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      1 /*
      2  * Copyright 2016, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #pragma once
     18 
     19 #include <sys/types.h>
     20 
     21 #include <unordered_map>
     22 
     23 #include <event2/event.h>
     24 #include <event2/listener.h>
     25 
     26 #include <android-base/unique_fd.h>
     27 
     28 #include "dump_type.h"
     29 
     30 struct InterceptManager;
     31 
     32 struct Intercept {
     33   ~Intercept() {
     34     event_free(intercept_event);
     35   }
     36 
     37   InterceptManager* intercept_manager = nullptr;
     38   event* intercept_event = nullptr;
     39   android::base::unique_fd sockfd;
     40 
     41   pid_t intercept_pid = -1;
     42   android::base::unique_fd output_fd;
     43   bool registered = false;
     44   DebuggerdDumpType dump_type = kDebuggerdNativeBacktrace;
     45 };
     46 
     47 struct InterceptManager {
     48   event_base* base;
     49   std::unordered_map<pid_t, std::unique_ptr<Intercept>> intercepts;
     50   evconnlistener* listener = nullptr;
     51 
     52   InterceptManager(event_base* _Nonnull base, int intercept_socket);
     53   InterceptManager(InterceptManager& copy) = delete;
     54   InterceptManager(InterceptManager&& move) = delete;
     55 
     56   bool GetIntercept(pid_t pid, DebuggerdDumpType dump_type, android::base::unique_fd* out_fd);
     57 };
     58