source: trunk/src/kernel32/async.cpp@ 2802

Last change on this file since 2802 was 2802, checked in by sandervl, 26 years ago

Added new logging feature
File size: 6.6 KB
Line 
1/* $Id: async.cpp,v 1.7 2000-02-16 14:25:30 sandervl Exp $ */
2
3/*
4 * Win32 Asynchronous I/O Subsystem for OS/2
5 *
6 * 1998/04/10 PH Patrick Haller (haller@zebra.fh-weingarten.de)
7 *
8 * @(#) Async.Cpp 1.0.0 1998/04/10 PH start
9 *
10 * Project Odin Software License can be found in LICENSE.TXT
11 *
12 */
13
14#ifndef _ASYNCIOSUBSYSTEM_H_
15#define _ASYNCIOSUBSYSTEM_H_
16
17
18/*****************************************************************************
19 * Remark *
20 *****************************************************************************
21
22 ReadFileEx
23
24 */
25
26
27
28/*****************************************************************************
29 * Includes *
30 *****************************************************************************/
31
32#define INCL_WIN
33#define INCL_DOSMEMMGR
34#define INCL_DOSSEMAPHORES
35#define INCL_DOSERRORS
36#define INCL_DOSPROCESS
37#define INCL_DOSMODULEMGR
38#define INCL_VIO
39#define INCL_AVIO
40#include <os2wrap.h> //Odin32 OS/2 api wrappers
41#include <builtin.h>
42
43#include <stdlib.h>
44#include <string.h>
45#include "win32type.h"
46#include "misc.h"
47#include "unicode.h"
48
49#include "conwin.h" // Windows Header for console only
50#include "handlemanager.h"
51
52#define DBG_LOCALLOG DBG_async
53#include "dbglocal.h"
54
55
56/*****************************************************************************
57 * Defines & Macros *
58 *****************************************************************************/
59
60
61/*****************************************************************************
62 * Structures *
63 *****************************************************************************/
64
65typedef struct _IORequest
66{
67 struct _IORequest *pNext; /* pointer to next I/O request */
68
69 APIRET rc; /* result code of I/O request */
70
71} IOREQUEST, *PIOREQUEST;
72
73
74typedef struct _Globals
75{
76 HEV hevIOEvent; /* asynchronous I/O event completed ! */
77 TID tidIO; /* I/O thread */
78} GLOBALS, *PGLOBALS;
79
80static GLOBALS Globals;
81
82
83/*****************************************************************************
84 * Name :
85 * Purpose :
86 * Parameters:
87 * Variables :
88 * Result :
89 * Remark :
90 * Status :
91 *
92 * Author : Patrick Haller [Tue, 1998/02/10 01:55]
93 *****************************************************************************/
94
95DWORD WIN32API SleepEx(DWORD dwTimeout,
96 BOOL fAlertable)
97{
98
99 dprintf(("KERNEL32: SleepEx(%u,%u)\n",
100 dwTimeout,
101 fAlertable));
102
103 /* @@@PH could be implemented as a timed wait on a event semaphore */
104 /* for the WAIT_IO_COMPLETION flag */
105
106 if (fAlertable == FALSE)
107 DosSleep(dwTimeout);
108 else {
109 dprintf(("SleepEx: Wait for io completion not supported!"));
110 DosSleep(1);
111 }
112
113 return (0);
114}
115
116
117/*****************************************************************************
118 * Name : BOOL ReadFileEx
119 * Purpose : The ReadFileEx function reads data from a file asynchronously.
120 * It is designed solely for asynchronous operation, unlike the
121 * ReadFile function, which is designed for both synchronous and
122 * asynchronous operation. ReadFileEx lets an application perform
123 * other processing during a file read operation.
124 * The ReadFileEx function reports its completion status asynchronously,
125 * calling a specified completion routine when reading is completed
126 * and the calling thread is in an alertable wait state.
127 * Parameters: HANDLE hFile handle of file to read
128 * LPVOID lpBuffer address of buffer
129 * DWORD nNumberOfBytesToRead number of bytes to read
130 * LPOVERLAPPED lpOverlapped address of offset
131 * LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine address of completion routine
132 * Variables :
133 * Result : TRUE / FALSE
134 * Remark :
135 * Status : UNTESTED STUB
136 *
137 * Author : Patrick Haller [Mon, 1998/06/15 08:00]
138 *****************************************************************************/
139
140#define LPOVERLAPPED_COMPLETION_ROUTINE LPVOID
141
142DWORD WIN32API ReadFileEx(HANDLE hFile,
143 LPVOID lpBuffer,
144 DWORD nNumberOfBytesToRead,
145 LPOVERLAPPED lpOverlapped,
146 LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
147{
148 dprintf(("Kernel32: ReadFileEx(%08xh,%08xh,%08xh,%08xh,%08xh) not implemented.\n",
149 hFile,
150 lpBuffer,
151 nNumberOfBytesToRead,
152 lpOverlapped,
153 lpCompletionRoutine));
154
155
156 return (FALSE);
157}
158
159
160/*****************************************************************************
161 * Name : BOOL WriteFileEx
162 * Purpose : The WriteFileEx function writes data to a file. It is designed
163 * solely for asynchronous operation, unlike WriteFile, which is
164 * designed for both synchronous and asynchronous operation.
165 * WriteFileEx reports its completion status asynchronously,
166 * calling a specified completion routine when writing is completed
167 * and the calling thread is in an alertable wait state.
168 * Parameters: HANDLE hFile handle of file to write
169 * LPVOID lpBuffer address of buffer
170 * DWORD nNumberOfBytesToRead number of bytes to write
171 * LPOVERLAPPED lpOverlapped address of offset
172 * LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine address of completion routine
173 * Variables :
174 * Result : TRUE / FALSE
175 * Remark :
176 * Status : UNTESTED STUB
177 *
178 * Author : Patrick Haller [Mon, 1998/06/15 08:00]
179 *****************************************************************************/
180
181DWORD WIN32API WriteFileEx(HANDLE hFile,
182 LPVOID lpBuffer,
183 DWORD nNumberOfBytesToWrite,
184 LPOVERLAPPED lpOverlapped,
185 LPOVERLAPPED_COMPLETION_ROUTINE lpCompletionRoutine)
186{
187 dprintf(("Kernel32: WriteFileEx(%08xh,%08xh,%08xh,%08xh,%08xh) not implemented.\n",
188 hFile,
189 lpBuffer,
190 nNumberOfBytesToWrite,
191 lpOverlapped,
192 lpCompletionRoutine));
193
194
195 return (FALSE);
196}
197
198
199#endif /* _ASYNCIOSUBSYSTEM_H_ */
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