blob: 24516355f5e4e8f7c9d1e5e7c9e3b4b0b2b6c66f [file] [log] [blame]
// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/developer/debug/zxdb/client/process.h"
#include "src/developer/debug/zxdb/client/session.h"
#include "src/developer/debug/zxdb/client/thread.h"
#include "src/developer/debug/zxdb/client/thread_observer.h"
#include "tools/fidlcat/lib/decoder.h"
namespace fidlcat {
class InterceptionWorkflow;
class SyscallDecoderDispatcher;
// Handles the decoding of an exception.
// The decoding starts when ExceptionDecoder::Decode is called. Then all the decoding steps are
// executed one after the other (see the comments for Decode and the following methods).
class ExceptionDecoder {
ExceptionDecoder(InterceptionWorkflow* workflow, SyscallDecoderDispatcher* dispatcher,
zxdb::Thread* thread, int64_t timestamp)
: workflow_(workflow),
timestamp_(timestamp) {}
SyscallDecoderDispatcher* dispatcher() const { return dispatcher_; }
zxdb::Thread* get_thread() const { return weak_thread_.get(); }
const std::string& process_name() const { return process_name_; }
uint64_t process_id() const { return process_id_; }
uint64_t thread_id() const { return thread_id_; }
int64_t timestamp() const { return timestamp_; }
std::stringstream& Error(DecoderError::Type type) { return error_.Set(type); }
// Asks for the full statck then display the exception.
void Decode();
// Creates an event, uses it and then destroys the decoder..
void Decoded();
// Destroys this object and remove it from the |syscall_decoders_| list in the
// SyscallDecoderDispatcher. This function is called when the event has been created or if we had
// an error and no request is pending (|has_error_| is true and |pending_request_count_| is zero).
void Destroy();
InterceptionWorkflow* const workflow_;
SyscallDecoderDispatcher* const dispatcher_;
const fxl::WeakPtr<zxdb::Thread> weak_thread_;
const std::string process_name_;
const uint64_t process_id_;
const uint64_t thread_id_;
const int64_t timestamp_;
DecoderError error_;
} // namespace fidlcat