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47a2cce03d
This fixes a "bug" where polybar wouldn't reload on a configuration file change on some configurations of vim, which don't actually issue any IN_MODIFY events because they choose to move the file, replace it with a new one, and then delete the file instead. To work around this, we now also listen for IN_IGNORED which fires when the file we are watching is destroyed. When this happens, we re-attach the configuration file watcher to the new file and reload.
47 lines
889 B
C++
47 lines
889 B
C++
#pragma once
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#include <poll.h>
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#include <sys/inotify.h>
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#include <cstdio>
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#include "common.hpp"
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#include "utils/factory.hpp"
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POLYBAR_NS
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struct inotify_event {
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string filename;
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bool is_dir;
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int wd = 0;
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int cookie = 0;
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int mask = 0;
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};
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class inotify_watch {
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public:
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explicit inotify_watch(string path);
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~inotify_watch();
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void attach(int mask = IN_MODIFY);
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void remove(bool force = false);
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bool poll(int wait_ms = 1000) const;
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unique_ptr<inotify_event> get_event() const;
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unique_ptr<inotify_event> await_match() const;
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const string path() const;
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int get_file_descriptor() const;
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protected:
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string m_path;
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int m_fd{-1};
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int m_wd{-1};
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int m_mask{0};
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};
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namespace inotify_util {
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template <typename... Args>
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decltype(auto) make_watch(Args&&... args) {
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return factory_util::unique<inotify_watch>(forward<Args>(args)...);
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}
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}
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POLYBAR_NS_END
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