8f243019c3578964dcdb2872453a67562da78337
braney
  Sun Mar 26 13:05:56 2023 -0700
increment trackDb version so cached versions with a non-cloned
errMessage are expired.

diff --git src/hg/inc/trackDb.h src/hg/inc/trackDb.h
index cb71a72..b7ef667 100644
--- src/hg/inc/trackDb.h
+++ src/hg/inc/trackDb.h
@@ -1,763 +1,763 @@
 /* trackDb.h was originally generated by the autoSql program, which also
  * generated trackDb.c and trackDb.sql.  This header links the database and
  * the RAM representation of objects. */
 
 /* Copyright (C) 2014 The Regents of the University of California 
  * See kent/LICENSE or http://genome.ucsc.edu/license/ for licensing information. */
 
 #ifndef TRACKDB_H
 #define TRACKDB_H
 
 struct trackDb;         // forward definition for use in cart.h
 
 #include "common.h"
 
 #ifndef JKSQL_H
 #include "jksql.h"
 #endif
 
 #ifndef LINEFILE_H
 #include "linefile.h"
 #endif
 
 #ifndef CART_H
 #include "cart.h"
 #endif
 
 #define TRACKDB_NUM_COLS 21
 
 // Forward definitions
 struct tdbExtras;
 
 // A structure to keep track of our min and max values if we're a wig 
 struct minMax 
 {
     double min, max;
 };
 
 /* DO NOT CHANGE THE TRACKDB STRUCTURE WITHOUT INCREMENTING THE VERSION NUMBER */
 /* This number is tacked onto the end of cached trackDb entries to make sure we
  * don't use a cached structure that has different contents. */
-#define TRACKDB_VERSION 5
+#define TRACKDB_VERSION 6
 
 struct trackDb
 /* This describes an annotation track.  */
 /* DO NOT CHANGE THE TRACKDB STRUCTURE WITHOUT INCREMENTING THE VERSION NUMBER */
     {
     struct trackDb *next;  /* Next in singly linked list.  Next sibling in tree. */
     char *track; /* Symbolic ID of Track - used in cart. Is tableName in database historically. */
     char *table; /* Symbolic ID of Table - used in database. Same as track usually. */
     char *shortLabel;	/* Short label displayed on left */
     char *type;	/* Track type: bed, psl, genePred, etc. */
     char *longLabel;	/* Long label displayed in middle */
     unsigned char visibility;	/* 0=hide, 1=dense, 2=full, 3=pack, 4=squish */
     float priority;	/* 0-100 - where to position.  0 is top */
     unsigned char colorR;	/* Color red component 0-255 */
     unsigned char colorG;	/* Color green component 0-255 */
     unsigned char colorB;	/* Color blue component 0-255 */
     unsigned char altColorR;	/* Light color red component 0-255 */
     unsigned char altColorG;	/* Light color green component 0-255 */
     unsigned char altColorB;	/* Light color blue component 0-255 */
     unsigned char useScore;	/* 1 if use score, 0 if not */
 /* DO NOT CHANGE THE TRACKDB STRUCTURE WITHOUT INCREMENTING THE VERSION NUMBER */
 #ifndef	__cplusplus
     unsigned char private;	/* 1 if only want to show it on test site */
 #else
     unsigned char priv;		/* don't conflict with C++ keyword */
 #endif
     int restrictCount;	/* Number of chromosomes this is on (0=all though!) */
     char **restrictList;	/* List of chromosomes this is on */
     char *url;	/* URL to link to when they click on an item */
     char *html;	/* Some html to display when they click on an item */
     char *grp;	/* Which group track belongs to */
     unsigned char canPack;	/* 1 if can pack track display, 0 otherwise */
     char *settings;	/* Name/value pairs for track-specific stuff */
     struct hash *viewHash;  /* Hash for settings. Not saved in database.*/
     struct hash *settingsHash;  /* Hash for settings. Not saved in database.
                                  * Don't use directly, rely on trackDbSetting to access. */
     /* additional info, determined from settings */
 /* DO NOT CHANGE THE TRACKDB STRUCTURE WITHOUT INCREMENTING THE VERSION NUMBER */
     char treeNodeType;          // bit map containing defining supertrack, composite and children
                                 //     of same (may be parent & child)
     struct trackDb *parent;     // parent of composite or superTracks
     struct trackDb *subtracks;  // children of composite not supers. NOTE: only in one sl at a time!
     struct slRef *children;     // children of folders (superTracks) only.
                                 // Needed as slRef since these children are on the main trackList
                                 // and can't be in 2 sl's at once
     char *parentName;           // set if this is a supertrack member 
     boolean isShow;             // for supertracks: true if supertrack with pseudo-vis 'show'
     struct hash *overrides;     /* If not NULL, this is an override
                                  * entry.  It contains the names, but not the
                                  * values of the fields and settings that were
                                  * specified in the entry. */
     struct tdbExtras *tdbExtras;// This struct allows storing extra values which may be used
                                 // multiple times within a single cgi. An example is the metadata
                                 // looked up once in the metaDb and used again and again.
     struct hash *isNewFilterHash;    // if a field is specified in the "new" way, the trackDb variable will be in this hash
     char *errMessage;           // if there's an error in the trackDb specification, there will be a message in here
 /* DO NOT CHANGE THE TRACKDB STRUCTURE WITHOUT INCREMENTING THE VERSION NUMBER */
     };
 
