asmlinkage ssize_t our_write (int fd, char *buf, size_t count)
{
if(strstr(buf,"sleep"))
return -1;
printk (KERN_INFO "SYS_WRITE: %s\n",buf);
return orig_write(fd,buf,count);
}
ssize_t write(int fd, const void *buf, size_t count)
{
orig_write = dlsym(RTLD_NEXT,"write");
clock_t start = clock();
ssize_t temp = orig_write(fd,buf,count);
clock_t end = clock();
double start_diff = ((double)(start-program_start))/(double)CLOCKS_PER_SEC;
double end_diff = ((double)(end-program_start))/(double)CLOCKS_PER_SEC;
printf("%lf %lf Write Called \n", start_diff, end_diff);
return temp;
}
ssize_t write(int fd, const void *buf, size_t count)
{
int size;
int size_t_count=count;
orig_write_f_type orig_write;
//int gettimeofday(struct timeval *tv, struct timezone *tz);
struct timeval tv0;
struct timeval tv1;
struct timezone tz;
//mtx.lock();
orig_write = (orig_write_f_type)dlsym(RTLD_NEXT,"write");
gettimeofday(&tv0,&tz);
size=orig_write(fd,buf,count);
gettimeofday(&tv1,&tz);
std::string str;
std::ostringstream oss;
oss << "write(" << fd << "," << buf << "," << count << ")\n";
log.add(oss.str());
if (size>=0)
{
if (myiio.existFd(fd)==-1)
{
Ifile ifi;
ifi.setFd(fd);
ifi.setName(getStrFDInfo(fd));
//ifi.setName(std::string("UNKNOWN-WRITE"));
ifi.setState(IOBYFILE_WRITE);
myiio.iiof.push_back(ifi);
}
add_write_count(fd,size);
add_write_time(fd,tv0,tv1);
}
//mtx.unlock();
return size;
}
