mirror of
https://github.com/varun-r-mallya/pylibbpf.git
synced 2026-03-24 06:01:28 +00:00
Janitorial: clang-format
This commit is contained in:
@ -1,14 +1,11 @@
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#include "bpf_map.h"
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#include "bpf_map.h"
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#include "bpf_object.h"
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#include "bpf_exception.h"
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#include "bpf_exception.h"
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#include "bpf_object.h"
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BpfMap::BpfMap(std::shared_ptr<BpfObject> parent, struct bpf_map *raw_map, const std::string &map_name)
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BpfMap::BpfMap(std::shared_ptr<BpfObject> parent, struct bpf_map *raw_map,
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: parent_obj_(parent),
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const std::string &map_name)
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map_(raw_map),
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: parent_obj_(parent), map_(raw_map), map_fd_(-1), map_name_(map_name),
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map_fd_(-1),
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key_size_(0), value_size_(0) {
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map_name_(map_name),
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key_size_(0),
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value_size_(0) {
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if (!parent)
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if (!parent)
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throw BpfException("Parent BpfObject is null");
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throw BpfException("Parent BpfObject is null");
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if (!(parent->is_loaded()))
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if (!(parent->is_loaded()))
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@ -18,7 +15,8 @@ BpfMap::BpfMap(std::shared_ptr<BpfObject> parent, struct bpf_map *raw_map, const
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map_fd_ = bpf_map__fd(map_);
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map_fd_ = bpf_map__fd(map_);
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if (map_fd_ < 0)
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if (map_fd_ < 0)
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throw BpfException("Failed to get file descriptor for map '" + map_name_ + "'");
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throw BpfException("Failed to get file descriptor for map '" + map_name_ +
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"'");
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key_size_ = bpf_map__key_size(map_);
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key_size_ = bpf_map__key_size(map_);
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value_size_ = bpf_map__value_size(map_);
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value_size_ = bpf_map__value_size(map_);
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@ -37,20 +35,13 @@ py::object BpfMap::lookup(const py::object &key) const {
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// The flags field here matters only when spin locks are used.
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// The flags field here matters only when spin locks are used.
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// Skipping it for now.
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// Skipping it for now.
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const int ret = bpf_map__lookup_elem(
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const int ret = bpf_map__lookup_elem(map_, key_span.data(), key_size_,
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map_,
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value_span.data(), value_size_, BPF_ANY);
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key_span.data(),
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key_size_,
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value_span.data(),
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value_size_,
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BPF_ANY);
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if (ret < 0) {
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if (ret < 0) {
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if (ret == -ENOENT)
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if (ret == -ENOENT)
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throw py::key_error("Key not found in map '" + map_name_ + "'");
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throw py::key_error("Key not found in map '" + map_name_ + "'");
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throw BpfException(
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throw BpfException("Failed to lookup key in map '" + map_name_ +
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"Failed to lookup key in map '" + map_name_ + "': " +
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"': " + std::strerror(-ret));
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std::strerror(-ret)
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);
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}
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}
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return bytes_to_python(value_span);
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return bytes_to_python(value_span);
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@ -67,18 +58,11 @@ void BpfMap::update(const py::object &key, const py::object &value) const {
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python_to_bytes_inplace(key, key_span);
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python_to_bytes_inplace(key, key_span);
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python_to_bytes_inplace(value, value_span);
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python_to_bytes_inplace(value, value_span);
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const int ret = bpf_map__update_elem(
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const int ret = bpf_map__update_elem(map_, key_span.data(), key_size_,
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map_,
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value_span.data(), value_size_, BPF_ANY);
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key_span.data(),
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key_size_,
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value_span.data(),
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value_size_,
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BPF_ANY);
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if (ret < 0) {
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if (ret < 0) {
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throw BpfException(
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throw BpfException("Failed to update key in map '" + map_name_ +
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"Failed to update key in map '" + map_name_ + "': " +
