1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 /***********************************************************************
7 **
8 ** Name: fileio.c
9 **
10 ** Description: Program to copy one file to another.
11 **
12 ** Modification History:
13 ** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
14 ** The debug mode will print all of the printfs associated with this test.
15 ** The regress mode will be the default mode. Since the regress tool limits
16 ** the output to a one line status:PASS or FAIL,all of the printf statements
17 ** have been handled with an if (debug_mode) statement.
18 ** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
19 ** recognize the return code from tha main program.
20 ** 12-June-97 Revert to return code 0 and 1, remove debug option (obsolete).
21 ***********************************************************************/
22
23 /***********************************************************************
24 ** Includes
25 ***********************************************************************/
26 #include "prinit.h"
27 #include "prthread.h"
28 #include "prlock.h"
29 #include "prcvar.h"
30 #include "prmon.h"
31 #include "prmem.h"
32 #include "prio.h"
33 #include "prlog.h"
34
35 #include <stdio.h>
36
37 #include "obsolete/prsem.h"
38
39
40 #define TBSIZE 1024
41
42 static PRUint8 tbuf[TBSIZE];
43
44 static PRFileDesc *t1, *t2;
45
46 PRIntn failed_already=0;
47 PRIntn debug_mode;
InitialSetup(void)48 static void InitialSetup(void)
49 {
50 PRUintn i;
51 PRInt32 nWritten, rv;
52
53 t1 = PR_Open("t1.tmp", PR_CREATE_FILE | PR_RDWR, 0);
54 PR_ASSERT(t1 != NULL);
55
56 for (i=0; i<TBSIZE; i++)
57 tbuf[i] = i;
58
59 nWritten = PR_Write((PRFileDesc*)t1, tbuf, TBSIZE);
60 PR_ASSERT(nWritten == TBSIZE);
61
62 rv = PR_Seek(t1,0,PR_SEEK_SET);
63 PR_ASSERT(rv == 0);
64
65 t2 = PR_Open("t2.tmp", PR_CREATE_FILE | PR_RDWR, 0);
66 PR_ASSERT(t2 != NULL);
67 }
68
69
VerifyAndCleanup(void)70 static void VerifyAndCleanup(void)
71 {
72 PRUintn i;
73 PRInt32 nRead, rv;
74
75 for (i=0; i<TBSIZE; i++)
76 tbuf[i] = 0;
77
78 rv = PR_Seek(t2,0,PR_SEEK_SET);
79 PR_ASSERT(rv == 0);
80
81 nRead = PR_Read((PRFileDesc*)t2, tbuf, TBSIZE);
82 PR_ASSERT(nRead == TBSIZE);
83
84 for (i=0; i<TBSIZE; i++)
85 if (tbuf[i] != (PRUint8)i) {
86 if (debug_mode) printf("data mismatch for index= %d \n", i);
87 else failed_already=1;
88 }
89 PR_Close(t1);
90 PR_Close(t2);
91
92 PR_Delete("t1.tmp");
93 PR_Delete("t2.tmp");
94
95 if (debug_mode) printf("fileio test passed\n");
96 }
97
98
99 /*------------------ Following is the real test program ---------*/
100 /*
101 Program to copy one file to another. Two temporary files get
102 created. First one gets written in one write call. Then,
103 a reader thread reads from this file into a double buffer.
104 The writer thread writes from double buffer into the other
105 temporary file. The second temporary file gets verified
106 for accurate data.
107 */
108
109 PRSemaphore *emptyBufs; /* number of empty buffers */
110 PRSemaphore *fullBufs; /* number of buffers that are full */
111
112 #define BSIZE 100
113
114 struct {
115 char data[BSIZE];
116 PRUintn nbytes; /* number of bytes in this buffer */
117 } buf[2];
118
reader(void * arg)119 static void PR_CALLBACK reader(void *arg)
120 {
121 PRUintn i = 0;
122 PRInt32 nbytes;
123
124 do {
125 (void) PR_WaitSem(emptyBufs);
126 nbytes = PR_Read((PRFileDesc*)arg, buf[i].data, BSIZE);
127 if (nbytes >= 0) {
128 buf[i].nbytes = nbytes;
129 PR_PostSem(fullBufs);
130 i = (i + 1) % 2;
131 }
132 } while (nbytes > 0);
133 }
134
writer(void * arg)135 static void PR_CALLBACK writer(void *arg)
136 {
137 PRUintn i = 0;
138 PRInt32 nbytes;
139
140 do {
141 (void) PR_WaitSem(fullBufs);
142 nbytes = buf[i].nbytes;
143 if (nbytes > 0) {
144 nbytes = PR_Write((PRFileDesc*)arg, buf[i].data, nbytes);
145 PR_PostSem(emptyBufs);
146 i = (i + 1) % 2;
147 }
148 } while (nbytes > 0);
149 }
150
main(int argc,char ** argv)151 int main(int argc, char **argv)
152 {
153 PRThread *r, *w;
154
155
156 PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
157 PR_STDIO_INIT();
158
159 emptyBufs = PR_NewSem(2); /* two empty buffers */
160
161 fullBufs = PR_NewSem(0); /* zero full buffers */
162
163 /* Create initial temp file setup */
164 InitialSetup();
165
166 /* create the reader thread */
167
168 r = PR_CreateThread(PR_USER_THREAD,
169 reader, t1,
170 PR_PRIORITY_NORMAL,
171 PR_LOCAL_THREAD,
172 PR_JOINABLE_THREAD,
173 0);
174
175 w = PR_CreateThread(PR_USER_THREAD,
176 writer, t2,
177 PR_PRIORITY_NORMAL,
178 PR_LOCAL_THREAD,
179 PR_JOINABLE_THREAD,
180 0);
181
182 /* Do the joining for both threads */
183 (void) PR_JoinThread(r);
184 (void) PR_JoinThread(w);
185
186 /* Do the verification and clean up */
187 VerifyAndCleanup();
188
189 PR_DestroySem(emptyBufs);
190 PR_DestroySem(fullBufs);
191
192 PR_Cleanup();
193
194 if(failed_already)
195 {
196 printf("Fail\n");
197 return 1;
198 }
199 else
200 {
201 printf("PASS\n");
202 return 0;
203 }
204
205
206 }
207