Mercurial > flash_v2
annotate packages/kernel/current/src/common/kapi.cxx @ 1777:c16341b1bac6 default tip
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| author | alexs |
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| date | Mon, 12 Oct 2009 02:26:09 +0100 |
| parents | 57cebf53b527 |
| children |
| rev | line source |
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| 0 | 1 //========================================================================== |
| 2 // | |
| 2 | 3 // common/kapi.cxx |
| 0 | 4 // |
| 2 | 5 // C API Implementation |
| 0 | 6 // |
| 7 //========================================================================== | |
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8 //####ECOSGPLCOPYRIGHTBEGIN#### |
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9 // ------------------------------------------- |
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10 // This file is part of eCos, the Embedded Configurable Operating System. |
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
| 460 | 12 // Copyright (C) 2002 Nick Garnett |
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13 // Copyright (C) 2003 Jonathan Larmour |
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14 // |
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15 // eCos is free software; you can redistribute it and/or modify it under |
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16 // the terms of the GNU General Public License as published by the Free |
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17 // Software Foundation; either version 2 or (at your option) any later version. |
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18 // |
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19 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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20 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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21 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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22 // for more details. |
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23 // |
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24 // You should have received a copy of the GNU General Public License along |
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25 // with eCos; if not, write to the Free Software Foundation, Inc., |
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26 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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27 // |
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28 // As a special exception, if other files instantiate templates or use macros |
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29 // or inline functions from this file, or you compile this file and link it |
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30 // with other works to produce a work based on this file, this file does not |
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31 // by itself cause the resulting work to be covered by the GNU General Public |
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32 // License. However the source code for this file must still be made available |
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33 // in accordance with section (3) of the GNU General Public License. |
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34 // |
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35 // This exception does not invalidate any other reasons why a work based on |
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36 // this file might be covered by the GNU General Public License. |
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37 // |
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38 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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39 // at http://sources.redhat.com/ecos/ecos-license/ |
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40 // ------------------------------------------- |
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41 //####ECOSGPLCOPYRIGHTEND#### |
| 0 | 42 //========================================================================== |
| 43 //#####DESCRIPTIONBEGIN#### | |
| 44 // | |
| 2 | 45 // Author(s): nickg, dsm |
| 46 // Contributors: nickg | |
| 47 // Date: 1998-03-02 | |
| 48 // Purpose: C API Implementation | |
| 49 // Description: C++ implementation of the C API | |
| 0 | 50 // |
| 51 // | |
| 52 //####DESCRIPTIONEND#### | |
| 53 // | |
| 54 //========================================================================== | |
| 55 | |
| 56 #include <pkgconf/kernel.h> | |
| 57 | |
| 58 #ifdef CYGFUN_KERNEL_API_C | |
| 59 | |
| 60 #include <cyg/kernel/ktypes.h> // base kernel types | |
| 61 #include <cyg/infra/cyg_trac.h> // tracing macros | |
| 62 #include <cyg/infra/cyg_ass.h> // assertion macros | |
| 63 #include <cyg/kernel/instrmnt.h> // instrumentation | |
| 64 #include <cyg/kernel/diag.h> | |
| 65 | |
| 66 #include <cyg/kernel/thread.hxx> | |
| 67 #include <cyg/kernel/thread.inl> // thread inlines | |
| 68 #include <cyg/kernel/sched.hxx> | |
| 69 #include <cyg/kernel/intr.hxx> | |
| 70 #include <cyg/kernel/clock.hxx> | |
| 71 | |
| 72 #include <cyg/kernel/sema.hxx> | |
| 73 #include <cyg/kernel/flag.hxx> | |
| 74 #include <cyg/kernel/mutex.hxx> | |
| 75 #include <cyg/kernel/mbox.hxx> | |
| 76 | |
| 77 #include <cyg/kernel/sched.inl> // scheduler inlines | |
| 78 #include <cyg/kernel/clock.inl> // clock inlines | |
| 79 | |
| 80 #include <cyg/kernel/kapi.h> // C API | |
| 81 | |
| 82 // ------------------------------------------------------------------------- | |
| 83 // Magic new function | |
| 84 | |
| 85 inline void *operator new(size_t size, void *ptr) | |
| 86 { | |
| 87 CYG_CHECK_DATA_PTR( ptr, "Bad pointer" ); | |
| 88 return ptr; | |
| 89 } | |
| 90 | |
| 91 // ------------------------------------------------------------------------- | |
| 92 | |
| 93 #ifdef CYGDBG_USE_ASSERTS | |
| 94 | |
| 95 #define CYG_ASSERT_SIZES(cstruct, cxxstruct) \ | |
| 96 CYG_MACRO_START \ | |
| 97 char *msg = "Size of C struct " #cstruct \ | |
| 98 " != size of C++ struct " #cxxstruct ; \ | |
| 99 CYG_ASSERT( sizeof(cstruct) == sizeof(cxxstruct) , msg ); \ | |
| 100 CYG_MACRO_END | |
| 101 | |
| 102 #else | |
| 103 | |
| 104 #define CYG_ASSERT_SIZES(cstruct, cxxstruct) | |
| 105 | |
| 106 #endif | |
| 107 | |
| 108 /*---------------------------------------------------------------------------*/ | |
| 109 /* Scheduler operations */ | |
| 110 | |
| 111 /* Starts scheduler with created threads. Never returns. */ | |
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112 externC void cyg_scheduler_start(void) __THROW |
| 0 | 113 { |
| 114 Cyg_Scheduler::start(); | |
| 115 } | |
| 116 | |
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117 /* Lock the scheduler. */ |
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118 externC void cyg_scheduler_lock(void) __THROW |
| 0 | 119 { |
| 120 Cyg_Scheduler::lock(); | |
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121 // get_sched_lock() is unsigned, see below "cyg_ucount32 lock" |
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122 CYG_ASSERT( (0xff000000 & (Cyg_Scheduler::get_sched_lock())) == 0, |
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123 "Scheduler overlocked" ); |
| 0 | 124 } |
| 125 | |
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126 /* Lock the scheduler, but never more than level=1. */ |
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127 externC void cyg_scheduler_safe_lock(void) __THROW |
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128 { |
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129 Cyg_Scheduler::lock(); |
