source: branches/mini/src/win32k/test/TstProcessReadWrite.c

Last change on this file was 4787, checked in by bird, 25 years ago

Changed email address... (may some dll fixes changes too.)
File size: 6.7 KB
Line 
1/* $Id: TstProcessReadWrite.c,v 1.2 2000-12-11 06:53:56 bird Exp $
2 *
3 * Test program for the ProcessReadWrite API.
4 * The testprogram will spawn a child process which it will interact with.
5 * The interaction is as follows:
6 * - Parent reads dataarea in the datasegemnt and compare it with is's
7 * own duplicate area.
8 * - Parent writes some text data to the child process.
9 * - Parent process reads the text data back again and displays it.
10 *
11 * Copyright (c) 2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
12 *
13 * Project Odin Software License can be found in LICENSE.TXT
14 *
15 */
16
17/*******************************************************************************
18* Defined Constants And Macros *
19*******************************************************************************/
20#define INCL_BASE
21
22/*******************************************************************************
23* Header Files *
24*******************************************************************************/
25#include <os2.h>
26
27#include <string.h>
28#include <stdio.h>
29
30#include <win32k.h>
31
32/*******************************************************************************
33* Global Variables *
34*******************************************************************************/
35/* The data we read from the child process */
36static char szDataRead[] =
37 "* Test program for the ProcessReadWrite API. \n"
38 "* The testprogram will spawn a child process which it will interact with. \n"
39 "* The interaction is as follows: \n"
40 "* - Parent reads dataarea in the datasegemnt and compare it with is's \n"
41 "* own duplicate area. \n"
42 "* - Parent writes some text data to the child process. \n"
43 "* - Parent process reads the text data back again and displays it. \n";
44
45/* The data we write to the child process (overwrites szDataRead) */
46static char szDataWrite[] =
47 " write data - write data - write data - write data - write data - write data \n"
48 " write data - write data - write data - write data - write data - write data \n"
49 " write data - write data - write data - write data - write data - write data \n"
50 " write data - write data - write data - write data - write data - write data \n"
51 " write data - write data - write data - write data - write data - write data \n"
52 " write data - write data - write data - write data - write data - write data \n";
53
54/* Buffer used to read into */
55static char szReadBuffer[1024];
56
57
58/**
59 *
60 *
61 * @returns
62 * @param
63 * @equiv
64 * @time
65 * @sketch
66 * @status
67 * @author knut st. osmundsen (knut.stange.osmundsen@mynd.no)
68 * @remark
69 */
70int main(int argc, char **argv)
71{
72 RESULTCODES resc;
73 APIRET rc;
74 int rcTest;
75 char szArg[1024];
76
77 /* Check if we're the child process */
78 if (argc == 2 && strcmp(argv[1], "2ndProcess") == 0)
79 {
80 DosSleep(-1);
81 return 0;
82 }
83
84 /* initiate Win32k */
85 rc = libWin32kInit();
86 if (rc != NO_ERROR)
87 {
88 printf("libWin32kInit failed with rc=%d\n", rc);
89 return rc;
90 }
91
92 /* Start child process */
93 szArg[sprintf(szArg, "%s 2ndProcess", argv[0]) - 11] = '\0';
94 rc = DosExecPgm(NULL, 0, EXEC_ASYNC, szArg, NULL, &resc, szArg);
95 if (rc != NO_ERROR)
96 {
97 printf("Failed to spawn child process. DosExecPgm failed with rc=%d\n", rc);
98 return rc;
99 }
100 printf("Created child process with PID = %d\n", resc.codeTerminate);
101
102 /*
103 * Use the API.
104 */
105
106 /* 1. Read data block from child process. */
107 rcTest = W32kProcessReadWrite(resc.codeTerminate, sizeof(szDataRead), szDataRead, szReadBuffer, TRUE);
108 if (rcTest == NO_ERROR)
109 {
110 rcTest = memcmp(szDataRead, szReadBuffer, sizeof(szDataRead));
111 if (rcTest == 0)
112 {
113 printf("Read successfull:\n%.*s\n\n", sizeof(szDataRead), szReadBuffer);
114
115 /* 2. Write datablock to childprocess */
116 rcTest = W32kProcessReadWrite(resc.codeTerminate, sizeof(szDataWrite), szDataWrite, szDataRead, FALSE);
117 if (rcTest == NO_ERROR)
118 {
119 printf("Wrote successfully to child\n");
120 /* 2b. Read it back again */
121 rcTest = W32kProcessReadWrite(resc.codeTerminate, sizeof(szDataWrite), szDataRead, szReadBuffer, TRUE);
122 if (rcTest == NO_ERROR)
123 {
124 rcTest = memcmp(szDataWrite, szReadBuffer, sizeof(szDataWrite));
125 if (rcTest == 0)
126 {
127 printf("Read successfull the data which we wrote:\n%.*s\n\n", sizeof(szDataWrite), szReadBuffer);
128 }
129 else
130 printf("The data read back was not equal!\n");
131 }
132 else
133 printf("Read back failed with rc=%d\n", rcTest);
134 }
135 else
136 printf("Failed to write data to process. rc=%d\n", rc);
137 }
138 else
139 printf("The data read was not equal!\n");
140 }
141 else
142 printf("First read failed with rc=%d\n", rcTest);
143
144 /*
145 * Negative test... Read data at invalid addresses.
146 */
147 if (rcTest == NO_ERROR)
148 {
149 rcTest = W32kProcessReadWrite(resc.codeTerminate, 10, (PVOID)0xffffff00, szReadBuffer, TRUE);
150 if (rcTest != NO_ERROR)
151 {
152 rcTest = W32kProcessReadWrite(resc.codeTerminate, 10, (PVOID)0x00000100, szReadBuffer, TRUE);
153 if (rcTest != NO_ERROR)
154 {
155 rcTest = W32kProcessReadWrite(resc.codeTerminate, 10, (PVOID)0x001f000, szReadBuffer, TRUE); /* shouldn't be anything here! check map file... */
156 if (rcTest != NO_ERROR)
157 {
158
159 }
160 else
161 printf("Error - negative test: read at 0x001f000\n");
162 }
163 else
164 printf("Error - negative test: read at 0x00000100\n");
165 }
166 else
167 printf("Error - negative test: read at 0xffffff00\n");
168
169 rcTest = (rcTest == 0) ? -1 : 0;
170 }
171
172 /*
173 * Test result.
174 */
175 if (rcTest == 0)
176 {
177 printf(" ... Test ended successfully! ...\n");
178 }
179 else
180 printf(" !!!!!!! Test failed (%3d) !!!!!!!\n", rcTest);
181
182 /*
183 * Cleanup.
184 */
185 /* Kill child. */
186 rc = DosKillProcess(DKP_PROCESS,resc.codeTerminate);
187 if (rc != NO_ERROR)
188 printf("Failed to kill child! rc=%d\n", rc);
189
190 /* Terminate Win32k library. */
191 libWin32kTerm();
192
193 return rcTest;
194}
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