1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.runtime.commands;
import com.google.devtools.build.lib.runtime.BlazeCommand;
import com.google.devtools.build.lib.runtime.BlazeCommandDispatcher.ShutdownBlazeServerException;
import com.google.devtools.build.lib.runtime.Command;
import com.google.devtools.build.lib.runtime.CommandEnvironment;
import com.google.devtools.build.lib.util.ExitCode;
import com.google.devtools.common.options.Option;
import com.google.devtools.common.options.OptionsBase;
import com.google.devtools.common.options.OptionsParser;
import com.google.devtools.common.options.OptionsProvider;
/**
* The 'blaze shutdown' command.
*/
@Command(name = "shutdown",
options = { ShutdownCommand.Options.class },
allowResidue = false,
mustRunInWorkspace = false,
shortDescription = "Stops the %{product} server.",
help = "This command shuts down the memory resident %{product} server process.\n"
+ "%{options}")
public final class ShutdownCommand implements BlazeCommand {
public static class Options extends OptionsBase {
@Option(name="iff_heap_size_greater_than",
defaultValue = "0",
category = "misc",
help="Iff non-zero, then shutdown will only shut down the " +
"server if the total memory (in MB) consumed by the JVM " +
"exceeds this value.")
public int heapSizeLimit;
}
@Override
public void editOptions(CommandEnvironment env, OptionsParser optionsParser) {}
@Override
public ExitCode exec(CommandEnvironment env, OptionsProvider options)
throws ShutdownBlazeServerException {
int limit = options.getOptions(Options.class).heapSizeLimit;
// Iff limit is non-zero, shut down the server if total memory exceeds the
// limit. totalMemory is the actual heap size that the VM currently uses
// *from the OS perspective*. That is, it's not the size occupied by all
// objects (which is totalMemory() - freeMemory()), and not the -Xmx
// (which is maxMemory()). It's really how much memory this process
// currently consumes, in addition to the JVM code and C heap.
if (limit == 0 ||
Runtime.getRuntime().totalMemory() > limit * 1000L * 1000) {
throw new ShutdownBlazeServerException(0);
}
return ExitCode.SUCCESS;
}
}
|
