1 /* Kernel specific structures and functions 2 * 3 * Copyright 2004-2006, Haiku Inc. All Rights Reserved. 4 * Distributed under the terms of the MIT License. 5 */ 6 #ifndef _OS_H 7 #define _OS_H 8 9 10 #include <stdarg.h> 11 12 #include <SupportDefs.h> 13 #include <StorageDefs.h> 14 15 16 #ifdef __cplusplus 17 extern "C" { 18 #endif 19 20 /*-------------------------------------------------------------*/ 21 /* System constants */ 22 23 #define B_OS_NAME_LENGTH 32 24 #define B_PAGE_SIZE 4096 25 #define B_INFINITE_TIMEOUT (9223372036854775807LL) 26 27 enum { 28 B_TIMEOUT = 0x8, /* relative timeout */ 29 B_RELATIVE_TIMEOUT = 0x8, /* fails after a relative timeout 30 with B_TIMED_OUT */ 31 B_ABSOLUTE_TIMEOUT = 0x10, /* fails after an absolute timeout 32 with B_TIMED_OUT */ 33 34 /* experimental Haiku only API */ 35 B_TIMEOUT_REAL_TIME_BASE = 0x40, 36 B_ABSOLUTE_REAL_TIME_TIMEOUT = B_ABSOLUTE_TIMEOUT 37 | B_TIMEOUT_REAL_TIME_BASE 38 }; 39 40 /*-------------------------------------------------------------*/ 41 /* Types */ 42 43 typedef int32 area_id; 44 typedef int32 port_id; 45 typedef int32 sem_id; 46 typedef int32 team_id; 47 typedef int32 thread_id; 48 49 50 /*-------------------------------------------------------------*/ 51 /* Areas */ 52 53 typedef struct area_info { 54 area_id area; 55 char name[B_OS_NAME_LENGTH]; 56 size_t size; 57 uint32 lock; 58 uint32 protection; 59 team_id team; 60 uint32 ram_size; 61 uint32 copy_count; 62 uint32 in_count; 63 uint32 out_count; 64 void *address; 65 } area_info; 66 67 /* area locking */ 68 #define B_NO_LOCK 0 69 #define B_LAZY_LOCK 1 70 #define B_FULL_LOCK 2 71 #define B_CONTIGUOUS 3 72 #define B_LOMEM 4 73 74 /* address spec for create_area(), and clone_area() */ 75 #define B_ANY_ADDRESS 0 76 #define B_EXACT_ADDRESS 1 77 #define B_BASE_ADDRESS 2 78 #define B_CLONE_ADDRESS 3 79 #define B_ANY_KERNEL_ADDRESS 4 80 81 /* area protection */ 82 #define B_READ_AREA 1 83 #define B_WRITE_AREA 2 84 85 extern area_id create_area(const char *name, void **startAddress, uint32 addressSpec, 86 size_t size, uint32 lock, uint32 protection); 87 extern area_id clone_area(const char *name, void **destAddress, uint32 addressSpec, 88 uint32 protection, area_id source); 89 extern area_id find_area(const char *name); 90 extern area_id area_for(void *address); 91 extern status_t delete_area(area_id id); 92 extern status_t resize_area(area_id id, size_t newSize); 93 extern status_t set_area_protection(area_id id, uint32 newProtection); 94 95 /* system private, use macros instead */ 96 extern status_t _get_area_info(area_id id, area_info *areaInfo, size_t size); 97 extern status_t _get_next_area_info(team_id team, int32 *cookie, 98 area_info *areaInfo, size_t size); 99 100 #define get_area_info(id, areaInfo) \ 101 _get_area_info((id), (areaInfo),sizeof(*(areaInfo))) 102 #define get_next_area_info(team, cookie, areaInfo) \ 103 _get_next_area_info((team), (cookie), (areaInfo), sizeof(*(areaInfo))) 