/* maintain a sorted list of file names; add if not present */
static Content *content_add(const char *name) {
if (!content_head) { /* list empty */
Content *e = content_new(name);
e->next=NULL; content_head=e;
flog("link %s at head",name);
return e;
} else {
Content *f;
for (f=content_head; f->next && strcmp(name,f->name)!=0; f=f->next) ;
if (strcmp(f->name,name)==0) { /* exact match */
flog("reuse record for %s",name);
return f;
} else { // at tail => insert
Content *e = content_new(name);
e->next = NULL; f->next=e;
flog("link %s after %s",name,f->name);
return e;
}
}
}
/*
** Given a UUID, return the corresponding record ID. If the UUID
** does not exist, then return 0.
**
** For this routine, the UUID must be exact. For a match against
** user input with mixed case, use resolve_uuid().
**
** If the UUID is not found and phantomize is 1 or 2, then attempt to
** create a phantom record. A private phantom is created for 2 and
** a public phantom is created for 1.
*/
int uuid_to_rid(const char *zUuid, int phantomize){
int rid, sz;
char z[UUID_SIZE+1];
sz = strlen(zUuid);
if( sz!=UUID_SIZE || !validate16(zUuid, sz) ){
return 0;
}
memcpy(z, zUuid, UUID_SIZE+1);
canonical16(z, sz);
rid = fast_uuid_to_rid(z);
if( rid==0 && phantomize ){
rid = content_new(zUuid, phantomize-1);
}
return rid;
}