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130 cyg_ucount32 slock = Cyg_Scheduler::get_sched_lock(); |
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131 if (slock > 1) |
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132 Cyg_Scheduler::unlock(); |
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133 // get_sched_lock() is unsigned, see below "cyg_ucount32 lock" |
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134 CYG_ASSERT( (0xff000000 & (Cyg_Scheduler::get_sched_lock())) == 0, |
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135 "Scheduler overlocked" ); |
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136 } |
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137 |
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138 /* Unlock the scheduler. */ |
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139 externC void cyg_scheduler_unlock(void) __THROW |
| 0 | 140 { |
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141 cyg_ucount32 slock = Cyg_Scheduler::get_sched_lock(); |
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142 CYG_ASSERT( 0 < slock, "Scheduler not locked" ); |
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143 // And program defensively too: |
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144 if ( 0 < slock ) |
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145 Cyg_Scheduler::unlock(); |
| 0 | 146 } |
| 147 | |
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148 /* Read the scheduler lock value. */ |
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149 externC cyg_ucount32 cyg_scheduler_read_lock(void) __THROW |
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150 { |
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151 cyg_ucount32 slock = Cyg_Scheduler::get_sched_lock(); |
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152 return slock; |
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153 } |
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154 |
| 0 | 155 /*---------------------------------------------------------------------------*/ |
| 156 /* Thread operations */ | |
| 157 | |
| 158 externC void cyg_thread_create( | |
| 2 | 159 cyg_addrword_t sched_info, /* scheduling info (eg pri) */ |
| 0 | 160 cyg_thread_entry_t *entry, /* entry point function */ |
| 2 | 161 cyg_addrword_t entry_data, /* entry data */ |
| 0 | 162 char *name, /* optional thread name */ |
| 163 void *stack_base, /* stack base, NULL = alloc */ | |
| 164 cyg_ucount32 stack_size, /* stack size, 0 = default */ | |
| 165 cyg_handle_t *handle, /* returned thread handle */ | |
| 166 cyg_thread *thread /* put thread here */ | |
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167 ) __THROW |
| 0 | 168 { |
| 169 CYG_ASSERT_SIZES( cyg_thread, Cyg_Thread ); | |
| 170 | |
| 171 Cyg_Thread *t = new((void *)thread) Cyg_Thread ( | |
| 172 (CYG_ADDRWORD) sched_info, | |
| 173 (cyg_thread_entry *)entry, | |
| 174 (CYG_ADDRWORD) entry_data, | |
| 175 name, | |
| 2 | 176 (CYG_ADDRWORD) stack_base, |
| 177 stack_size | |
| 0 | 178 ); |
| 179 t=t; | |
| 180 | |
| 181 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 182 *handle = (cyg_handle_t)thread; | |
| 183 } | |
| 184 | |
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185 externC void cyg_thread_exit() __THROW |
| 0 | 186 { |
| 187 Cyg_Thread::exit(); | |
| 188 } | |
| 189 | |
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190 externC cyg_bool_t cyg_thread_delete( cyg_handle_t thread ) __THROW |
| 2 | 191 { |
| 192 Cyg_Thread *th = (Cyg_Thread *)thread; | |
| 193 if( th->get_state() != Cyg_Thread::EXITED ) | |
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194 th->kill(); // encourage it to terminate |
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195 if( th->get_state() != Cyg_Thread::EXITED ) |
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196 return false; // it didn't run yet, leave it up to the app to fix |
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197 th->~Cyg_Thread(); |
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198 return true; |
| 2 | 199 } |
| 200 | |
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201 externC void cyg_thread_suspend(cyg_handle_t thread) __THROW |
| 0 | 202 { |
| 203 ((Cyg_Thread *)thread)->suspend(); | |
| 204 } | |
| 205 | |
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206 externC void cyg_thread_resume(cyg_handle_t thread) __THROW |
| 0 | 207 { |
| 208 Cyg_Thread *th = (Cyg_Thread *)thread; | |
| 209 | |
| 210 // If we are resuming an exited thread then | |
| 211 // reinitialize it. | |
| 212 | |
| 213 if( th->get_state() == Cyg_Thread::EXITED ) | |
| 214 th->reinitialize(); | |
| 215 | |
| 216 th->resume(); | |
| 217 } | |
| 218 | |
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219 externC void cyg_thread_kill( cyg_handle_t thread) __THROW |
| 0 | 220 { |
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221 ((Cyg_Thread *)thread)->kill(); |
| 0 | 222 } |
| 223 | |
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224 externC void cyg_thread_release( cyg_handle_t thread) __THROW |
| 2 | 225 { |
| 226 ((Cyg_Thread *)thread)->release(); | |
| 227 } | |
| 228 | |
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229 externC void cyg_thread_yield() __THROW |
| 0 | 230 { |
| 231 Cyg_Thread::yield(); | |
| 232 } | |
| 233 | |
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234 externC cyg_handle_t cyg_thread_self() __THROW |
| 0 | 235 { |
| 236 return (cyg_handle_t)Cyg_Thread::self(); | |
| 237 } | |
| 238 | |
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239 externC cyg_uint16 cyg_thread_get_id( cyg_handle_t thread) __THROW |
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240 { |
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241 return ((Cyg_Thread *)thread)->get_unique_id(); |
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242 } |
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243 |
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244 // idle thread is not really a plain CygThread; danger. |
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245 externC cyg_handle_t cyg_thread_idle_thread() __THROW |
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246 { |
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247 extern Cyg_Thread idle_thread; |
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248 return (cyg_handle_t)&idle_thread; |
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249 } |
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250 |
| 0 | 251 /* Priority manipulation */ |
| 252 externC void cyg_thread_set_priority( | |
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253 cyg_handle_t thread, cyg_priority_t priority ) __THROW |
| 0 | 254 { |
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255 #ifdef CYGIMP_THREAD_PRIORITY |
| 0 | 256 ((Cyg_Thread *)thread)->set_priority(priority); |
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257 #endif |
| 0 | 258 } |
| 259 | |
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260 |
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261 /* Get the normal priority, ie without any applied mutex inheritance or |
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262 * ceiling protocol. */ |
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263 externC cyg_priority_t cyg_thread_get_priority(cyg_handle_t thread) __THROW |
| 0 | 264 { |
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265 #ifdef CYGIMP_THREAD_PRIORITY |
| 0 | 266 return ((Cyg_Thread *)thread)->get_priority(); |
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267 #else |
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268 return 0; |
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269 #endif |
| 0 | 270 } |
| 271 | |
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272 |
