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test concurrent open/unlink of same file (ok)

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test files with holes (not ok)
This commit is contained in:
rtm 2007-08-24 12:19:13 +00:00
parent 68ae4cc127
commit 3d5f21ee1f
1 changed files with 89 additions and 3 deletions
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90
usertests.c
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@ -138,6 +138,76 @@ writetest1(void)
printf(stdout, "big files ok\n");
}
void
writetest2(void)
{
int fd, fd1, n;
printf(stdout, "files with holes\n");
fd = open("hole", O_CREATE|O_RDWR);
if(fd < 0){
printf(stdout, "error: creat hole failed!\n");
exit();
}
buf[0] = 1;
if(write(fd, buf, 512) != 512) {
printf(stdout, "error: write hole file failed\n");
exit();
}
// now truncate, while fd is still open
fd1 = open("hole", O_CREATE | O_RDWR);
if(fd < 0){
printf(stdout, "error: 2nd creat hole failed!\n");
exit();
}
close(fd1);
// now write another block, should be 2nd in file
buf[0] = 2;
if(write(fd, buf, 512) != 512) {
printf(stdout, "error: 2nd write hole file failed\n");
exit();
}
close(fd);
fd = open("hole", O_RDONLY);
if(fd < 0){
printf(stdout, "error: open hole failed!\n");
exit();
}
n = read(fd, buf, 512);
if(n != 512){
printf(stdout, "error: 1st hole read failed\n");
exit();
}
if(buf[0] != 0){
printf(stdout, "error: 1st hole block didn't have zeros\n");
exit();
}
n = read(fd, buf, 512);
if(n != 512){
printf(stdout, "error: 2nd hole read failed\n");
exit();
}
if(buf[0] != 1){
printf(stdout, "error: 2nd hole block wrong content\n");
exit();
}
close(fd);
if(unlink("hole") < 0) {
printf(stdout, "unlink hole failed\n");
exit();
}
printf(stdout, "hole files ok\n");
}
void
createtest(void)
{
@ -461,7 +531,7 @@ twofiles(void)
printf(1, "twofiles ok\n");
}
// two processes create and delete files in same directory
// two processes create and delete different files in same directory
void
createdelete(void)
{
@ -647,7 +717,7 @@ linktest(void)
printf(1, "linktest ok\n");
}
// test concurrent create of the same file
// test concurrent create and unlink of the same file
void
concreate(void)
{
@ -713,8 +783,23 @@ concreate(void)
for(i = 0; i < 40; i++){
file[1] = '0' + i;
pid = fork();
if(pid < 0){
printf(1, "fork failed\n");
exit();
}
if(((i % 3) == 0 && pid == 0) ||
((i % 3) == 1 && pid != 0)){
fd = open(file, 0);
close(fd);
} else {
unlink(file);
}
if(pid == 0)
exit();
else
wait();
}
printf(1, "concreate ok\n");
}
@ -1095,6 +1180,7 @@ main(int argc, char *argv[])
opentest();
writetest();
writetest1();
writetest2();
createtest();
mem();