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"': " + std::strerror(-ret));
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std::strerror(-ret)
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);
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}
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}
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}
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}
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@ -92,15 +76,14 @@ void BpfMap::delete_elem(const py::object &key) const {
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// Convert Python → bytes
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// Convert Python → bytes
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python_to_bytes_inplace(key, key_span);
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python_to_bytes_inplace(key, key_span);
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const int ret = bpf_map__delete_elem(map_, key_span.data(), key_size_, BPF_ANY);
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const int ret =
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bpf_map__delete_elem(map_, key_span.data(), key_size_, BPF_ANY);
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if (ret != 0) {
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if (ret != 0) {
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if (ret == -ENOENT)
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if (ret == -ENOENT)
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throw py::key_error("Key not found in map '" + map_name_ + "'");
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throw py::key_error("Key not found in map '" + map_name_ + "'");
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throw BpfException(
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throw BpfException("Failed to delete key from map '" + map_name_ +
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"Failed to delete key from map '" + map_name_ + "': " +
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"': " + std::strerror(-ret));
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std::strerror(-ret)
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);
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}
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}
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}
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}
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@ -115,7 +98,8 @@ py::object BpfMap::get_next_key(const py::object &key) const {
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BufferManager<> key_buf;
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BufferManager<> key_buf;
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auto key_bytes = key_buf.get_span(key_size_);
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auto key_bytes = key_buf.get_span(key_size_);
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python_to_bytes_inplace(key, key_bytes);
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python_to_bytes_inplace(key, key_bytes);
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ret = bpf_map__get_next_key(map_, key_bytes.data(), next_key.data(), key_size_);
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ret = bpf_map__get_next_key(map_, key_bytes.data(), next_key.data(),
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key_size_);
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}
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}
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if (ret < 0) {
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if (ret < 0) {
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@ -123,10 +107,8 @@ py::object BpfMap::get_next_key(const py::object &key) const {
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// No more keys
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// No more keys
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return py::none();
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return py::none();
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}
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}
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throw BpfException(
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throw BpfException("Failed to get next key in map '" + map_name_ +
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"Failed to get next key in map '" + map_name_ + "': " +
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"': " + std::strerror(-ret));
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std::strerror(-ret)
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);
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}
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}
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return bytes_to_python(next_key);
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return bytes_to_python(next_key);
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@ -190,17 +172,13 @@ py::list BpfMap::values() const {
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return result;
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return result;
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}
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}
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int BpfMap::get_type() const {
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int BpfMap::get_type() const { return bpf_map__type(map_); }
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return bpf_map__type(map_);
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}
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int BpfMap::get_max_entries() const {
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return bpf_map__max_entries(map_);
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}
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int BpfMap::get_max_entries() const { return bpf_map__max_entries(map_); }
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// Helper functions
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// Helper functions
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void BpfMap::python_to_bytes_inplace(const py::object &obj, std::span<uint8_t> buffer) {
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void BpfMap::python_to_bytes_inplace(const py::object &obj,
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std::span<uint8_t> buffer) {
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std::fill(buffer.begin(), buffer.end(), 0);
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std::fill(buffer.begin(), buffer.end(), 0);
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if (py::isinstance<py::int_>(obj)) {
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if (py::isinstance<py::int_>(obj)) {
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@ -214,10 +192,9 @@ void BpfMap::python_to_bytes_inplace(const py::object &obj, std::span<uint8_t> b
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std::string bytes_str = obj.cast<std::string>();
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std::string bytes_str = obj.cast<std::string>();
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if (bytes_str.size() > buffer.size()) {
