1 | /* |
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2 | * COPYRIGHT (c) 1989-1999. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.OARcorp.com/rtems/license.html. |
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8 | * |
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9 | * $Id$ |
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10 | */ |
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11 | |
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12 | #ifndef __ITRON_FIXED_MEMORYPOOL_h_ |
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13 | #define __ITRON_FIXED_MEMORYPOOL_h_ |
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14 | |
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15 | #ifdef __cplusplus |
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16 | extern "C" { |
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17 | #endif |
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18 | |
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19 | /* |
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20 | * Create Fixed Memory Pool (cre_mpf) Structure |
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21 | */ |
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22 | |
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23 | /* cre_mpf */ |
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24 | typedef struct t_cmpf { |
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25 | VP exinf; /* extended information */ |
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26 | ATR mpfatr; /* memorypool attributes */ |
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27 | INT mpfcnt; /* block count for entire memorypool */ |
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28 | INT blfsz; /* fixed-size memory block size */ |
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29 | /* additional information may be included depending on the implementation */ |
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30 | } T_CMPF; |
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31 | |
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32 | /* |
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33 | * mpfatr |
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34 | */ |
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35 | |
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36 | #define TA_TFIFO 0x00 /* waiting tasks are handled by FIFO */ |
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37 | #define TA_TPRI 0x01 /* waiting tasks are handled by priority */ |
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38 | |
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39 | |
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40 | /* |
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41 | * Reference Fixed Memory Pool (ref_mpf) Structure |
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42 | */ |
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43 | |
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44 | /* ref_mpf */ |
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45 | typedef struct t_rmpf { |
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46 | VP exinf; /* extended information */ |
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47 | BOOL_ID wtsk; /* indicates whether or not there are waiting tasks */ |
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48 | INT frbcnt; /* free block count */ |
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49 | /* additional information may be included depending on the implementation */ |
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50 | } T_RMPF; |
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51 | |
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52 | /* |
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53 | * Fixed Memory Pool Functions |
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54 | */ |
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55 | |
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56 | /* |
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57 | * cre_mpf - Create Fixed-Size Memorypool |
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58 | */ |
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59 | |
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60 | ER cre_mpf( |
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61 | ID mpfid, |
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62 | T_CMPF *pk_cmpf |
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63 | ); |
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64 | |
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65 | /* |
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66 | * del_mpf - Delete Fixed-Size Memorypool |
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67 | */ |
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68 | |
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69 | ER del_mpf( |
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70 | ID mpfid |
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71 | ); |
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72 | |
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73 | /* |
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74 | * get_blf - Get Fixed-Size Memory Block |
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75 | */ |
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76 | |
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77 | ER get_blf( |
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78 | VP *p_blf, |
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79 | ID mpfid |
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80 | ); |
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81 | |
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82 | /* |
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83 | * pget_blf - Poll and Get Fixed-Size Memory Block |
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84 | */ |
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85 | |
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86 | ER pget_blf( |
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87 | VP *p_blf, |
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88 | ID mpfid |
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89 | ); |
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90 | |
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91 | /* |
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92 | * tget_blf - Get Fixed-Size Memory Block with Timeout |
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93 | */ |
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94 | |
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95 | ER tget_blf( |
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96 | VP *p_blf, |
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97 | ID mpfid, |
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98 | TMO tmout |
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99 | ); |
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100 | |
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101 | /* |
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102 | * rel_blf - Release Fixed-Size Memory Block |
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103 | */ |
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104 | |
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105 | ER rel_blf( |
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106 | ID mpfid, |
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107 | VP blf |
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108 | ); |
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109 | |
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110 | /* |
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111 | * ref_mpf - Reference Fixed-Size Memorypool Status |
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112 | */ |
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113 | |
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114 | ER ref_mpf( |
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115 | T_RMPF *pk_rmpf, |
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116 | ID mpfid |
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117 | ); |
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118 | |
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119 | #ifdef __cplusplus |
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120 | } |
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121 | #endif |
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122 | |
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123 | #endif |
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124 | /* end of include file */ |
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125 | |
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