 #define FOLDER_MASK                      0x10
 #define COMPOSITE_MASK                   0x20
 #define MULTI_TRACK_MASK                 0x80
 #define FOLDER_CHILD_MASK                0x01
 #define COMPOSITE_CHILD_MASK             0x02
 #define COMPOSITE_VIEW_MASK              0x04
 #define MULTI_TRACK_CHILD_MASK           0x08
 #define PARENT_MASK                      0xF0
 #define CHILD_MASK                       0x0F
 #define TREETYPE_MASK                    0xFF
 #define PARENT_NODE(nodeType)            ((nodeType) & PARENT_MASK)
 #define CHILD_NODE(nodeType)             ((nodeType) & CHILD_MASK)
 #define FOLDER_NODE(nodeType)            ((nodeType) & FOLDER_MASK)
 #define COMPOSITE_NODE(nodeType)         ((nodeType) & COMPOSITE_MASK)
 #define MULTI_TRACK_NODE(nodeType)       ((nodeType) & MULTI_TRACK_MASK)
 #define CONTAINER_NODE(nodeType)         ((nodeType) & (MULTI_TRACK_MASK | COMPOSITE_MASK))
 #define FOLDER_CHILD_NODE(nodeType)      ((nodeType) & FOLDER_CHILD_MASK)
 #define COMPOSITE_CHILD_NODE(nodeType)   ((nodeType) & COMPOSITE_CHILD_MASK)
 #define COMPOSITE_VIEW_NODE(nodeType)    ((nodeType) & COMPOSITE_VIEW_MASK)
 #define MULTI_TRACK_CHILD_NODE(nodeType) ((nodeType) & MULTI_TRACK_CHILD_MASK)
 #define CONTAINER_CHILD_NODE(nodeType)   ((nodeType) & \
                                                    (MULTI_TRACK_CHILD_MASK | COMPOSITE_CHILD_MASK))
 #define INDEPENDENT_NODE(nodeType)      (((nodeType) & TREETYPE_MASK) == 0 )
 #define SOLO_NODE(nodeType)             (((nodeType) & TREETYPE_MASK) <= FOLDER_CHILD_MASK)
 //#define tdbIsParent(tdb)     ((tdb)->subtracks)
 //#define tdbIsChild(tdb)      ((tdb)->parent   )
 //#define tdbIsTreeLeaf(tdb)   ( CHILD_NODE((tdb)->treeNodeType) && !tdbIsParent(tdb))
 //#define tdbIsTreeRoot(tdb)   (PARENT_NODE((tdb)->treeNodeType) && !tdbIsChild(tdb) )
 //#define tdbIsTreeBranch(tdb) (  !INDEPENDENT_NODE((tdb)->treeNodeType)
 //                             &&  tdbIsParent(tdb) &&  tdbIsChild(tdb))
 //#define tdbIsNotInTree(tdb)  (   INDEPENDENT_NODE((tdb)->treeNodeType)
 //                             && !tdbIsParent(tdb) && !tdbIsChild(tdb))
 