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if (bytes_str.size() > buffer.size()) {
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throw BpfException(
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throw BpfException("Bytes size " + std::to_string(bytes_str.size()) +
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"Bytes size " + std::to_string(bytes_str.size()) +
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" exceeds expected size " +
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" exceeds expected size " + std::to_string(buffer.size())
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std::to_string(buffer.size()));
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);
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}
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}
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std::memcpy(buffer.data(), bytes_str.data(), bytes_str.size());
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std::memcpy(buffer.data(), bytes_str.data(), bytes_str.size());
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@ -1,15 +1,15 @@
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#ifndef PYLIBBPF_BPF_MAP_H
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#ifndef PYLIBBPF_BPF_MAP_H
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#define PYLIBBPF_BPF_MAP_H
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#define PYLIBBPF_BPF_MAP_H
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#include <algorithm>
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#include <array>
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#include <cerrno>
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#include <cstring>
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#include <libbpf.h>
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#include <libbpf.h>
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#include <pybind11/pybind11.h>
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#include <pybind11/pybind11.h>
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#include <vector>
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#include <string>
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#include <span>
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#include <span>
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#include <array>
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#include <string>
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#include <algorithm>
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#include <vector>
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#include <cstring>
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#include <cerrno>
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class BpfObject;
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class BpfObject;
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@ -23,8 +23,7 @@ private:
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std::string map_name_;
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std::string map_name_;
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__u32 key_size_, value_size_;
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__u32 key_size_, value_size_;
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template<size_t StackSize = 64>
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template <size_t StackSize = 64> struct BufferManager {
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struct BufferManager {
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std::array<uint8_t, StackSize> stack_buf;
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std::array<uint8_t, StackSize> stack_buf;
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std::vector<uint8_t> heap_buf;
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std::vector<uint8_t> heap_buf;
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@ -39,7 +38,8 @@ private:
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};
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};
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public:
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public:
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BpfMap(std::shared_ptr<BpfObject> parent, struct bpf_map *raw_map, const std::string &map_name);
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BpfMap(std::shared_ptr<BpfObject> parent, struct bpf_map *raw_map,
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const std::string &map_name);
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~BpfMap() = default;
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~BpfMap() = default;
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@ -64,7 +64,8 @@ public:
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[[nodiscard]] int get_max_entries() const;
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[[nodiscard]] int get_max_entries() const;
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private:
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private:
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static void python_to_bytes_inplace(const py::object &obj, std::span<uint8_t> buffer);
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static void python_to_bytes_inplace(const py::object &obj,
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std::span<uint8_t> buffer);
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static py::object bytes_to_python(std::span<const uint8_t> data);
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static py::object bytes_to_python(std::span<const uint8_t> data);
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};
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};
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@ -1,12 +1,11 @@
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#include "bpf_object.h"
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#include "bpf_object.h"
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#include "bpf_program.h"
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#include "bpf_map.h"
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#include "bpf_exception.h"
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#include "bpf_exception.h"
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#include "bpf_map.h"
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#include "bpf_program.h"
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#include <cerrno>
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#include <cerrno>
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BpfObject::BpfObject(std::string object_path)
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BpfObject::BpfObject(std::string object_path)
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: obj_(nullptr), object_path_(std::move(object_path)), loaded_(false) {
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: obj_(nullptr), object_path_(std::move(object_path)), loaded_(false) {}
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}
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BpfObject::~BpfObject() {
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BpfObject::~BpfObject() {
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// Clear caches first (order matters!)
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// Clear caches first (order matters!)
