Added new interfaces.

I also optimized the node list a bit so as not to use more processing
power than necessary.

include/neocomm.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017  Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
+ * Author: Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "nodes.h"

include/nodes.h

@@ -21,13 +21,15 @@
 
 /**
  * @brief Initialize the node list.
+ * @details This function allocates memory and prepares the nodes list, you
+ * must run this before using any other node related functions.
  *
  * @param max_nodes Maximum number of nodes available.
  *
  * @return If the operation failed then it will return 0, else it will
  * return 1.
  */
-int init_nodes(unsigned int max_nodes);
+int NeoComm_init_nodes(unsigned int max_nodes);
 
 /**
  * @brief Enlarge the list.
@@ -37,21 +39,21 @@ int init_nodes(unsigned int max_nodes);
  * @return If the new size is less than or equal to the current size, or
  * the list failed to be reallocated, then it returns 0, else it returns 1.
  */
-int resize_node_list(unsigned int new_max_nodes);
+int NeoComm_resize_node_list(unsigned int new_max_nodes);
 
 /**
  * @brief Get the maximum number of nodes that can be used.
  *
  * @return The maximum number of nodes that can be used..
  */
-unsigned int get_node_max();
+unsigned int NeoComm_get_node_max();
 
 /**
  * @brief Get the number of nodes there currently are.
  *
  * @return The number of nodes remembered.
  */
-unsigned int get_node_count();
+unsigned int NeoComm_get_node_count();
 
 /**
  * @brief Add a new node to the list with an address (normally IP) and port.
@@ -61,6 +63,14 @@ unsigned int get_node_count();
  *
  * @return If the node list is full it will return 0, else 1.
  */
-int add_node(char *addr, unsigned short port);
+int NeoComm_add_node(char *addr, unsigned short port);
 
-int remove_node(char *addr, unsigned short port);
+/**
+ * @brief Remove a node from the list.
+ *
+ * @param addr The address of the node.
+ * @param port The public port of the node.
+ *
+ * @return If the node was not found it returns 0, else it returns 1.
+ */
+int NeoComm_remove_node(char *addr, unsigned short port);

src/nodes.c

@@ -40,18 +40,21 @@ static unsigned int node_max;
 // Number of nodes in the list
 static unsigned int node_count;
 
-int init_nodes(unsigned int max_nodes) {
+int NeoComm_init_nodes(unsigned int max_nodes) {
 	node_list = calloc(max_nodes, sizeof(struct node));
 	if(!node_list)
 		return 0;
 
+	for(unsigned int i = 0; i < max_nodes; ++i)
+		node_list[i].address = NULL;
+
 	node_max = max_nodes;
 	node_count = 0;
 
 	return 1;
 }
 
-int resize_node_list(unsigned int new_max_nodes) {
+int NeoComm_resize_node_list(unsigned int new_max_nodes) {
 	if(new_max_nodes <= node_max)
 		return 0;
 
@@ -64,15 +67,15 @@ int resize_node_list(unsigned int new_max_nodes) {
 	return 1;
 }
 
-unsigned int get_node_max() {
+unsigned int NeoComm_get_node_max() {
 	return node_max;
 }
 
-unsigned int get_node_count() {
+unsigned int NeoComm_get_node_count() {
 	return node_count;
 }
 
-int add_node(char *addr, unsigned short port) {
+int NeoComm_add_node(char *addr, unsigned short port) {
 	if(node_count >= node_max)
 		return 0;
 	for(unsigned int i = 0; i < node_count; ++i)
@@ -81,13 +84,39 @@ int add_node(char *addr, unsigned short port) {
 				node_list[i].port == port)
 			return 1;
 	}
-	node_list[node_count].address = addr;
-	node_list[node_count].port = port;
-	node_list[node_count].directory = 0;
-	node_list[node_count].connections = 0;
-	node_list[node_count].max_connections = 0;
+
+	for(unsigned int i = 0; i < node_max; ++i)
+	{
+		if(!node_list[i].address)
+		{
+			node_list[i].address = addr;
+			node_list[i].port = port;
+			node_list[i].directory = 0;
+			node_list[i].connections = 0;
+			node_list[i].max_connections = 0;
+			break;
+		}
+	}
 
 	node_count++;
 
 	return 1;
 }
+
+int NeoComm_remove_node(char *addr, unsigned short port) {
+	int removed = 0;
+	for(unsigned int i = 0; i < node_count; ++i)
+	{
+		if(!removed && strcmp(node_list[i].address, addr) == 0 &&
+				node_list[i].port == port)
+		{
+			node_list[i].address = NULL;
+			node_count--;
+			removed = 1;
+			break;
+		}
+	}
+	if(!removed)
+		return 0;
+	return 1;
+}