27aff949fb
Move the functionality for the following components to the new base support library: - BoundMethod - EventDispatcher - EventDispatcherPoll - Log - Message - Object - Signal - Semaphore - Thread - Timer While it would be preferable to see these split to move one component per commit, these components are all interdependent upon each other, which leaves us with one big change performing the move for all of them. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
85 lines
1.5 KiB
C++
85 lines
1.5 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* process.h - Process object
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*/
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#ifndef __LIBCAMERA_INTERNAL_PROCESS_H__
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#define __LIBCAMERA_INTERNAL_PROCESS_H__
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#include <signal.h>
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#include <string>
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#include <vector>
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#include <libcamera/base/signal.h>
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namespace libcamera {
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class EventNotifier;
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class Process final
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{
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public:
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enum ExitStatus {
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NotExited,
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NormalExit,
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SignalExit,
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};
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Process();
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~Process();
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int start(const std::string &path,
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const std::vector<std::string> &args = std::vector<std::string>(),
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const std::vector<int> &fds = std::vector<int>());
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ExitStatus exitStatus() const { return exitStatus_; }
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int exitCode() const { return exitCode_; }
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void kill();
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Signal<Process *, enum ExitStatus, int> finished;
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private:
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void closeAllFdsExcept(const std::vector<int> &fds);
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int isolate();
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void died(int wstatus);
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pid_t pid_;
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bool running_;
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enum ExitStatus exitStatus_;
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int exitCode_;
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friend class ProcessManager;
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};
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class ProcessManager
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{
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public:
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ProcessManager();
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~ProcessManager();
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void registerProcess(Process *proc);
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static ProcessManager *instance();
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int writePipe() const;
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const struct sigaction &oldsa() const;
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private:
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static ProcessManager *self_;
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void sighandler(EventNotifier *notifier);
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std::list<Process *> processes_;
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struct sigaction oldsa_;
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EventNotifier *sigEvent_;
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int pipe_[2];
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};
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} /* namespace libcamera */
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#endif /* __LIBCAMERA_INTERNAL_PROCESS_H__ */
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