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@ -21,10 +20,8 @@ BpfObject::~BpfObject() {
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}
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}
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BpfObject::BpfObject(BpfObject &&other) noexcept
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BpfObject::BpfObject(BpfObject &&other) noexcept
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: obj_(other.obj_),
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: obj_(other.obj_), object_path_(std::move(other.object_path_)),
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object_path_(std::move(other.object_path_)),
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loaded_(other.loaded_), prog_cache_(std::move(other.prog_cache_)),
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loaded_(other.loaded_),
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prog_cache_(std::move(other.prog_cache_)),
|
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maps_cache_(std::move(other.maps_cache_)) {
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maps_cache_(std::move(other.maps_cache_)) {
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other.obj_ = nullptr;
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other.obj_ = nullptr;
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@ -65,7 +62,8 @@ void BpfObject::load() {
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}
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}
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if (bpf_object__load(obj_)) {
|
if (bpf_object__load(obj_)) {
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error_msg += " object from file '" + object_path_ + "': " + std::strerror(errno);
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error_msg +=
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" object from file '" + object_path_ + "': " + std::strerror(errno);
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bpf_object__close(obj_);
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bpf_object__close(obj_);
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obj_ = nullptr;
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obj_ = nullptr;
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throw BpfException(error_msg);
|
throw BpfException(error_msg);
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@ -92,7 +90,8 @@ py::list BpfObject::get_program_names() const {
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return names;
|
return names;
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}
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}
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std::shared_ptr<BpfProgram> BpfObject::_get_or_create_program(struct bpf_program *prog) {
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std::shared_ptr<BpfProgram>
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BpfObject::_get_or_create_program(struct bpf_program *prog) {
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if (!prog) {
|
if (!prog) {
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throw BpfException("bpf_program pointer is null");
|
throw BpfException("bpf_program pointer is null");
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}
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}
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@ -132,12 +131,14 @@ std::shared_ptr<BpfProgram> BpfObject::get_program(const std::string& name) {
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return prog;
|
return prog;
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}
|
}
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|
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struct bpf_program* BpfObject::find_program_by_name(const std::string& name) const {
|
struct bpf_program *
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BpfObject::find_program_by_name(const std::string &name) const {
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if (!loaded_) {
|
if (!loaded_) {
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throw BpfException("BPF object not loaded");
|
throw BpfException("BPF object not loaded");
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}
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}
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|
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struct bpf_program *prog = bpf_object__find_program_by_name(obj_, name.c_str());
|
