1 | /* |
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2 | * Written by Joel Sherrill <joel.sherrill@OARcorp.com>. |
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3 | * |
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4 | * COPYRIGHT (c) 1989-2013, 2015. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * Permission to use, copy, modify, and distribute this software for any |
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8 | * purpose without fee is hereby granted, provided that this entire notice |
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9 | * is included in all copies of any software which is or includes a copy |
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10 | * or modification of this software. |
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11 | * |
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12 | * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED |
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13 | * WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION |
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14 | * OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS |
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15 | * SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. |
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16 | */ |
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17 | |
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18 | #ifndef _SYS__PTHREADTYPES_H_ |
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19 | #define _SYS__PTHREADTYPES_H_ |
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20 | |
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21 | #if defined(_POSIX_THREADS) || __POSIX_VISIBLE >= 199506 |
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22 | |
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23 | #include <sys/sched.h> |
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24 | |
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25 | /* |
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26 | * 2.5 Primitive System Data Types, P1003.1c/D10, p. 19. |
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27 | */ |
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28 | |
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29 | #if defined(__XMK__) |
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30 | typedef unsigned int pthread_t; /* identify a thread */ |
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31 | #else |
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32 | typedef __uint32_t pthread_t; /* identify a thread */ |
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33 | #endif |
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34 | |
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35 | /* P1003.1c/D10, p. 118-119 */ |
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36 | #define PTHREAD_SCOPE_PROCESS 0 |
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37 | #define PTHREAD_SCOPE_SYSTEM 1 |
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38 | |
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39 | /* P1003.1c/D10, p. 111 */ |
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40 | #define PTHREAD_INHERIT_SCHED 1 /* scheduling policy and associated */ |
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41 | /* attributes are inherited from */ |
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42 | /* the calling thread. */ |
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43 | #define PTHREAD_EXPLICIT_SCHED 2 /* set from provided attribute object */ |
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44 | |
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45 | /* P1003.1c/D10, p. 141 */ |
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46 | #define PTHREAD_CREATE_DETACHED 0 |
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47 | #define PTHREAD_CREATE_JOINABLE 1 |
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48 | |
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49 | #if defined(__XMK__) |
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50 | typedef struct pthread_attr_s { |
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51 | int contentionscope; |
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52 | struct sched_param schedparam; |
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53 | int detachstate; |
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54 | void *stackaddr; |
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55 | size_t stacksize; |
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56 | } pthread_attr_t; |
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57 | |
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58 | #define PTHREAD_STACK_MIN 200 |
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59 | |
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60 | #else /* !defined(__XMK__) */ |
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61 | typedef struct { |
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62 | int is_initialized; |
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63 | void *stackaddr; |
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64 | int stacksize; |
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65 | int contentionscope; |
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66 | int inheritsched; |
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67 | int schedpolicy; |
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68 | struct sched_param schedparam; |
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69 | |
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70 | /* P1003.4b/D8, p. 54 adds cputime_clock_allowed attribute. */ |
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71 | #if defined(_POSIX_THREAD_CPUTIME) |
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72 | int cputime_clock_allowed; /* see time.h */ |
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73 | #endif |
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74 | int detachstate; |
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75 | } pthread_attr_t; |
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76 | |
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77 | #endif /* !defined(__XMK__) */ |
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78 | |
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79 | #if defined(_POSIX_THREAD_PROCESS_SHARED) |
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80 | /* NOTE: P1003.1c/D10, p. 81 defines following values for process_shared. */ |
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81 | |
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82 | #define PTHREAD_PROCESS_PRIVATE 0 /* visible within only the creating process */ |
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83 | #define PTHREAD_PROCESS_SHARED 1 /* visible too all processes with access to */ |
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84 | /* the memory where the resource is */ |
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85 | /* located */ |
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86 | #endif |
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87 | |
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88 | #if defined(_POSIX_THREAD_PRIO_PROTECT) |
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89 | /* Mutexes */ |
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90 | |
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91 | /* Values for blocking protocol. */ |
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92 | |
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93 | #define PTHREAD_PRIO_NONE 0 |
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94 | #define PTHREAD_PRIO_INHERIT 1 |
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95 | #define PTHREAD_PRIO_PROTECT 2 |
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96 | #endif |
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97 | |
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98 | #if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) |
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99 | |
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100 | /* Values for mutex type */ |
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101 | |
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102 | /* The following defines are part of the X/Open System Interface (XSI). */ |
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103 | |
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104 | /* |
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105 | * This type of mutex does not detect deadlock. A thread attempting to |
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106 | * relock this mutex without first unlocking it shall deadlock. Attempting |
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107 | * to unlock a mutex locked by a different thread results in undefined |
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108 | * behavior. Attempting to unlock an unlocked mutex results in undefined |
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109 | * behavior. |
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110 | */ |
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111 | #define PTHREAD_MUTEX_NORMAL 0 |
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112 | |
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113 | /* |
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114 | * A thread attempting to relock this mutex without first unlocking |
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115 | * it shall succeed in locking the mutex. The relocking deadlock which |
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116 | * can occur with mutexes of type PTHREAD_MUTEX_NORMAL cannot occur with |
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117 | * this type of mutex. Multiple locks of this mutex shall require the |
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118 | * same number of unlocks to release the mutex before another thread can |
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119 | * acquire the mutex. A thread attempting to unlock a mutex which another |
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120 | * thread has locked shall return with an error. A thread attempting to |
