3487 int os::compare_file_modified_times(const char* file1, const char* file2) {
3488   struct timespec filetime1 = get_mtime(file1);
3489   struct timespec filetime2 = get_mtime(file2);
3490   int diff = filetime1.tv_sec - filetime2.tv_sec;
3491   if (diff == 0) {
3492     return filetime1.tv_nsec - filetime2.tv_nsec;
3493   }
3494   return diff;
3495 }
3496 
3497 // Is a (classpath) directory empty?
3498 bool os::dir_is_empty(const char* path) {
3499   DIR *dir = NULL;
3500   struct dirent *ptr;
3501 
3502   dir = opendir(path);
3503   if (dir == NULL) return true;
3504 
3505   // Scan the directory
3506   bool result = true;
3507   char buf[sizeof(struct dirent) + MAX_PATH];
3508   while (result && (ptr = ::readdir(dir)) != NULL) {
3509     if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) {
3510       result = false;
3511     }
3512   }
3513   closedir(dir);
3514   return result;
3515 }
3516 
3517 // This code originates from JDK's sysOpen and open64_w
3518 // from src/solaris/hpi/src/system_md.c
3519 
3520 int os::open(const char *path, int oflag, int mode) {
3521   if (strlen(path) > MAX_PATH - 1) {
3522     errno = ENAMETOOLONG;
3523     return -1;
3524   }
3525   int fd;
3526 
3527   fd = ::open(path, oflag, mode);
3528   if (fd == -1) return -1;

3487 int os::compare_file_modified_times(const char* file1, const char* file2) {
3488   struct timespec filetime1 = get_mtime(file1);
3489   struct timespec filetime2 = get_mtime(file2);
3490   int diff = filetime1.tv_sec - filetime2.tv_sec;
3491   if (diff == 0) {
3492     return filetime1.tv_nsec - filetime2.tv_nsec;
3493   }
3494   return diff;
3495 }
3496 
3497 // Is a (classpath) directory empty?
3498 bool os::dir_is_empty(const char* path) {
3499   DIR *dir = NULL;
3500   struct dirent *ptr;
3501 
3502   dir = opendir(path);
3503   if (dir == NULL) return true;
3504 
3505   // Scan the directory
3506   bool result = true;
3507   while (result && (ptr = readdir(dir)) != NULL) {

3508     if (strcmp(ptr->d_name, ".") != 0 && strcmp(ptr->d_name, "..") != 0) {
3509       result = false;
3510     }
3511   }
3512   closedir(dir);
3513   return result;
3514 }
3515 
3516 // This code originates from JDK's sysOpen and open64_w
3517 // from src/solaris/hpi/src/system_md.c
3518 
3519 int os::open(const char *path, int oflag, int mode) {
3520   if (strlen(path) > MAX_PATH - 1) {
3521     errno = ENAMETOOLONG;
3522     return -1;
3523   }
3524   int fd;
3525 
3526   fd = ::open(path, oflag, mode);
3527   if (fd == -1) return -1;