source: trunk/src/kernel32/oslibthread.cpp@ 22018

Last change on this file since 22018 was 21302, checked in by ydario, 16 years ago

Kernel32 updates.
File size: 6.3 KB
Line 
1/* $Id: oslibthread.cpp,v 1.1 2003-03-27 14:00:53 sandervl Exp $ */
2/*
3 * Wrappers for OS/2 Dos* API (Thread)
4 *
5 * Copyright 1998-2002 Sander van Leeuwen (sandervl@xs4all.nl)
6 * Copyright 2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12
13
14/*******************************************************************************
15* Header Files *
16*******************************************************************************/
17#define INCL_BASE
18#define INCL_DOSEXCEPTIONS
19#define INCL_DOSMEMMGR
20#define INCL_DOSPROCESS
21#define INCL_DOSFILEMGR
22#define INCL_DOSERRORS
23#define INCL_DOSDEVIOCTL
24#define INCL_DOSDEVICES
25#define INCL_NPIPES
26#include <os2wrap.h> //Odin32 OS/2 api wrappers
27#include <stdlib.h>
28#include <stdio.h>
29#include <string.h>
30#include <ctype.h>
31#include <win32api.h>
32#include <winconst.h>
33#include <dbglog.h>
34#include "oslibdos.h"
35#include "oslibthread.h"
36#include "exceptions.h"
37
38#define DBG_LOCALLOG DBG_oslibthread
39#include "dbglocal.h"
40
41//******************************************************************************
42//******************************************************************************
43DWORD OSLibDosSetPriority(ULONG tid, int priority)
44{
45 DWORD ret, os2priorityclass;
46 LONG os2prioritydelta;
47 APIRET rc;
48
49 switch(priority)
50 {
51 case THREAD_PRIORITY_IDLE_W:
52 os2priorityclass = PRTYC_IDLETIME;
53 os2prioritydelta = 0;
54 break;
55 case THREAD_PRIORITY_LOWEST_W:
56 os2priorityclass = PRTYC_REGULAR;
57 os2prioritydelta = PRTYD_MINIMUM;
58 break;
59 case THREAD_PRIORITY_BELOW_NORMAL_W:
60 os2priorityclass = PRTYC_REGULAR;
61 os2prioritydelta = -15;
62 break;
63 case THREAD_PRIORITY_NORMAL_W:
64 os2priorityclass = PRTYC_REGULAR;
65 os2prioritydelta = 0;
66 break;
67 case THREAD_PRIORITY_ABOVE_NORMAL_W:
68 os2priorityclass = PRTYC_REGULAR;
69 os2prioritydelta = 15;
70 break;
71 case THREAD_PRIORITY_HIGHEST_W:
72 os2priorityclass = PRTYC_REGULAR;
73 os2prioritydelta = PRTYD_MAXIMUM;
74 break;
75 case THREAD_PRIORITY_TIME_CRITICAL_W:
76 //NOTE: There is code relying on the fact that win32 threads can never
77 // have the maximum priority available in OS/2!!
