int get_from_input(char **str) {
int read_bytes = 0;
int len = 0;
char *temp_str = *str;
while(1) {
if (processed_ind != 0) {
read_ind -= processed_ind;
memmove(buffer, buffer + processed_ind, read_ind);
processed_ind = 0;
}
temp_str = get_from_buf(&len);
if (temp_str != NULL) {
*str = temp_str;
return len;
} else {
if (BUFSIZE == read_ind) {
while(temp_str == NULL) {
processed_ind = 0;
read_ind = 0;
read_bytes = read(0, buffer, BUFSIZE);
if (read_bytes == 0) {
*str = NULL;
return 0;
} else if (read_bytes < 0){
exit(1);
} else {
read_ind += read_bytes;
}
temp_str = get_from_buf(&len);
}
} else {
read_bytes = read(0, buffer + read_ind, BUFSIZE - read_ind);
if (read_bytes == 0) {
*str = NULL;
return 0;
} else if (read_bytes < 0) {
exit(1);
} else {
read_ind += read_bytes;
}
}
}
}
}
unsigned int kbd_read() {
if (buf_read != buf_write) {
return get_from_buf();
} else {
return 0;
}
}
int mn_recv(int sock, char *client_message, int *mn, struct mes_buf mesbuf[100], struct timeval *timeout, fd_set *readset){
char msg_with_n[BUFLEN], tmp[BUFLEN];
int read_size, new_mn, buf_read_size, reason;
while(reason = select(sock+1, readset, NULL, NULL, timeout) > 0){
if( (read_size = recv(sock , msg_with_n, BUFLEN , 0)) > 0){
if(strncmp(msg_with_n,"BEY",3) == 0){
return -1;
}
new_mn = get_mn(msg_with_n);
if( (buf_read_size = get_from_buf(*mn+1, mesbuf, tmp)) > 0){
*mn = *mn + 1;
strcpy(client_message, tmp);
return buf_read_size;
}
else{
strcpy(tmp, msg_with_n+4);
if( new_mn == *mn + 1){
*mn = *mn + 1;
strcpy(client_message, tmp);
return strlen(client_message);
}
else{
if(new_mn > *mn + 1){
add_to_buf(new_mn, tmp, &mesbuf[100]);
}
if(new_mn < *mn + 1) puts("duplicated message");
}
}
}
}
if( (buf_read_size = get_from_buf(*mn+1, mesbuf, tmp)) > 0){
*mn = *mn + 1;
return buf_read_size;
}
return reason;
}