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273 /* Get the current priority, ie any applied mutex inheritance or |
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274 * ceiling protocol. */ |
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275 externC cyg_priority_t cyg_thread_get_current_priority(cyg_handle_t thread) __THROW |
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276 { |
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277 #ifdef CYGIMP_THREAD_PRIORITY |
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278 return ((Cyg_Thread *)thread)->get_current_priority(); |
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279 #else |
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280 return 0; |
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281 #endif |
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282 } |
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283 |
| 0 | 284 /* Deadline scheduling control (optional) */ |
| 285 | |
| 286 externC void cyg_thread_deadline_wait( | |
| 287 cyg_tick_count_t start_time, /* abs earliest start time */ | |
| 288 cyg_tick_count_t run_time, /* worst case execution time */ | |
| 289 cyg_tick_count_t deadline /* absolute deadline */ | |
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290 ) __THROW |
| 0 | 291 { |
| 292 CYG_ASSERT(0,"Not implemented"); | |
| 293 } | |
| 294 | |
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295 externC void cyg_thread_delay(cyg_tick_count_t delay) __THROW |
| 0 | 296 { |
| 297 Cyg_Thread::self()->delay(delay); | |
| 298 } | |
| 299 | |
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300 /* Stack information */ |
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301 externC cyg_addrword_t cyg_thread_get_stack_base(cyg_handle_t thread) __THROW |
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302 { |
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303 return ((Cyg_Thread *)thread)->get_stack_base(); |
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304 } |
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305 |
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306 externC cyg_uint32 cyg_thread_get_stack_size(cyg_handle_t thread) __THROW |
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307 { |
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308 return ((Cyg_Thread *)thread)->get_stack_size(); |
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309 } |
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310 |
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311 #ifdef CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT |
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312 externC cyg_uint32 cyg_thread_measure_stack_usage(cyg_handle_t thread) __THROW |
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313 { |
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314 return ((Cyg_Thread *)thread)->measure_stack_usage(); |
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315 } |
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316 #endif |
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317 |
| 2 | 318 /*---------------------------------------------------------------------------*/ |
| 460 | 319 /* Thread enumeration and information */ |
| 320 | |
| 321 #ifdef CYGVAR_KERNEL_THREADS_LIST | |
| 322 | |
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323 cyg_bool_t cyg_thread_get_next( cyg_handle_t *current, cyg_uint16 *id ) __THROW |
| 460 | 324 { |
| 325 cyg_bool_t result = true; | |
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326 |
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327 // There is a minute but finite chance that the thread could have |
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328 // exitted since the previous cyg_thread_get_next() call, and we can't |
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329 // detect the ID mismatch further down. So be quite zealous with checking. |
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330 |
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331 CYG_CHECK_DATA_PTRC( current ); |
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332 CYG_CHECK_DATA_PTRC( id ); |
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333 if ( *current != 0 ) |
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334 CYG_CHECK_DATA_PTRC( *current ); |
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335 |
| 460 | 336 Cyg_Scheduler::lock(); |
| 337 | |
| 338 Cyg_Thread *thread = (Cyg_Thread *)*current; | |
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339 CYG_ASSERT_ZERO_OR_CLASSC( thread ); |
| 460 | 340 if( *current == 0 ) |
| 341 { | |
| 342 thread = Cyg_Thread::get_list_head(); | |
| 343 *current = (cyg_handle_t)thread; | |
| 344 *id = thread->get_unique_id(); | |
| 345 } | |
| 346 else if( (thread->get_unique_id() == *id) && | |
| 347 (thread = thread->get_list_next()) != NULL ) | |
| 348 { | |
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349 CYG_CHECK_DATA_PTRC( thread ); |
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350 CYG_ASSERT_CLASSC( thread ); |
| 460 | 351 *current = (cyg_handle_t)thread; |
| 352 *id = thread->get_unique_id(); | |
| 353 } | |
| 354 else | |
| 355 { | |
| 356 *current = 0; | |
| 357 *id = 0; | |
| 358 result = false; | |
| 359 } | |
| 360 | |
| 361 Cyg_Scheduler::unlock(); | |
| 362 | |
| 363 return result; | |
| 364 } | |
| 365 | |
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366 cyg_handle_t cyg_thread_find( cyg_uint16 id ) __THROW |
| 460 | 367 { |
| 368 Cyg_Scheduler::lock(); | |
| 369 | |
| 370 Cyg_Thread *thread = Cyg_Thread::get_list_head(); | |
| 371 | |
| 372 while( thread != NULL ) | |
| 373 { | |
| 374 if( thread->get_unique_id() == id ) | |
| 375 break; | |
| 376 | |
| 377 thread = thread->get_list_next(); | |
| 378 } | |
| 379 | |
| 380 Cyg_Scheduler::unlock(); | |
| 381 | |
| 382 return (cyg_handle_t)thread; | |
| 383 } | |
| 384 | |
| 385 #endif | |
| 386 | |
| 387 cyg_bool_t cyg_thread_get_info( cyg_handle_t threadh, | |
| 388 cyg_uint16 id, | |
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389 cyg_thread_info *info ) __THROW |
| 460 | 390 { |
| 391 cyg_bool_t result = true; | |
| 392 Cyg_Thread *thread = (Cyg_Thread *)threadh; | |
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393 CYG_CHECK_DATA_PTRC( thread ); |
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394 if ( NULL != info ) |
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395 CYG_CHECK_DATA_PTRC( info ); |
| 460 | 396 |
| 397 Cyg_Scheduler::lock(); | |
| 398 | |
| 399 if( thread->get_unique_id() == id && info != NULL ) | |
| 400 { | |
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401 CYG_ASSERT_CLASSC( thread ); |
| 460 | 402 info->handle = threadh; |
| 403 info->id = id; | |
| 404 info->state = thread->get_state(); | |
| 405 #ifdef CYGVAR_KERNEL_THREADS_NAME | |
| 406 info->name = thread->get_name(); | |
| 407 #else | |
| 408 info->name = NULL; | |
| 409 #endif | |
| 410 info->set_pri = thread->get_priority(); | |
| 411 info->cur_pri = thread->get_current_priority(); | |
| 412 info->stack_base = thread->get_stack_base(); | |
| 413 info->stack_size = thread->get_stack_size(); | |
| 414 | |
| 415 #ifdef CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT | |
| 416 info->stack_used = thread->measure_stack_usage(); | |
| 417 #else | |
| 418 info->stack_used = 0; | |
| 419 #endif | |
| 420 } | |
| 421 else result = false; | |
| 422 | |
| 423 Cyg_Scheduler::unlock(); | |
| 424 | |
| 425 return result; | |
| 426 } | |
| 427 | |
| 428 /*---------------------------------------------------------------------------*/ | |
| 2 | 429 /* Per-thread data */ |
| 430 | |
| 431 #ifdef CYGVAR_KERNEL_THREADS_DATA | |
| 432 | |
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433 externC cyg_ucount32 cyg_thread_new_data_index() __THROW |
