Struct bpf_loader_lib::meta::EunomiaObjectMeta

pub struct EunomiaObjectMeta {
    pub export_types: Vec<ExportedTypesStructMeta>,
    pub bpf_skel: BpfSkeletonMeta,
    pub perf_buffer_pages: usize,
    pub perf_buffer_time_ms: usize,
    pub poll_timeout_ms: i32,
    pub debug_verbose: bool,
    pub print_header: bool,
}

global meta data config

Fields

export_types: Vec<ExportedTypesStructMeta>

Export types

bpf_skel: BpfSkeletonMeta

The object skeleton

perf_buffer_pages: usize

perf buffer related config

perf_buffer_time_ms: usize

perf buffer related config

poll_timeout_ms: i32

poll config

debug_verbose: bool

Whether libbpf should print debug info This will only be apply to libbpf when start running

print_header: bool

print config print the types and names of export headers

Implementations

impl EunomiaObjectMeta

pub fn build_argument_parser(&self) -> Result<Command>

Build an argument parser use the cmdarg sections in .rodata/.bss variables.

Each variable in the .bss or .rodata sections will be mapped into a command line argument.

If a variable has it’s default value, the default value will be used in the command line parser.

Variables with bool will have some special cases:

• If the variable has no default values, a switch named --<NAME> will be added, indicating to set the value to true or false
• If the default value if true, a switch named --disable-<NAME> will be added, means set the value to false
• If the default value if false, a switch named --enable-<NAME> will be added, means to set the value to true.

The first will be used to set the value of the variable to true, second one will be used to set false

Variables with other types will accept values. But values will be checked in parse_arguments_and_fill_skeleton_variables, so here the values input in the command line parser will be regarded as strings.

impl EunomiaObjectMeta

pub fn parse_arguments_and_fill_skeleton_variables( &mut self, args: &ArgMatches, on_unpresent: UnpresentVariableAction ) -> Result<()>

Parser the values from the command line parser

The clap parser gives us all values as strings, so here will try to parse the strings into the variable’s own types (e.g, string, int, unsigned int). If it failes, Err will be returned

This function will fill the value field in the DataSectionVariableMeta.

If the on_unpresent behavior is FillWithZero, in this way if we find a command line argument with no values provided (this situation may only happen if the command line argument was created with no default values, a.k.a the value field is None in DataSectionVariableMeta), the value field will still be leaved None. In this way, the section_loader will fill zeros in the corresponding memory areas.

If the on_unpresent behavior is ReportError, in this way if we find a command line argument with no values, we’ll report an error.

Trait Implementations

impl Clone for EunomiaObjectMeta

fn clone(&self) -> EunomiaObjectMeta

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for EunomiaObjectMeta

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EunomiaObjectMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq<EunomiaObjectMeta> for EunomiaObjectMeta

fn eq(&self, other: &EunomiaObjectMeta) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for EunomiaObjectMeta

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for EunomiaObjectMeta

impl StructuralEq for EunomiaObjectMeta

impl StructuralPartialEq for EunomiaObjectMeta