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