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121 | * unlock an unlocked mutex shall return with an error. |
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122 | */ |
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123 | #define PTHREAD_MUTEX_RECURSIVE 1 |
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124 | |
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125 | /* |
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126 | * This type of mutex provides error checking. A thread attempting |
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127 | * to relock this mutex without first unlocking it shall return with an |
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128 | * error. A thread attempting to unlock a mutex which another thread has |
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129 | * locked shall return with an error. A thread attempting to unlock an |
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130 | * unlocked mutex shall return with an error. |
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131 | */ |
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132 | #define PTHREAD_MUTEX_ERRORCHECK 2 |
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133 | |
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134 | /* |
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135 | * Attempting to recursively lock a mutex of this type results |
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136 | * in undefined behavior. Attempting to unlock a mutex of this type |
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137 | * which was not locked by the calling thread results in undefined |
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138 | * behavior. Attempting to unlock a mutex of this type which is not locked |
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139 | * results in undefined behavior. An implementation may map this mutex to |
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140 | * one of the other mutex types. |
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141 | */ |
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142 | #define PTHREAD_MUTEX_DEFAULT 3 |
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143 | |
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144 | #endif /* !defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) */ |
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145 | |
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146 | #if defined(__XMK__) |
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147 | typedef unsigned int pthread_mutex_t; /* identify a mutex */ |
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148 | |
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149 | typedef struct { |
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150 | int type; |
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151 | } pthread_mutexattr_t; |
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152 | |
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153 | #else /* !defined(__XMK__) */ |
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154 | typedef __uint32_t pthread_mutex_t; /* identify a mutex */ |
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155 | |
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156 | typedef struct { |
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157 | int is_initialized; |
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158 | #if defined(_POSIX_THREAD_PROCESS_SHARED) |
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159 | int process_shared; /* allow mutex to be shared amongst processes */ |
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160 | #endif |
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161 | #if defined(_POSIX_THREAD_PRIO_PROTECT) |
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162 | int prio_ceiling; |
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163 | int protocol; |
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164 | #endif |
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165 | #if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) |
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166 | int type; |
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167 | #endif |
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168 | int recursive; |
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169 | } pthread_mutexattr_t; |
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170 | #endif /* !defined(__XMK__) */ |
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171 | |
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172 | #define _PTHREAD_MUTEX_INITIALIZER ((pthread_mutex_t) 0xFFFFFFFF) |
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173 | |
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174 | /* Condition Variables */ |
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175 | |
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176 | typedef __uint32_t pthread_cond_t; /* identify a condition variable */ |
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177 | |
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178 | #define _PTHREAD_COND_INITIALIZER ((pthread_cond_t) 0xFFFFFFFF) |
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179 | |
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180 | typedef struct { |
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181 | int is_initialized; |
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182 | clock_t clock; /* specifiy clock for timeouts */ |
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183 | #if defined(_POSIX_THREAD_PROCESS_SHARED) |
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184 | int process_shared; /* allow this to be shared amongst processes */ |
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185 | #endif |
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186 | } pthread_condattr_t; /* a condition attribute object */ |
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187 | |
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188 | /* Keys */ |
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189 | |
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190 | typedef __uint32_t pthread_key_t; /* thread-specific data keys */ |
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191 | |
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192 | typedef struct { |
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193 | int is_initialized; /* is this structure initialized? */ |
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194 | int init_executed; /* has the initialization routine been run? */ |
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195 | } pthread_once_t; /* dynamic package initialization */ |
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196 | |
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197 | #define _PTHREAD_ONCE_INIT { 1, 0 } /* is initialized and not run */ |
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198 | #endif /* defined(_POSIX_THREADS) || __POSIX_VISIBLE >= 199506 */ |
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199 | |
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200 | /* POSIX Barrier Types */ |
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201 | |
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202 | #if defined(_POSIX_BARRIERS) |
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203 | typedef __uint32_t pthread_barrier_t; /* POSIX Barrier Object */ |
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204 | typedef struct { |
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205 | int is_initialized; /* is this structure initialized? */ |
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206 | #if defined(_POSIX_THREAD_PROCESS_SHARED) |
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207 | int process_shared; /* allow this to be shared amongst processes */ |
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208 | #endif |
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209 | } pthread_barrierattr_t; |
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210 | #endif /* defined(_POSIX_BARRIERS) */ |
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211 | |
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212 | /* POSIX Spin Lock Types */ |
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213 | |
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214 | #if defined(_POSIX_SPIN_LOCKS) |
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215 | typedef __uint32_t pthread_spinlock_t; /* POSIX Spin Lock Object */ |
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216 | #endif /* defined(_POSIX_SPIN_LOCKS) */ |
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217 | |
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218 | /* POSIX Reader/Writer Lock Types */ |
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219 | |
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220 | #if defined(_POSIX_READER_WRITER_LOCKS) |
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221 | typedef __uint32_t pthread_rwlock_t; /* POSIX RWLock Object */ |
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222 | |
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223 | #define _PTHREAD_RWLOCK_INITIALIZER ((pthread_rwlock_t) 0xFFFFFFFF) |
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224 | |
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225 | typedef struct { |
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226 | int is_initialized; /* is this structure initialized? */ |
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227 | #if defined(_POSIX_THREAD_PROCESS_SHARED) |
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228 | int process_shared; /* allow this to be shared amongst processes */ |
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229 | #endif |
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230 | } pthread_rwlockattr_t; |
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231 | #endif /* defined(_POSIX_READER_WRITER_LOCKS) */ |
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232 | |
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233 | #endif /* ! _SYS__PTHREADTYPES_H_ */ |
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