104 105 106 /*-------------------------------------------------------------*/ 107 /* Ports */ 108 109 typedef struct port_info { 110 port_id port; 111 team_id team; 112 char name[B_OS_NAME_LENGTH]; 113 int32 capacity; // queue depth 114 int32 queue_count; // # msgs waiting to be read 115 int32 total_count; // total # msgs read so far 116 } port_info; 117 118 extern port_id create_port(int32 capacity, const char *name); 119 extern port_id find_port(const char *name); 120 extern ssize_t read_port(port_id port, int32 *code, void *buffer, size_t bufferSize); 121 extern ssize_t read_port_etc(port_id port, int32 *code, void *buffer, size_t bufferSize, 122 uint32 flags, bigtime_t timeout); 123 extern status_t write_port(port_id port, int32 code, const void *buffer, size_t bufferSize); 124 extern status_t write_port_etc(port_id port, int32 code, const void *buffer, 125 size_t bufferSize, uint32 flags, bigtime_t timeout); 126 extern status_t close_port(port_id port); 127 extern status_t delete_port(port_id port); 128 129 extern ssize_t port_buffer_size(port_id port); 130 extern ssize_t port_buffer_size_etc(port_id port, uint32 flags, bigtime_t timeout); 131 extern ssize_t port_count(port_id port); 132 extern status_t set_port_owner(port_id port, team_id team); 133 134 /* system private, use the macros instead */ 135 extern status_t _get_port_info(port_id port, port_info *portInfo, size_t portInfoSize); 136 extern status_t _get_next_port_info(team_id team, int32 *cookie, port_info *portInfo, 137 size_t portInfoSize); 138 139 #define get_port_info(port, info) \ 140 _get_port_info((port), (info), sizeof(*(info))) 141 #define get_next_port_info(team, cookie, info) \ 142 _get_next_port_info((team), (cookie), (info), sizeof(*(info))) 143 144 145 // WARNING: The following is Haiku experimental API. It might be removed or 146 // changed in the future. 147 148 typedef struct port_message_info { 149 size_t size; 150 uid_t sender; 151 gid_t sender_group; 152 team_id sender_team; 153 } port_message_info; 154 155 // similar to port_buffer_size_etc(), but returns (more) info 156 extern status_t _get_port_message_info_etc(port_id port, 157 port_message_info *info, size_t infoSize, uint32 flags, 158 bigtime_t timeout); 159 160 #define get_port_message_info_etc(port, info, flags, timeout) \ 161 _get_port_message_info_etc((port), (info), sizeof(*(info)), flags, \ 162 timeout) 163 164 /*-------------------------------------------------------------*/ 165 /* Semaphores */ 166 167 typedef struct sem_info { 168 sem_id sem; 169 team_id team; 170 char name[B_OS_NAME_LENGTH]; 171 int32 count; 172 thread_id latest_holder; 173 } sem_info; 174 175 /* semaphore flags */ 176 enum { 177 B_CAN_INTERRUPT = 0x01, // acquisition of the semaphore can be 178 // interrupted (system use only) 179 B_CHECK_PERMISSION = 0x04, // ownership will be checked (system use 180 // only) 181 B_KILL_CAN_INTERRUPT = 0x20, // acquisition of the semaphore can be 182 // interrupted