Provided by: libdpm-dev_1.13.0-1_amd64
dpm_accessr - check existence/accessibility of a file replica in the pools
#include <sys/types.h> #include <unistd.h> #include "dpm_api.h" int dpm_accessr (const char *pfn, int amode);
dpm_accessr checks the existence or the accessibility of the file replica according to the dpm. The name server entry for the replica is taken into account and that of the associated pool and, if relevant, the status of an ongoing put request. The physical file name pfn is checked according to the bit pattern in amode
This routine returns 0 if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.
ENOENT The named file does not exist. EACCES Search permission is denied on a component of the parent file prefix, the specified access to the file itself is denied or W_OK is requested but the replica status is not 'P' (cannot modify an existing file). EFAULT pfn is a NULL pointer. EINVAL amode is invalid. ENAMETOOLONG The length of pfn exceeds CA_MAXSFNLEN. SENOSHOST Host unknown. SENOSSERV Service unknown. SECOMERR Communication error. EDPMNACT Disk Pool Manager is not running or is being shutdown. ENSNACT Name server is not running or is being shutdown.