Added basic server functionality from ex 2 lesson 11

This commit is contained in:
elvis
2022-03-09 19:24:49 +01:00
parent c0372c44e2
commit d0a4e4411e
9 changed files with 869 additions and 0 deletions

80
src/serverWorker.c Normal file
View File

@ -0,0 +1,80 @@
#include <stdlib.h>
#include <errno.h>
#include <ctype.h>
#include <assert.h>
#include <sys/select.h>
#include <conn.h>
#include <message.h>
// converte tutti i carattere minuscoli in maiuscoli
static void toup(char *str) {
char *p = str;
while(*p != '\0') {
*p = (islower(*p)?toupper(*p):*p);
++p;
}
}
// funzione eseguita dal Worker thread del pool
// gestisce una intera connessione di un client
//
void threadF(void *arg) {
assert(arg);
long* args = (long*)arg;
long connfd = args[0];
long* termina = (long*)(args[1]);
free(arg);
fd_set set, tmpset;
FD_ZERO(&set);
FD_SET(connfd, &set);
do {
tmpset=set;
int r;
// ogni tanto controllo se devo terminare
struct timeval timeout={0, 100000}; // 100 milliseconds
if ((r=select(connfd+1, &tmpset, NULL, NULL, &timeout)) < 0) {
perror("select");
break;
}
if (r==0) {
if (*termina) break;
continue;
}
msg_t str;
int n;
if ((n=readn(connfd, &str.len, sizeof(int))) == -1) {
perror("read1");
break;
}
if (n==0) break;
str.str = calloc((str.len), sizeof(char));
if (!str.str) {
perror("calloc");
fprintf(stderr, "Memoria esaurita....\n");
break;
}
if ((n=readn(connfd, str.str, str.len * sizeof(char))) == -1) {
perror("read2");
free(str.str);
break;
}
toup(str.str);
if ((n=writen(connfd, &str.len, sizeof(int))) == -1) {
perror("write1");
free(str.str);
break;
}
if ((n=writen(connfd, str.str, str.len*sizeof(char))) == -1) {
perror("write2");
free(str.str);
break;
}
free(str.str);
} while(*termina == 0);
close(connfd);
}