by SIGKILL[THR], even 183 // if not B_CAN_INTERRUPT (system use 184 // only) 185 186 /* release_sem_etc() only flags */ 187 B_DO_NOT_RESCHEDULE = 0x02, // thread is not rescheduled 188 B_RELEASE_ALL = 0x08, // all waiting threads will be woken up, 189 // count will be zeroed 190 B_RELEASE_IF_WAITING_ONLY = 0x10 // release count only if there are any 191 // threads waiting 192 }; 193 194 extern sem_id create_sem(int32 count, const char *name); 195 extern status_t delete_sem(sem_id id); 196 extern status_t acquire_sem(sem_id id); 197 extern status_t acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout); 198 extern status_t release_sem(sem_id id); 199 extern status_t release_sem_etc(sem_id id, int32 count, uint32 flags); 200 // ToDo: the following two calls are not part of the BeOS API, and might be 201 // changed or even removed for the final release of Haiku R1 202 extern status_t switch_sem(sem_id semToBeReleased, sem_id id); 203 extern status_t switch_sem_etc(sem_id semToBeReleased, sem_id id, int32 count, 204 uint32 flags, bigtime_t timeout); 205 extern status_t get_sem_count(sem_id id, int32 *threadCount); 206 extern status_t set_sem_owner(sem_id id, team_id team); 207 208 /* system private, use the macros instead */ 209 extern status_t _get_sem_info(sem_id id, struct sem_info *info, size_t infoSize); 210 extern status_t _get_next_sem_info(team_id team, int32 *cookie, struct sem_info *info, 211 size_t infoSize); 212 213 #define get_sem_info(sem, info) \ 214 _get_sem_info((sem), (info), sizeof(*(info))) 215 216 #define get_next_sem_info(team, cookie, info) \ 217 _get_next_sem_info((team), (cookie), (info), sizeof(*(info))) 218 219 220 /*-------------------------------------------------------------*/ 221 /* Teams */ 222 223 typedef struct { 224 team_id team; 225 int32 thread_count; 226 int32 image_count; 227 int32 area_count; 228 thread_id debugger_nub_thread; 229 port_id debugger_nub_port; 230 int32 argc; 231 char args[64]; 232 uid_t uid; 233 gid_t gid; 234 } team_info; 235 236 #define B_CURRENT_TEAM 0 237 #define B_SYSTEM_TEAM 1 238 239 extern status_t kill_team(team_id team); 240 /* see also: send_signal() */ 241 242 /* system private, use macros instead */ 243 extern status_t _get_team_info(team_id id, team_info *info, size_t size); 244 extern status_t _get_next_team_info(int32 *cookie, team_info *info, size_t size); 245 246 #define get_team_info(id, info) \ 247 _get_team_info((id), (info), sizeof(*(info))) 248 249 #define get_next_team_info(cookie, info) \ 250 _get_next_team_info((cookie), (info), sizeof(*(info))) 251 252 /* team usage info */ 253 254 typedef struct { 255 bigtime_t user_time; 256 bigtime_t kernel_time; 257 } team_usage_info; 258 259 enum { 260 /* compatible to sys/resource.h RUSAGE_SELF and RUSAGE_CHILDREN */ 261 B_TEAM_USAGE_SELF = 0, 262 B_TEAM_USAGE_CHILDREN = -1 263 }; 264 265 /* system private, use macros instead */ 266 extern status_t _get_team_usage_info(team_id