#!/bin/sh
# Copyright 2019 gRPC authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -e

cd "$(dirname "$0")/../../.."

#
# Prevent the use of synchronization and threading constructs from std:: since
# the code should be using grpc_core::Mutex, grpc::internal::Mutex,
# grpc_core::Thread, etc.
#

grep -EIrn \
    'std::(mutex|condition_variable|lock_guard|unique_lock|thread)' \
    include/grpc include/grpcpp src/core src/cpp | \
    grep -Ev 'include/grpcpp/impl/sync.h|src/core/lib/gprpp/work_serializer.cc' | \
    diff - /dev/null

#
# Prevent the include of disallowed C++ headers.
#

grep -EIrn \
    '^#include (<mutex>|<condition_variable>|<thread>|<ratio>|<filesystem>|<future>|<system_error>)' \
    include/grpc include/grpcpp src/core src/cpp | \
    grep -Ev 'include/grpcpp/impl/sync.h|src/core/lib/gprpp/work_serializer.cc' | \
    diff - /dev/null

#
# Prevent the include of headers that shouldn't be used in tests.
#

grep -EIrn \
    '^#include (<pthread.h>)' \
    test | \
    diff - /dev/null