php-ebpf/table.cpp

#include <iostream>
#include <phpcpp.h>
#include "bpf_module.h"
#include "BPF.h"

class BaseTable : public Php::Base {
public:
	ebpf::BPF *bpf;
	std::string tb_name;

	BaseTable(ebpf::BPF *bpf_instance, const std::string &tb_name)
			: bpf(bpf_instance), tb_name(tb_name) {}

	virtual ~BaseTable() = default;

	void printName() { std::cout << "Table name: " << tb_name << std::endl; }
};


class PerfEventArrayTable : public BaseTable {
private:
	std::string cb;
public:
	using BaseTable::BaseTable;

//	ebpf::BPF *bpf;
//	std::string event_name;
//
//	PerfEventArrayTable(ebpf::BPF *bpf_instance, const std::string &event_name)
//	: bpf(bpf_instance), event_name(event_name) {}

//	using BaseTable::BaseTable;

	virtual ~PerfEventArrayTable() = default;

	static void callbackfn(void *cookie, void *data, int data_size) {
		auto *instance = static_cast<PerfEventArrayTable *>(cookie);
		if (!instance) return;

		Php::Value phpData((const char *) data, data_size);
		Php::call(instance->cb.c_str(), nullptr, phpData, data_size);
	}

	void php_open_perf_buffer(Php::Parameters &params) {
		this->cb = params[0].stringValue();
		auto res = this->bpf->open_perf_buffer(this->tb_name, callbackfn, nullptr, this);
		if (!res.ok()) {
			throw Php::Exception("open_perf_buffer error:" + res.msg());
		}

//		auto control_table_hdl = bpf->get_array_table<uint64_t>("counters");
//		uint64_t val;
//		auto res1 = control_table_hdl.get_value(0, val);
//		Php::out << "ok]" << res1.ok() << std::endl;
//		Php::out << "msg]" << res1.msg() << std::endl;
//		Php::out << "val]" << val << std::endl;
	}

	int perf_buffer_poll(int timeout_ms) {
		return bpf->poll_perf_buffer(this->tb_name, timeout_ms); // perf_reader_event_read
	}

};

class HashTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class ArrayTable : public BaseTable {
public:
	using BaseTable::BaseTable;
	Php::Value Value(Php::Parameters &param) {
		auto index = param[0].numericValue();
		// todo val type
		uint64_t val;
		auto table = bpf->get_array_table<uint64_t>(tb_name);
		auto res = table.get_value(index, val);
		if (!res.ok()) {
			throw Php::Exception("Get value error in" + std::string(tb_name));
		}
		Php::Value phpValue = static_cast<int64_t>(val);
		return phpValue;
	}
};

class ProgArrayTable : public BaseTable {
public:
	using BaseTable::BaseTable;

	void Value(Php::Parameters &param) {
		auto index = param[0].numericValue();
		// todo key type
		uint64_t val;
		auto table = bpf->get_array_table<uint64_t>(tb_name);
		auto res = table.get_value(index, val);

		printf("%d\n", val);
	}


};

class PerCpuHashTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class PerCpuArrayTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class LpmTrieTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class StackTraceTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class LruHashTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class LruPerCpuHashTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class CgroupArrayTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class DevMapTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class CpuMapTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class XskMapTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class MapInMapArrayTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class MapInMapHashTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class QueueStackTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};

class RingBufTable : public BaseTable {
public:
	using BaseTable::BaseTable;
};