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8205610: [TESTLIB] Improve listing of open file descriptors

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Reviewed-by: lancea
This commit is contained in:
Roger Riggs 2018-07-17 17:14:03 -04:00
parent 9a9c824ece
commit e1ee13c514
1 changed files with 16 additions and 6 deletions

22
test/lib/jdk/test/lib/util/FileUtils.java

@ -39,6 +39,7 @@ import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.time.Instant;
import java.time.Duration;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.ArrayDeque;
import java.util.HashSet;
@ -242,16 +243,15 @@ public final class FileUtils {
* @throws UncheckedIOException if an error occurs
*/
public static void listFileDescriptors(PrintStream ps) {
List<String> lsofDirs = List.of("/usr/bin", "/usr/sbin");
Optional<Path> lsof = lsofDirs.stream()
.map(s -> Paths.get(s, "lsof"))
.filter(f -> Files.isExecutable(f))
Optional<String[]> lsof = Arrays.stream(lsCommands)
.filter(args -> Files.isExecutable(Path.of(args[0])))
.findFirst();
lsof.ifPresent(exe -> {
lsof.ifPresent(args -> {
try {
ps.printf("Open File Descriptors:%n");
long pid = ProcessHandle.current().pid();
ProcessBuilder pb = new ProcessBuilder(exe.toString(), "-p", Integer.toString((int) pid));
ProcessBuilder pb = new ProcessBuilder(args[0], args[1], Integer.toString((int) pid));
pb.redirectErrorStream(true); // combine stderr and stdout
pb.redirectOutput(Redirect.PIPE);
@ -273,4 +273,14 @@ public final class FileUtils {
}
});
}
// Possible command locations and arguments
static String[][] lsCommands = new String[][] {
{"/usr/bin/lsof", "-p"},
{"/usr/sbin/lsof", "-p"},
{"/bin/lsof", "-p"},
{"/sbin/lsof", "-p"},
{"/usr/local/bin/lsof", "-p"},
{"/usr/bin/pfiles", "-F"}, // Solaris
};
}