starainrt
d93a851d1b
- 重构 sysconf 为文档模型 INI Parser 与 Config Framework - 强化 hosts 解析、插入校验、写回与异常输入处理 - 完善 StarCmd 生命周期、等待 API、流式输出与 IO 重定向 - 扩展跨平台文件时间、文件锁、内存、进程与网络能力 - 将 Windows 进程适配更新到 b612.me/wincmd v0.1.0 - 移除本地 wincmd/win32api replace，改用发布版依赖 - 将最低 Go 版本提升到 1.18 - 补充 hosts、sysconf、FileLock、StarCmd 与平台适配回归测试
57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
//go:build linux
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// +build linux
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package staros
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import (
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"io/ioutil"
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"strconv"
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"strings"
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"syscall"
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)
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// Memory 系统内存信息
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func Memory() (MemStatus, error) {
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var mem MemStatus
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ram := new(syscall.Sysinfo_t)
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if err := syscall.Sysinfo(ram); err != nil {
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return mem, err
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}
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unit := uint64(ram.Unit)
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if unit == 0 {
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unit = 1
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}
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mem.All = uint64(ram.Totalram) * unit
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mem.BuffCache = uint64(ram.Bufferram) * unit
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mem.Free = uint64(ram.Freeram) * unit
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mem.Shared = uint64(ram.Sharedram) * unit
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mem.Available = mem.Free + mem.Shared + mem.BuffCache
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if available, ok := linuxMemAvailable(); ok {
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mem.Available = available
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}
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mem.SwapAll = uint64(ram.Totalswap) * unit
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mem.SwapFree = uint64(ram.Freeswap) * unit
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mem.SwapUsed = uint64(mem.SwapAll - mem.SwapFree)
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mem.Used = uint64(mem.All - mem.Free)
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return mem, nil
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}
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func linuxMemAvailable() (uint64, bool) {
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data, err := ioutil.ReadFile("/proc/meminfo")
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if err != nil {
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return 0, false
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}
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for _, line := range strings.Split(string(data), "\n") {
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fields := strings.Fields(line)
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if len(fields) < 2 || fields[0] != "MemAvailable:" {
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continue
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}
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value, err := strconv.ParseUint(fields[1], 10, 64)
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if err != nil {
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return 0, false
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}
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return value * 1024, true
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}
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return 0, false
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}
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