Initial QSfera import

Server/vendor/github.com/shirou/gopsutil/v4/mem/mem.go

@@ -0,0 +1,122 @@
+// SPDX-License-Identifier: BSD-3-Clause
+package mem
+
+import (
+	"encoding/json"
+
+	"github.com/shirou/gopsutil/v4/internal/common"
+)
+
+var invoke common.Invoker = common.Invoke{}
+
+// Memory usage statistics. Total, Available and Used contain numbers of bytes
+// for human consumption.
+//
+// The other fields in this struct contain kernel specific values.
+type VirtualMemoryStat struct {
+	// Total amount of RAM on this system
+	Total uint64 `json:"total"`
+
+	// RAM available for programs to allocate
+	//
+	// This value is computed from the kernel specific values.
+	Available uint64 `json:"available"`
+
+	// RAM used by programs
+	//
+	// This value is computed from the kernel specific values.
+	Used uint64 `json:"used"`
+
+	// Percentage of RAM used by programs
+	//
+	// This value is computed from the kernel specific values.
+	UsedPercent float64 `json:"usedPercent"`
+
+	// This is the kernel's notion of free memory; RAM chips whose bits nobody
+	// cares about the value of right now. For a human consumable number,
+	// Available is what you really want.
+	Free uint64 `json:"free"`
+
+	// OS X / BSD specific numbers:
+	// http://www.macyourself.com/2010/02/17/what-is-free-wired-active-and-inactive-system-memory-ram/
+	Active   uint64 `json:"active"`
+	Inactive uint64 `json:"inactive"`
+	Wired    uint64 `json:"wired"`
+
+	// FreeBSD specific numbers:
+	// https://reviews.freebsd.org/D8467
+	Laundry uint64 `json:"laundry"`
+
+	// Linux specific numbers
+	// https://blogs.oracle.com/linux/understanding-linux-kernel-memory-statistics
+	// https://www.kernel.org/doc/Documentation/filesystems/proc.txt
+	// https://www.kernel.org/doc/Documentation/vm/overcommit-accounting
+	// https://www.kernel.org/doc/Documentation/vm/transhuge.txt
+	//
+	Buffers        uint64 `json:"buffers"`
+	Cached         uint64 `json:"cached"`
+	WriteBack      uint64 `json:"writeBack"`
+	Dirty          uint64 `json:"dirty"`
+	WriteBackTmp   uint64 `json:"writeBackTmp"`
+	Shared         uint64 `json:"shared"`
+	Slab           uint64 `json:"slab"`
+	Sreclaimable   uint64 `json:"sreclaimable"`
+	Sunreclaim     uint64 `json:"sunreclaim"`
+	PageTables     uint64 `json:"pageTables"`
+	SwapCached     uint64 `json:"swapCached"`
+	CommitLimit    uint64 `json:"commitLimit"`
+	CommittedAS    uint64 `json:"committedAS"`
+	HighTotal      uint64 `json:"highTotal"`
+	HighFree       uint64 `json:"highFree"`
+	LowTotal       uint64 `json:"lowTotal"`
+	LowFree        uint64 `json:"lowFree"`
+	SwapTotal      uint64 `json:"swapTotal"`
+	SwapFree       uint64 `json:"swapFree"`
+	Mapped         uint64 `json:"mapped"`
+	VmallocTotal   uint64 `json:"vmallocTotal"`
+	VmallocUsed    uint64 `json:"vmallocUsed"`
+	VmallocChunk   uint64 `json:"vmallocChunk"`
+	HugePagesTotal uint64 `json:"hugePagesTotal"`
+	HugePagesFree  uint64 `json:"hugePagesFree"`
+	HugePagesRsvd  uint64 `json:"hugePagesRsvd"`
+	HugePagesSurp  uint64 `json:"hugePagesSurp"`
+	HugePageSize   uint64 `json:"hugePageSize"`
+	AnonHugePages  uint64 `json:"anonHugePages"`
+}
+
+type SwapMemoryStat struct {
+	Total       uint64  `json:"total"`
+	Used        uint64  `json:"used"`
+	Free        uint64  `json:"free"`
+	UsedPercent float64 `json:"usedPercent"`
+	Sin         uint64  `json:"sin"`
+	Sout        uint64  `json:"sout"`
+	PgIn        uint64  `json:"pgIn"`
+	PgOut       uint64  `json:"pgOut"`
+	PgFault     uint64  `json:"pgFault"`
+
+	// Linux specific numbers
+	// https://www.kernel.org/doc/Documentation/cgroup-v2.txt
+	PgMajFault uint64 `json:"pgMajFault"`
+}
+
+func (m VirtualMemoryStat) String() string {
+	s, _ := json.Marshal(m)
+	return string(s)
+}
+
+func (m SwapMemoryStat) String() string {
+	s, _ := json.Marshal(m)
+	return string(s)
+}
+
+type SwapDevice struct {
+	Name      string `json:"name"`
+	UsedBytes uint64 `json:"usedBytes"`
+	FreeBytes uint64 `json:"freeBytes"`
+}
+
+func (m SwapDevice) String() string {
+	s, _ := json.Marshal(m)
+	return string(s)
+}