static void
binary_protocol_check_file_overflow (void)
{
if (file_size_limit <= 0 || current_file_size < file_size_limit)
return;
close_binary_protocol_file ();
if (current_file_index > 0) {
char *filename = filename_for_index (current_file_index - 1);
unlink (filename);
free_filename (filename);
}
++current_file_index;
current_file_size = 0;
binary_protocol_open_file ();
}
static void
binary_protocol_open_file (void)
{
char *filename;
if (file_size_limit > 0)
filename = filename_for_index (current_file_index);
else
filename = filename_or_prefix;
do {
binary_protocol_file = open (filename, O_CREAT|O_WRONLY|O_TRUNC, 0644);
if (binary_protocol_file == -1 && errno != EINTR)
break; /* Failed */
} while (binary_protocol_file == -1);
if (file_size_limit > 0)
free_filename (filename);
}
static void
binary_protocol_open_file (gboolean assert_on_failure)
{
char *filename;
#ifdef F_SETLK
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_whence = SEEK_SET;
lock.l_start = 0;
lock.l_len = 0;
#endif
if (file_size_limit > 0)
filename = filename_for_index (current_file_index);
else
filename = filename_or_prefix;
do {
binary_protocol_file = open (filename, O_CREAT | O_WRONLY, 0644);
if (binary_protocol_file == -1) {
if (errno != EINTR)
break; /* Failed */
#ifdef F_SETLK
} else if (fcntl (binary_protocol_file, F_SETLK, &lock) == -1) {
/* The lock for the file is already taken. Fail */
close (binary_protocol_file);
binary_protocol_file = -1;
break;
#endif
} else {
/* We have acquired the lock. Truncate the file */
ftruncate (binary_protocol_file, 0);
}
} while (binary_protocol_file == -1);
if (binary_protocol_file == -1 && assert_on_failure)
g_error ("sgen binary protocol: failed to open file");
if (file_size_limit > 0)
free_filename (filename);
}
