swift 获取运行内存总量和剩余总量，磁盘总量和磁盘剩余大小

码农的地

已于 2025-01-02 13:45:39 修改

阅读量327

点赞数 1

分类专栏： swift 文章标签： swift

于 2025-01-02 13:41:39 首次发布

本文链接：https://blog.youkuaiyun.com/dongdong_yan/article/details/144884467

版权

swift 专栏收录该内容

6 篇文章

订阅专栏

swift 获取运行内存总量和剩余总量，磁盘总量和磁盘剩余大小

内存总量

ProcessInfo.processInfo.physicalMemory

剩余内存

func memoryUsage() -> String {
    var vmStats: vm_statistics_data_t = vm_statistics_data_t()
    var number: mach_msg_type_number_t = UInt32(MemoryLayout<vm_statistics_data_t>.size / MemoryLayout<integer_t>.size)
    let status: kern_return_t = withUnsafeMutablePointer(to: &vmStats) {
        $0.withMemoryRebound(to: integer_t.self, capacity: Int(number)) {
            host_statistics(mach_host_self(), HOST_VM_INFO, $0, &number)
        }
    }
    if status != KERN_SUCCESS {
        return ""
    }
    let pageSize: Int64 = Int64(vm_page_size)
    let availableMemorySize = (pageSize * Int64(vmStats.free_count + vmStats.inactive_count))
    return String(availableMemorySize)
}

获取总量和磁盘剩余大小

   // 磁盘总量
func getTotalDiskSize() -> Int64 {
    var fs = blankof(type: statfs.self)
    if statfs("/var",&fs) >= 0{
        return Int64(UInt64(fs.f_bsize) * fs.f_blocks)
    }
    return -1
}
//磁盘剩余容量
func getAvailableDiskSize() -> Int64 {
    var fs = blankof(type: statfs.self)
    if statfs("/var",&fs) >= 0{
        return Int64(UInt64(fs.f_bsize) * fs.f_bavail)
    }
    return -1
}
func blankof<T>(type:T.Type) -> T {
	let ptr = UnsafeMutablePointer<T>.allocate(capacity: MemoryLayout<T>.size)
	let val = ptr.pointee
	return val
}