1 /* Kernel specific structures and functions 2 * 3 * Copyright 2004-2005, 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 = 8, /* relative timeout */ 29 B_RELATIVE_TIMEOUT = 8, /* fails after a relative timeout with B_WOULD_BLOCK */ 30 B_ABSOLUTE_TIMEOUT = 16, /* fails after an absolute timeout with B_WOULD BLOCK */ 31 }; 32 33 /*-------------------------------------------------------------*/ 34 /* Types */ 35 36 typedef int32 area_id; 37 typedef int32 port_id; 38 typedef int32 sem_id; 39 typedef int32 team_id; 40 typedef int32 thread_id; 41 42 43 /*-------------------------------------------------------------*/ 44 /* Areas */ 45 46 typedef struct area_info { 47 area_id area; 48 char name[B_OS_NAME_LENGTH]; 49 size_t size; 50 uint32 lock; 51 uint32 protection; 52 team_id team; 53 uint32 ram_size; 54 uint32 copy_count; 55 uint32 in_count; 56 uint32 out_count; 57 void *address; 58 } area_info; 59 60 /* area locking */ 61 #define B_NO_LOCK 0 62 #define B_LAZY_LOCK 1 63 #define B_FULL_LOCK 2 64 #define B_CONTIGUOUS 3 65 #define B_LOMEM 4 66 67 /* address spec for create_area(), and clone_area() */ 68 #define B_ANY_ADDRESS 0 69 #define B_EXACT_ADDRESS 1 70 #define B_BASE_ADDRESS 2 71 #define B_CLONE_ADDRESS 3 72 #define B_ANY_KERNEL_ADDRESS 4 73 74 /* area protection */ 75 #define B_READ_AREA 1 76 #define B_WRITE_AREA 2 77 78 extern area_id create_area(const char *name, void **startAddress, uint32 addressSpec, 79 size_t size, uint32 lock, uint32 protection); 80 extern area_id clone_area(const char *name, void **destAddress, uint32 addressSpec, 81 uint32 protection, area_id source); 82 extern area_id find_area(const char *name); 83 extern area_id area_for(void *address); 84 extern status_t delete_area(area_id id); 85 extern status_t resize_area(area_id id, size_t newSize); 86 extern status_t set_area_protection(area_id id, uint32 newProtection); 87 88 /* system private, use macros instead */ 89 extern status_t _get_area_info(area_id id, area_info *areaInfo, size_t size); 90 extern status_t _get_next_area_info(team_id team, int32 *cookie, 91 area_info *areaInfo, size_t size); 92 93 #define get_area_info(id, areaInfo) \ 94 _get_area_info((id), (areaInfo),sizeof(*(areaInfo))) 95 #define get_next_area_info(team, cookie, areaInfo) \ 96 _get_next_area_info((team), (cookie), (areaInfo), sizeof(*(areaInfo))) 97 98 99 /*-------------------------------------------------------------*/ 100 /* Ports */ 101 102 typedef struct port_info { 103 port_id port; 104 team_id team; 105 char name[B_OS_NAME_LENGTH]; 106 int32 capacity; // queue depth 107 int32 queue_count; // # msgs waiting to be read 108 int32 total_count; // total # msgs read so far 109 } port_info; 110 111 extern port_id create_port(int32 capacity, const char *name); 112 extern port_id find_port(const char *name); 113 extern ssize_t read_port(port_id port, int32 *code, void *buffer, size_t bufferSize); 114 extern ssize_t read_port_etc(port_id port, int32 *code, void *buffer, size_t bufferSize, 115 uint32 flags, bigtime_t timeout); 116 extern status_t write_port(port_id port, int32 code, const void *buffer, size_t bufferSize); 117 extern status_t write_port_etc(port_id port, int32 code, const void *buffer, 