1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* 3 * The contents of this file are subject to the Mozilla Public 4 * License Version 1.1 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of 6 * the License at http://www.mozilla.org/MPL/ 7 * 8 * Software distributed under the License is distributed on an "AS 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 10 * implied. See the License for the specific language governing 11 * rights and limitations under the License. 12 * 13 * The Original Code is the Netscape Portable Runtime (NSPR). 14 * 15 * The Initial Developer of the Original Code is Netscape 16 * Communications Corporation. Portions created by Netscape are 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All 18 * Rights Reserved. 19 * 20 * Contributor(s): 21 * 22 * Alternatively, the contents of this file may be used under the 23 * terms of the GNU General Public License Version 2 or later (the 24 * "GPL"), in which case the provisions of the GPL are applicable 25 * instead of those above. If you wish to allow use of your 26 * version of this file only under the terms of the GPL and not to 27 * allow others to use your version of this file under the MPL, 28 * indicate your decision by deleting the provisions above and 29 * replace them with the notice and other provisions required by 30 * the GPL. If you do not delete the provisions above, a recipient 31 * may use your version of this file under either the MPL or the 32 * GPL. 33 */ 34 35 #ifndef nspr_os2_defs_h___ 36 #define nspr_os2_defs_h___ 37 38 #define INCL_DOS 39 #define INCL_DOSPROCESS 40 #define INCL_DOSERRORS 41 #define INCL_WIN 42 #define INCL_WPS 43 #include <os2.h> 44 #include <sys/select.h> 45 46 #include "prio.h" 47 48 #include <errno.h> 49 50 #ifdef XP_OS2_VACPP 51 /* TODO RAMSEMs need to be written for GCC/EMX */ 52 #define USE_RAMSEM 53 #endif 54 55 #ifdef USE_RAMSEM 56 #pragma pack(4) 57 58 #pragma pack(2) 59 typedef struct _RAMSEM 60 { 61 ULONG ulTIDPID; 62 ULONG hevSem; 63 ULONG cLocks; 64 USHORT cWaiting; 65 USHORT cPosts; 66 } RAMSEM, *PRAMSEM; 67 68 typedef struct _CRITICAL_SECTION 69 { 70 ULONG ulReserved[4]; /* Same size as RAMSEM */ 71 } CRITICAL_SECTION, *PCRITICAL_SECTION, *LPCRITICAL_SECTION; 72 #pragma pack(4) 73 74 APIRET _Optlink SemRequest486(PRAMSEM, ULONG); 75 APIRET _Optlink SemReleasex86(PRAMSEM, ULONG); 76 #endif 77 78 /* 79 * Internal configuration macros 80 */ 81 82 #define PR_LINKER_ARCH "os2" 83 #define _PR_SI_SYSNAME "OS2" 84 #define _PR_SI_ARCHITECTURE "x86" /* XXXMB hardcode for now */ 85 86 #define HAVE_DLL 87 #define _PR_GLOBAL_THREADS_ONLY 88 #undef HAVE_THREAD_AFFINITY 89 #define _PR_HAVE_THREADSAFE_GETHOST 90 #define _PR_HAVE_ATOMIC_OPS 91 92 #define HANDLE unsigned long 93 #define HINSTANCE HMODULE 94 95 /* --- Common User-Thread/Native-Thread