| 2 | 434 { |
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435 Cyg_Thread::cyg_data_index index = Cyg_Thread::new_data_index(); |
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436 CYG_ASSERT(index >= 0, "failed to allocate data index" ); |
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437 return index; |
| 2 | 438 } |
| 439 | |
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440 externC void cyg_thread_free_data_index(cyg_ucount32 index) __THROW |
| 2 | 441 { |
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442 Cyg_Thread::free_data_index(index); |
| 2 | 443 } |
| 444 | |
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445 externC CYG_ADDRWORD cyg_thread_get_data(cyg_ucount32 index) __THROW |
| 2 | 446 { |
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447 return Cyg_Thread::get_data(index); |
| 2 | 448 } |
| 449 | |
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450 externC CYG_ADDRWORD *cyg_thread_get_data_ptr(cyg_ucount32 index) __THROW |
| 2 | 451 { |
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452 return Cyg_Thread::get_data_ptr(index); |
| 2 | 453 } |
| 454 | |
| 455 externC void cyg_thread_set_data(cyg_ucount32 index, CYG_ADDRWORD | |
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456 data) __THROW |
| 2 | 457 { |
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458 Cyg_Thread::self()->set_data(index, data); |
| 2 | 459 } |
| 460 #endif | |
| 0 | 461 |
| 462 /*---------------------------------------------------------------------------*/ | |
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463 /* Thread destructors */ |
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464 |
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465 #ifdef CYGPKG_KERNEL_THREADS_DESTRUCTORS |
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466 __externC cyg_bool_t |
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467 cyg_thread_add_destructor( cyg_thread_destructor_fn fn, |
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468 cyg_addrword_t data ) __THROW |
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469 { |
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470 return Cyg_Thread::self()->add_destructor( fn, data ); |
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471 } |
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472 |
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473 __externC cyg_bool_t |
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474 cyg_thread_rem_destructor( cyg_thread_destructor_fn fn, |
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475 cyg_addrword_t data ) __THROW |
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476 { |
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477 return Cyg_Thread::self()->rem_destructor( fn, data ); |
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478 } |
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479 #endif |
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480 |
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481 /*---------------------------------------------------------------------------*/ |
| 0 | 482 /* Exception handling. */ |
| 483 | |
| 484 #ifdef CYGPKG_KERNEL_EXCEPTIONS | |
| 485 externC void cyg_exception_set_handler( | |
| 486 cyg_code_t exception_number, | |
| 487 cyg_exception_handler_t *new_handler, | |
| 2 | 488 cyg_addrword_t new_data, |
| 0 | 489 cyg_exception_handler_t **old_handler, |
| 2 | 490 cyg_addrword_t *old_data |
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491 ) __THROW |
| 0 | 492 { |
| 493 Cyg_Thread::register_exception( | |
| 494 exception_number, | |
| 495 (cyg_exception_handler *)new_handler, | |
| 496 (CYG_ADDRWORD)new_data, | |
| 497 (cyg_exception_handler **)old_handler, | |
| 498 (CYG_ADDRWORD *)old_data | |
| 499 ); | |
| 500 } | |
| 501 | |
| 502 /* Clear exception handler to default */ | |
| 503 externC void cyg_exception_clear_handler( | |
| 504 cyg_code_t exception_number | |
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505 ) __THROW |
| 0 | 506 { |
| 507 Cyg_Thread::deregister_exception( exception_number ); | |
| 508 } | |
| 509 | |
| 510 /* Invoke exception handler */ | |
| 511 externC void cyg_exception_call_handler( | |
| 512 cyg_handle_t thread, | |
| 513 cyg_code_t exception_number, | |
| 2 | 514 cyg_addrword_t error_code |
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515 ) __THROW |
| 0 | 516 { |
| 517 Cyg_Thread *t = (Cyg_Thread *)thread; | |
| 518 | |
| 519 t->deliver_exception( exception_number, error_code ); | |
| 520 } | |
| 521 #endif | |
| 522 | |
| 523 /*---------------------------------------------------------------------------*/ | |
| 524 /* Interrupt handling */ | |
| 525 | |
| 526 externC void cyg_interrupt_create( | |
| 527 cyg_vector_t vector, /* Vector to attach to */ | |
| 528 cyg_priority_t priority, /* Queue priority */ | |
| 2 | 529 cyg_addrword_t data, /* Data pointer */ |
| 0 | 530 cyg_ISR_t *isr, /* Interrupt Service Routine */ |
| 531 cyg_DSR_t *dsr, /* Deferred Service Routine */ | |
| 532 cyg_handle_t *handle, /* returned handle */ | |
| 533 cyg_interrupt *intr /* put interrupt here */ | |
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534 ) __THROW |
| 0 | 535 { |
| 536 CYG_ASSERT_SIZES( cyg_interrupt, Cyg_Interrupt ); | |
| 537 | |
| 538 Cyg_Interrupt *t = new((void *)intr) Cyg_Interrupt ( | |
| 539 (cyg_vector)vector, | |
| 540 (cyg_priority)priority, | |
| 541 (CYG_ADDRWORD)data, | |
| 542 (cyg_ISR *)isr, | |
| 543 (cyg_DSR *)dsr ); | |
| 544 t=t; | |
| 545 | |
| 546 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 547 *handle = (cyg_handle_t)intr; | |
| 548 } | |
| 549 | |
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550 externC void cyg_interrupt_delete( cyg_handle_t interrupt) __THROW |
| 0 | 551 { |
| 552 ((Cyg_Interrupt *)interrupt)->~Cyg_Interrupt(); | |
| 553 } | |
| 554 | |
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555 void cyg_interrupt_attach( cyg_handle_t interrupt ) __THROW |
| 0 | 556 { |
| 557 ((Cyg_Interrupt *)interrupt)->attach(); | |
| 558 } | |
| 559 | |
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560 void cyg_interrupt_detach( cyg_handle_t interrupt ) __THROW |
| 0 | 561 { |
| 562 ((Cyg_Interrupt *)interrupt)->detach(); | |
| 563 } | |
| 564 | |
| 565 /* VSR manipulation */ | |
| 566 | |
| 567 externC void cyg_interrupt_get_vsr( | |
| 568 cyg_vector_t vector, /* vector to get */ | |
| 569 cyg_VSR_t **vsr /* vsr got */ | |
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570 ) __THROW |
| 0 | 571 { |
| 572 Cyg_Interrupt::get_vsr( (cyg_vector)vector, (cyg_VSR **)vsr); | |
| 573 } | |
| 574 | |
| 575 externC void cyg_interrupt_set_vsr( | |
| 576 cyg_vector_t vector, /* vector to set */ | |
| 577 cyg_VSR_t *vsr /* vsr to set */ | |
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578 ) __THROW |
| 0 | 579 { |
| 580 Cyg_Interrupt::set_vsr( (cyg_vector)vector, (cyg_VSR *)vsr); | |
| 581 } | |
| 582 | |
| 583 /* CPU level interrupt mask */ | |
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584 externC void cyg_interrupt_disable() __THROW |
| 0 | 585 { |
| 586 Cyg_Interrupt::disable_interrupts(); | |
| 587 } | |
| 588 | |
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589 externC void cyg_interrupt_enable() __THROW |
| 0 | 590 { |
| 591 Cyg_Interrupt::enable_interrupts(); | |
| 592 } | |
| 593 | |
| 594 /* Interrupt controller access */ | |
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595 externC void cyg_interrupt_mask(cyg_vector_t vector) __THROW |
| 0 | 596 { |
| 597 Cyg_Interrupt::mask_interrupt( (cyg_vector)vector); | |
| 598 } | |
| 599 | |
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600 externC void cyg_interrupt_mask_intunsafe(cyg_vector_t vector) __THROW |
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601 { |