118 size_t bufferSize, uint32 flags, bigtime_t timeout); 119 extern status_t close_port(port_id port); 120 extern status_t delete_port(port_id port); 121 122 extern ssize_t port_buffer_size(port_id port); 123 extern ssize_t port_buffer_size_etc(port_id port, uint32 flags, bigtime_t timeout); 124 extern ssize_t port_count(port_id port); 125 extern status_t set_port_owner(port_id port, team_id team); 126 127 /* system private, use the macros instead */ 128 extern status_t _get_port_info(port_id port, port_info *portInfo, size_t portInfoSize); 129 extern status_t _get_next_port_info(team_id team, int32 *cookie, port_info *portInfo, 130 size_t portInfoSize); 131 132 #define get_port_info(port, info) \ 133 _get_port_info((port), (info), sizeof(*(info))) 134 #define get_next_port_info(team, cookie, info) \ 135 _get_next_port_info((team), (cookie), (info), sizeof(*(info))) 136 137 138 /*-------------------------------------------------------------*/ 139 /* Semaphores */ 140 141 typedef struct sem_info { 142 sem_id sem; 143 team_id team; 144 char name[B_OS_NAME_LENGTH]; 145 int32 count; 146 thread_id latest_holder; 147 } sem_info; 148 149 /* semaphore flags */ 150 enum { 151 B_CAN_INTERRUPT = 0x01, // acquisition of the semaphore can be 152 // interrupted (system use only) 153 B_CHECK_PERMISSION = 0x04, // ownership will be checked (system use 154 // only) 155 B_KILL_CAN_INTERRUPT = 0x20, // acquisition of the semaphore can be 156 // interrupted by SIGKILL[THR], even 157 // if not B_CAN_INTERRUPT (system use 158 // only) 159 160 /* release_sem_etc() only flags */ 161 B_DO_NOT_RESCHEDULE = 0x02, // thread is not rescheduled 162 B_RELEASE_ALL = 0x08, // all waiting threads will be woken up, 163 // count will be zeroed 164 B_RELEASE_IF_WAITING_ONLY = 0x10, // release count only if there are any 165 // threads waiting 166 }; 167 168 extern sem_id create_sem(int32 count, const char *name); 169 extern status_t delete_sem(sem_id id); 170 extern status_t acquire_sem(sem_id id); 171 extern status_t acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout); 172 extern status_t release_sem(sem_id id); 173 extern status_t release_sem_etc(sem_id id, int32 count, uint32 flags); 174 // ToDo: the following two calls are not part of the BeOS API, and might be 175 // changed or even removed for the final release of Haiku R1 176 extern status_t switch_sem(sem_id semToBeReleased, sem_id id); 177 extern status_t switch_sem_etc(sem_id semToBeReleased, sem_id id, int32 count, 178 uint32 flags, bigtime_t timeout); 179 extern status_t get_sem_count(sem_id id, int32 *threadCount); 180 extern status_t set_sem_owner(sem_id id, team_id team); 181 182 /* system private, use the macros instead */ 183 extern status_t _get_sem_info(sem_id id, struct sem_info *info, size_t infoSize); 184 extern status_t _get_next_sem_info(team_id team, int32 *cookie, struct sem_info *info, 185 size_t infoSize); 186 187 #define get_sem_info(sem, info) \ 188 _get_sem_info((sem), (info), sizeof(*(info))) 189 190 #define get_next_sem_info(team, cookie, info) \ 191 _get_next_sem_info((team), (cookie), (info), sizeof(*(info))) 192 193 194 /*-------------------------------------------------------------*/ 195 /* Teams */ 196 197 typedef struct { 198 team_id team; 199 int32 thread_count; 200 int32 image_count; 201 int32 area_count; 202 thread_id debugger_nub_thread; 203 port_id debugger_nub_port; 204 int32 argc; 205 char args[64]; 206 uid_t uid; 207 gid_t gid; 208 } team_info; 209 210 #define B_CURRENT_TEAM 0 211 #define B_SYSTEM_TEAM 2 212 213 extern status_t kill_team(team_id team); 214 /* see also: send_signal() */ 215 216 /* system private, use macros instead */ 217 extern status_t _get_team_info(team_id id, team_info *info, size_t size); 218 extern status_t _get_next_team_info(int32 *cookie, team_info *info, size_t size); 219 220 #define get_team_info(id, info) \ 221 _get_team_info((id), (info), sizeof(*(info))) 222 223 #define get_next_team_info(cookie, info) \ 224 _get_next_team_info((cookie), (info), sizeof(*(info))) 225 226 /* team usage info */ 227 228 typedef struct { 229 bigtime_t user_time; 230 bigtime_t kernel_time; 231 } team_usage_info; 232 233 enum { 234 /* compatible to sys/resource.h RUSAGE_SELF and RUSAGE_CHILDREN */ 235 B_TEAM_USAGE_SELF = 0, 236 B_TEAM_USAGE_CHILDREN = -1, 237 }; 238 239 /* system private, use macros instead */ 240 extern status_t _get_team_usage_info(team_id team, int32 who, team_usage_info *info, size_t size); 241 242 #define get_team_usage_info(team, who, info) \ 243 _get_team_usage_info((team), (who), (info), sizeof(*(info))) 244 245 /*-------------------------------------------------------------*/ 246 /* Threads */ 247 248 typedef enum { 249 B_THREAD_RUNNING = 1, 250 B_THREAD_READY, 251 B_THREAD_RECEIVING, 252 B_THREAD_ASLEEP, 253 B_THREAD_SUSPENDED, 254 B_THREAD_WAITING 255 } thread_state; 256 257 typedef struct { 258 thread_id thread; 259 team_id team; 260 char name[B_OS_NAME_LENGTH]; 261 thread_state state; 262 int32 priority; 263 sem_id sem; 264 bigtime_t user_time; 265 bigtime_t kernel_time; 266 void *stack_base; 267 void *stack_end; 268 } thread_info; 269 270 #define B_IDLE_PRIORITY 0 271 #define B_LOWEST_ACTIVE_PRIORITY 1 272 #define B_LOW_PRIORITY 5 273 #define B_NORMAL_PRIORITY 10 274 #define B_DISPLAY_PRIORITY 15 275 #define B_URGENT_DISPLAY_PRIORITY 20 276 #define B_REAL_TIME_DISPLAY_PRIORITY 100 277 #define B_URGENT_PRIORITY 110 278 #define B_REAL_TIME_PRIORITY 120 279 280 #define B_FIRST_REAL_TIME_PRIORITY B_REAL_TIME_DISPLAY_PRIORITY 281 #define B_MIN_PRIORITY B_IDLE_PRIORITY 282 #define B_MAX_PRIORITY B_REAL_TIME_PRIORITY 283 284 #define B_SYSTEM_TIMEBASE 0 285 286 typedef status_t (*thread_func)(void *); 287 #define thread_entry thread_func 288 /* thread_entry is for backward compatibility only! Use thread_func */ 289 290 extern thread_id spawn_thread(thread_func, const char *name, int32 priority, void *data); 291 extern status_t kill_thread(thread_id thread); 292 extern status_t resume_thread(thread_id thread); 293 extern status_t suspend_thread(thread_id thread); 294 295 extern status_t rename_thread(thread_id thread, const char *newName); 296 extern status_t set_thread_priority (thread_id thread, int32 newPriority); 297 extern void exit_thread(status_t status); 298 extern status_t wait_for_thread (thread_id thread, status_t *threadReturnValue); 299 extern status_t on_exit_thread(void (*callback)(void *), void *data); 300 301 extern thread_id find_thread(const char *name); 302 303 extern status_t send_data(thread_id thread, int32 code, const void *buffer, 304 size_t bufferSize); 305 extern int32 receive_data(thread_id *sender, void *buffer, size_t bufferSize); 306 extern bool has_data(thread_id thread); 307 308 extern status_t snooze(bigtime_t amount); 309 extern status_t snooze_etc(bigtime_t amount, int timeBase, uint32 flags); 310 extern status_t snooze_until(bigtime_t time, int timeBase); 311 312 /* system private, use macros instead */ 313 extern status_t _get_thread_info(thread_id id, thread_info *info, size_t size); 314 extern status_t _get_next_thread_info(team_id team, int32 *cookie, 315 thread_info *info, size_t size); 316 317 #define get_thread_info(id, info) \ 318 _get_thread_info((id), (info), sizeof(*(info))) 319 320 #define get_next_thread_info(team, cookie, info) \ 321 _get_next_thread_info((team), (cookie), (info), sizeof(*(info))) 322 323 324 /*-------------------------------------------------------------*/ 325 /* Time */ 326 327 extern uint32 real_time_clock(void); 328 extern void set_real_time_clock(uint32 secs_since_jan1_1970); 329 extern bigtime_t real_time_clock_usecs(void); 330 extern status_t set_timezone(char *timezone); 331 extern bigtime_t system_time(void); /* time since booting in microseconds */ 332 333 334 /*-------------------------------------------------------------*/ 335 /* Alarm */ 336 337 enum { 338 B_ONE_SHOT_ABSOLUTE_ALARM = 1, 339 B_ONE_SHOT_RELATIVE_ALARM, 340 B_PERIODIC_ALARM /* "when" specifies the period */ 341 }; 342 343 extern bigtime_t set_alarm(bigtime_t when, uint32 flags); 344 345 346 /*-------------------------------------------------------------*/ 347 /* Debugger */ 348 349 extern void debugger(const char *message); 350 351 /* 352 calling this function with a non-zero value will cause your thread 353 to receive signals for any exceptional conditions that occur (i.e. 354 you'll get SIGSEGV for data access exceptions, SIGFPE for floating 355 point errors, SIGILL for illegal instructions, etc). 356 357 to re-enable the default debugger pass a zero. 358 */ 359 extern int disable_debugger(int state); 360 361 // TODO: Remove. Temporary debug helper. 362 extern void debug_printf(const char *format, ...) 363 __attribute__ ((format (__printf__, 1, 2))); 364 extern void debug_vprintf(const char *format, va_list args); 365 366 367 /*-------------------------------------------------------------*/ 368 /* System information */ 369 370 #if __INTEL__ 371 # define B_MAX_CPU_COUNT 8 372 #elif __POWERPC__ 373 # define B_MAX_CPU_COUNT 8 374 #endif 375 376 #define OBOS_CPU_TYPES 377 378 typedef enum cpu_types { 379 // ToDo: add latest models 380 381 /* Motorola/IBM */ 382 B_CPU_PPC_601 = 1, 383 B_CPU_PPC_603 = 2, 384 B_CPU_PPC_603e = 3, 385 B_CPU_PPC_604 = 4, 386 B_CPU_PPC_604e = 5, 387 B_CPU_PPC_750 = 6, 388 B_CPU_PPC_686 = 13, 389 390 /* Intel */ 391 392 /* Updated according to Intel(R) Processor Identification and 393 * the CPUID instruction (Table 4) 394 * AP-485 Intel - 24161828.pdf 395 */ 396 B_CPU_INTEL_x86 = 0x1000, 397 B_CPU_INTEL_PENTIUM = 0x1051, 398 B_CPU_INTEL_PENTIUM75, 399 B_CPU_INTEL_PENTIUM_486_OVERDRIVE, 