diff options
Diffstat (limited to 'test/big.c')
| -rw-r--r-- | test/big.c | 62 |
1 files changed, 61 insertions, 1 deletions
@@ -92,6 +92,61 @@ is_sparse(void) /*------------------------------------------------------------------------- + * Function: enough_room + * + * Purpose: Tries to create a bunch of sparse files to see if quotas will + * get in the way. Some systems also have problems opening + * enough files and we'll check that too. + * + * Return: Success: Non-zero + * + * Failure: zero + * + * Programmer: Robb Matzke + * Thursday, August 6, 1998 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static int +enough_room(void) +{ + int ret_value=0; + int fd[68]; + size_t i, size = (size_t)1 << 30; + char name[32]; + + /* Initialize file descriptors */ + for (i=0; i<NELMTS(fd); i++) fd[i] = -1; + + /* Create files */ + for (i=0; i<NELMTS(fd); i++) { + sprintf(name, FNAME, i); + if ((fd[i]=open(name, O_RDWR|O_CREAT|O_TRUNC, 0666))<0) { + goto done; + } + if ((ssize_t)size != lseek(fd[i], size, SEEK_SET)) { + goto done; + } + if (1!=write(fd[i], "X", 1)) { + goto done; + } + } + ret_value = 1; + + done: + for (i=0; i<NELMTS(fd) && fd[i]>=0; i++) { + sprintf(name, FNAME, i); + close(fd[i]); + unlink(name); + } + + return ret_value; +} + + +/*------------------------------------------------------------------------- * Function: writer * * Purpose: Creates a *big* dataset. @@ -327,11 +382,16 @@ main (void) * We shouldn't run this test if the file system doesn't support holes * because we would generate multi-gigabyte files. */ + puts("Checking if file system is adequate for this test..."); if (!is_sparse()) { puts("Test skipped because file system does not support holes."); exit(0); } - + if (!enough_room()) { + puts("Test skipped because of quota (file size or num open files)."); + exit(0); + } + /* Set the error handler */ H5Eset_auto (display_error_cb, NULL); |