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) 59typedef struct _RAMSEM 60{ 61 ULONG ulTIDPID; 62 ULONG hevSem; 63 ULONG cLocks; 64 USHORT cWaiting; 65 USHORT cPosts; 66} RAMSEM, *PRAMSEM; 67 68typedef struct _CRITICAL_SECTION 69{ 70 ULONG ulReserved[4]; /* Same size as RAMSEM */ 71} CRITICAL_SECTION, *PCRITICAL_SECTION, *LPCRITICAL_SECTION; 72#pragma pack(4) 73 74APIRET _Optlink SemRequest486(PRAMSEM, ULONG); 75APIRET _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 --- */ 98extern struct PRLock *_pr_schedLock; 99 100/* --- Typedefs --- */ 101typedef void (*FiberFunc)(void *); 102 103#define PR_NUM_GCREGS 8 104typedef PRInt32 PR_CONTEXT_TYPE[PR_NUM_GCREGS]; 105#define GC_VMBASE 0x40000000 106#define GC_VMLIMIT 0x00FFFFFF 107typedef 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 115struct _MDSemaphore { 116 HEV sem; 117}; 118 119struct _MDCPU { 120 int unused; 121}; 122 123struct _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 139struct _MDThreadStack { 140 PRUint32 magic; /* for debugging */ 141}; 142 143struct _MDSegment { 144 PRUint32 magic; /* for debugging */ 145}; 146 147#undef PROFILE_LOCKS 148 149struct _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 157struct _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 168typedef struct _MDNotified _MDNotified; 169struct _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 180struct _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 200struct _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 210struct _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) 226extern 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) 279extern 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 285extern 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) 310extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd); 311#define _MD_SOCKETAVAILABLE _MD_SocketAvailable 312#define _MD_PIPEAVAILABLE _MD_SocketAvailable 313#define _MD_CONNECT (_PR_MD_CONNECT) 314extern 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 426struct PRProcess; 427struct PRProcessAttr; 428 429#define _MD_CREATE_PROCESS _PR_CreateOS2Process 430extern 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 438extern PRStatus _PR_DetachOS2Process(struct PRProcess *process); 439 440/* --- Wait for a child process to terminate --- */ 441#define _MD_WAIT_PROCESS _PR_WaitOS2Process 442extern PRStatus _PR_WaitOS2Process(struct PRProcess *process, 443 PRInt32 *exitCode); 444 445#define _MD_KILL_PROCESS _PR_KillOS2Process 446extern 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 466typedef 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 473extern _NSPR_TLS* pThreadLocalStorage; 474NSPR_API(void) _PR_MD_ENSURE_TLS(void); 475 476#define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread 477extern 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 506struct _MDFileMap { 507 PRInt8 unused; 508}; 509 510extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size); 511#define _MD_CREATE_FILE_MAP _MD_CreateFileMap 512 513extern PRInt32 _MD_GetMemMapAlignment(void); 514#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment 515 516extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset, 517 PRUint32 len); 518#define _MD_MEM_MAP _MD_MemMap 519 520extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size); 521#define _MD_MEM_UNMAP _MD_MemUnmap 522 523extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap); 524#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap 525 526/* Some stuff for setting up thread contexts */ 527typedef 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) 539typedef 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; 544typedef 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 568extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD); 569unsigned 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 583extern int _MD_os2_get_nonblocking_connect_error(int osfd); 584 585#endif /* nspr_os2_defs_h___ */ 586