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602 Cyg_Interrupt::mask_interrupt_intunsafe( (cyg_vector)vector); |
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603 } |
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604 |
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605 externC void cyg_interrupt_unmask(cyg_vector_t vector) __THROW |
| 0 | 606 { |
| 607 Cyg_Interrupt::unmask_interrupt( (cyg_vector)vector); | |
| 608 } | |
| 609 | |
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610 externC void cyg_interrupt_unmask_intunsafe(cyg_vector_t vector) __THROW |
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611 { |
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612 Cyg_Interrupt::unmask_interrupt_intunsafe( (cyg_vector)vector); |
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613 } |
| 0 | 614 |
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615 externC void cyg_interrupt_acknowledge(cyg_vector_t vector) __THROW |
| 0 | 616 { |
| 617 Cyg_Interrupt::acknowledge_interrupt( (cyg_vector)vector); | |
| 618 } | |
| 619 | |
| 620 | |
| 621 externC void cyg_interrupt_configure( | |
| 622 cyg_vector_t vector, /* vector to configure */ | |
| 623 cyg_bool_t level, /* level or edge triggered */ | |
| 624 cyg_bool_t up /* rising/faling edge, high/low level*/ | |
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625 ) __THROW |
| 0 | 626 { |
| 627 Cyg_Interrupt::configure_interrupt( (cyg_vector)vector, level, up ); | |
| 628 } | |
| 629 | |
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630 externC void cyg_interrupt_set_cpu( |
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631 cyg_vector_t vector, /* vector to control */ |
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632 cyg_cpu_t cpu /* CPU to set */ |
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633 ) __THROW |
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634 { |
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635 #ifdef CYGPKG_KERNEL_SMP_SUPPORT |
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636 Cyg_Interrupt::set_cpu( vector, cpu ); |
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637 #endif |
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638 } |
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639 |
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640 externC cyg_cpu_t cyg_interrupt_get_cpu( |
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641 cyg_vector_t vector /* vector to control */ |
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642 ) __THROW |
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643 { |
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644 #ifdef CYGPKG_KERNEL_SMP_SUPPORT |
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645 return Cyg_Interrupt::get_cpu( vector ); |
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646 #else |
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647 return CYG_KERNEL_CPU_THIS(); |
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648 #endif |
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649 |
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650 } |
| 0 | 651 |
| 652 /*---------------------------------------------------------------------------*/ | |
| 653 /* Counters, Clocks and Alarms */ | |
| 654 | |
| 655 externC void cyg_counter_create( | |
| 656 cyg_handle_t *handle, /* returned counter handle */ | |
| 657 cyg_counter *counter /* put counter here */ | |
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658 ) __THROW |
| 0 | 659 { |
| 660 CYG_ASSERT_SIZES( cyg_counter, Cyg_Counter ); | |
| 661 | |
| 662 Cyg_Counter *t = new((void *)counter) Cyg_Counter (); | |
| 663 t=t; | |
| 664 | |
| 665 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 666 *handle = (cyg_handle_t)counter; | |
| 667 } | |
| 668 | |
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669 externC void cyg_counter_delete(cyg_handle_t counter) __THROW |
| 0 | 670 { |
| 671 ((Cyg_Counter *)counter)->~Cyg_Counter(); | |
| 672 } | |
| 673 | |
| 674 /* Return current value of counter */ | |
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675 externC cyg_tick_count_t cyg_counter_current_value(cyg_handle_t counter) __THROW |
| 0 | 676 { |
| 677 return ((Cyg_Counter *)counter)->current_value(); | |
| 678 } | |
| 679 | |
| 680 /* Set new current value */ | |
| 681 externC void cyg_counter_set_value( | |
| 682 cyg_handle_t counter, | |
| 683 cyg_tick_count_t new_value | |
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684 ) __THROW |
| 0 | 685 { |
| 686 ((Cyg_Counter *)counter)->set_value( new_value ); | |
| 687 } | |
| 688 | |
| 689 /* Advance counter by one tick */ | |
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690 externC void cyg_counter_tick(cyg_handle_t counter) __THROW |
| 0 | 691 { |
| 692 ((Cyg_Counter *)counter)->tick(); | |
| 693 } | |
| 694 | |
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695 /* Advance counter by multiple ticks */ |
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696 externC void cyg_counter_multi_tick(cyg_handle_t counter, cyg_tick_count_t ticks) __THROW |
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697 { |
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698 ((Cyg_Counter *)counter)->tick(ticks); |
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699 } |
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700 |
| 0 | 701 /* Create a clock object */ |
| 702 externC void cyg_clock_create( | |
| 703 cyg_resolution_t resolution, /* Initial resolution */ | |
| 704 cyg_handle_t *handle, /* Returned clock handle */ | |
| 705 cyg_clock *clock /* put clock here */ | |
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706 ) __THROW |
| 0 | 707 { |
| 708 CYG_ASSERT_SIZES( cyg_clock, Cyg_Clock ); | |
| 709 | |
| 710 Cyg_Clock::cyg_resolution res; | |
| 711 | |
| 712 res.dividend = resolution.dividend; | |
| 713 res.divisor = resolution.divisor; | |
| 714 | |
| 715 Cyg_Clock *t = new((void *)clock) Cyg_Clock ( res ); | |
| 716 t=t; | |
| 717 | |
| 718 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 719 *handle = (cyg_handle_t)clock; | |
| 720 } | |
| 721 | |
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722 externC void cyg_clock_delete(cyg_handle_t clock) __THROW |
| 0 | 723 { |
| 724 ((Cyg_Clock *)clock)->~Cyg_Clock(); | |
| 725 } | |
| 726 | |
| 727 /* convert a clock handle to a counter handle so we can use the */ | |
| 728 /* counter API on it. */ | |
| 729 externC void cyg_clock_to_counter( | |
| 730 cyg_handle_t clock, | |
| 731 cyg_handle_t *counter | |
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732 ) __THROW |
| 0 | 733 { |
| 734 CYG_CHECK_DATA_PTR( counter, "Bad counter handle pointer" ); | |
| 735 *counter = (cyg_handle_t)(Cyg_Counter *)clock; | |
| 736 } | |
| 737 | |
| 738 externC void cyg_clock_set_resolution( | |
| 739 cyg_handle_t clock, | |
| 740 cyg_resolution_t resolution /* New resolution */ | |
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741 ) __THROW |
| 0 | 742 { |
| 743 Cyg_Clock::cyg_resolution res; | |
| 744 | |
| 745 res.dividend = resolution.dividend; | |
| 746 res.divisor = resolution.divisor; | |
| 747 | |
| 748 ((Cyg_Clock *)clock)->set_resolution( res ); | |
| 749 } | |
| 750 | |
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751 externC cyg_resolution_t cyg_clock_get_resolution(cyg_handle_t clock) __THROW |
| 0 | 752 { |
| 753 Cyg_Clock::cyg_resolution res = | |
| 754 ((Cyg_Clock *)clock)->get_resolution(); | |
| 755 | |
| 756 cyg_resolution_t resolution; | |
| 757 | |
| 758 resolution.dividend = res.dividend; | |
| 759 resolution.divisor = res.divisor; | |
| 760 | |
| 761 return resolution; | |
| 762 } | |
| 763 | |
| 764 #ifdef CYGVAR_KERNEL_COUNTERS_CLOCK | |
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765 externC cyg_handle_t cyg_real_time_clock(void) __THROW |