Definitions --------------------- */ 96 97 /* --- Globals --- */ 98 extern struct PRLock *_pr_schedLock; 99 100 /* --- Typedefs --- */ 101 typedef void (*FiberFunc)(void *); 102 103 #define PR_NUM_GCREGS 8 104 typedef PRInt32 PR_CONTEXT_TYPE[PR_NUM_GCREGS]; 105 #define GC_VMBASE 0x40000000 106 #define GC_VMLIMIT 0x00FFFFFF 107 typedef int (*FARPROC)(); 108 109 #define _MD_MAGIC_THREAD 0x22222222 110 #define _MD_MAGIC_THREADSTACK 0x33333333 111 #define _MD_MAGIC_SEGMENT 0x44444444 112 #define _MD_MAGIC_DIR 0x55555555 113 #define _MD_MAGIC_CV 0x66666666 114 115 struct _MDSemaphore { 116 HEV sem; 117 }; 118 119 struct _MDCPU { 120 int unused; 121 }; 122 123 struct _MDThread { 124 HEV blocked_sema; /* Threads block on this when waiting 125 * for IO or CondVar. 126 */ 127 PRBool inCVWaitQueue; /* PR_TRUE if the thread is in the 128 * wait queue of some cond var. 129 * PR_FALSE otherwise. */ 130 TID handle; /* OS/2 thread handle */ 131 void *sp; /* only valid when suspended */ 132 PRUint32 magic; /* for debugging */ 133 PR_CONTEXT_TYPE gcContext; /* Thread context for GC */ 134 struct PRThread *prev, *next; /* used by the cvar wait queue to 135 * chain the PRThread structures 136 * together */ 137 }; 138 139 struct _MDThreadStack { 140 PRUint32 magic; /* for debugging */ 141 }; 142 143 struct _MDSegment { 144 PRUint32 magic; /* for debugging */ 145 }; 146 147 #undef PROFILE_LOCKS 148 149 struct _MDDir { 150 HDIR d_hdl; 151 FILEFINDBUF3 d_entry; 152 PRBool firstEntry; /* Is this the entry returned 153 * by FindFirstFile()? */ 154 PRUint32 magic; /* for debugging */ 155 }; 156 157 struct _MDCVar { 158 PRUint32 magic; 159 struct PRThread *waitHead, *waitTail; /* the wait queue: a doubly- 160 * linked list of threads 161 * waiting on this condition 162 * variable */ 163 PRIntn nwait; /* number of threads in the 164 * wait queue */ 165 }; 166 167 #define _MD_CV_NOTIFIED_LENGTH 6 168 typedef struct _MDNotified _MDNotified; 169 struct _MDNotified { 170 PRIntn length; /* # of used entries in this 171 * structure */ 172 struct { 173 struct _MDCVar *cv; /* the condition variable notified */ 174 PRIntn times; /* and the number of times notified */ 175 struct PRThread *notifyHead; /* list of threads to wake up */ 176 } cv[_MD_CV_NOTIFIED_LENGTH]; 177 _MDNotified *link; /* link to another of these, or NULL */ 178 }; 179 180 struct _MDLock { 181 #ifdef USE_RAMSEM 182 CRITICAL_SECTION mutex; /* this is recursive on NT */ 183 #else 184 HMTX mutex; /* this is recursive on NT */ 185 #endif 186 187 /* 188 * When notifying cvars, there is no point in actually 189 * waking up the threads waiting on the cvars until we've 190 * released the lock. So, we temporarily record the cvars. 191 * When doing an unlock, we'll then wake up the waiting threads. 