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2746 | decky | 1 | /* |
2 | * Copyright (c) 2007 Jan Hudecek |
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3 | * Copyright (c) 2008 Martin Decky |
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4 | * All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions |
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8 | * are met: |
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9 | * |
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10 | * - Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * - Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * - The name of the author may not be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | /** @addtogroup genericproc |
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31 | * @{ |
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32 | */ |
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33 | /** @file tasklet.h |
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34 | * @brief Tasklets declarations |
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35 | */ |
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36 | |||
37 | #ifndef KERN_TASKLET_H_ |
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38 | #define KERN_TASKLET_H_ |
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39 | |||
40 | #include <adt/list.h> |
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41 | |||
42 | /** Tasklet callback type */ |
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43 | typedef void (* tasklet_callback_t)(void *arg); |
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44 | |||
45 | /** Tasklet state */ |
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46 | typedef enum { |
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47 | NotActive, |
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48 | Scheduled, |
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49 | InProgress, |
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50 | Disabled |
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51 | } tasklet_state_t; |
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52 | |||
53 | /** Structure describing a tasklet */ |
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54 | typedef struct tasklet_descriptor { |
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55 | link_t link; |
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56 | |||
57 | /** Callback to call */ |
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58 | tasklet_callback_t callback; |
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59 | |||
60 | /** Argument passed to the callback */ |
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61 | void* arg; |
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62 | |||
63 | /** State of the tasklet */ |
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64 | tasklet_state_t state; |
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65 | } tasklet_descriptor_t; |
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66 | |||
67 | |||
68 | extern void tasklet_init(void); |
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69 | |||
70 | #endif |
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71 | |||
72 | /** @} |
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73 | */ |