team, int32 who, team_usage_info *info, size_t size); 267 268 #define get_team_usage_info(team, who, info) \ 269 _get_team_usage_info((team), (who), (info), sizeof(*(info))) 270 271 /*-------------------------------------------------------------*/ 272 /* Threads */ 273 274 typedef enum { 275 B_THREAD_RUNNING = 1, 276 B_THREAD_READY, 277 B_THREAD_RECEIVING, 278 B_THREAD_ASLEEP, 279 B_THREAD_SUSPENDED, 280 B_THREAD_WAITING 281 } thread_state; 282 283 typedef struct { 284 thread_id thread; 285 team_id team; 286 char name[B_OS_NAME_LENGTH]; 287 thread_state state; 288 int32 priority; 289 sem_id sem; 290 bigtime_t user_time; 291 bigtime_t kernel_time; 292 void *stack_base; 293 void *stack_end; 294 } thread_info; 295 296 #define B_IDLE_PRIORITY 0 297 #define B_LOWEST_ACTIVE_PRIORITY 1 298 #define B_LOW_PRIORITY 5 299 #define B_NORMAL_PRIORITY 10 300 #define B_DISPLAY_PRIORITY 15 301 #define B_URGENT_DISPLAY_PRIORITY 20 302 #define B_REAL_TIME_DISPLAY_PRIORITY 100 303 #define B_URGENT_PRIORITY 110 304 #define B_REAL_TIME_PRIORITY 120 305 306 #define B_FIRST_REAL_TIME_PRIORITY B_REAL_TIME_DISPLAY_PRIORITY 307 #define B_MIN_PRIORITY B_IDLE_PRIORITY 308 #define B_MAX_PRIORITY B_REAL_TIME_PRIORITY 309 310 #define B_SYSTEM_TIMEBASE 0 311 312 typedef status_t (*thread_func)(void *); 313 #define thread_entry thread_func 314 /* thread_entry is for backward compatibility only! Use thread_func */ 315 316 extern thread_id spawn_thread(thread_func, const char *name, int32 priority, void *data); 317 extern status_t kill_thread(thread_id thread); 318 extern status_t resume_thread(thread_id thread); 319 extern status_t suspend_thread(thread_id thread); 320 321 extern status_t rename_thread(thread_id thread, const char *newName); 322 extern status_t set_thread_priority (thread_id thread, int32 newPriority); 323 extern void exit_thread(status_t status); 324 extern status_t wait_for_thread (thread_id thread, status_t *threadReturnValue); 325 extern status_t on_exit_thread(void (*callback)(void *), void *data); 326 327 extern thread_id find_thread(const char *name); 328 329 extern status_t send_data(thread_id thread, int32 code, const void *buffer, 330 size_t bufferSize); 331 extern int32 receive_data(thread_id *sender, void *buffer, size_t bufferSize); 332 extern bool has_data(thread_id thread); 333 334 extern status_t snooze(bigtime_t amount); 335 extern status_t snooze_etc(bigtime_t amount, int timeBase, uint32 flags); 336 extern status_t snooze_until(bigtime_t time, int timeBase); 337 338 /* system private, use macros instead */ 339 extern status_t _get_thread_info(thread_id id, thread_info *info, size_t size); 340 extern status_t _get_next_thread_info(team_id team, int32 *cookie, 341 thread_info *info, size_t size); 342 343 #define get_thread_info(id, info) \ 344 _get_thread_info((id), (info), sizeof(*(info))) 345 346 #define get_next_thread_info(team, cookie, info) \ 347 _get_next_thread_info((team), (cookie), (info), sizeof(*(info))) 