192 */ 193 struct _MDNotified notified; /* array of conditions notified */ 194 #ifdef PROFILE_LOCKS 195 PRInt32 hitcount; 196 PRInt32 misscount; 197 #endif 198 }; 199 200 struct _MDFileDesc { 201 PRInt32 osfd; /* The osfd can come from one of three spaces: 202 * - For stdin, stdout, and stderr, we are using 203 * the libc file handle (0, 1, 2), which is an int. 204 * - For files and pipes, we are using OS/2 handles, 205 * which is a void*. 206 * - For sockets, we are using int 207 */ 208 }; 209 210 struct _MDProcess { 211 PID pid; 212 }; 213 214 /* --- Misc stuff --- */ 215 #define _MD_GET_SP(thread) (thread)->md.gcContext[6] 216 217 /* --- IO stuff --- */ 218 219 #define _MD_OPEN (_PR_MD_OPEN) 220 #define _MD_OPEN_FILE (_PR_MD_OPEN) 221 #define _MD_READ (_PR_MD_READ) 222 #define _MD_WRITE (_PR_MD_WRITE) 223 #define _MD_WRITEV (_PR_MD_WRITEV) 224 #define _MD_LSEEK (_PR_MD_LSEEK) 225 #define _MD_LSEEK64 (_PR_MD_LSEEK64) 226 extern PRInt32 _MD_CloseFile(PRInt32 osfd); 227 #define _MD_CLOSE_FILE _MD_CloseFile 228 #define _MD_GETFILEINFO (_PR_MD_GETFILEINFO) 229 #define _MD_GETFILEINFO64 (_PR_MD_GETFILEINFO64) 230 #define _MD_GETOPENFILEINFO (_PR_MD_GETOPENFILEINFO) 231 #define _MD_GETOPENFILEINFO64 (_PR_MD_GETOPENFILEINFO64) 232 #define _MD_STAT (_PR_MD_STAT) 233 #define _MD_RENAME (_PR_MD_RENAME) 234 #define _MD_ACCESS (_PR_MD_ACCESS) 235 #define _MD_DELETE (_PR_MD_DELETE) 236 #define _MD_MKDIR (_PR_MD_MKDIR) 237 #define _MD_MAKE_DIR (_PR_MD_MKDIR) 238 #define _MD_RMDIR (_PR_MD_RMDIR) 239 #define _MD_LOCKFILE (_PR_MD_LOCKFILE) 240 #define _MD_TLOCKFILE (_PR_MD_TLOCKFILE) 241 #define _MD_UNLOCKFILE (_PR_MD_UNLOCKFILE) 242 243 /* --- Socket IO stuff --- */ 244 245 #define TCPV40HDRS 246 #define BSD_SELECT 247 248 /* The ones that don't map directly may need to be re-visited... */ 249 #ifdef XP_OS2_VACPP 250 #define EPIPE EBADF 251 #define EIO ECONNREFUSED 252 #endif 253 #define _MD_EACCES EACCES 254 #define _MD_EADDRINUSE EADDRINUSE 255 #define _MD_EADDRNOTAVAIL EADDRNOTAVAIL 256 #define _MD_EAFNOSUPPORT EAFNOSUPPORT 257 #define _MD_EAGAIN EWOULDBLOCK 258 #define _MD_EALREADY EALREADY 259 #define _MD_EBADF EBADF 260 #define _MD_ECONNREFUSED ECONNREFUSED 261 #define _MD_ECONNRESET ECONNRESET 262 #define _MD_EFAULT SOCEFAULT 263 #define _MD_EINPROGRESS EINPROGRESS 264 #define _MD_EINTR EINTR 265 #define _MD_EINVAL EINVAL 266 #define _MD_EISCONN EISCONN 267 #define _MD_ENETUNREACH ENETUNREACH 268 #define _MD_ENOENT ENOENT 269 #define _MD_ENOTCONN ENOTCONN 270 #define _MD_ENOTSOCK ENOTSOCK 271 #define _MD_EOPNOTSUPP EOPNOTSUPP 272 #define _MD_EWOULDBLOCK EWOULDBLOCK 273 #define _MD_GET_SOCKET_ERROR() sock_errno() 274 #ifndef INADDR_LOOPBACK /* For some reason this is not defined in OS2 tcpip */ 275 /* #define INADDR_LOOPBACK INADDR_ANY */ 276 #endif 277 278 #define _MD_INIT_FILEDESC(fd) 279 extern void _MD_MakeNonblock(PRFileDesc *f); 280 #define _MD_MAKE_NONBLOCK _MD_MakeNonblock 281 #define _MD_INIT_FD_INHERITABLE (_PR_MD_INIT_FD_INHERITABLE) 282 #define _MD_QUERY_FD_INHERITABLE (_PR_MD_QUERY_FD_INHERITABLE) 283 #define _MD_SHUTDOWN (_PR_MD_SHUTDOWN) 284 #define _MD_LISTEN _PR_MD_LISTEN 285 extern PRInt32 _MD_CloseSocket(PRInt32 osfd); 286 #define _MD_CLOSE_SOCKET _MD_CloseSocket 287 #define _MD_SENDTO (_PR_MD_SENDTO) 288 #define _MD_RECVFROM (_PR_MD_RECVFROM) 289 #define _MD_SOCKETPAIR (_PR_MD_SOCKETPAIR) 290 #define _MD_GETSOCKNAME (_PR_MD_GETSOCKNAME) 291 #define _MD_GETPEERNAME (_PR_MD_GETPEERNAME) 292 #define _MD_GETSOCKOPT (_PR_MD_GETSOCKOPT) 293 #define _MD_SETSOCKOPT (_PR_MD_SETSOCKOPT) 294 295 #define _MD_FSYNC _PR_MD_FSYNC 296 #define _MD_SET_FD_INHERITABLE (_PR_MD_SET_FD_INHERITABLE) 297 298 #ifdef _PR_HAVE_ATOMIC_OPS 299 #define _MD_INIT_ATOMIC() 300 #define _MD_ATOMIC_INCREMENT _PR_MD_ATOMIC_INCREMENT 301 #define _MD_ATOMIC_ADD _PR_MD_ATOMIC_ADD 302 #define _MD_ATOMIC_DECREMENT _PR_MD_ATOMIC_DECREMENT 303 #define _MD_ATOMIC_SET _PR_MD_ATOMIC_SET 304 #endif 305 306 #define _MD_INIT_IO (_PR_MD_INIT_IO) 307 #define _MD_PR_POLL (_PR_MD_PR_POLL) 308 309 #define _MD_SOCKET (_PR_MD_SOCKET) 310 extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd); 311 #define _MD_SOCKETAVAILABLE _MD_SocketAvailable 312 #define _MD_PIPEAVAILABLE _MD_SocketAvailable 313 #define _MD_CONNECT (_PR_MD_CONNECT) 314 extern PRInt32 _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen, 315 PRIntervalTime timeout); 316 #define _MD_ACCEPT _MD_Accept 317 #define _MD_BIND (_PR_MD_BIND) 318 #define _MD_RECV (_PR_MD_RECV) 319 #define _MD_SEND (_PR_MD_SEND) 320 321 /* --- Scheduler stuff --- */ 322 /* #define _MD_PAUSE_CPU _PR_MD_PAUSE_CPU */ 323 #define _MD_PAUSE_CPU 324 325 /* --- DIR stuff --- */ 326 #define PR_DIRECTORY_SEPARATOR '\\' 327 #define PR_DIRECTORY_SEPARATOR_STR "\\" 328 #define PR_PATH_SEPARATOR ';' 329 #define PR_PATH_SEPARATOR_STR ";" 330 #define _MD_ERRNO() errno 331 #define _MD_OPEN_DIR (_PR_MD_OPEN_DIR) 332 #define _MD_CLOSE_DIR (_PR_MD_CLOSE_DIR) 333 #define _MD_READ_DIR (_PR_MD_READ_DIR) 334 335 /* --- Segment stuff --- */ 336 #define _MD_INIT_SEGS() 337 #define _MD_ALLOC_SEGMENT(seg, size, vaddr) 0 338 #define _MD_FREE_SEGMENT(seg) 339 340 /* --- Environment Stuff --- */ 341 #define _MD_GET_ENV (_PR_MD_GET_ENV) 342 #define _MD_PUT_ENV (_PR_MD_PUT_ENV) 343 344 /* --- Threading Stuff --- */ 345 #define _MD_DEFAULT_STACK_SIZE 65536L 346 #define _MD_INIT_THREAD (_PR_MD_INIT_THREAD) 347 #define _MD_INIT_ATTACHED_THREAD (_PR_MD_INIT_THREAD) 348 #define _MD_CREATE_THREAD (_PR_MD_CREATE_THREAD) 349 #define _MD_YIELD (_PR_MD_YIELD) 350 #define _MD_SET_PRIORITY (_PR_MD_SET_PRIORITY) 351 #define _MD_CLEAN_THREAD (_PR_MD_CLEAN_THREAD) 352 #define _MD_SETTHREADAFFINITYMASK (_PR_MD_SETTHREADAFFINITYMASK) 