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/* B01902062 藍挺瑋 */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "common.h"
#include "server.h"
#include "proc.h"
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <sys/select.h>
#include <sys/time.h>
#include <unistd.h>
static volatile sig_atomic_t proc_message_request;
static volatile sig_atomic_t proc_quit_request;
static void proc_quit_request_setter (int signo) {
proc_quit_request = 1;
}
static void proc_message_request_setter (int signo) {
proc_message_request = 1;
}
static void proc_message_print (server* svr, request* req, int maxfd) {
putchar ('\n');
printf (
"Dump server information ...\n"
#ifdef READ_SERVER
" This is read_server\n"
#endif
#ifdef WRITE_SERVER
" This is write_server\n"
#endif
" Server hostname: %s\n"
" Server port: %hu\n"
" Server maxfd: %d\n"
" Server is listening on fd %d\n",
svr->hostname, svr->port, maxfd, svr->listen_fd);
puts ("Dump request table ...");
for (int i = 0; i < maxfd; i++) {
if (req[i].active) {
printf (
" Client %d hostname: %s\n"
" Client %d filename: %s\n"
" Client %d filename done: %s\n"
" Client %d transfer started: %s\n",
i, req[i].host,
i, req[i].filename,
i, req[i].header_done ? "true" : "false",
i, req[i].header_accept ? "true" : "false");
}
}
puts ("Dump file table ...");
for (int i = 0; i < maxfd; i++) {
if (svr->file_table->flist[i].active) {
printf (
" Entry %d reference count: %d\n"
" Entry %d device: %llu\n"
" Entry %d inode: %llu\n"
" Entry %d file descriptors:",
i, svr->file_table->flist[i].ref_count,
i, (unsigned long long)svr->file_table->flist[i].fdev,
i, (unsigned long long)svr->file_table->flist[i].fino, i);
for (int j = 0; j < maxfd; j++) {
if (FD_ISSET (j, &svr->file_table->flist[i].fset))
printf (" %d", j);
}
putchar ('\n');
}
}
puts ("Type Ctrl-\\ to terminate the server\n");
proc_message_request = 0;
}
#ifndef HAVE_GETDTABLESIZE
static int my_getdtablesize (void) {
long rval = sysconf (_SC_OPEN_MAX);
if (rval < 0) {
# ifdef _POSIX_OPEN_MAX
rval = _POSIX_OPEN_MAX
# else
rval = 20;
# endif
}
return rval;
}
#endif
int main (int argc, char** argv) {
if (argc != 2) {
fprintf(stderr, "usage: %s [port]\n", argv[0]);
exit(1);
}
// Setup signal handlers
struct sigaction signal_action = {
.sa_handler = SIG_IGN,
.sa_flags = 0
};
sigemptyset (&signal_action.sa_mask);
sigaction (SIGPIPE, &signal_action, NULL);
signal_action.sa_handler = proc_message_request_setter;
sigaction (SIGINT, &signal_action, NULL);
signal_action.sa_handler = proc_quit_request_setter;
sigaction (SIGQUIT, &signal_action, NULL);
// Get file descripter table size
#ifdef HAVE_GETDTABLESIZE
int maxfd = getdtablesize();
#else
int maxfd = my_getdtablesize();
#endif
if (maxfd < 0)
e_err_exit ("getdtablesize");
// Initialize server
server svr; // server
server_init(&svr, (unsigned short) atoi(argv[1]), maxfd);
// Initialize request table
request* requestP = NULL; // point to a list of requests
requestP = (request*) e_malloc(sizeof(request) * maxfd);
for (int i = 0; i < maxfd; i++)
request_init(&requestP[i]);
requestP[svr.listen_fd].conn_fd = svr.listen_fd;
strcpy(requestP[svr.listen_fd].host, svr.hostname);
// Loop for handling connections
printf("\nstarting on %.80s, port %d, fd %d, maxfd %d ...\n",
svr.hostname, svr.port, svr.listen_fd, maxfd);
while (!proc_quit_request) {
procconn (&svr, requestP, maxfd, (struct timeval) { 1, 0 });
if (proc_message_request) {
proc_message_print (&svr, requestP, maxfd);
}
}
printf("\nquitting...\n");
for (int i = 0; i < maxfd; i++) {
if (requestP[i].filename != NULL) {
free (requestP[i].filename);
requestP[i].filename = NULL;
}
}
free(requestP);
server_free(&svr);
return 0;
}
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