400 B_CPU_INTEL_PENTIUM_MMX, 401 B_CPU_INTEL_PENTIUM_MMX_MODEL_4 = B_CPU_INTEL_PENTIUM_MMX, 402 B_CPU_INTEL_PENTIUM_MMX_MODEL_8 = 0x1058, 403 B_CPU_INTEL_PENTIUM75_486_OVERDRIVE, 404 B_CPU_INTEL_PENTIUM_PRO = 0x1061, 405 B_CPU_INTEL_PENTIUM_II = 0x1063, 406 B_CPU_INTEL_PENTIUM_II_MODEL_3 = 0x1063, 407 B_CPU_INTEL_PENTIUM_II_MODEL_5 = 0x1065, 408 B_CPU_INTEL_CELERON = 0x1066, 409 B_CPU_INTEL_PENTIUM_III = 0x1067, 410 B_CPU_INTEL_PENTIUM_III_MODEL_8 = 0x1068, 411 B_CPU_INTEL_PENTIUM_M = 0x1069, 412 B_CPU_INTEL_PENTIUM_III_XEON = 0x106a, 413 B_CPU_INTEL_PENTIUM_III_MODEL_11 = 0x106b, 414 B_CPU_INTEL_PENTIUM_M_MODEL_13 = 0x106d, /* Dothan */ 415 B_CPU_INTEL_PENTIUM_IV = 0x10f0, 416 B_CPU_INTEL_PENTIUM_IV_MODEL_1, 417 B_CPU_INTEL_PENTIUM_IV_MODEL_2, 418 B_CPU_INTEL_PENTIUM_IV_MODEL_3, 419 B_CPU_INTEL_PENTIUM_IV_MODEL_4, 420 421 /* AMD */ 422 423 /* Checked with "AMD Processor Recognition Application Note" 424 * (Table 3) 425 * 20734.pdf 426 */ 427 B_CPU_AMD_x86 = 0x1100, 428 B_CPU_AMD_K5_MODEL_0 = 0x1150, 429 B_CPU_AMD_K5_MODEL_1, 430 B_CPU_AMD_K5_MODEL_2, 431 B_CPU_AMD_K5_MODEL_3, 432 B_CPU_AMD_K6_MODEL_6 = 0x1156, 433 B_CPU_AMD_K6_MODEL_7 = 0x1157, 434 B_CPU_AMD_K6_MODEL_8 = 0x1158, 435 B_CPU_AMD_K6_2 = 0x1158, 436 B_CPU_AMD_K6_MODEL_9 = 0x1159, 437 B_CPU_AMD_K6_III = 0x1159, 438 B_CPU_AMD_K6_III_MODEL_13 = 0x115d, 439 440 B_CPU_AMD_ATHLON_MODEL_1 = 0x1161, 441 B_CPU_AMD_ATHLON_MODEL_2 = 0x1162, 442 443 B_CPU_AMD_DURON = 0x1163, 444 445 B_CPU_AMD_ATHLON_THUNDERBIRD = 0x1164, 446 B_CPU_AMD_ATHLON_XP = 0x1166, 447 B_CPU_AMD_ATHLON_XP_MODEL_7, 448 B_CPU_AMD_ATHLON_XP_MODEL_8, 449 B_CPU_AMD_ATHLON_XP_MODEL_10 = 0x116a, /* Barton */ 450 451 B_CPU_AMD_SEMPRON_MODEL_8 = B_CPU_AMD_ATHLON_XP_MODEL_8, 452 B_CPU_AMD_SEMPRON_MODEL_10 = B_CPU_AMD_ATHLON_XP_MODEL_10, 453 454 /* According to "Revision guide for AMD Athlon 64 455 * and AMD Opteron Processors" (25759.pdf) 456 */ 457 B_CPU_AMD_ATHLON_64_MODEL_4 = 0x11f4, 458 B_CPU_AMD_ATHLON_64_MODEL_5, 459 B_CPU_AMD_OPTERON = B_CPU_AMD_ATHLON_64_MODEL_5, 460 B_CPU_AMD_ATHLON_64_FX = B_CPU_AMD_ATHLON_64_MODEL_5, 461 B_CPU_AMD_ATHLON_64_MODEL_7 = 0x11f7, 462 B_CPU_AMD_ATHLON_64_MODEL_8, 463 B_CPU_AMD_ATHLON_64_MODEL_11 = 0x11fb, 464 B_CPU_AMD_ATHLON_64_MODEL_12, 465 B_CPU_AMD_ATHLON_64_MODEL_14 = 0x11fe, 466 B_CPU_AMD_ATHLON_64_MODEL_15, 467 468 /* VIA/Cyrix */ 469 B_CPU_CYRIX_x86 = 0x1200, 470 B_CPU_VIA_CYRIX_x86 = 0x1200, 471 B_CPU_CYRIX_GXm = 0x1254, 472 B_CPU_CYRIX_6x86MX = 0x1260, 473 474 /* VIA/IDT */ 475 B_CPU_IDT_x86 = 0x1300, 476 B_CPU_VIA_IDT_x86 = 0x1300, 477 B_CPU_IDT_WINCHIP_C6 = 0x1354, 478 B_CPU_IDT_WINCHIP_2 = 0x1358, 479 B_CPU_IDT_WINCHIP_3, 480 B_CPU_VIA_EDEN = 0x1367, 481 B_CPU_VIA_EDEN_EZRA_T = 0x1368, 482 483 /* Transmeta */ 484 B_CPU_TRANSMETA_x86 = 0x1600, 485 B_CPU_TRANSMETA_CRUSOE = 0x1654, 486 487 /* Rise */ 488 B_CPU_RISE_x86 = 0x1400, 489 B_CPU_RISE_mP6 = 0x1450, 490 491 /* National Semiconductor */ 492 B_CPU_NATIONAL_x86 = 0x1500, 493 B_CPU_NATIONAL_GEODE_GX1 = 0x1554, 494 B_CPU_NATIONAL_GEODE_GX2, 495 496 /* For compatibility */ 497 B_CPU_AMD_29K = 14, 498 B_CPU_x86, 499 B_CPU_MC6502, 500 B_CPU_Z80, 501 B_CPU_ALPHA, 502 B_CPU_MIPS, 503 B_CPU_HPPA, 504 B_CPU_M68K, 505 B_CPU_ARM, 506 B_CPU_SH, 