353 #define _MD_GETTHREADAFFINITYMASK (_PR_MD_GETTHREADAFFINITYMASK) 354 #define _MD_EXIT_THREAD (_PR_MD_EXIT_THREAD) 355 #define _MD_SUSPEND_THREAD (_PR_MD_SUSPEND_THREAD) 356 #define _MD_RESUME_THREAD (_PR_MD_RESUME_THREAD) 357 #define _MD_SUSPEND_CPU (_PR_MD_SUSPEND_CPU) 358 #define _MD_RESUME_CPU (_PR_MD_RESUME_CPU) 359 #define _MD_WAKEUP_CPUS (_PR_MD_WAKEUP_CPUS) 360 #define _MD_BEGIN_SUSPEND_ALL() 361 #define _MD_BEGIN_RESUME_ALL() 362 #define _MD_END_SUSPEND_ALL() 363 #define _MD_END_RESUME_ALL() 364 365 /* --- Lock stuff --- */ 366 #define _PR_LOCK _MD_LOCK 367 #define _PR_UNLOCK _MD_UNLOCK 368 369 #ifdef USE_RAMSEM 370 #define _MD_NEW_LOCK (_PR_MD_NEW_LOCK) 371 #define _MD_FREE_LOCK(lock) (DosCloseEventSem(((PRAMSEM)(&((lock)->mutex)))->hevSem)) 372 #define _MD_LOCK(lock) (SemRequest486(&((lock)->mutex), -1)) 373 #define _MD_TEST_AND_LOCK(lock) (SemRequest486(&((lock)->mutex), -1),0) 374 #define _MD_UNLOCK(lock) \ 375 PR_BEGIN_MACRO \ 376 if (0 != (lock)->notified.length) { \ 377 md_UnlockAndPostNotifies((lock), NULL, NULL); \ 378 } else { \ 379 SemReleasex86( &(lock)->mutex, 0 ); \ 380 } \ 381 PR_END_MACRO 382 #else 383 #define _MD_NEW_LOCK (_PR_MD_NEW_LOCK) 384 #define _MD_FREE_LOCK(lock) (DosCloseMutexSem((lock)->mutex)) 385 #define _MD_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT)) 386 #define _MD_TEST_AND_LOCK(lock) (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT),0) 387 #define _MD_UNLOCK(lock) \ 388 PR_BEGIN_MACRO \ 389 if (0 != (lock)->notified.length) { \ 390 md_UnlockAndPostNotifies((lock), NULL, NULL); \ 391 } else { \ 392 DosReleaseMutexSem((lock)->mutex); \ 393 } \ 394 PR_END_MACRO 395 #endif 396 397 /* --- lock and cv waiting --- */ 398 #define _MD_WAIT (_PR_MD_WAIT) 399 #define _MD_WAKEUP_WAITER (_PR_MD_WAKEUP_WAITER) 400 401 /* --- CVar ------------------- */ 402 #define _MD_WAIT_CV (_PR_MD_WAIT_CV) 403 #define _MD_NEW_CV (_PR_MD_NEW_CV) 404 #define _MD_FREE_CV (_PR_MD_FREE_CV) 405 #define _MD_NOTIFY_CV (_PR_MD_NOTIFY_CV ) 406 #define _MD_NOTIFYALL_CV (_PR_MD_NOTIFYALL_CV) 407 408 /* XXXMB- the IOQ stuff is certainly not working correctly yet. */ 409 /* extern struct _MDLock _pr_ioq_lock; */ 410 #define _MD_IOQ_LOCK() 411 #define _MD_IOQ_UNLOCK() 412 413 414 /* --- Initialization stuff --- */ 415 #define _MD_START_INTERRUPTS() 416 #define _MD_STOP_INTERRUPTS() 417 #define _MD_DISABLE_CLOCK_INTERRUPTS() 418 #define _MD_ENABLE_CLOCK_INTERRUPTS() 419 #define _MD_BLOCK_CLOCK_INTERRUPTS() 420 #define _MD_UNBLOCK_CLOCK_INTERRUPTS() 421 #define _MD_EARLY_INIT (_PR_MD_EARLY_INIT) 422 #define _MD_FINAL_INIT() 423 #define _MD_INIT_CPUS() 424 #define _MD_INIT_RUNNING_CPU(cpu) 425 426 struct PRProcess; 427 struct PRProcessAttr; 428 429 #define _MD_CREATE_PROCESS _PR_CreateOS2Process 430 extern struct PRProcess * _PR_CreateOS2Process( 