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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 
ProcessIterator(const ProcessFilter * filter)9 ProcessIterator::ProcessIterator(const ProcessFilter* filter)
10     : started_iteration_(false),
11       filter_(filter) {
12   snapshot_ = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
13 }
14 
~ProcessIterator()15 ProcessIterator::~ProcessIterator() {
16   CloseHandle(snapshot_);
17 }
18 
CheckForNextProcess()19 bool ProcessIterator::CheckForNextProcess() {
20   InitProcessEntry(&entry_);
21 
22   if (!started_iteration_) {
23     started_iteration_ = true;
24     return !!Process32First(snapshot_, &entry_);
25   }
26 
27   return !!Process32Next(snapshot_, &entry_);
28 }
29 
InitProcessEntry(ProcessEntry * entry)30 void ProcessIterator::InitProcessEntry(ProcessEntry* entry) {
31   memset(entry, 0, sizeof(*entry));
32   entry->dwSize = sizeof(*entry);
33 }
34 
IncludeEntry()35 bool NamedProcessIterator::IncludeEntry() {
36   // Case insensitive.
37   return _wcsicmp(executable_name_.c_str(), entry().exe_file()) == 0 &&
38          ProcessIterator::IncludeEntry();
39 }
40 
41 }  // namespace base
42