| 0 | 766 { |
| 767 return (cyg_handle_t)Cyg_Clock::real_time_clock; | |
| 768 } | |
| 769 | |
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770 externC cyg_tick_count_t cyg_current_time(void) __THROW |
| 0 | 771 { |
| 772 return Cyg_Clock::real_time_clock->current_value(); | |
| 773 } | |
| 774 #endif | |
| 775 | |
| 776 externC void cyg_alarm_create( | |
| 777 cyg_handle_t counter, /* Attached to this counter */ | |
| 778 cyg_alarm_t *alarmfn, /* Call-back function */ | |
| 2 | 779 cyg_addrword_t data, /* Call-back data */ |
| 0 | 780 cyg_handle_t *handle, /* Returned alarm object */ |
| 781 cyg_alarm *alarm /* put alarm here */ | |
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782 ) __THROW |
| 0 | 783 { |
| 784 CYG_ASSERT_SIZES( cyg_alarm, Cyg_Alarm ); | |
| 785 | |
| 786 Cyg_Alarm *t = new((void *)alarm) Cyg_Alarm ( | |
| 787 (Cyg_Counter *)counter, | |
| 2 | 788 (cyg_alarm_fn *)alarmfn, |
| 789 (CYG_ADDRWORD)data | |
| 0 | 790 ); |
| 791 t=t; | |
| 792 | |
| 793 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 794 *handle = (cyg_handle_t)alarm; | |
| 795 } | |
| 796 | |
| 797 /* Disable alarm, detach from counter and invalidate handles */ | |
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798 externC void cyg_alarm_delete( cyg_handle_t alarm) __THROW |
| 0 | 799 { |
| 800 ((Cyg_Alarm *)alarm)->~Cyg_Alarm(); | |
| 801 } | |
| 802 | |
| 803 externC void cyg_alarm_initialize( | |
| 804 cyg_handle_t alarm, | |
| 805 cyg_tick_count_t trigger, /* Absolute trigger time */ | |
| 806 cyg_tick_count_t interval /* Relative retrigger interval */ | |
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807 ) __THROW |
| 0 | 808 { |
| 809 ((Cyg_Alarm *)alarm)->initialize( | |
| 2 | 810 (cyg_tick_count)trigger, |
| 811 (cyg_tick_count)interval); | |
| 0 | 812 } |
| 813 | |
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814 externC void cyg_alarm_get_times( |
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815 cyg_handle_t alarm, |
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816 cyg_tick_count_t *trigger, /* Next trigger time */ |
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817 cyg_tick_count_t *interval /* Current interval */ |
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818 ) __THROW |
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819 { |
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820 ((Cyg_Alarm *)alarm)->get_times( |
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821 (cyg_tick_count*)trigger, |
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822 (cyg_tick_count*)interval); |
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823 } |
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824 |
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825 externC void cyg_alarm_enable( cyg_handle_t alarm ) __THROW |
| 0 | 826 { |
| 827 ((Cyg_Alarm *)alarm)->enable(); | |
| 828 } | |
| 829 | |
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830 externC void cyg_alarm_disable( cyg_handle_t alarm ) __THROW |
| 0 | 831 { |
| 832 ((Cyg_Alarm *)alarm)->disable(); | |
| 833 } | |
| 834 | |
| 835 /*---------------------------------------------------------------------------*/ | |
| 836 /* Mail boxes */ | |
| 837 | |
| 838 externC void cyg_mbox_create( | |
| 839 cyg_handle_t *handle, | |
| 840 cyg_mbox *mbox | |
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841 ) __THROW |
| 0 | 842 { |
| 843 CYG_ASSERT_SIZES( cyg_mbox, Cyg_Mbox ); | |
| 844 | |
| 845 Cyg_Mbox *t = new((void *)mbox) Cyg_Mbox(); | |
| 846 t=t; | |
| 847 | |
| 848 CYG_CHECK_DATA_PTR( handle, "Bad handle pointer" ); | |
| 849 *handle = (cyg_handle_t)mbox; | |
| 850 } | |
| 851 | |
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852 externC void cyg_mbox_delete(cyg_handle_t mbox) __THROW |
| 0 | 853 { |
| 854 ((Cyg_Mbox *)mbox)->~Cyg_Mbox(); | |
| 855 } | |
| 856 | |
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857 externC void *cyg_mbox_get(cyg_handle_t mbox) __THROW |
| 0 | 858 { |
| 859 return ((Cyg_Mbox *)mbox)->get(); | |
| 860 } | |
| 861 | |
| 862 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 863 void *cyg_mbox_timed_get( | |
| 864 cyg_handle_t mbox, | |
| 865 cyg_tick_count_t abstime | |
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866 ) __THROW |
| 0 | 867 { |
| 868 return ((Cyg_Mbox *)mbox)->get(abstime); | |
| 869 } | |
| 870 #endif | |
| 871 | |
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872 externC void *cyg_mbox_tryget(cyg_handle_t mbox) __THROW |
| 0 | 873 { |
| 874 return ((Cyg_Mbox *)mbox)->tryget(); | |
| 875 } | |
| 876 | |
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877 externC void *cyg_mbox_peek_item(cyg_handle_t mbox) __THROW |
| 0 | 878 { |
| 879 return ((Cyg_Mbox *)mbox)->peek_item(); | |
| 880 } | |
| 881 | |
| 882 #ifdef CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT | |
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883 externC cyg_bool_t cyg_mbox_put(cyg_handle_t mbox, void *item) __THROW |
| 0 | 884 { |
| 885 return ((Cyg_Mbox *)mbox)->put(item); | |
| 886 } | |
| 887 | |
| 888 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 889 externC cyg_bool_t cyg_mbox_timed_put( | |
| 890 cyg_handle_t mbox, | |
| 891 void *item, | |
| 892 cyg_tick_count_t abstime | |
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893 ) __THROW |
| 0 | 894 { |
| 895 return ((Cyg_Mbox *)mbox)->put(item, abstime); | |
| 896 } | |
| 897 #endif | |
| 898 #endif | |
| 899 | |
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900 externC cyg_bool_t cyg_mbox_tryput(cyg_handle_t mbox, void *item) __THROW |
| 0 | 901 { |
| 902 return ((Cyg_Mbox *)mbox)->tryput(item); | |
| 903 } | |
| 904 | |
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905 externC cyg_count32 cyg_mbox_peek(cyg_handle_t mbox) __THROW |
| 0 | 906 { |
| 907 return ((Cyg_Mbox *)mbox)->peek(); | |
| 908 } | |
| 909 | |
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910 externC cyg_bool_t cyg_mbox_waiting_to_get(cyg_handle_t mbox) __THROW |
| 0 | 911 { |
| 912 return ((Cyg_Mbox *)mbox)->waiting_to_get(); | |
| 913 } | |
| 914 | |
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915 externC cyg_bool_t cyg_mbox_waiting_to_put(cyg_handle_t mbox) __THROW |
| 0 | 916 { |
| 917 return ((Cyg_Mbox *)mbox)->waiting_to_put(); | |
| 918 } | |
| 919 | |
| 920 | |
| 921 /*---------------------------------------------------------------------------*/ | |
| 922 /* Semaphores */ | |
| 923 | |
| 924 externC void cyg_semaphore_init( | |
| 925 cyg_sem_t *sem, /* Semaphore to init */ | |
| 2 | 926 cyg_count32 val /* Initial semaphore value */ |
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927 ) __THROW |
| 0 | 928 { |
| 929 CYG_ASSERT_SIZES( cyg_sem_t, Cyg_Counting_Semaphore ); | |
| 930 | |
| 931 Cyg_Counting_Semaphore *t = new((void *)sem) Cyg_Counting_Semaphore(val); | |
| 932 t=t; | |
| 933 } | |
| 934 | |
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935 externC void cyg_semaphore_destroy( cyg_sem_t *sem ) __THROW |
| 0 | 936 { |
| 937 ((Cyg_Counting_Semaphore *)sem)->~Cyg_Counting_Semaphore(); | |
| 938 } | |
| 939 | |
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940 externC cyg_bool_t cyg_semaphore_wait( cyg_sem_t *sem ) __THROW |
| 0 | 941 { |
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942 return ((Cyg_Counting_Semaphore *)sem)->wait(); |
| 0 | 943 } |
| 944 | |
| 945 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 946 externC cyg_bool_t cyg_semaphore_timed_wait( | |
| 947 cyg_sem_t *sem, | |
| 948 cyg_tick_count_t abstime | |
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949 ) __THROW |
| 0 | 950 { |
| 951 return ((Cyg_Counting_Semaphore *)sem)->wait(abstime); | |
| 952 } | |
| 953 #endif | |
| 954 | |
| 955 | |
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956 externC int cyg_semaphore_trywait( cyg_sem_t *sem ) __THROW |