431 const char *path, 432 char *const *argv, 433 char *const *envp, 434 const struct PRProcessAttr *attr 435 ); 436 437 #define _MD_DETACH_PROCESS _PR_DetachOS2Process 438 extern PRStatus _PR_DetachOS2Process(struct PRProcess *process); 439 440 /* --- Wait for a child process to terminate --- */ 441 #define _MD_WAIT_PROCESS _PR_WaitOS2Process 442 extern PRStatus _PR_WaitOS2Process(struct PRProcess *process, 443 PRInt32 *exitCode); 444 445 #define _MD_KILL_PROCESS _PR_KillOS2Process 446 extern PRStatus _PR_KillOS2Process(struct PRProcess *process); 447 448 #define _MD_CLEANUP_BEFORE_EXIT() 449 #define _MD_EXIT (_PR_MD_EXIT) 450 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 451 PR_BEGIN_MACRO \ 452 *status = PR_TRUE; \ 453 PR_END_MACRO 454 #define _MD_SWITCH_CONTEXT 455 #define _MD_RESTORE_CONTEXT 456 457 /* --- Intervals --- */ 458 #define _MD_INTERVAL_INIT (_PR_MD_INTERVAL_INIT) 459 #define _MD_GET_INTERVAL (_PR_MD_GET_INTERVAL) 460 #define _MD_INTERVAL_PER_SEC (_PR_MD_INTERVAL_PER_SEC) 461 #define _MD_INTERVAL_PER_MILLISEC() (_PR_MD_INTERVAL_PER_SEC() / 1000) 462 #define _MD_INTERVAL_PER_MICROSEC() (_PR_MD_INTERVAL_PER_SEC() / 1000000) 463 464 /* --- Native-Thread Specific Definitions ------------------------------- */ 465 466 typedef struct __NSPR_TLS 467 { 468 struct PRThread *_pr_thread_last_run; 469 struct PRThread *_pr_currentThread; 470 struct _PRCPU *_pr_currentCPU; 471 } _NSPR_TLS; 472 473 extern _NSPR_TLS* pThreadLocalStorage; 474 NSPR_API(void) _PR_MD_ENSURE_TLS(void); 475 476 #define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread 477 extern struct PRThread * _MD_CURRENT_THREAD(void); 478 #define _MD_SET_CURRENT_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentThread = (_thread) 479 480 #define _MD_LAST_THREAD() pThreadLocalStorage->_pr_thread_last_run 481 #define _MD_SET_LAST_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_thread_last_run = (_thread) 482 483 #define _MD_CURRENT_CPU() pThreadLocalStorage->_pr_currentCPU 484 #define _MD_SET_CURRENT_CPU(_cpu) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentCPU = (_cpu) 485 486 /* lth. #define _MD_SET_INTSOFF(_val) (_pr_ints_off = (_val)) */ 487 /* lth. #define _MD_GET_INTSOFF() _pr_ints_off */ 488 /* lth. #define _MD_INCREMENT_INTSOFF() (_pr_ints_off++) */ 489 /* lth. #define _MD_DECREMENT_INTSOFF() (_pr_ints_off--) */ 490 491 /* --- Scheduler stuff --- */ 492 #define LOCK_SCHEDULER() 0 493 #define UNLOCK_SCHEDULER() 0 494 #define _PR_LockSched() 0 495 #define _PR_UnlockSched() 0 496 497 /* --- Initialization stuff --- */ 498 #define _MD_INIT_LOCKS() 499 500 /* --- Stack stuff --- */ 501 #define _MD_INIT_STACK(stack, redzone) 502 #define _MD_CLEAR_STACK(stack) 503 504 /* --- Memory-mapped files stuff --- not implemented on OS/2 */ 505 506 struct _MDFileMap { 507 