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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/process/process_iterator.h"
#include "build/build_config.h"
namespace base {
#if BUILDFLAG(IS_POSIX) || BUILDFLAG(IS_FUCHSIA)
ProcessEntry::ProcessEntry() : pid_(0), ppid_(0), gid_(0) {}
ProcessEntry::ProcessEntry(const ProcessEntry& other) = default;
ProcessEntry::~ProcessEntry() = default;
#endif
const ProcessEntry* ProcessIterator::NextProcessEntry() {
bool result = false;
do {
result = CheckForNextProcess();
} while (result && !IncludeEntry());
if (result) {
return &entry_;
}
return nullptr;
}
ProcessIterator::ProcessEntries ProcessIterator::Snapshot() {
ProcessEntries found;
while (const ProcessEntry* process_entry = NextProcessEntry()) {
found.push_back(*process_entry);
}
return found;
}
bool ProcessIterator::IncludeEntry() {
return !filter_ || filter_->Includes(entry_);
}
NamedProcessIterator::NamedProcessIterator(
const FilePath::StringType& executable_name,
const ProcessFilter* filter,
bool use_prefix_match)
: ProcessIterator(filter),
executable_name_(executable_name),
use_prefix_match_(use_prefix_match) {
#if BUILDFLAG(IS_ANDROID)
// On Android, the process name contains only the last 15 characters, which
// is in file /proc/<pid>/stat, the string between open parenthesis and close
// parenthesis. Please See ProcessIterator::CheckForNextProcess for details.
// Now if the length of input process name is greater than 15, only save the
// last 15 characters.
if (executable_name_.size() > 15) {
executable_name_ = FilePath::StringType(executable_name_,
executable_name_.size() - 15, 15);
}
#endif
}
NamedProcessIterator::~NamedProcessIterator() = default;
int GetProcessCount(const FilePath::StringType& executable_name,
const ProcessFilter* filter) {
int count = 0;
NamedProcessIterator iter(executable_name, filter);
while (iter.NextProcessEntry()) {
++count;
}
return count;
}
} // namespace base
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