507 B_CPU_SPARC, 508 } cpu_type; 509 510 #define B_CPU_x86_VENDOR_MASK 0xff00 511 512 #ifdef __INTEL__ 513 typedef union { 514 struct { 515 uint32 max_eax; 516 char vendor_id[12]; 517 } eax_0; 518 519 struct { 520 uint32 stepping : 4; 521 uint32 model : 4; 522 uint32 family : 4; 523 uint32 type : 2; 524 uint32 reserved_0 : 2; 525 uint32 extended_model : 4; 526 uint32 extended_family : 8; 527 uint32 reserved_1 : 4; 528 529 uint32 brand_index : 8; 530 uint32 clflush : 8; 531 uint32 logical_cpus : 8; 532 uint32 apic_id : 8; 533 534 uint32 features; 535 uint32 extended_features; 536 } eax_1; 537 538 struct { 539 uint8 call_num; 540 uint8 cache_descriptors[15]; 541 } eax_2; 542 543 struct { 544 uint32 reserved[2]; 545 uint32 serial_number_high; 546 uint32 serial_number_low; 547 } eax_3; 548 549 char as_chars[16]; 550 551 struct { 552 uint32 eax; 553 uint32 ebx; 554 uint32 edx; 555 uint32 ecx; 556 } regs; 557 } cpuid_info; 558 559 extern status_t get_cpuid(cpuid_info *info, uint32 eaxRegister, uint32 cpuNum); 560 #endif 561 562 563 typedef enum platform_types { 564 B_BEBOX_PLATFORM = 0, 565 B_MAC_PLATFORM, 566 B_AT_CLONE_PLATFORM, 567 B_ENIAC_PLATFORM, 568 B_APPLE_II_PLATFORM, 569 B_CRAY_PLATFORM, 570 B_LISA_PLATFORM, 571 B_TI_994A_PLATFORM, 572 B_TIMEX_SINCLAIR_PLATFORM, 573 B_ORAC_1_PLATFORM, 574 B_HAL_PLATFORM, 575 B_BESM_6_PLATFORM, 576 B_MK_61_PLATFORM, 577 B_NINTENDO_64_PLATFORM 578 } platform_type; 579 580 typedef struct { 581 bigtime_t active_time; /* usec of doing useful work since boot */ 582 } cpu_info; 583 584 585 typedef int32 machine_id[2]; /* unique machine ID */ 586 587 typedef struct { 588 machine_id id; /* unique machine ID */ 589 bigtime_t boot_time; /* time of boot (usecs since 1/1/1970) */ 590 591 int32 cpu_count; /* number of cpus */ 592 enum cpu_types cpu_type; /* type of cpu */ 593 int32 cpu_revision; /* revision # of cpu */ 594 cpu_info cpu_infos[B_MAX_CPU_COUNT]; /* info about individual cpus */ 595 int64 cpu_clock_speed; /* processor clock speed (Hz) */ 596 int64 bus_clock_speed; /* bus clock speed (Hz) */ 597 enum platform_types platform_type; /* type of machine we're on */ 598 599 int32 max_pages; /* total # physical pages */ 600 int32 used_pages; /* # physical pages in use */ 601 int32 page_faults; /* # of page faults */ 602 int32 max_sems; 603 int32 used_sems; 604 int32 max_ports; 605 int32 used_ports; 606 int32 max_threads; 607 int32 used_threads; 608 int32 max_teams; 609 int32 used_teams; 610 611 char kernel_name[B_FILE_NAME_LENGTH]; /* name of kernel */ 612 char kernel_build_date[B_OS_NAME_LENGTH]; /* date kernel built */ 613 char kernel_build_time[B_OS_NAME_LENGTH]; /* time kernel built */ 614 int64 kernel_version; /* version of this kernel */ 615 616 bigtime_t _busy_wait_time; /* reserved for whatever */ 617 int32 pad[4]; /* just in case... */ 618 } system_info; 619 620 /* system private, use macro instead */ 621 extern status_t _get_system_info(system_info *info, size_t size); 622 623 #define get_system_info(info) \ 624 _get_system_info((info), sizeof(*(info))) 625 626 extern int32 is_computer_on(void); 627 extern double is_computer_on_fire(void); 628 629 #ifdef __cplusplus 630 } 631 #endif 632 633 #endif /* _OS_H */ 634