PRInt8 unused; 508 }; 509 510 extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size); 511 #define _MD_CREATE_FILE_MAP _MD_CreateFileMap 512 513 extern PRInt32 _MD_GetMemMapAlignment(void); 514 #define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment 515 516 extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset, 517 PRUint32 len); 518 #define _MD_MEM_MAP _MD_MemMap 519 520 extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size); 521 #define _MD_MEM_UNMAP _MD_MemUnmap 522 523 extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap); 524 #define _MD_CLOSE_FILE_MAP _MD_CloseFileMap 525 526 /* Some stuff for setting up thread contexts */ 527 typedef ULONG DWORD, *PDWORD; 528 529 /* The following definitions and two structures are new in OS/2 Warp 4.0. 530 */ 531 #ifndef CONTEXT_CONTROL 532 #define CONTEXT_CONTROL 0x00000001 533 #define CONTEXT_INTEGER 0x00000002 534 #define CONTEXT_SEGMENTS 0x00000004 535 #define CONTEXT_FLOATING_POINT 0x00000008 536 #define CONTEXT_FULL 0x0000000F 537 538 #pragma pack(2) 539 typedef struct _FPREG { 540 ULONG losig; /* Low 32-bits of the significand. */ 541 ULONG hisig; /* High 32-bits of the significand. */ 542 USHORT signexp; /* Sign and exponent. */ 543 } FPREG; 544 typedef struct _CONTEXTRECORD { 545 ULONG ContextFlags; 546 ULONG ctx_env[7]; 547 FPREG ctx_stack[8]; 548 ULONG ctx_SegGs; /* GS register. */ 549 ULONG ctx_SegFs; /* FS register. */ 550 ULONG ctx_SegEs; /* ES register. */ 551 ULONG ctx_SegDs; /* DS register. */ 552 ULONG ctx_RegEdi; /* EDI register. */ 553 ULONG ctx_RegEsi; /* ESI register. */ 554 ULONG ctx_RegEax; /* EAX register. */ 555 ULONG ctx_RegEbx; /* EBX register. */ 556 ULONG ctx_RegEcx; /* ECX register. */ 557 ULONG ctx_RegEdx; /* EDX register. */ 558 ULONG ctx_RegEbp; /* EBP register. */ 559 ULONG ctx_RegEip; /* EIP register. */ 560 ULONG ctx_SegCs; /* CS register. */ 561 ULONG ctx_EFlags; /* EFLAGS register. */ 562 ULONG ctx_RegEsp; /* ESP register. */ 563 ULONG ctx_SegSs; /* SS register. */ 564 } CONTEXTRECORD, *PCONTEXTRECORD; 565 #pragma pack() 566 #endif 567 568 extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD); 569 unsigned long _System _DLL_InitTerm( unsigned long mod_handle, unsigned long flag); 570 571 /* 572 #define _pr_tid (((PTIB2)_getTIBvalue(offsetof(TIB, tib_ptib2)))->tib2_ultid) 573 #define _pr_current_Thread (_system_tls[_pr_tid-1].__pr_current_thread) 574 */ 575 576 /* Some simple mappings of Windows API's to OS/2 API's to make our lives a 577 * little bit easier. Only add one here if it is a DIRECT mapping. We are 578 * not emulating anything. Just mapping. 579 */ 580 #define FreeLibrary(x) DosFreeModule((HMODULE)x) 581 #define OutputDebugString(x) 582 583 extern int _MD_os2_get_nonblocking_connect_error(int osfd); 584 585 #endif /* nspr_os2_defs_h___ */ 586