348 349 350 /*-------------------------------------------------------------*/ 351 /* Time */ 352 353 extern uint32 real_time_clock(void); 354 extern void set_real_time_clock(uint32 secs_since_jan1_1970); 355 extern bigtime_t real_time_clock_usecs(void); 356 extern status_t set_timezone(char *timezone); 357 extern bigtime_t system_time(void); /* time since booting in microseconds */ 358 359 360 /*-------------------------------------------------------------*/ 361 /* Alarm */ 362 363 enum { 364 B_ONE_SHOT_ABSOLUTE_ALARM = 1, 365 B_ONE_SHOT_RELATIVE_ALARM, 366 B_PERIODIC_ALARM /* "when" specifies the period */ 367 }; 368 369 extern bigtime_t set_alarm(bigtime_t when, uint32 flags); 370 371 372 /*-------------------------------------------------------------*/ 373 /* Debugger */ 374 375 extern void debugger(const char *message); 376 377 /* 378 calling this function with a non-zero value will cause your thread 379 to receive signals for any exceptional conditions that occur (i.e. 380 you'll get SIGSEGV for data access exceptions, SIGFPE for floating 381 point errors, SIGILL for illegal instructions, etc). 382 383 to re-enable the default debugger pass a zero. 384 */ 385 extern int disable_debugger(int state); 386 387 // TODO: Remove. Temporary debug helper. 388 extern void debug_printf(const char *format, ...) 389 __attribute__ ((format (__printf__, 1, 2))); 390 extern void debug_vprintf(const char *format, va_list args); 391 extern void ktrace_printf(const char *format, ...) 392 __attribute__ ((format (__printf__, 1, 2))); 393 extern void ktrace_vprintf(const char *format, va_list args); 394 395 396 /*-------------------------------------------------------------*/ 397 /* System information */ 398 399 #if __INTEL__ 400 # define B_MAX_CPU_COUNT 8 401 #elif __POWERPC__ 402 # define B_MAX_CPU_COUNT 8 403 #elif __M68K__ 404 # define B_MAX_CPU_COUNT 1 405 #else 406 # warning Unknown cpu 407 # define B_MAX_CPU_COUNT 1 408 #endif 409 410 #define OBOS_CPU_TYPES 411 412 typedef enum cpu_types { 413 // ToDo: add latest models 414 415 /* Motorola/IBM */ 416 B_CPU_PPC_UNKNOWN = 0, 417 B_CPU_PPC_601 = 1, 418 B_CPU_PPC_602 = 7, 419 B_CPU_PPC_603 = 2, 420 B_CPU_PPC_603e = 3, 421 B_CPU_PPC_603ev = 8, 422 B_CPU_PPC_604 = 4, 423 B_CPU_PPC_604e = 5, 424 B_CPU_PPC_604ev = 9, 425 B_CPU_PPC_620 = 10, 426 B_CPU_PPC_750 = 6, 427 B_CPU_PPC_686 = 13, 428 B_CPU_PPC_860 = 25, 429 B_CPU_PPC_7400 = 26, 430 B_CPU_PPC_7410 = 27, 431 B_CPU_PPC_7447A = 28, 432 B_CPU_PPC_7448 = 29, 433 B_CPU_PPC_7450 = 30, 434 B_CPU_PPC_7455 = 31, 435 B_CPU_PPC_7457 = 32, 436 B_CPU_PPC_8240 = 33, 437 B_CPU_PPC_8245 = 34, 438 439 B_CPU_PPC_IBM_401A1 = 35, 440 B_CPU_PPC_IBM_401B2 = 36, 441 B_CPU_PPC_IBM_401C2 = 37, 442 B_CPU_PPC_IBM_401D2 = 38, 443 B_CPU_PPC_IBM_401E2 = 39, 444 B_CPU_PPC_IBM_401F2 = 40, 445 B_CPU_PPC_IBM_401G2 = 41, 446 B_CPU_PPC_IBM_403 = 42, 447 B_CPU_PPC_IBM_405GP = 43, 448 B_CPU_PPC_IBM_405L = 44, 449 B_CPU_PPC_IBM_750FX = 45, 450 B_CPU_PPC_IBM_POWER3 = 46, 451 452 /* Intel */ 453 454 /* Updated according to Intel(R) Processor Identification and 455 * the CPUID instruction (Table 4) 456 * AP-485 Intel - 24161832.pdf 457 */ 458 B_CPU_INTEL_x86 = 0x1000, 459 B_CPU_INTEL_PENTIUM = 0x1051, 460 B_CPU_INTEL_PENTIUM75, 461 B_CPU_INTEL_PENTIUM_486_OVERDRIVE, 462 B_CPU_INTEL_PENTIUM_MMX, 463 B_CPU_INTEL_PENTIUM_MMX_MODEL_4 = B_CPU_INTEL_PENTIUM_MMX, 464 B_CPU_INTEL_PENTIUM_MMX_MODEL_8 = 0x1058, 465 B_CPU_INTEL_PENTIUM75_486_OVERDRIVE, 466 B_CPU_INTEL_PENTIUM_PRO = 0x1061, 467 B_CPU_INTEL_PENTIUM_II = 0x1063, 468 B_CPU_INTEL_PENTIUM_II_MODEL_3 = 0x1063, 469 B_CPU_INTEL_PENTIUM_II_MODEL_5 = 0x1065, 470 B_CPU_INTEL_CELERON = 0x1066, 471 B_CPU_INTEL_CELERON_MODEL_22 = 0x11066, 472 B_CPU_INTEL_PENTIUM_III = 0x1067, 473 B_CPU_INTEL_PENTIUM_III_MODEL_8 = 0x1068, 474 B_CPU_INTEL_PENTIUM_M = 0x1069, 475 B_CPU_INTEL_PENTIUM_III_XEON = 0x106a, 476 B_CPU_INTEL_PENTIUM_III_MODEL_11 = 0x106b, 477 B_CPU_INTEL_PENTIUM_M_MODEL_13 = 0x106d, /* Dothan */ 478 B_CPU_INTEL_PENTIUM_CORE, 479 B_CPU_INTEL_PENTIUM_CORE_2, 480 B_CPU_INTEL_PENTIUM_CORE_2_EXTREME = 0x11067, /* Core 2 Extreme or Xeon 481 model 23 on 45 nm */ 482 B_CPU_INTEL_PENTIUM_IV = 0x10f0, 483 B_CPU_INTEL_PENTIUM_IV_MODEL_1, 484 B_CPU_INTEL_PENTIUM_IV_MODEL_2, 485 B_CPU_INTEL_PENTIUM_IV_MODEL_3, 486 B_CPU_INTEL_PENTIUM_IV_MODEL_4, 487 488 /* AMD */ 489 490 /* Checked with "AMD Processor Recognition Application Note" 491 * (Table 3) 492 * 20734.pdf 493 */ 494 B_CPU_AMD_x86 = 0x1100, 495 B_CPU_AMD_K5_MODEL_0 = 0x1150, 496 B_CPU_AMD_K5_MODEL_1, 497 B_CPU_AMD_K5_MODEL_2, 498 B_CPU_AMD_K5_MODEL_3, 499 B_CPU_AMD_K6_MODEL_6 = 0x1156, 500 B_CPU_AMD_K6_MODEL_7 = 0x1157, 501 B_CPU_AMD_K6_MODEL_8 = 0x1158, 502 B_CPU_AMD_K6_2 = 0x1158, 503 B_CPU_AMD_K6_MODEL_9 = 0x1159, 504 B_CPU_AMD_K6_III = 0x1159, 505 B_CPU_AMD_K6_III_MODEL_13 = 0x115d, 506 507 B_CPU_AMD_ATHLON_MODEL_1 = 0x1161, 508 B_CPU_AMD_ATHLON_MODEL_2 = 0x1162, 509 510 B_CPU_AMD_DURON = 0x1163, 511 512 B_CPU_AMD_ATHLON_THUNDERBIRD = 0x1164, 513 B_CPU_AMD_ATHLON_XP = 0x1166, 514 B_CPU_AMD_ATHLON_XP_MODEL_7, 515 B_CPU_AMD_ATHLON_XP_MODEL_8, 516 B_CPU_AMD_ATHLON_XP_MODEL_10 = 0x116a, /* Barton */ 517 518 B_CPU_AMD_SEMPRON_MODEL_8 = B_CPU_AMD_ATHLON_XP_MODEL_8, 519 B_CPU_AMD_SEMPRON_MODEL_10 = B_CPU_AMD_ATHLON_XP_MODEL_10, 520 521 /* According to "Revision guide for AMD Athlon 64 522 * and AMD Opteron Processors" (25759.pdf) 523 */ 524 B_CPU_AMD_ATHLON_64_MODEL_3 = 0x11f3, 525 B_CPU_AMD_ATHLON_64_MODEL_4, 526 B_CPU_AMD_ATHLON_64_MODEL_5, 527 B_CPU_AMD_OPTERON = B_CPU_AMD_ATHLON_64_MODEL_5, 528 B_CPU_AMD_ATHLON_64_FX = B_CPU_AMD_ATHLON_64_MODEL_5, 529 B_CPU_AMD_ATHLON_64_MODEL_7 = 0x11f7, 530 B_CPU_AMD_ATHLON_64_MODEL_8, 531 B_CPU_AMD_ATHLON_64_MODEL_11 = 0x11fb, 532 B_CPU_AMD_ATHLON_64_MODEL_12, 533 B_CPU_AMD_ATHLON_64_MODEL_14 = 0x11fe, 534 B_CPU_AMD_ATHLON_64_MODEL_15, 535 536 B_CPU_AMD_GEODE_LX = 0x115a, 537 538 /* VIA/Cyrix */ 539 B_CPU_CYRIX_x86 = 0x1200, 540 B_CPU_VIA_CYRIX_x86 = 0x1200, 541 B_CPU_CYRIX_GXm = 0x1254, 542 B_CPU_CYRIX_6x86MX = 0x1260, 543 544 /* VIA/IDT */ 545 B_CPU_IDT_x86 = 0x1300, 546 B_CPU_VIA_IDT_x86 = 0x1300, 547 B_CPU_IDT_WINCHIP_C6 = 0x1354, 548 B_CPU_IDT_WINCHIP_2 = 0x1358, 549 B_CPU_IDT_WINCHIP_3, 550 B_CPU_VIA_C3_SAMUEL = 0x1366, 551 B_CPU_VIA_C3_SAMUEL_2 = 0x1367, 552 B_CPU_VIA_C3_EZRA_T = 0x1368, 553 B_CPU_VIA_C3_NEHEMIAH = 0x1369, 554 555 /* Transmeta */ 556 B_CPU_TRANSMETA_x86 = 0x1600, 557 B_CPU_TRANSMETA_CRUSOE = 0x1654, 558 559 /* Rise */ 560 B_CPU_RISE_x86 = 0x1400, 561 B_CPU_RISE_mP6 = 0x1450, 562 563 /* National Semiconductor */ 564 B_CPU_NATIONAL_x86 = 0x1500, 565 B_CPU_NATIONAL_GEODE_GX1 = 0x1554, 566 B_CPU_NATIONAL_GEODE_GX2, 567 568 /* For compatibility */ 569 B_CPU_AMD_29K = 14, 570 B_CPU_x86, 571 B_CPU_MC6502, 572 B_CPU_Z80, 573 B_CPU_ALPHA, 574 B_CPU_MIPS, 575 B_CPU_HPPA, 576 B_CPU_M68K, 577 B_CPU_ARM, 578 B_CPU_SH, 579 B_CPU_SPARC 580 } cpu_type; 581 582 #define B_CPU_x86_VENDOR_MASK 0xff00 583 584 #ifdef __INTEL__ 585 typedef union { 586 struct { 587 uint32 max_eax; 588 char vendor_id[12]; 589 } eax_0; 590 591 struct { 592 uint32 stepping : 4; 593 uint32 model : 4; 594 uint32 family : 4; 595 uint32 type : 2; 596 uint32 reserved_0 : 2; 597 uint32 extended_model : 4; 598 uint32 extended_family : 8; 599 uint32 reserved_1 : 4; 600 601 uint32 brand_index : 8; 602 uint32 clflush : 8; 603 uint32 logical_cpus : 8; 604 uint32 apic_id : 8; 605 606 uint32 features; 607 uint32 extended_features; 608 } eax_1; 609 610 struct { 611 uint8 call_num; 612 uint8 cache_descriptors[15]; 613 } eax_2; 614 615 struct { 616 uint32 reserved[2]; 617 uint32 serial_number_high; 618 uint32 serial_number_low; 619 } eax_3; 620 621 char as_chars[16]; 622 623 struct { 624 uint32 eax; 625 uint32 ebx; 626 uint32 edx; 627 uint32 ecx; 628 } regs; 629 } cpuid_info; 630 631 extern status_t get_cpuid(cpuid_info *info, uint32 eaxRegister, uint32 cpuNum); 632 #endif 633 634 635 typedef enum platform_types { 636 B_BEBOX_PLATFORM = 0, 637 B_MAC_PLATFORM, 638 B_AT_CLONE_PLATFORM, 639 B_ENIAC_PLATFORM, 640 B_APPLE_II_PLATFORM, 641 B_CRAY_PLATFORM, 642 B_LISA_PLATFORM, 643 B_TI_994A_PLATFORM, 644 B_TIMEX_SINCLAIR_PLATFORM, 645 B_ORAC_1_PLATFORM, 646 B_HAL_PLATFORM, 647 B_BESM_6_PLATFORM, 648 B_MK_61_PLATFORM, 649 B_NINTENDO_64_PLATFORM, 650 B_AMIGA_PLATFORM, 651 B_ATARI_PLATFORM 652 } platform_type; 653 654 typedef struct { 655 bigtime_t active_time; /* usec of doing useful work since boot */ 656 } cpu_info; 657 658 659 typedef int32 machine_id[2]; /* unique machine ID */ 660 661 typedef struct { 662 machine_id id; /* unique machine ID */ 663 bigtime_t boot_time; /* time of boot (usecs since 1/1/1970) */ 664 665 int32 cpu_count; /* number of cpus */ 666 enum cpu_types cpu_type; /* type of cpu */ 667 int32 cpu_revision; /* revision # of cpu */ 668 cpu_info cpu_infos[B_MAX_CPU_COUNT]; /* info about individual cpus */ 669 int64 cpu_clock_speed; /* processor clock speed (Hz) */ 670 