Started adding node functionality.
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53
CMakeLists.txt
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53
CMakeLists.txt
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# Copyright (C) 2017 Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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# Author: Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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#
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# This program is free software: you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation, either
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# version 3 of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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cmake_minimum_required(VERSION 2.8)
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project(NeoComm)
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set(TARGET_NAME "neocomm")
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set(TARGET_VERSION_MAJOR 0)
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set(TARGET_VERSION_MINOR 1)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE "release")
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endif()
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string(TOLOWER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE)
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message(STATUS "Build Type: ${CMAKE_BUILD_TYPE}")
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option(BUILD_SHARED_LIBS
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"Whether to build a shared object instead of a static." OFF)
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include_directories(
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"include/")
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set(SRCS
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src/nodes.c)
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set(CMAKE_C_FLAGS "-std=c99 -Wall -Wextra -Werror -Wfatal-errors -Wmissing-declarations -pedantic-errors")
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set(CMAKE_C_FLAGS_DEBUG "-g -O0")
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set(CMAKE_C_FLAGS_RELEASE "-O3")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "-g -O3")
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set(CMAKE_C_FLAGS_MINSEZEREL "-Os")
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if(NOT CMAKE_BUILD_TYPE MATCHES "debug" AND
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NOT CMAKE_BUILD_TYPE MATCHES "relwithdebinfo")
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add_definitions("-DNDEBUG")
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else()
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add_definitions("-DDEBUG")
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endif()
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add_library(${TARGET_NAME} ${SRCS})
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66
include/nodes.h
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66
include/nodes.h
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/*
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* Copyright (C) 2017 Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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* Author: Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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/**
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* @brief Initialize the node list.
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*
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* @param max_nodes Maximum number of nodes available.
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*
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* @return If the operation failed then it will return 0, else it will
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* return 1.
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*/
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int init_nodes(unsigned int max_nodes);
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/**
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* @brief Enlarge the list.
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*
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* @param new_max_nodes New number of maximum nodes.
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*
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* @return If the new size is less than or equal to the current size, or
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* the list failed to be reallocated, then it returns 0, else it returns 1.
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*/
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int resize_node_list(unsigned int new_max_nodes);
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/**
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* @brief Get the maximum number of nodes that can be used.
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*
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* @return The maximum number of nodes that can be used..
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*/
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unsigned int get_node_max();
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/**
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* @brief Get the number of nodes there currently are.
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*
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* @return The number of nodes remembered.
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*/
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unsigned int get_node_count();
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/**
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* @brief Add a new node to the list with an address (normally IP) and port.
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*
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* @param addr Address of the new node (normally an IP, but also DNS).
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* @param port Port number for new node.
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*
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* @return If the node list is full it will return 0, else 1.
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*/
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int add_node(char *addr, unsigned short port);
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int remove_node(char *addr, unsigned short port);
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93
src/nodes.c
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93
src/nodes.c
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/*
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* Copyright (C) 2017 Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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* Author: Ortega Froysa, Nicolás <deathsbreed@themusicinnoise.net>
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*
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* This program is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "nodes.h"
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#include <stdlib.h>
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#include <string.h>
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struct node {
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// The address of the node
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char *address;
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unsigned short port;
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// Whether or not it is a directory node/server
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int directory;
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// Useful variables for passing on connections of new nodes
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unsigned int connections;
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unsigned int max_connections;
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};
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// List of nodes
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static struct node *node_list;
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// Maximum number of nodes
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static unsigned int node_max;
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// Number of nodes in the list
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static unsigned int node_count;
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int init_nodes(unsigned int max_nodes) {
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node_list = calloc(max_nodes, sizeof(struct node));
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if(!node_list)
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return 0;
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node_max = max_nodes;
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node_count = 0;
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return 1;
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}
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int resize_node_list(unsigned int new_max_nodes) {
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if(new_max_nodes <= node_max)
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return 0;
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void* tmp_list = realloc(node_list, new_max_nodes * sizeof(struct node));
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if(!tmp_list)
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return 0;
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node_list = tmp_list;
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return 1;
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}
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unsigned int get_node_max() {
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return node_max;
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}
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unsigned int get_node_count() {
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return node_count;
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}
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int add_node(char *addr, unsigned short port) {
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if(node_count >= node_max)
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return 0;
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for(unsigned int i = 0; i < node_count; ++i)
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{
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if(strcmp(node_list[i].address, addr) == 0 &&
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node_list[i].port == port)
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return 1;
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}
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node_list[node_count].address = addr;
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node_list[node_count].port = port;
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node_list[node_count].directory = 0;
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node_list[node_count].connections = 0;
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node_list[node_count].max_connections = 0;
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node_count++;
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return 1;
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}
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