chromium/net/dns/host_resolver_proc.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/dns/host_resolver_proc.h"

#include <tuple>

#include "base/check.h"
#include "base/memory/scoped_refptr.h"
#include "base/notreached.h"
#include "build/build_config.h"
#include "net/base/address_family.h"
#include "net/base/address_list.h"
#include "net/base/net_errors.h"
#include "net/dns/host_resolver_system_task.h"

#if BUILDFLAG(IS_OPENBSD)
#define AI_ADDRCONFIG …
#endif

namespace net {

HostResolverProc* HostResolverProc::default_proc_ = …;

HostResolverProc::HostResolverProc(scoped_refptr<HostResolverProc> previous,
                                   bool allow_fallback_to_system_or_default)
    : … { … }

HostResolverProc::~HostResolverProc() = default;

int HostResolverProc::Resolve(const std::string& host,
                              AddressFamily address_family,
                              HostResolverFlags host_resolver_flags,
                              AddressList* addrlist,
                              int* os_error,
                              handles::NetworkHandle network) { … }

int HostResolverProc::ResolveUsingPrevious(
    const std::string& host,
    AddressFamily address_family,
    HostResolverFlags host_resolver_flags,
    AddressList* addrlist,
    int* os_error) { … }

void HostResolverProc::SetPreviousProc(scoped_refptr<HostResolverProc> proc) { … }

void HostResolverProc::SetLastProc(scoped_refptr<HostResolverProc> proc) { … }

// static
HostResolverProc* HostResolverProc::GetLastProc(HostResolverProc* proc) { … }

// static
HostResolverProc* HostResolverProc::SetDefault(HostResolverProc* proc) { … }

// static
HostResolverProc* HostResolverProc::GetDefault() { … }

}  // namespace net