int64 bus_clock_speed; /* bus clock speed (Hz) */ 671 enum platform_types platform_type; /* type of machine we're on */ 672 673 int32 max_pages; /* total # physical pages */ 674 int32 used_pages; /* # physical pages in use */ 675 int32 page_faults; /* # of page faults */ 676 int32 max_sems; 677 int32 used_sems; 678 int32 max_ports; 679 int32 used_ports; 680 int32 max_threads; 681 int32 used_threads; 682 int32 max_teams; 683 int32 used_teams; 684 685 char kernel_name[B_FILE_NAME_LENGTH]; /* name of kernel */ 686 char kernel_build_date[B_OS_NAME_LENGTH]; /* date kernel built */ 687 char kernel_build_time[B_OS_NAME_LENGTH]; /* time kernel built */ 688 int64 kernel_version; /* version of this kernel */ 689 690 bigtime_t _busy_wait_time; /* reserved for whatever */ 691 int32 cached_pages; 692 int32 pad[3]; /* just in case... */ 693 } system_info; 694 695 /* system private, use macro instead */ 696 extern status_t _get_system_info(system_info *info, size_t size); 697 698 #define get_system_info(info) \ 699 _get_system_info((info), sizeof(*(info))) 700 701 extern int32 is_computer_on(void); 702 extern double is_computer_on_fire(void); 703 704 705 // WARNING: Experimental API! 706 707 enum { 708 B_OBJECT_TYPE_FD = 0, 709 B_OBJECT_TYPE_SEMAPHORE = 1, 710 B_OBJECT_TYPE_PORT = 2, 711 B_OBJECT_TYPE_THREAD = 3 712 }; 713 714 enum { 715 B_EVENT_READ = 0x0001, // FD/port readable 716 B_EVENT_WRITE = 0x0002, // FD/port writable 717 B_EVENT_ERROR = 0x0004, // FD error 718 B_EVENT_PRIORITY_READ = 0x0008, // FD priority readable 719 B_EVENT_PRIORITY_WRITE = 0x0010, // FD priority writable 720 B_EVENT_HIGH_PRIORITY_READ = 0x0020, // FD high priority readable 721 B_EVENT_HIGH_PRIORITY_WRITE = 0x0040, // FD high priority writable 722 B_EVENT_DISCONNECTED = 0x0080, // FD disconnected 723 724 B_EVENT_ACQUIRE_SEMAPHORE = 0x0001, // semaphore can be acquired 725 726 B_EVENT_INVALID = 0x1000 // FD/port/sem/thread ID not or 727 // no longer valid (e.g. has been 728 // close/deleted) 729 }; 730 731 typedef struct object_wait_info { 732 int32 object; // ID of the object 733 uint16 type; // type of the object 734 uint16 events; // events mask 735 } object_wait_info; 736 737 // wait_for_objects[_etc]() waits until at least one of the specified events or, 738 // if given, the timeout occurred. When entering the function the 739 // object_wait_info::events field specifies the events for each object the 740 // caller is interested in. When the function returns the fields reflect the 741 // events that actually occurred. The events B_EVENT_INVALID, B_EVENT_ERROR, 742 // and B_EVENT_DISCONNECTED don't need to be specified. They will always be 743 // reported, when they occur. 744 745 extern ssize_t wait_for_objects(object_wait_info* infos, int numInfos); 746 extern ssize_t wait_for_objects_etc(object_wait_info* infos, int numInfos, 747 uint32 flags, bigtime_t timeout); 748 749 750 #ifdef __cplusplus 751 } 752 #endif 753 754 #endif /* _OS_H */ 755