1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "base/process/process_iterator.h"
6 #include "build/build_config.h"
7
8 namespace base {
9
10 #if defined(OS_POSIX)
ProcessEntry()11 ProcessEntry::ProcessEntry() : pid_(0), ppid_(0), gid_(0) {}
~ProcessEntry()12 ProcessEntry::~ProcessEntry() {}
13 #endif
14
NextProcessEntry()15 const ProcessEntry* ProcessIterator::NextProcessEntry() {
16 bool result = false;
17 do {
18 result = CheckForNextProcess();
19 } while (result && !IncludeEntry());
20 if (result)
21 return &entry_;
22 return NULL;
23 }
24
Snapshot()25 ProcessIterator::ProcessEntries ProcessIterator::Snapshot() {
26 ProcessEntries found;
27 while (const ProcessEntry* process_entry = NextProcessEntry()) {
28 found.push_back(*process_entry);
29 }
30 return found;
31 }
32
IncludeEntry()33 bool ProcessIterator::IncludeEntry() {
34 return !filter_ || filter_->Includes(entry_);
35 }
36
NamedProcessIterator(const FilePath::StringType & executable_name,const ProcessFilter * filter)37 NamedProcessIterator::NamedProcessIterator(
38 const FilePath::StringType& executable_name,
39 const ProcessFilter* filter) : ProcessIterator(filter),
40 executable_name_(executable_name) {
41 #if defined(OS_ANDROID)
42 // On Android, the process name contains only the last 15 characters, which
43 // is in file /proc/<pid>/stat, the string between open parenthesis and close
44 // parenthesis. Please See ProcessIterator::CheckForNextProcess for details.
45 // Now if the length of input process name is greater than 15, only save the
46 // last 15 characters.
47 if (executable_name_.size() > 15) {
48 executable_name_ = FilePath::StringType(executable_name_,
49 executable_name_.size() - 15, 15);
50 }
51 #endif
52 }
53
~NamedProcessIterator()54 NamedProcessIterator::~NamedProcessIterator() {
55 }
56
GetProcessCount(const FilePath::StringType & executable_name,const ProcessFilter * filter)57 int GetProcessCount(const FilePath::StringType& executable_name,
58 const ProcessFilter* filter) {
59 int count = 0;
60 NamedProcessIterator iter(executable_name, filter);
61 while (iter.NextProcessEntry())
62 ++count;
63 return count;
64 }
65
66 } // namespace base
67