NAME

       af_histories, af_access - AtFS history functions

SYNOPSIS

       #include <atfs.h>

       char**af_histories (char *path, char *pattern)

       char**af_cachenames (char *path, char *pattern);

       int   af_access (char *path, char *name, char *type, int mode)

DESCRIPTION

       af_histories returns a list of source history names from the directory pointed to by path, that match the
       given pattern. Histories in a directory are represented by at least one  version.  The  pattern  must  be
       ed(1)  patterns,  processable by re_comp(3) and re_exec(3). The resulting list of af_histories resides in
       allocated memory. Use free(3) to free the memory for further allocation. af_histories  returns  an  empty
       list (not a NULL pointer !), when no histories are found.

       af_cachenames does the same as af_histories but on derived object caches.

       af_access  determines  the existence of an object history.  If any ASO (any version) with the given path,
       name and type attributes exists, af_access returns zero, otherwise -1.  The mode argument can either be

       AF_CLASS_SOURCE
                 indicating that only source objects shall be searched or

       AF_CLASS_DERIVED
                 which means that only the derived object cache shall be searched for existence  of  a  matching
                 ASO.

SEE ALSO

       ed(1), re_comp(3), re_exec(3), free(3)

DIAGNOSTICS

       Upon  error,  -1  or a null pointer (depending on the return type) is returned and af_errno is set to the
       corresponding error number.