Sun, 27 Nov 2022 13:33:30 +0100
improve daemon startup
parent will wait until daemon is started and returns error code if startup failed
daemon startup log messages will be printed by parent
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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2021 Mike Becker, Olaf Wintermann 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 are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. 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 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | /** |
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29 | * \file mempool.h |
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30 | * \brief Interface for memory pool implementations. |
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31 | * \author Mike Becker |
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32 | * \author Olaf Wintermann |
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33 | * \version 3.0 |
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34 | * \copyright 2-Clause BSD License |
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35 | */ |
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36 | |
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37 | #ifndef UCX_MEMPOOL_H |
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38 | #define UCX_MEMPOOL_H |
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39 | |
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40 | #include "allocator.h" |
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41 | |
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42 | #ifdef __cplusplus |
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43 | extern "C" { |
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44 | #endif |
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45 | |
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46 | /** |
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47 | * Memory pool class type. |
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48 | */ |
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49 | typedef struct cx_mempool_class_s cx_mempool_class; |
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50 | |
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51 | /** |
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52 | * The basic structure of a memory pool. |
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53 | * Should be the first member of an actual memory pool implementation. |
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54 | */ |
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55 | struct cx_mempool_s { |
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56 | /** |
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57 | * The pool class definition. |
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58 | */ |
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59 | cx_mempool_class *cl; |
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60 | /** |
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61 | * The provided allocator. |
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62 | */ |
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63 | CxAllocator const *allocator; |
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64 | }; |
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65 | |
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66 | /** |
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67 | * Common type for all memory pool implementations. |
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68 | */ |
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69 | typedef struct cx_mempool_s CxMempool; |
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70 | |
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71 | /** |
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72 | * The class definition for a memory pool. |
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73 | */ |
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74 | struct cx_mempool_class_s { |
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75 | /** Member function for destroying the pool. */ |
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76 | __attribute__((__nonnull__)) |
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77 | void (*destroy)(CxMempool *pool); |
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78 | |
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79 | /** Member function for setting a destructor. */ |
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80 | __attribute__((__nonnull__)) |
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81 | void (*set_destructor)( |
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82 | CxMempool *pool, |
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83 | void *memory, |
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84 | cx_destructor_func fnc |
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85 | ); |
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86 | }; |
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87 | |
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88 | |
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89 | /** |
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90 | * Destroys a memory pool including their contents. |
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91 | * |
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92 | * @param pool the memory pool to destroy |
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93 | */ |
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94 | __attribute__((__nonnull__)) |
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95 | static inline void cxMempoolDestroy(CxMempool *pool) { |
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96 | pool->cl->destroy(pool); |
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97 | } |
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98 | |
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99 | /** |
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100 | * Sets a destructor function for an allocated memory object. |
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101 | * |
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102 | * If the memory is not managed by the pool, the behavior is undefined. |
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103 | * |
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104 | * @param pool the pool |
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105 | * @param memory the objected allocated in the pool |
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106 | * @param fnc the destructor function |
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107 | */ |
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108 | __attribute__((__nonnull__)) |
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109 | static inline void cxMempoolSetDestructor( |
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110 | CxMempool *pool, |
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111 | void *memory, |
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112 | cx_destructor_func fnc |
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113 | ) { |
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114 | pool->cl->set_destructor(pool, memory, fnc); |
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115 | } |
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116 | |
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117 | #ifdef __cplusplus |
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118 | } // extern "C" |
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119 | #endif |
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120 | |
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121 | #endif // UCX_MEMPOOL_H |