1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Macros for stack/heap allocation. |
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17 * |
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18 */ |
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19 |
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20 |
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21 #ifndef _STCKHEAP_H_ |
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22 #define _STCKHEAP_H_ |
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23 |
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24 /* |
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25 * Include files |
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26 */ |
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27 |
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28 |
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29 /* |
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30 * Internal macros |
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31 * (Not supposed to be used in any other file) |
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32 */ |
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33 |
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34 /* Concatenates two strings */ |
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35 #define SOH_CAT_STRINGS(item1, item2) item1 ## item2 |
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36 |
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37 /* Concatenates two macros */ |
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38 #define SOH_CAT_MACROS(macro1, macro2) SOH_CAT_STRINGS(macro1, macro2) |
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39 |
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40 |
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41 /* |
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42 * Public macros |
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43 */ |
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44 |
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45 /* |
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46 * SOH_DEFINE |
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47 * |
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48 * Parameters: |
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49 * type_t type name |
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50 * varName variable name |
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51 * |
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52 * Function: |
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53 * This macro defines a variable called varName of type type_t *. |
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54 * |
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55 * Example: |
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56 * SOH_DEFINE(int, pValue); defines a variable called pValue of type int *. |
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57 */ |
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58 |
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59 /* |
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60 * SOH_ALLOC |
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61 * |
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62 * Parameters: |
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63 * type_t type name |
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64 * varName variable name |
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65 * |
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66 * Function: |
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67 * This macro allocates and initializes a variable previously created |
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68 * with SOH_DEFINE. |
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69 * |
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70 * Example: |
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71 * SOH_ALLOC(int, pValue); allocates an int variable and sets pValue to |
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72 * point to it. |
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73 */ |
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74 |
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75 /* |
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76 * SOH_DEALLOC |
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77 * |
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78 * Parameters: |
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79 * varName variable name |
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80 * |
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81 * Function: |
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82 * This macro deallocates a variable previously created |
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83 * with SOH_DEFINE and SOH_ALLOC. |
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84 * |
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85 * Example: |
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86 * SOH_DEALLOC(pValue); deallocates pValue. |
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87 */ |
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88 |
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89 |
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90 /* Set the pointer to NULL in order to allow safe usage of SOH_DEALLOC |
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91 without a call to SOH_ALLOC first. */ |
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92 #define SOH_DEFINE(type_t, varName) \ |
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93 type_t *varName = NULL |
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94 |
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95 #define SOH_ALLOC(type_t, varName) \ |
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96 varName = (type_t *) malloc(sizeof(type_t)) |
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97 |
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98 #define SOH_DEALLOC(varName) \ |
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99 free(varName) |
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100 |
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101 |
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102 #endif |
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103 // End of File |
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