| 0 | 957 { |
| 958 return ((Cyg_Counting_Semaphore *)sem)->trywait(); | |
| 959 } | |
| 960 | |
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961 externC void cyg_semaphore_post( cyg_sem_t *sem ) __THROW |
| 0 | 962 { |
| 963 ((Cyg_Counting_Semaphore *)sem)->post(); | |
| 964 } | |
| 965 | |
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966 externC void cyg_semaphore_peek( cyg_sem_t *sem, cyg_count32 *val ) __THROW |
| 0 | 967 { |
| 968 CYG_CHECK_DATA_PTR( val, "Bad val parameter" ); | |
| 969 | |
| 970 *val = ((Cyg_Counting_Semaphore *)sem)->peek(); | |
| 971 } | |
| 972 | |
| 973 | |
| 974 /*---------------------------------------------------------------------------*/ | |
| 975 /* Flags */ | |
| 976 | |
| 977 void cyg_flag_init( | |
| 978 cyg_flag_t *flag /* Flag to init */ | |
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979 ) __THROW |
| 0 | 980 { |
| 981 CYG_ASSERT_SIZES( cyg_flag_t, Cyg_Flag ); | |
| 982 CYG_ASSERT( | |
| 983 ( Cyg_Flag::AND == CYG_FLAG_WAITMODE_AND ) && | |
| 984 ( Cyg_Flag::OR == CYG_FLAG_WAITMODE_OR ) && | |
| 985 ( Cyg_Flag::CLR == CYG_FLAG_WAITMODE_CLR ), | |
| 986 "CYG_FLAG_WAITMODE_xxx definition != C++ Cyg_Flag::xxx" ); | |
| 987 | |
| 988 Cyg_Flag *t = new((void *)flag) Cyg_Flag(); | |
| 989 t=t; | |
| 990 } | |
| 991 | |
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992 void cyg_flag_destroy( cyg_flag_t *flag ) __THROW |
| 0 | 993 { |
| 994 ((Cyg_Flag *)flag)->~Cyg_Flag(); | |
| 995 } | |
| 996 | |
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997 void cyg_flag_setbits( cyg_flag_t *flag, cyg_flag_value_t value) __THROW |
| 0 | 998 { |
| 999 ((Cyg_Flag *)flag)->setbits( value ); | |
| 1000 } | |
| 1001 | |
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1002 void cyg_flag_maskbits( cyg_flag_t *flag, cyg_flag_value_t value) __THROW |
| 0 | 1003 { |
| 1004 ((Cyg_Flag *)flag)->maskbits( value ); | |
| 1005 } | |
| 1006 | |
| 1007 cyg_flag_value_t cyg_flag_wait( cyg_flag_t *flag, | |
| 1008 cyg_flag_value_t pattern, | |
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1009 cyg_flag_mode_t mode ) __THROW |
| 0 | 1010 { |
| 1011 if ( 0 == pattern || 0 != (mode & ~3) ) | |
| 1012 return 0; | |
| 1013 return ((Cyg_Flag *)flag)->wait( pattern, mode ); | |
| 1014 | |
| 1015 } | |
| 1016 | |
| 1017 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 1018 cyg_flag_value_t cyg_flag_timed_wait( cyg_flag_t *flag, | |
| 1019 cyg_flag_value_t pattern, | |
| 1020 cyg_flag_mode_t mode, | |
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1021 cyg_tick_count_t abstime ) __THROW |
| 0 | 1022 { |
| 1023 if ( 0 == pattern || 0 != (mode & ~3) ) | |
| 1024 return 0; | |
| 1025 return ((Cyg_Flag *)flag)->wait( pattern, mode, abstime ); | |
| 1026 | |
| 1027 } | |
| 1028 #endif | |
| 1029 | |
| 1030 cyg_flag_value_t cyg_flag_poll( cyg_flag_t *flag, | |
| 1031 cyg_flag_value_t pattern, | |
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1032 cyg_flag_mode_t mode ) __THROW |
| 0 | 1033 { |
| 1034 if ( 0 == pattern || 0 != (mode & ~3) ) | |
| 1035 return 0; | |
| 1036 return ((Cyg_Flag *)flag)->poll( pattern, mode ); | |
| 1037 | |
| 1038 } | |
| 1039 | |
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1040 cyg_flag_value_t cyg_flag_peek( cyg_flag_t *flag ) __THROW |
| 0 | 1041 { |
| 1042 return ((Cyg_Flag *)flag)->peek(); | |
| 1043 } | |
| 1044 | |
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1045 cyg_bool_t cyg_flag_waiting( cyg_flag_t *flag ) __THROW |
| 0 | 1046 { |
| 1047 return ((Cyg_Flag *)flag)->waiting(); | |
| 1048 } | |
| 1049 | |
| 1050 /*---------------------------------------------------------------------------*/ | |
| 1051 /* Mutex */ | |
| 1052 | |
| 1053 externC void cyg_mutex_init( | |
| 1054 cyg_mutex_t *mutex /* Mutex to init */ | |
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1055 ) __THROW |
| 0 | 1056 { |
| 1057 CYG_ASSERT_SIZES( cyg_mutex_t, Cyg_Mutex ); | |
| 1058 | |
| 1059 Cyg_Mutex *m = new((void *)mutex) Cyg_Mutex; | |
| 1060 | |
| 1061 m=m; | |
| 1062 } | |
| 1063 | |
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1064 externC void cyg_mutex_destroy( cyg_mutex_t *mutex ) __THROW |
| 0 | 1065 { |
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1066 ((Cyg_Mutex *)mutex)->~Cyg_Mutex(); |
| 0 | 1067 } |
| 1068 | |
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1069 externC cyg_bool_t cyg_mutex_lock( cyg_mutex_t *mutex ) __THROW |
| 0 | 1070 { |
| 2 | 1071 return ((Cyg_Mutex *)mutex)->lock(); |
| 0 | 1072 } |
| 1073 | |
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1074 externC cyg_bool_t cyg_mutex_trylock( cyg_mutex_t *mutex ) __THROW |
| 0 | 1075 { |
| 1076 return ((Cyg_Mutex *)mutex)->trylock(); | |
| 1077 } | |
| 1078 | |
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1079 externC void cyg_mutex_unlock( cyg_mutex_t *mutex ) __THROW |
| 0 | 1080 { |
| 1081 ((Cyg_Mutex *)mutex)->unlock(); | |
| 1082 } | |
| 1083 | |
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1084 externC void cyg_mutex_release( cyg_mutex_t *mutex ) __THROW |
| 2 | 1085 { |
| 1086 ((Cyg_Mutex *)mutex)->release(); | |
| 1087 } | |
| 1088 | |
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1089 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_CEILING |
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1090 externC void cyg_mutex_set_ceiling( |
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1091 cyg_mutex_t *mutex, |
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1092 cyg_priority_t priority ) __THROW |
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1093 { |
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1094 ((Cyg_Mutex *)mutex)->set_ceiling(priority); |
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1095 } |
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1096 #endif |
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1097 |
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1098 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_DYNAMIC |
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1099 externC void cyg_mutex_set_protocol( |
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1100 cyg_mutex_t *mutex, |
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1101 enum cyg_mutex_protocol protocol ) __THROW |
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1102 { |
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1103 ((Cyg_Mutex *)mutex)->set_protocol((Cyg_Mutex::cyg_protcol)protocol); |
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1104 } |
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1105 #endif |
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1106 |
| 0 | 1107 /*---------------------------------------------------------------------------*/ |
| 1108 /* Condition Variables */ | |
| 1109 | |
| 1110 externC void cyg_cond_init( | |
| 1111 cyg_cond_t *cond, /* condition variable to init */ | |
| 1112 cyg_mutex_t *mutex /* associated mutex */ | |
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1113 ) __THROW |
| 0 | 1114 { |
| 1115 CYG_ASSERT_SIZES( cyg_cond_t, Cyg_Condition_Variable ); | |
| 1116 | |
| 1117 Cyg_Condition_Variable *t = new((void *)cond) Cyg_Condition_Variable( | |
| 1118 *(Cyg_Mutex *)mutex); | |
| 1119 t=t; | |
| 1120 } | |
| 1121 | |
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1122 externC void cyg_cond_destroy( cyg_cond_t *cond ) __THROW |
| 0 | 1123 { |
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1124 ((Cyg_Condition_Variable *)cond)->~Cyg_Condition_Variable(); |
| 0 | 1125 } |
| 1126 | |
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1127 externC cyg_bool_t cyg_cond_wait( cyg_cond_t *cond ) __THROW |
| 0 | 1128 { |
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1129 return ((Cyg_Condition_Variable *)cond)->wait(); |
| 0 | 1130 } |
