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 66