78 // (e.g. SetThreadContext)
79 dprintf(("PRTYC_TIMECRITICAL!!"));
80 os2priorityclass = PRTYC_TIMECRITICAL;
81 os2prioritydelta = 0;
82 break;
83 default:
84 dprintf(("!WARNING!: Invalid priority!!"));
85 SetLastError(ERROR_INVALID_PARAMETER_W);
86 return ERROR_INVALID_PARAMETER_W;
87 }
88 rc = DosSetPriority(PRTYS_THREAD, os2priorityclass, os2prioritydelta, tid);
89 ret = error2WinError(rc, ERROR_INVALID_PARAMETER);
90 SetLastError(ret);
91 return ret;
92}
93//******************************************************************************
94//Useful to temporarily boost the priority to max to ensure it's scheduled first
95//Windows threads never receive such a high priority (time critical, delta 0 = max)
96//******************************************************************************
97void OSLibDosSetMaxPriority(ULONG tid)
98{
99 APIRET rc;
100
101 dprintf(("OSLibDosSetMaxPriority for %x", tid));
102 rc = DosSetPriority(PRTYS_THREAD, PRTYC_TIMECRITICAL, PRTYD_MAXIMUM, tid);
103 if(rc != NO_ERROR) {
104 DebugInt3();
105 }
106}
107//******************************************************************************
108//******************************************************************************
109void OSLibDosExitThread(ULONG retcode)
110{
111 DosExit(EXIT_THREAD, retcode);
112}
113//******************************************************************************
114//******************************************************************************
115BOOL OSLibQueryThreadContext(ULONG ulThreadId, ULONG teb_sel, CONTEXT *lpContext)
116{
117 CONTEXTRECORD ctxrec;
118 APIRET rc;
119 int nrtries = 0;
120
121tryagain:
122 rc = DosQueryThreadContext(ulThreadId, CONTEXT_FULL, &ctxrec);
123 if(rc != NO_ERROR) {
124 dprintf(("ERROR: DosQueryThreadContext failed with rc %d!!", rc));
125//testestest
126 if((rc == ERROR_NOT_FROZEN || rc == ERROR_INVALID_THREADID) && ++nrtries < 5) {
127 DosSleep(50);
128 goto tryagain;
129 }
130 DebugInt3();
131 SetLastError(error2WinError(rc, ERROR_INVALID_PARAMETER));
132 return FALSE;
133 }
134 if(lpContext->ContextFlags & WINCONTEXT_CONTROL) {
135 lpContext->Ebp = ctxrec.ctx_RegEbp;
136 lpContext->Eip = ctxrec.ctx_RegEip;
137 lpContext->SegCs = ctxrec.ctx_SegCs;
138 lpContext->EFlags = ctxrec.ctx_EFlags;
139 lpContext->Esp = ctxrec.ctx_RegEsp;
140 lpContext->SegSs = ctxrec.ctx_SegSs;
141 }
142 if(lpContext->ContextFlags & WINCONTEXT_INTEGER) {
143 lpContext->Edi = ctxrec.ctx_RegEdi;
144 lpContext->Esi = ctxrec.ctx_RegEsi;
145 lpContext->Ebx = ctxrec.ctx_RegEbx;
146 lpContext->Edx = ctxrec.ctx_RegEdx;
147 lpContext->Ecx = ctxrec.ctx_RegEcx;
148 lpContext->Eax = ctxrec.ctx_RegEax;
149 }
150 if(lpContext->ContextFlags & WINCONTEXT_SEGMENTS) {
151 lpContext->SegGs = ctxrec.ctx_SegGs;
152// This resets FS to 0x150B - we DON'T want that!!
153// lpContext->SegFs = ctxrec.ctx_SegFs;
154 lpContext->SegFs = teb_sel;
155 lpContext->SegEs = ctxrec.ctx_SegEs;
156 lpContext->SegDs = ctxrec.ctx_SegDs;
157 }
158 if(lpContext->ContextFlags & WINCONTEXT_FLOATING_POINT) {
159 //TODO: First 7 dwords the same?
160 memcpy(&lpContext->FloatSave, ctxrec.ctx_env, sizeof(ctxrec.ctx_env));
161 memcpy(&lpContext->FloatSave.RegisterArea, ctxrec.ctx_stack, sizeof(ctxrec.ctx_stack));
162 }
163 SetLastError(ERROR_SUCCESS_W);
164 return TRUE;
165}
166//******************************************************************************
167//******************************************************************************
168void OSLibDisableThreadSwitching()
169{
170 DosEnterCritSec();
171}
172//******************************************************************************
173//******************************************************************************
174void OSLibEnableThreadSwitching()
175{
176 DosExitCritSec();
177}
178//******************************************************************************
179//******************************************************************************
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