/* * Copyright (c) 1998, 2019, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions.
*/
/* @test @bug 4091757 6652379 8177809 @requires os.maxMemory >= 16G @summary Basic test for setLastModified method
*/
privatestaticvoid ck(File f, long nt, long rt) throws Exception { if (rt == nt) return; if ((rt / 10 == nt / 10)
|| (rt / 100 == nt / 100)
|| (rt / 1000 == nt / 1000)
|| (rt / 10000 == (nt / 10000))) {
System.err.println(f + ": Time set to " + nt
+ ", rounded down by filesystem to " + rt); return;
} if ((rt / 10 == (nt + 5) / 10)
|| (rt / 100 == (nt + 50) / 100)
|| (rt / 1000 == (nt + 500) / 1000)
|| (rt / 10000 == ((nt + 5000) / 10000))) {
System.err.println(f + ": Time set to " + nt
+ ", rounded up by filesystem to " + rt); return;
} thrownew Exception(f + ": Time set to " + nt
+ ", then read as " + rt);
}
publicstaticvoid main(String[] args) throws Exception {
File d = new File(System.getProperty("test.dir", "."));
File d2 = new File(d, "x.SetLastModified.dir");
File f = new File(d2, "x.SetLastModified"); long ot, t;
/* New time: One week ago */ long nt = System.currentTimeMillis() - 1000 * 60 * 60 * 24 * 7;
if (f.exists()) f.delete(); if (d2.exists()) d2.delete(); if (!d2.mkdir()) { thrownew Exception("Can't create test directory " + d2);
}
boolean threw = false; try {
d2.setLastModified(-nt);
} catch (IllegalArgumentException x) {
threw = true;
} if (!threw) thrownew Exception("setLastModified succeeded with a negative time");
ot = d2.lastModified(); if (ot != 0) { if (d2.setLastModified(nt)) {
ck(d2, nt, d2.lastModified());
d2.setLastModified(ot);
} else {
System.err.println("Warning: setLastModified on directories "
+ "not supported");
}
}
if (f.exists()) { if (!f.delete()) thrownew Exception("Can't delete test file " + f);
} if (f.setLastModified(nt)) thrownew Exception("Succeeded on non-existent file: " + f);
// set/check last modified on files of size 1, 1GB+1, 2GB+1, .. // On Windows we only test with a tiny file as that platform doesn't // support sparse files by default and so the test takes too long. finallong G = 1024L * 1024L * 1024L; finallong MAX_POSITION =
System.getProperty("os.name").startsWith("Windows") ? 0L : 3L*G; long pos = 0L; while (pos <= MAX_POSITION) { try (FileChannel fc = new FileOutputStream(f).getChannel()) {
fc.position(pos).write(ByteBuffer.wrap("x".getBytes()));
}
ot = f.lastModified();
System.out.format("check with file size: %d\n", f.length()); if (!f.setLastModified(nt)) thrownew Exception("setLastModified failed on file: " + f);
ck(f, nt, f.lastModified());
pos += G;
}
if (!f.delete()) thrownew Exception("Can't delete test file " + f); if (!d2.delete()) thrownew Exception("Can't delete test directory " + d2);
}
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