROTO; |
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43 | } |
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44 | |
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45 | if ( type == PTHREAD_CANCEL_DEFERRED ) { |
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46 | set_life_state = THREAD_LIFE_CHANGE_DEFERRED; |
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47 | } else if ( type == PTHREAD_CANCEL_ASYNCHRONOUS ) { |
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48 | set_life_state = 0; |
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49 | } else { |
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50 | return EINVAL; |
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51 | } |
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52 | |
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53 | previous_life_state = _Thread_Change_life( |
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54 | THREAD_LIFE_CHANGE_DEFERRED, |
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55 | set_life_state, |
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56 | 0 |
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57 | ); |
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58 | |
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59 | if ( oldtype != NULL ) { |
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60 | if ( ( previous_life_state & THREAD_LIFE_CHANGE_DEFERRED ) != 0 ) { |
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61 | *oldtype = PTHREAD_CANCEL_DEFERRED; |
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62 | } else { |
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63 | *oldtype = PTHREAD_CANCEL_ASYNCHRONOUS; |
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64 | } |
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65 | } |
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66 | |
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67 | return 0; |
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68 | } |
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