1 | /** |
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2 | * @file |
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3 | * |
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4 | * Task Set/Get Priority Shell Command Implmentation |
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5 | */ |
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6 | |
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7 | /* |
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8 | * COPYRIGHT (c) 1989-2014. |
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9 | * On-Line Applications Research Corporation (OAR). |
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10 | * |
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11 | * The license and distribution terms for this file may be |
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12 | * found in the file LICENSE in this distribution or at |
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13 | * http://www.rtems.com/license/LICENSE. |
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14 | */ |
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15 | |
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16 | #ifdef HAVE_CONFIG_H |
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17 | #include "config.h" |
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18 | #endif |
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19 | |
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20 | #include <stdio.h> |
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21 | |
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22 | #include <rtems.h> |
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23 | #include "shell.h" |
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24 | #include <rtems/stringto.h> |
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25 | #include <schedsim_shell.h> |
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26 | #include <rtems/error.h> |
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27 | |
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28 | int rtems_shell_main_task_priority( |
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29 | int argc, |
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30 | char *argv[] |
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31 | ) |
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32 | { |
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33 | rtems_id id; |
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34 | rtems_status_code status; |
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35 | unsigned long tmp; |
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36 | rtems_task_priority old; |
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37 | rtems_task_priority new; |
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38 | |
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39 | CHECK_RTEMS_IS_UP(); |
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40 | |
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41 | if (argc != 3) { |
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42 | fprintf( stderr, "%s: Usage [name|id] priority\n", argv[0] ); |
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43 | return -1; |
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44 | } |
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45 | |
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46 | if ( lookup_task( argv[1], &id ) ) |
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47 | return -1; |
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48 | |
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49 | if ( rtems_string_to_unsigned_long( argv[2], &tmp, NULL, 0) ) { |
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50 | fprintf( stderr, "Argument (%s) is not a number\n", argv[2] ); |
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51 | return 1; |
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52 | } |
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53 | |
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54 | new = (rtems_task_priority) tmp; |
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55 | |
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56 | /* |
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57 | * Now set and/or obtain the priority the task |
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58 | */ |
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59 | status = rtems_task_set_priority( id, new, &old ); |
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60 | if ( status != RTEMS_SUCCESSFUL ) { |
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61 | fprintf( |
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62 | stderr, |
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63 | "Task Set Priority(%s) returned %s\n", |
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64 | argv[1], |
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65 | rtems_status_text( status ) |
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66 | ); |
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67 | return -1; |
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68 | } |
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69 | |
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70 | if ( new != 0 ) |
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71 | printf("Task (0x%08x) Change Priority from %d to %d\n", id, old, new ); |
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72 | else |
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73 | printf("Task (0x%08x) Current Priority is %d\n", id, new ); |
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74 | |
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75 | return 0; |
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76 | } |
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77 | |
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78 | rtems_shell_cmd_t rtems_shell_TASK_PRIORITY_Command = { |
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79 | "task_priority", /* name */ |
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80 | "task_priority name priority", /* usage */ |
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81 | "rtems", /* topic */ |
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82 | rtems_shell_main_task_priority, /* command */ |
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83 | NULL, /* alias */ |
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84 | NULL /* next */ |
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85 | }; |
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