95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <signal.h>
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#include <sys/epoll.h>
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#include <sys/socket.h>
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#include "fastcgi.h"
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#include "fastcgi_conn.h"
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FastCGIServer::FastCGIServer(int port, const std::function<void(std::unique_ptr<FastCGIRequest>)>& callback, const std::unordered_set<std::string_view>& headers)
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: callback_(callback),
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headers_(headers) {
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LOG(INFO) << "listening on [::1]:" << port;
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signal(SIGPIPE, SIG_IGN);
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epoll_fd_ = epoll_create1(0);
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PCHECK(epoll_fd_ >= 0) << "epoll_create()";
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listen_sock_ = socket(AF_INET6, SOCK_STREAM, 0);
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PCHECK(listen_sock_ >= 0) << "socket()";
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{
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int optval = 1;
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PCHECK(setsockopt(listen_sock_, SOL_SOCKET, SO_REUSEPORT, &optval, sizeof(optval)) == 0);
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}
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{
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sockaddr_in6 bind_addr = {
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.sin6_family = AF_INET6,
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.sin6_port = htons(port),
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.sin6_addr = IN6ADDR_LOOPBACK_INIT,
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};
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PCHECK(bind(listen_sock_, (sockaddr*) &bind_addr, sizeof(bind_addr)) == 0);
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}
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PCHECK(listen(listen_sock_, 128) == 0);
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{
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struct epoll_event ev{
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.events = EPOLLIN,
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.data = {
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.ptr = nullptr,
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},
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};
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PCHECK(epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, listen_sock_, &ev) == 0);
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}
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}
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void FastCGIServer::Serve() {
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while (true) {
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constexpr auto max_events = 256;
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struct epoll_event events[max_events];
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auto num_fd = epoll_wait(epoll_fd_, events, max_events, -1);
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if (num_fd == -1 && errno == EINTR) {
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continue;
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}
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PCHECK(num_fd > 0) << "epoll_wait()";
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for (auto i = 0; i < num_fd; ++i) {
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if (events[i].data.ptr == nullptr) {
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NewConn();
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} else {
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auto conn = static_cast<FastCGIConn*>(events[i].data.ptr);
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if (!conn->Read()) {
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PCHECK(epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, conn->Sock(), nullptr) == 0);
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delete conn;
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}
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}
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}
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}
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}
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void FastCGIServer::NewConn() {
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sockaddr_in6 client_addr;
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socklen_t client_addr_len = sizeof(client_addr);
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auto client_sock = accept(listen_sock_, (sockaddr*) &client_addr, &client_addr_len);
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PCHECK(client_sock >= 0) << "accept()";
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CHECK_EQ(client_addr.sin6_family, AF_INET6);
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{
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auto *conn = new FastCGIConn(client_sock, client_addr, callback_, headers_);
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struct epoll_event ev{
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.events = EPOLLIN,
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.data = {
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.ptr = conn,
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},
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};
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PCHECK(epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, client_sock, &ev) == 0);
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}
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}
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