1 | /** |
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2 | * @file |
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3 | * |
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4 | * @ingroup rtems_bsd_rtems |
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5 | * |
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6 | * @brief TODO. |
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7 | */ |
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8 | |
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9 | /* |
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10 | * COPYRIGHT (c) 2012. |
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11 | * On-Line Applications Research Corporation (OAR). |
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12 | * All rights reserved. |
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13 | * |
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14 | * Redistribution and use in source and binary forms, with or without |
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15 | * modification, are permitted provided that the following conditions |
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16 | * are met: |
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17 | * 1. Redistributions of source code must retain the above copyright |
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18 | * notice, this list of conditions and the following disclaimer. |
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19 | * 2. Redistributions in binary form must reproduce the above copyright |
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20 | * notice, this list of conditions and the following disclaimer in the |
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21 | * documentation and/or other materials provided with the distribution. |
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22 | * |
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23 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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26 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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29 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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30 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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31 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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32 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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33 | * SUCH DAMAGE. |
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34 | */ |
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35 | |
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36 | #include <string.h> |
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37 | #include <stdio.h> |
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38 | #include <rtems.h> |
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39 | |
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40 | |
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41 | static uint32_t networkDaemonPriority = 100; /* XXX */ |
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42 | |
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43 | /* |
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44 | * Structure passed to task-start stub |
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45 | */ |
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46 | struct newtask { |
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47 | void (*entry)(void *); |
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48 | void *arg; |
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49 | }; |
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50 | |
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51 | /* |
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52 | * Task-start stub |
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53 | */ |
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54 | static void |
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55 | taskEntry (rtems_task_argument arg) |
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56 | { |
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57 | struct newtask t; |
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58 | |
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59 | /* |
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60 | * Pick up task information and free |
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61 | * the memory allocated to pass the |
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62 | * information to this task. |
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63 | */ |
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64 | t = *(struct newtask *)arg; |
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65 | free ((struct newtask *)arg); |
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66 | |
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67 | /* |
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68 | * XXX If we need a semaphore it should be added here |
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69 | */ |
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70 | |
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71 | /* |
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72 | * Enter the task |
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73 | */ |
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74 | (*t.entry)(t.arg); |
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75 | rtems_panic ("Network task returned!\n"); |
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76 | } |
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77 | |
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78 | /* |
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79 | * Start a network task |
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80 | */ |
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81 | rtems_id |
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82 | rtems_bsdnet_newproc (char *name, int stacksize, void(*entry)(void *), void *arg) |
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83 | { |
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84 | struct newtask *t; |
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85 | char nm[4]; |
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86 | rtems_id tid; |
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87 | rtems_status_code sc; |
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88 | |
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89 | strncpy (nm, name, 4); |
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90 | sc = rtems_task_create (rtems_build_name(nm[0], nm[1], nm[2], nm[3]), |
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91 | networkDaemonPriority, |
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92 | stacksize, |
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93 | RTEMS_PREEMPT|RTEMS_NO_TIMESLICE|RTEMS_NO_ASR|RTEMS_INTERRUPT_LEVEL(0), |
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94 | RTEMS_NO_FLOATING_POINT|RTEMS_LOCAL, |
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95 | &tid |
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96 | ); |
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97 | if (sc != RTEMS_SUCCESSFUL) |
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98 | rtems_panic ("Can't create network daemon `%s': `%s'\n", name, rtems_status_text (sc)); |
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99 | |
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100 | /* |
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101 | * Set up task arguments |
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102 | */ |
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103 | t = malloc (sizeof *t); |
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104 | t->entry = entry; |
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105 | t->arg = arg; |
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106 | |
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107 | /* |
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108 | * Start the task |
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109 | */ |
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110 | sc = rtems_task_start (tid, taskEntry, (rtems_task_argument)t); |
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111 | if (sc != RTEMS_SUCCESSFUL) |
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112 | rtems_panic ("Can't start network daemon `%s': `%s'\n", name, rtems_status_text (sc)); |
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113 | |
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114 | /* |
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115 | * Let our caller know the i.d. of the new task |
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116 | */ |
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117 | return tid; |
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118 | } |
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