ae6ca36fa7
Ipc destructor closes socket and thus wakes up SleeperThread which was waiting for socket data in Ipc::handleEvent. Ipc::handleEvent then proceeds with sending signal to already destroyed object, causing heap-use-after-free Address Sanitizer error.
50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
#pragma once
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#include <sigc++/sigc++.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <unistd.h>
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#include <cstring>
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#include <memory>
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#include <mutex>
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#include "ipc.hpp"
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#include "util/sleeper_thread.hpp"
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namespace waybar::modules::sway {
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class Ipc {
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public:
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Ipc();
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~Ipc();
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struct ipc_response {
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uint32_t size;
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uint32_t type;
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std::string payload;
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};
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sigc::signal<void, const struct ipc_response &> signal_event;
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sigc::signal<void, const struct ipc_response &> signal_cmd;
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void sendCmd(uint32_t type, const std::string &payload = "");
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void subscribe(const std::string &payload);
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void handleEvent();
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void setWorker(std::function<void()> &&func);
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protected:
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static inline const std::string ipc_magic_ = "i3-ipc";
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static inline const size_t ipc_header_size_ = ipc_magic_.size() + 8;
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const std::string getSocketPath() const;
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int open(const std::string &) const;
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struct ipc_response send(int fd, uint32_t type, const std::string &payload = "");
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struct ipc_response recv(int fd);
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int fd_;
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int fd_event_;
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std::mutex mutex_;
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util::SleeperThread thread_;
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};
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} // namespace waybar::modules::sway
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