vxfs_ap_query_file - return information about file allocation policies
For 32-bit applications:For both applications:cc -I /opt/VRTS/include -L /opt/VRTS/lib
-l vxfsutil -ldlFor 64-bit applications:
cc -I /opt/VRTS/include -L /opt/VRTS/lib/64
-l vxfsutil -ldld
#include <sys/types.h>
#include <vxfsutil.h>
int vxfs_ap_query_file(int fd, char *datapol, char *metapol, uint32_t *flags);
AVAILABILITY
VRTSvxfs
vxfs_ap_query_file() retrieves the allocation policies assigned to the file specified by fd. The datapol and metapol arguments must point to buffers of (FSAP_NAMESZ + 1) bytes, which are filled in with the name of the policy (if any) and NULL-terminated. If no policy is assigned, the string "NONE" is returned.To use this function, specify -l vxfsutil while linking. Specify the /opt/VRTSfssdk/5.0/lib directory for 32-bit executables, or the /opt/VRTSfssdk/5.0/lib/64 directory for 64-bit executables.
If the LIBVXFSUTIL_DLL_PATH environment variable is defined, it should be set to the name of the vxfsutil.so file, such as ~/mylib/vxfsutil.so. If undefined, this variable is assumed to point to the 32-bit and 64-bit vxfsutil.so files, /opt/VRTSvxfs/lib/vxfsutil.so and /opt/VRTSvxfs/lib/64/vxfsutil.so, respectively.
This API does not require root permission and can be run by any user. This API supports file system versions 6.0 and above.
FSAP_INHERIT Files created in the directory specified by fd inherit the directorys policy assignments.
vxfs_ap_query_file() returns zero on success, non-zero on failure.
EFAULT One or more of the specified pointer arguments points to an illegal address. EFBIG The calling function issued a request with a file offset off past the EOF mark. EINVAL The specified flags are invalid. EIO An I/O error occurred during the operation. ENOSYS There is no license installed to allow this operation. ENOTSUP This operation is not supported by the disk layout version of the specified file system. Use vxupgrade(1m) to enable this operation. ENXIO There is no such device or address.
vxfs_ap_assign_ckpt(3), vxfs_ap_assign_file(3), vxfs_ap_assign_fs(3), vxfs_ap_define(3), vxfs_ap_remove(3), vxfs_ap_enforce_file(3), vxfs_ap_enumerate(3), vxfs_ap_query(3), vxfs_ap_query_ckpt(3), vxfs_ap_query_fs(3), vxfs_vol_add(3), vxfs_vol_deencapsulate(3), vxfs_vol_encapsulate(3), vxfs_vol_enumerate(3), vxfs_vol_remove(3), vxfs_vol_resize(3), vxfs_vol_stat(3)
VxFS 7.3 | vxfs_ap_query_file(3) |