Initial commit

src/runner.c

@@ -0,0 +1,84 @@
+/*
+   swebs - a simple web server
+   Copyright (C) 2022  Nate Choe
+   
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/socket.h>
+
+#include <runner.h>
+#include <sitefile.h>
+#include <connections.h>
+
+void *runServer(RunnerArgs *args) {
+	Sitefile *site = args->site;
+	int *pending = args->pending;
+	int *schedule = args->schedule;
+	int id = args->id;
+
+	Connection *connections = NULL;
+	Connection *last = NULL;
+	//Connections are processed in a queue, which is really just a linked
+	//list where we add to the end and read from the beginning.
+	for (;;) {
+		if (schedule[0] == id) {
+			Connection *newconn = malloc(sizeof(Connection));
+			assert(newconn != NULL);
+			assert(newConnection(newconn, schedule[1]) == 0);
+
+			if (last == NULL)
+				connections = newconn;
+			else
+				last->next = newconn;
+			last = newconn;
+			pending[id]++;
+			schedule[0] = -1;
+		}
+
+		Connection *prev = NULL;
+		Connection *iter = connections;
+		//I know of the Linus Thorvalds good taste code thing, it just
+		//gets very confusing very fast to think about pointers to
+		//pointers which have pointers.
+		while (iter != NULL) {
+			if (updateConnection(iter, site)) {
+				if (iter->next == NULL)
+					last = prev;
+				if (prev == NULL)
+					connections = connections->next;
+				else
+					prev->next = iter->next;
+				Connection *newiter = iter->next;
+				freeConnection(iter);
+				iter = newiter;
+				pending[id]--;
+				//TODO: Clean this later
+			}
+			else {
+				prev = iter;
+				iter = iter->next;
+			}
+		}
+	}
+	return NULL;
+}