struct bpf_program *prog =
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|
bpf_object__find_program_by_name(obj_, name.c_str());
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if (!prog) {
|
if (!prog) {
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throw BpfException("Program '" + name + "' not found");
|
throw BpfException("Program '" + name + "' not found");
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}
|
}
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@ -2,8 +2,8 @@
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#define PYLIBBPF_BPF_OBJECT_H
|
#define PYLIBBPF_BPF_OBJECT_H
|
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|
|
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#include <libbpf.h>
|
#include <libbpf.h>
|
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#include <pybind11/pybind11.h>
|
|
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#include <memory>
|
#include <memory>
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||||||
|
#include <pybind11/pybind11.h>
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#include <string>
|
#include <string>
|
||||||
#include <unordered_map>
|
#include <unordered_map>
|
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#include <vector>
|
#include <vector>
|
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@ -26,7 +26,8 @@ private:
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bool loaded_;
|
bool loaded_;
|
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|
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mutable std::unordered_map<std::string, std::shared_ptr<BpfMap>> maps_cache_;
|
mutable std::unordered_map<std::string, std::shared_ptr<BpfMap>> maps_cache_;
|
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mutable std::unordered_map<std::string, std::shared_ptr<BpfProgram>> prog_cache_;
|
mutable std::unordered_map<std::string, std::shared_ptr<BpfProgram>>
|
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|
prog_cache_;
|
||||||
|
|
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std::shared_ptr<BpfProgram> _get_or_create_program(struct bpf_program *prog);
|
std::shared_ptr<BpfProgram> _get_or_create_program(struct bpf_program *prog);
|
||||||
std::shared_ptr<BpfMap> _get_or_create_map(struct bpf_map *map);
|
std::shared_ptr<BpfMap> _get_or_create_map(struct bpf_map *map);
|
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@ -65,8 +66,10 @@ public:
|
|||||||
|
|
||||||
// Program access
|
// Program access
|
||||||
[[nodiscard]] py::list get_program_names() const;
|
[[nodiscard]] py::list get_program_names() const;
|
||||||
[[nodiscard]] std::shared_ptr<BpfProgram> get_program(const std::string& name);
|
[[nodiscard]] std::shared_ptr<BpfProgram>
|
||||||
[[nodiscard]] struct bpf_program* find_program_by_name(const std::string& name) const;
|
get_program(const std::string &name);
|
||||||
|
[[nodiscard]] struct bpf_program *
|
||||||
|
find_program_by_name(const std::string &name) const;
|
||||||
[[nodiscard]] py::dict get_cached_programs() const;
|
[[nodiscard]] py::dict get_cached_programs() const;
|
||||||
|
|
||||||
// Map access
|
// Map access
|
||||||
|
|||||||
@ -1,7 +1,8 @@
|
|||||||
#include "bpf_perf_buffer.h"
|
#include "bpf_perf_buffer.h"
|
||||||
#include "bpf_exception.h"
|
#include "bpf_exception.h"
|
||||||
|
|
||||||
void BpfPerfBuffer::sample_callback_wrapper(void *ctx, int cpu, void *data, unsigned int size) {
|
void BpfPerfBuffer::sample_callback_wrapper(void *ctx, int cpu, void *data,
|
||||||
|
unsigned int size) {
|
||||||
auto *self = static_cast<BpfPerfBuffer *>(ctx);
|
auto *self = static_cast<BpfPerfBuffer *>(ctx);
|
||||||
|
|
||||||
// Acquire GIL for Python calls
|
// Acquire GIL for Python calls
|
||||||
@ -18,7 +19,8 @@ void BpfPerfBuffer::sample_callback_wrapper(void *ctx, int cpu, void *data, unsi
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
void BpfPerfBuffer::lost_callback_wrapper(void *ctx, int cpu, unsigned long long cnt) {
|
void BpfPerfBuffer::lost_callback_wrapper(void *ctx, int cpu,
|
||||||
|
unsigned long long cnt) {
|
||||||
auto *self = static_cast<BpfPerfBuffer *>(ctx);
|
auto *self = static_cast<BpfPerfBuffer *>(ctx);
|
||||||
|
|
||||||
if (self->lost_callback_.is_none()) {
|
if (self->lost_callback_.is_none()) {
|
||||||
@ -34,7 +36,8 @@ void BpfPerfBuffer::lost_callback_wrapper(void *ctx, int cpu, unsigned long long
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
BpfPerfBuffer::BpfPerfBuffer(int map_fd, int page_cnt, py::function callback, py::object lost_callback)