| 1131 | |
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1132 externC void cyg_cond_signal( cyg_cond_t *cond ) __THROW |
| 0 | 1133 { |
| 1134 ((Cyg_Condition_Variable *)cond)->signal(); | |
| 1135 } | |
| 1136 | |
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1137 externC void cyg_cond_broadcast( cyg_cond_t *cond ) __THROW |
| 0 | 1138 { |
| 1139 ((Cyg_Condition_Variable *)cond)->broadcast(); | |
| 1140 } | |
| 1141 | |
| 1142 #ifdef CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT | |
| 1143 externC cyg_bool_t cyg_cond_timed_wait( | |
| 1144 cyg_cond_t *cond, | |
| 1145 cyg_tick_count_t abstime | |
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1146 ) __THROW |
| 0 | 1147 { |
| 1148 return ((Cyg_Condition_Variable *)cond)->wait(abstime); | |
| 1149 } | |
| 1150 | |
| 1151 #endif | |
| 1152 | |
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1153 /*---------------------------------------------------------------------------*/ |
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1154 /* Spinlocks */ |
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1155 |
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1156 externC void cyg_spinlock_init( |
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1157 cyg_spinlock_t *lock, /* spinlock to initialize */ |
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1158 cyg_bool_t locked /* init locked or unlocked */ |
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1159 ) __THROW |
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1160 { |
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1161 CYG_ASSERT_SIZES( cyg_spinlock_t, Cyg_SpinLock ); |
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1162 |
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1163 // Create the spinlock in cleared state |
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1164 Cyg_SpinLock *t = new((void *)lock) Cyg_SpinLock(); |
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1165 |
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1166 // If the lock is to start locked, then lock it now. |
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1167 if( locked ) |
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1168 t->spin(); |
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1169 } |
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1170 |
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1171 externC void cyg_spinlock_destroy( cyg_spinlock_t *lock ) __THROW |
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1172 { |
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1173 ((Cyg_SpinLock *)lock)->~Cyg_SpinLock(); |
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1174 } |
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1175 |
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1176 externC void cyg_spinlock_spin( cyg_spinlock_t *lock ) __THROW |
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1177 { |
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1178 ((Cyg_SpinLock *)lock)->spin(); |
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1179 } |
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1180 |
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1181 externC void cyg_spinlock_clear( cyg_spinlock_t *lock ) __THROW |
|
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1182 { |
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1183 ((Cyg_SpinLock *)lock)->clear(); |
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1184 } |
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1185 |
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1186 externC cyg_bool_t cyg_spinlock_try( cyg_spinlock_t *lock ) __THROW |
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1187 { |
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1188 return ((Cyg_SpinLock *)lock)->trylock(); |
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1189 } |
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1190 |
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1191 externC cyg_bool_t cyg_spinlock_test( cyg_spinlock_t *lock ) __THROW |
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1192 { |
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1193 return ((Cyg_SpinLock *)lock)->test(); |
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1194 } |
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1195 |
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1196 externC void cyg_spinlock_spin_intsave( cyg_spinlock_t *lock, |
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1197 cyg_addrword_t *istate ) __THROW |
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1198 { |
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1199 ((Cyg_SpinLock *)lock)->spin_intsave((CYG_INTERRUPT_STATE *)istate); |
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1200 } |
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1201 |
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1202 externC void cyg_spinlock_clear_intsave( cyg_spinlock_t *lock, |
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1203 cyg_addrword_t istate ) __THROW |
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1204 { |
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1205 ((Cyg_SpinLock *)lock)->clear_intsave((CYG_INTERRUPT_STATE)istate); |
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1206 } |
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1207 |
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1208 |
| 0 | 1209 // ------------------------------------------------------------------------- |
| 1210 // Check structure sizes. | |
| 1211 // This class and constructor get run automatically in debug versions | |
| 1212 // of the kernel and check that the structures configured in the C | |
| 1213 // code are the same size as the C++ classes they should match. | |
| 1214 | |
| 1215 #ifdef CYGPKG_INFRA_DEBUG | |
| 1216 | |
| 1217 class Cyg_Check_Structure_Sizes | |
| 1218 { | |
| 1219 int dummy; | |
| 1220 public: | |
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1221 Cyg_Check_Structure_Sizes( int x ) __THROW; |
| 0 | 1222 |
| 1223 }; | |
| 1224 | |
| 1225 #define CYG_CHECK_SIZES(cstruct, cxxstruct) \ | |
| 1226 if( sizeof(cstruct) != sizeof(cxxstruct) ) \ | |
| 1227 { \ | |
| 1228 char *fmt = "Size of C struct " #cstruct \ | |
| 1229 " != size of C++ struct " #cxxstruct ; \ | |
| 1230 CYG_TRACE2(1, fmt, sizeof(cstruct) , sizeof(cxxstruct) ); \ | |
| 1231 fail = true; \ | |
| 1232 fmt = fmt; \ | |
| 1233 } | |
| 1234 | |
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1235 Cyg_Check_Structure_Sizes::Cyg_Check_Structure_Sizes(int x) __THROW |
| 0 | 1236 { |
| 1237 cyg_bool fail = false; | |
| 1238 | |
| 1239 dummy = x+1; | |
| 1240 | |
| 1241 CYG_CHECK_SIZES( cyg_thread, Cyg_Thread ); | |
| 1242 CYG_CHECK_SIZES( cyg_interrupt, Cyg_Interrupt ); | |
| 1243 CYG_CHECK_SIZES( cyg_counter, Cyg_Counter ); | |
| 1244 CYG_CHECK_SIZES( cyg_clock, Cyg_Clock ); | |
| 1245 CYG_CHECK_SIZES( cyg_alarm, Cyg_Alarm ); | |
| 1246 CYG_CHECK_SIZES( cyg_mbox, Cyg_Mbox ); | |
| 1247 CYG_CHECK_SIZES( cyg_sem_t, Cyg_Counting_Semaphore ); | |
| 1248 CYG_CHECK_SIZES( cyg_flag_t, Cyg_Flag ); | |
| 1249 CYG_CHECK_SIZES( cyg_mutex_t, Cyg_Mutex ); | |
| 1250 CYG_CHECK_SIZES( cyg_cond_t, Cyg_Condition_Variable ); | |
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1251 CYG_CHECK_SIZES( cyg_spinlock_t, Cyg_SpinLock ); |
| 0 | 1252 |
| 1253 CYG_ASSERT( !fail, "Size checks failed"); | |
| 1254 } | |
| 1255 | |
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1256 static Cyg_Check_Structure_Sizes cyg_kapi_check_structure_sizes(1); |
| 0 | 1257 |
| 1258 #endif | |
| 1259 | |
| 1260 | |
| 1261 // ------------------------------------------------------------------------- | |
| 1262 | |
| 1263 #endif | |
| 1264 // EOF common/kapi.cxx |
