source: trunk/src/kernel32/hmsemaphore.cpp@ 22145

Last change on this file since 22145 was 21302, checked in by ydario, 16 years ago

Kernel32 updates.
File size: 6.0 KB
Line 
1/* $Id: hmsemaphore.cpp,v 1.10 2003-02-04 11:29:00 sandervl Exp $ */
2
3/*
4 * Win32 Semaphore implementation
5 *
6 * TODO: Inheritance
7 * TODO: Does DCE_POSTONE work in Warp 3 or 4 with no FP applied?
8 * TODO: No inheritance when CreateSemaphore is called for existing named event semaphore?
9 * (see HMCreateSemaphore in handlemanager.cpp)
10 * TODO: OpenSemaphore does not work. (get SEM_INFO pointer)
11 * TODO: Name collisions with files & mutex not allowed. Check if this can happen in OS/2
12 *
13 * TODO: Use DosQueryEventSem to test the posted count against maximum count!!
14 *
15 * Project Odin Software License can be found in LICENSE.TXT
16 *
17 * Copyright 2001 Sander van Leeuwen (sandervl@xs4all.nl)
18 */
19
20#undef DEBUG_LOCAL
21//#define DEBUG_LOCAL
22
23
24/*****************************************************************************
25 * Remark *
26 *****************************************************************************
27
28 */
29
30
31/*****************************************************************************
32 * Includes *
33 *****************************************************************************/
34
35#include <os2win.h>
36#include <stdlib.h>
37#include <string.h>
38#include <heapshared.h>
39#include "unicode.h"
40#include "misc.h"
41
42#include "HandleManager.H"
43#include "HMSemaphore.h"
44#include "oslibdos.h"
45
46#define DBG_LOCALLOG DBG_hmsemaphore
47#include "dbglocal.h"
48
49/*****************************************************************************
50 * Defines *
51 *****************************************************************************/
52
53/*****************************************************************************
54 * Structures *
55 *****************************************************************************/
56
57/*****************************************************************************
58 * Local Prototypes *
59 *****************************************************************************/
60
61
62/*****************************************************************************
63 * Name : HMCreateSemaphore
64 * Purpose : router function for CreateSemaphore
65 * Parameters:
66 * Variables :
67 * Result :
68 * Remark :
69 * Status :
70 *
71 * Author : Patrick Haller [Tue, 1999/07/06 20:44]
72 *****************************************************************************/
73
74DWORD HMDeviceSemaphoreClass::CreateSemaphore(PHMHANDLEDATA pHMHandleData,
75 LPSECURITY_ATTRIBUTES lpsa,
76 LONG lInitialCount,
77 LONG lMaximumCount,
78 LPCTSTR lpszSemaphoreName)
79{
80 HANDLE hOpen32;
81
82 dprintf(("KERNEL32: HandleManager::Semaphore::CreateSemaphore(%08xh,%08xh,%08xh,%08xh,%s)\n",
83 pHMHandleData,
84 lpsa,
85 lInitialCount,
86 lMaximumCount,
87 lpszSemaphoreName));
88
89 hOpen32 = O32_CreateSemaphore(lpsa, // call Open32
90 lInitialCount,
91 lMaximumCount,
92 (LPTSTR)lpszSemaphoreName);
93
94 dprintf(("KERNEL32: HandleManager::Semaphore::CreateSemaphore hOpen32 = %p, pHMHandleData->hHMHandle = %p\n", hOpen32, pHMHandleData->hHMHandle));
95
96 if (0 != hOpen32) // check success
97 {
98 pHMHandleData->hHMHandle = hOpen32; // save handle
99 return (NO_ERROR);
100 }
101 else
102 return (GetLastError());
103}
104
105
106/*****************************************************************************
107 * Name : HMOpenSemaphore
108 * Purpose : router function for OpenSemaphore
109 * Parameters:
110 * Variables :
111 * Result :
112 * Remark :
113 * Status :
114 *
115 * Author : Patrick Haller [Tue, 1999/07/06 20:44]
116 *****************************************************************************/
117
118DWORD HMDeviceSemaphoreClass::OpenSemaphore(PHMHANDLEDATA pHMHandleData,
119 BOOL fInheritHandle,
120 LPCTSTR lpszSemaphoreName)
121{
122 HANDLE hOpen32;
123
124 dprintf(("KERNEL32: HandleManager::Semaphore::OpenSemaphore(%08xh,%08xh,%s)\n",
125 pHMHandleData,
126 fInheritHandle,
127 lpszSemaphoreName));
128
129 hOpen32 = O32_OpenSemaphore(pHMHandleData->dwAccess, // call Open32
130 fInheritHandle,
131 lpszSemaphoreName);
132
133 if (0 != hOpen32) // check success
134 {
135 pHMHandleData->hHMHandle = hOpen32; // save handle
136 return (NO_ERROR);
137 }
138 else
139 return (GetLastError());
140}
141
142
143/*****************************************************************************
144 * Name : HMReleaseSemaphore
145 * Purpose : router function for ReleaseSemaphore
146 * Parameters:
147 * Variables :
148 * Result :
149 * Remark :
150 * Status :
151 *
152 * Author : Patrick Haller [Tue, 1999/07/06 20:44]
153 *****************************************************************************/
154
155BOOL HMDeviceSemaphoreClass::ReleaseSemaphore(PHMHANDLEDATA pHMHandleData,
156 LONG cReleaseCount,
157 LPLONG lpPreviousCount)
158{
159 dprintf(("KERNEL32: HandleManager::Semaphore::ReleaseSemaphore(%08xh,%08xh,%08xh)\n",
160 pHMHandleData->hHMHandle,
161 cReleaseCount,
162 lpPreviousCount));
163
164 return (O32_ReleaseSemaphore(pHMHandleData->hHMHandle,
165 cReleaseCount,
166 lpPreviousCount));
167}
168
169//******************************************************************************
170//******************************************************************************
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