SysReadFile is a simplified os.ReadFile that invokes syscall.Read directly. https://github.com/prometheus/node_exporter/pull/728/files Note that this

SysReadUintFromFile reads a file using SysReadFile and attempts to parse a uint64 from it.

assertNilPInt64 checks that a *int64 field is nil.

assertPInt64 checks that a *int64 field is non-nil and holds the expected value.

int64 interprets the underlying value as an int64 and returns that value. TODO: export if/when necessary.

intToU64 convert int to uint64 and return it pointer.

isPathEnable checks if the file "enable" contain enable message.

listFiles returns a list of files for a directory of the reader.

newNetDev creates a new NetDev from the contents of the given file.

newNetDevSNMP6 creates a new NetDevSNMP6 from the contents of the given directory.

newNetIPSocketSummary creates a new NetIPSocket{,6} from the contents of the given file.

parseAddresses parses the start-end address.

parseAerCounters scans predefined files in /sys/class/net/<iface>/device directory and gets their contents.

parseCgroupString parses each line of the /proc/[pid]/cgroup file Line format is hierarchyID:[controller1,controller2]:path.

parseCgroupSummary parses each line of the /proc/cgroup file Line format is `subsys_name hierarchy num_cgroups enabled`.

parseDevice parses the device token of a line and converts it to a dev_t (mkdev) like structure.

parseLine parses a single line from the /proc/net/dev file. Header lines must be filtered prior to calling this method.

Parse /proc loadavg and return 1m, 5m and 15m.

parseMDStat parses data from mdstat file (/proc/mdstat) and returns a slice of structs containing the relevant info.

parseMonDirName splits a mon_data directory name into resource and domain id. The name is "mon_<resource>_<id>", for example "mon_L3_00". The resource

parseNFNetLinkQueueLine parses each line of the /proc/net/netfilter/nfnetlink_queue file.

parseNetClassIface scans predefined files in /sys/class/net/<iface> directory and gets their contents.

parsePSIStats parses the specified file for pressure stall information.

Parse one PCI device Refer to https://docs.kernel.org/PCI/sysfs-pci.html

ParsePriorityStats parses lines from the priority_stats file.

parseProcNetstat parses the metrics from proc/<pid>/net/netstat file and returns a ProcNetstat structure.

ParsePseudoFloat parses the peculiar format produced by bcache's bch_hprint.

Parse rate (example: "100 Gb/sec (4X EDR)") and return it as bytes/second.

parseSockstat reads the contents of a sockstat file and parses a NetSockstat.

parseTainted builds a KernelTainted from the raw taint bitmask value.

ParseWritebackRateDebug parses lines from the writeback_rate_debug file.

Read /proc/pid/smaps and do the roll-up in Go code.

readFile reads a file relative to the path of the reader. Non-existing files are ignored.

readNetUNIX reads data in /proc/net/unix format from the specified file.

stats retrieves bcache runtime statistics for each bcache and priorityStats flag controls if we need to read priority_stats.

AerCounters returns AER counters for all net interfaces (iface) read from /sys/class/net/<iface>/device.

AerCounters returns info for a single net interfaces (iface).

BuddyInfo reads the buddyinfo statistics from the specified `proc` filesystem.

CPUInfo returns information about current system CPUs. See https://www.kernel.org/doc/Documentation/filesystems/proc.txt

CPUTime returns the total CPU user and system time in seconds.

CPUVulnerabilities retrieves a map of vulnerability names to their mitigations.

ClassDRMCardAMDGPUStats returns DRM card metrics for all amdgpu cards.

ClassThermalZoneStats returns Thermal Zone metrics for all zones.

ClockSources returns clocksource information including current and available clocksources read from '/sys/devices/system/clocksource'.

CmdLine returns the command line of the kernel.

CmdLine returns the command line of a process.

Comm returns the command name of a process.

Cwd returns the absolute path to the current working directory of the process.

DMIClass returns Desktop Management Interface (DMI) information read from /sys/class/dmi.

DRMCardClass returns infos for all DRM devices read from sys/class/drm.

DataBytes returns the process of data + stack size in bytes.

EcnByIface returns info for a single net interfaces (iface).

EcnDevices returns EcnIface for all net interfaces (iface) read from /sys/class/net/<iface>/ecn.

Environ reads process environments from `/proc/<pid>/environ`.

Executable returns the absolute path of the executable command of a process.

FDInfo constructor. On kernels older than 3.8, InotifyInfos will always be empty.

FibreChannelClass parses everything in /sys/class/fc_host.

FileDescriptorTargets returns the targets of all file descriptors of a process. If a file descriptor is not a symlink to a file (like a socket), that

FileDescriptors returns the currently open file descriptors of a process.

FileDescriptorsLen returns the number of currently open file descriptors of a process.

Fscacheinfo returns information about current fscache statistics. See https://www.kernel.org/doc/Documentation/filesystems/caching/fscache.txt

GatherARPEntries retrieves all the ARP entries, parse the relevant columns, and then return a slice of ARPEntry's.

GetByEndDevice finds the SASPort that contains the provided SAS end device name.

GetByExpander finds the SASPort that contains the provided SAS expander name.

GetEnergyMicrojoules returns the current microjoule value from the zone energy counter https://www.kernel.org/doc/Documentation/power/powercap/powerca

GetFileioUdev is getting the actual info to build up the FILEIO data and match with the enable target.

GetIblockUdev is getting the actual info to build up the IBLOCK data and match with the enable target.

GetMounts retrieves mountinfo information from `/proc/self/mountinfo`.

GetProcMounts retrieves mountinfo information from a processes' `/proc/<pid>/mountinfo`.

GetRBDMatch is getting the actual info to build up the RBD data and match with the enable target.

GetRDMCPPath is getting the actual info to build up RDMCP data.

GetStats collects all Btrfs statistics from sysfs.

GetStats collects from sysfs files data tied to one bcache ID.

GetStats collects all Bcachefs statistics from sysfs.

GetStats is the main iscsi status information func for building the path and prepare info for enable iscsi.

IO creates a new ProcIO instance from a given Proc instance.

IPVSBackendStatus reads and returns the status of all (virtual,real) server pairs from the specified `proc` filesystem.

IPVSStats reads the IPVS statistics from the specified `proc` filesystem.

ISCSIStats getting iscsi runtime information.

InotifyWatchLen returns the total number of inotify watches.