2022-08-11 23:40:13 +00:00
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/*
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* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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2022-08-13 01:30:03 +00:00
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#include <NonPosix.h>
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2022-08-11 23:40:13 +00:00
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#include <HttpServer.h>
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2022-08-24 14:06:14 +00:00
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#include <Queue.h>
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2022-08-11 23:40:13 +00:00
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#include <pthread.h>
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2022-08-24 14:06:14 +00:00
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#include <stdio.h>
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2022-08-11 23:40:13 +00:00
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#include <stdlib.h>
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#include <unistd.h>
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2022-08-12 01:19:52 +00:00
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#include <errno.h>
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#include <poll.h>
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2022-08-12 00:13:10 +00:00
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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2022-08-11 23:40:13 +00:00
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struct HttpServer
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{
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int sd;
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unsigned int nThreads;
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2022-08-21 16:35:16 +00:00
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unsigned int maxConnections;
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2022-08-11 23:40:13 +00:00
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pthread_t socketThread;
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volatile unsigned int stop:1;
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volatile unsigned int isRunning:1;
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2022-08-12 01:19:52 +00:00
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HttpHandler *requestHandler;
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void *handlerArgs;
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2022-08-24 14:06:14 +00:00
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Queue *connQueue;
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pthread_mutex_t connQueueMutex;
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2022-08-11 23:40:13 +00:00
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};
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2022-08-24 14:06:14 +00:00
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static int
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QueueConnection(HttpServer * server, int fd)
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{
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FILE *fp;
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int result;
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if (!server)
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{
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return 0;
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}
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fp = fdopen(fd, "rw");
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if (!fp)
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{
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return 0;
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}
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pthread_mutex_lock(&server->connQueueMutex);
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result = QueuePush(server->connQueue, fp);
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pthread_mutex_unlock(&server->connQueueMutex);
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return result;
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}
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static FILE *
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DequeueConnection(HttpServer * server)
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{
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FILE *fp;
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if (!server)
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{
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return NULL;
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}
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pthread_mutex_lock(&server->connQueueMutex);
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fp = QueuePop(server->connQueue);
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pthread_mutex_unlock(&server->connQueueMutex);
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return fp;
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}
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2022-08-11 23:40:13 +00:00
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HttpServer *
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2022-08-21 16:35:16 +00:00
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HttpServerCreate(unsigned short port, unsigned int nThreads, unsigned int maxConnections,
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2022-08-12 01:19:52 +00:00
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HttpHandler * requestHandler, void *handlerArgs)
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2022-08-11 23:40:13 +00:00
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{
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2022-08-12 01:19:52 +00:00
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HttpServer *server;
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2022-08-12 00:13:10 +00:00
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struct sockaddr_in sa = {0};
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2022-08-11 23:40:13 +00:00
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2022-08-12 01:19:52 +00:00
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if (!requestHandler)
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{
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return NULL;
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}
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server = malloc(sizeof(HttpServer));
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2022-08-11 23:40:13 +00:00
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if (!server)
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{
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return NULL;
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}
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2022-08-24 14:06:14 +00:00
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server->connQueue = QueueCreate(maxConnections);
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if (!server->connQueue)
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{
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free(server);
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return NULL;
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}
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2022-08-24 15:25:16 +00:00
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pthread_mutex_init(&server->connQueueMutex, NULL);
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2022-08-24 14:06:14 +00:00
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2022-08-13 01:30:03 +00:00
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server->sd = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
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2022-08-12 00:13:10 +00:00
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if (server->sd < 0)
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{
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free(server);
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return NULL;
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}
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sa.sin_family = AF_INET;
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2022-08-24 18:37:32 +00:00
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sa.sin_port = htons(port);
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2022-08-12 00:13:10 +00:00
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sa.sin_addr.s_addr = htonl(INADDR_ANY);
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if (bind(server->sd, (struct sockaddr *) & sa, sizeof(sa)) < 0)
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{
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close(server->sd);
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free(server);
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return NULL;
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}
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2022-08-21 16:35:16 +00:00
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if (listen(server->sd, maxConnections) < 0)
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2022-08-12 00:13:10 +00:00
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{
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close(server->sd);
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free(server);
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return NULL;
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}
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2022-08-11 23:40:13 +00:00
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server->nThreads = nThreads;
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2022-08-21 16:35:16 +00:00
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server->maxConnections = maxConnections;
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2022-08-11 23:40:13 +00:00
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server->requestHandler = requestHandler;
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server->handlerArgs = handlerArgs;
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server->stop = 0;
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server->isRunning = 0;
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return server;
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}
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void
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HttpServerFree(HttpServer * server)
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{
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2022-08-12 00:13:10 +00:00
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if (!server)
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{
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return;
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}
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close(server->sd);
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2022-08-24 15:25:16 +00:00
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QueueFree(server->connQueue);
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pthread_mutex_destroy(&server->connQueueMutex);
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2022-08-11 23:40:13 +00:00
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free(server);
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}
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static void *
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HttpServerEventThread(void *args)
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{
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HttpServer *server = (HttpServer *) args;
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2022-08-12 01:19:52 +00:00
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struct pollfd pollFds[1];
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2022-08-24 14:06:14 +00:00
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FILE *fp;
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2022-08-11 23:40:13 +00:00
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server->isRunning = 1;
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server->stop = 0;
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2022-08-12 01:19:52 +00:00
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pollFds[0].fd = server->sd;
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pollFds[0].events = POLLIN;
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2022-08-11 23:40:13 +00:00
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while (!server->stop)
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{
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2022-08-12 01:19:52 +00:00
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struct sockaddr_storage addr;
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socklen_t addrLen = sizeof(addr);
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int connFd;
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2022-08-24 15:25:16 +00:00
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int pollResult;
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pollResult = poll(pollFds, 1, 500);
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2022-08-12 01:19:52 +00:00
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if (pollResult < 0)
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{
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/* The poll either timed out, or was interrupted. */
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continue;
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}
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connFd = accept(server->sd, (struct sockaddr *) & addr, &addrLen);
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if (connFd < 0)
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{
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continue;
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}
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2022-08-24 14:06:14 +00:00
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QueueConnection(server, connFd);
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}
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/* Wait on all threads in the thread pool */
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while ((fp = DequeueConnection(server)))
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{
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fclose(fp);
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2022-08-11 23:40:13 +00:00
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}
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server->isRunning = 0;
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return NULL;
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}
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int
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HttpServerStart(HttpServer * server)
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{
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if (!server)
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{
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return 0;
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}
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if (server->isRunning)
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{
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return 1;
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}
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if (pthread_create(&server->socketThread, NULL, HttpServerEventThread, server) != 0)
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{
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return 0;
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}
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return 1;
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}
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void
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HttpServerJoin(HttpServer * server)
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{
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if (!server)
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{
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return;
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}
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pthread_join(server->socketThread, NULL);
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}
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void
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HttpServerStop(HttpServer * server)
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{
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if (!server)
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{
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return;
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}
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server->stop = 1;
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}
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