root / trunk / code / projects / colonet / ColonetServer / ColonetServer.cpp @ 11
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/** @file ColonetServer.cpp
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*
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* @brief colonet_server - primary server application for Colonet
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*
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* @author Jason Knichel
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* @author Eugene Marinelli
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* @date 10/31/06
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*/
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#include <colonet_wireless.h> |
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#include <sys/select.h> |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <errno.h> |
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#include <arpa/inet.h> |
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#include "includes/initialization.h" |
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#include "includes/ConnectionPool.h" |
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#include "includes/client.h" |
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#include "includes/options.h" |
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#include "includes/Logging.h" |
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#define LISTEN_BACKLOG 5 |
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#define LOG_BUFFER_LENGTH 128 |
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int listenSocket = 0; |
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ConnectionPool connection_pool; |
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Log * logger; |
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int main(int argc, char** argv) { |
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if (initializeServer(argc, argv) < 0) { |
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printf("\t\nThere was an error initializing the server. "
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"Terminating server...\n");
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return -1; |
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} |
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if (listen(listenSocket, LISTEN_BACKLOG) < 0) { |
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printf("\t\nThere was an error telling the socket to "
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"listen for connections from clients. Terminating Server...\n");
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return -1; |
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} |
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connection_pool.set_listen_socket_in_ready_set(listenSocket); |
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//TODO: why is all of this in that if statement and not just conn_pool.maxfd = listenSocket ?
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if (listenSocket > connection_pool.get_max_file_descriptor()) {
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connection_pool.set_max_file_descriptor(listenSocket); |
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int acceptSocket = 0; |
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struct sockaddr_in clientAddr;
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socklen_t clen = sizeof(clientAddr);
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struct timeval selectTimeout;
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memset(&selectTimeout,0,sizeof(selectTimeout)); |
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logger->logMessage(LOG_TYPE_MESSAGE, "Server initialized. About to start listening for connections");
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while(1) { |
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connection_pool.perform_select(listenSocket, &selectTimeout); |
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//either no descriptors are ready or there was an error
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//TODO: check for specific errors
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if (connection_pool.get_number_clients_ready() <= 0) { |
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continue;
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} |
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if (connection_pool.is_socket_ready_to_read(listenSocket)) {
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printf("Something is trying to connect...\n");
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if ((acceptSocket = accept(listenSocket, (struct sockaddr*) &clientAddr, &clen)) < 0) { |
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if (errno == EMFILE) {
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printf("\tWhen attempting to accept a connection, "
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"reached the per process limit of file descriptors."
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" Dropping the new connection.\n");
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continue;
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} else {
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printf("\tThere was an error when attempting to accept a "
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"connection");
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} |
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continue;
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} |
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char logBuffer[LOG_BUFFER_LENGTH];
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snprintf(logBuffer, LOG_BUFFER_LENGTH, "Client at address %s attempting to connect.", inet_ntoa(clientAddr.sin_addr));
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logger->logMessage(LOG_TYPE_CONNECT, logBuffer); |
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//TODO: remove this
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//printf("Attempting to add a client.\n");
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if (connection_pool.add_client(acceptSocket) < 0) { |
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printf("\tThere was an error when trying to add a client to the "
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"connection pool.");
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continue;
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} |
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snprintf(logBuffer, LOG_BUFFER_LENGTH, "Client at address %s successfully added to connection pool.", inet_ntoa(clientAddr.sin_addr));
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logger->logMessage(LOG_TYPE_CONNECT, logBuffer); |
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} |
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if (connection_pool.check_clients() < 0) { |
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printf("\tThere was an error trying to update the clients.");
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continue;
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} |
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} |
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} |
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return 0; |
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} |