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ce49f66c89
- Add platform notes for tray startup, shortcut saving, and Linux-only settings - Handle stat error in processRecording (missing file) - Select correct binary name based on OS in updater - Increase tray icon canvas size from 64 to 128 pixels - Update frontend dist asset hash
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
//go:build windows
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// ============================================================
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// WINDOWS-ONLY FILE — Windows process management utilities.
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// Uses Win32 API (OpenProcess, GetExitCodeProcess) to check
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// if a process is running. The Linux equivalent for process
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// checking is in internal/linux/process.go
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// ============================================================
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package windows
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import (
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"errors"
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"syscall"
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)
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// IsProcessRunning checks if a process with the given PID exists on Windows.
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// Uses GetExitCodeProcess to distinguish "not running" from "running but
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// access denied" (protected/system processes), avoiding false negatives
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// that would allow duplicate instances to launch.
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func IsProcessRunning(pid int) bool {
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const PROCESS_QUERY_LIMITED_INFORMATION = 0x1000
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handle, err := syscall.OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, uint32(pid))
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if err != nil {
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// ACCESS_DENIED means the process is running but we can't query it.
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// Treat that as "running" to avoid clobbering the lock file.
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if errors.Is(err, syscall.ERROR_ACCESS_DENIED) {
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return true
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}
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return false
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}
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defer syscall.CloseHandle(handle)
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// Still confirm the process hasn't exited by checking its exit code.
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// STILL_ACTIVE (259) is the documented value for a live process.
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var exitCode uint32
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if err := syscall.GetExitCodeProcess(handle, &exitCode); err != nil {
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return true // We got a handle, so the process exists.
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}
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return exitCode == 259
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}
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