|
BpfPerfBuffer::BpfPerfBuffer(int map_fd, int page_cnt, py::function callback,
|
||||||
|
py::object lost_callback)
|
||||||
: pb_(nullptr), callback_(std::move(callback)) {
|
: pb_(nullptr), callback_(std::move(callback)) {
|
||||||
|
|
||||||
if (!lost_callback.is_none()) {
|
if (!lost_callback.is_none()) {
|
||||||
|
|||||||
@ -2,8 +2,8 @@
|
|||||||
#define PYLIBBPF_BPF_PERF_BUFFER_H
|
#define PYLIBBPF_BPF_PERF_BUFFER_H
|
||||||
|
|
||||||
#include <libbpf.h>
|
#include <libbpf.h>
|
||||||
#include <pybind11/pybind11.h>
|
|
||||||
#include <pybind11/functional.h>
|
#include <pybind11/functional.h>
|
||||||
|
#include <pybind11/pybind11.h>
|
||||||
|
|
||||||
namespace py = pybind11;
|
namespace py = pybind11;
|
||||||
|
|
||||||
@ -14,11 +14,13 @@ private:
|
|||||||
py::function lost_callback_;
|
py::function lost_callback_;
|
||||||
|
|
||||||
// Static callback wrappers for C API
|
// Static callback wrappers for C API
|
||||||
static void sample_callback_wrapper(void *ctx, int cpu, void *data, unsigned int size);
|
static void sample_callback_wrapper(void *ctx, int cpu, void *data,
|
||||||
|
unsigned int size);
|
||||||
static void lost_callback_wrapper(void *ctx, int cpu, unsigned long long cnt);
|
static void lost_callback_wrapper(void *ctx, int cpu, unsigned long long cnt);
|
||||||
|
|
||||||
public:
|
public:
|
||||||
BpfPerfBuffer(int map_fd, int page_cnt, py::function callback, py::object lost_callback);
|
BpfPerfBuffer(int map_fd, int page_cnt, py::function callback,
|
||||||
|
py::object lost_callback);
|
||||||
~BpfPerfBuffer();
|
~BpfPerfBuffer();
|
||||||
|
|
||||||
int poll(int timeout_ms);
|
int poll(int timeout_ms);
|
||||||
|
|||||||
@ -1,12 +1,12 @@
|
|||||||
#include "bpf_program.h"
|
#include "bpf_program.h"
|
||||||
#include "bpf_exception.h"
|
#include "bpf_exception.h"
|
||||||
#include <utility>
|
|
||||||
#include <cerrno>
|
#include <cerrno>
|
||||||
|
#include <utility>
|
||||||
|
|
||||||
BpfProgram::BpfProgram(std::shared_ptr<BpfObject> parent, struct bpf_program *raw_prog, const std::string& program_name)
|
BpfProgram::BpfProgram(std::shared_ptr<BpfObject> parent,
|
||||||
: parent_obj_(parent),
|
struct bpf_program *raw_prog,
|
||||||
prog_(raw_prog),
|
const std::string &program_name)
|
||||||
link_(nullptr),
|
: parent_obj_(parent), prog_(raw_prog), link_(nullptr),
|
||||||
program_name_(program_name) {
|
program_name_(program_name) {
|
||||||
if (!parent)
|
if (!parent)
|
||||||
throw BpfException("Parent BpfObject is null");
|
throw BpfException("Parent BpfObject is null");
|
||||||
@ -16,15 +16,11 @@ BpfProgram::BpfProgram(std::shared_ptr<BpfObject> parent, struct bpf_program *ra
|
|||||||
throw BpfException("bpf_program pointer is null");
|
throw BpfException("bpf_program pointer is null");
|
||||||
}
|
}
|
||||||
|
|
||||||
BpfProgram::~BpfProgram() {
|
BpfProgram::~BpfProgram() { detach(); }
|
||||||
detach();
|
|
||||||
}
|
|
||||||
|
|
||||||
BpfProgram::BpfProgram(BpfProgram &&other) noexcept
|
BpfProgram::BpfProgram(BpfProgram &&other) noexcept
|
||||||
: parent_obj_(std::move(other.parent_obj_)),
|
: parent_obj_(std::move(other.parent_obj_)), prog_(other.prog_),
|
||||||
prog_(other.prog_),
|
link_(other.link_), program_name_(std::move(other.program_name_)) {
|
||||||
link_(other.link_),
|
|
||||||
program_name_(std::move(other.program_name_)) {
|
|
||||||
|
|
||||||
other.prog_ = nullptr;
|
other.prog_ = nullptr;
|
||||||
other.link_ = nullptr;
|
other.link_ = nullptr;
|
||||||
@ -62,7 +58,8 @@ void BpfProgram::attach() {
|
|||||||
|
|
||||||
link_ = bpf_program__attach(prog_);
|
link_ = bpf_program__attach(prog_);
|
||||||
if (!link_) {
|
if (!link_) {
|
||||||
std::string err_msg = "bpf_program__attach failed for program '" + program_name_ + "': " + std::strerror(errno);
|
std::string err_msg = "bpf_program__attach failed for program '" +
|
||||||
|
program_name_ + "': " + std::strerror(errno);
|
||||||
throw BpfException(err_msg);
|
throw BpfException(err_msg);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@ -15,7 +15,9 @@ private:
|
|||||||
std::string program_name_;
|
std::string program_name_;
|
||||||
|
|
||||||
public:
|
public:
|
||||||
explicit BpfProgram(std::shared_ptr<BpfObject> parent, struct bpf_program *raw_prog, const std::string& program_name);
|
explicit BpfProgram(std::shared_ptr<BpfObject> parent,
|
||||||
|
struct bpf_program *raw_prog,
|
||||||
|
const std::string &program_name);
|
||||||
|
|
||||||
~BpfProgram();
|
~BpfProgram();
|
||||||
|
|
||||||
|
|||||||
Reference in New Issue
Block a user