120 lines
2.6 KiB
C++
120 lines
2.6 KiB
C++
#include <sys/socket.h>
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#include <sys/epoll.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include "osd_ops.h"
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#include "ringloop.h"
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class osd_t
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{
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int wait_state = 0;
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int epoll_fd = 0;
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int listen_fd = 0;
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ring_consumer_t consumer;
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std::string bind_address;
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int bind_port, listen_backlog;
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ring_loop_t *ringloop;
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void handle_epoll_events();
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public:
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osd_t(ring_loop_t *ringloop);
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~osd_t();
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void loop();
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};
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class osd_client_t
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{
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int sock_fd;
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};
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osd_t::osd_t(ring_loop_t *ringloop)
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{
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this->ringloop = ringloop;
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listen_fd = socket(AF_INET, SOCK_STREAM, 0);
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if (listen_fd < 0)
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{
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throw std::runtime_error(std::string("socket: ") + strerror(errno));
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}
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sockaddr_in addr;
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if ((int r = inet_pton(AF_INET, bind_address.c_str(), &addr.sin_addr)) != 1)
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{
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close(listen_fd);
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throw std::runtime_error("bind address "+bind_address+(r == 0 ? " is not valid" : ": no ipv4 support"));
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}
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addr.sin_family = AF_INET;
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addr.sin_port = bind_port;
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if (bind(listen_fd, &addr, sizeof(addr)) < 0)
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{
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close(listen_fd);
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throw std::runtime_error(std::string("bind: ") + strerror(errno));
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}
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if (listen(listen_fd, listen_backlog) < 0)
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{
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close(listen_fd);
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throw std::runtime_error(std::string("listen: ") + strerror(errno));
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}
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epoll_fd = epoll_create(1);
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if (epoll_fd < 0)
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{
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close(listen_fd);
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throw std::runtime_error(std::string("epoll_create: ") + strerror(errno));
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}
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struct epoll_event ev;
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ev.data.fd = listen_fd;
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ev.events = EPOLLIN | EPOLLET | EPOLLONESHOT;
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if (epoll_ctl(epfd, EPOLL_CTL_ADD, sfd, &ev) < 0)
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{
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throw std::runtime_error(std::string("epoll_ctl: ") + strerror(errno));
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}
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consumer.loop = [this]() { loop(); };
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ringloop->register_consumer(consumer);
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}
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osd_t::~osd_t()
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{
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ringloop->unregister_consumer(consumer);
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close(epoll_fd);
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close(listen_fd);
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}
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void osd_t::loop()
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{
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if (wait_state == 1)
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{
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return;
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}
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struct io_uring_sqe *sqe = ringloop->get_sqe();
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if (!sqe)
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{
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wait_state = 0;
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return;
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}
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struct ring_data_t *data = ((ring_data_t*)sqe->user_data);
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my_uring_prep_poll_add(sqe, epoll_fd, POLLIN);
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data->callback = [&](ring_data_t *data)
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{
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if (data->res < 0)
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{
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throw std::runtime_error(std::string("epoll failed: ") + strerror(-data->res));
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}
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handle_epoll_events();
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wait_state = 0;
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};
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wait_state = 1;
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ringloop->submit();
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}
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void osd_t::handle_epoll_events()
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{
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}
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