 // --- Folders are superTracks.  Currently only one level deep
 INLINE void tdbMarkAsFolder(struct trackDb *tdb)
 // Marks a trackDb struct as a supertrack
 {
 tdb->treeNodeType |= FOLDER_MASK;
 }
 #define tdbMarkAsSuperTrack(tdb) tdbMarkAsFolder(tdb)
 
 INLINE void tdbMarkAsFolderChild(struct trackDb *tdb)
 // Marks a trackDb struct as a child of a folder
 {
 tdb->treeNodeType |= FOLDER_CHILD_MASK;
 }
 #define tdbMarkAsSuperTrackChild(tdb) tdbMarkAsFolderChild(tdb)
 
 INLINE boolean tdbIsFolder(struct trackDb *tdb)
 // Is this trackDb struct marked as a folder ?
 {
 return tdb && FOLDER_NODE(tdb->treeNodeType);  // && tdb->children
 //  NOTE: The children list is not always filled in, but should be
 }
 #define tdbIsSuper(tdb) tdbIsFolder(tdb)
 #define tdbIsSuperTrack(tdb) tdbIsFolder(tdb)
 
 INLINE boolean tdbIsFolderContent(struct trackDb *tdb)
 // Is this trackDb struct marked as a contained in a folder ?
 {
 return tdb && tdb->parent && FOLDER_CHILD_NODE(tdb->treeNodeType);
 }
 #define tdbIsSuperTrackChild(tdb) tdbIsFolderContent(tdb)
 
 INLINE struct trackDb *tdbGetImmediateFolder(struct trackDb *tdb)
 // Return closest ancestor who is a folder track.
 {
 struct trackDb *parent = tdb->parent;
 for ( ; parent != NULL && !tdbIsFolder(parent); parent = parent->parent)
     ;
 return parent;
 }
 #define tdbGetSuperTrack(tdb) tdbGetImmediateFolder(tdb)
 
 
 // --- Composites are 2 or 3 level containers of tracks organized into a single hgTrackUi cfg page
 INLINE void tdbMarkAsComposite( struct trackDb *tdb)
 // Marks a trackDb struct as a composite track
 {
 tdb->treeNodeType |= COMPOSITE_MASK;
 }
 
 INLINE void tdbMarkAsCompositeView( struct trackDb *tdb)
 // Marks a trackDb struct as a view of a composite track
 {
 tdb->treeNodeType |= COMPOSITE_VIEW_MASK;
 }
 
 INLINE void tdbMarkAsCompositeChild( struct trackDb *tdb)
 // Marks a trackDb struct as a child or subtrack of a composite track
 {
 tdb->treeNodeType |= COMPOSITE_CHILD_MASK;
 }
 #define tdbMarkAsCompositeSubtrack(tdb) tdbMarkAsCompositeChild(tdb)
 
 INLINE boolean tdbIsComposite( struct trackDb *tdb)
 // Is this trackDb struct marked as a composite with children ?
 {
 return tdb && tdb->subtracks && COMPOSITE_NODE( tdb->treeNodeType);
 }
 
 INLINE boolean tdbIsCompositeView(struct trackDb *tdb)
 // Is this trackDb struct marked as a view of a composite track ?
 {
 return tdb && tdb->parent && tdb->subtracks && COMPOSITE_VIEW_NODE( tdb->treeNodeType);
 }
 
 INLINE boolean tdbIsCompositeChild(struct trackDb *tdb)
 // Is this trackDb struct marked as a child of a composite track ?
 {
 return tdb && tdb->parent && COMPOSITE_CHILD_NODE(tdb->treeNodeType);
 }
 #define tdbIsCompositeSubtrack(tdb) tdbIsCompositeChild(tdb)
 
 INLINE struct trackDb *tdbGetComposite(struct trackDb *tdb)
 // Return closest ancestor who is a composite track.
 {
 struct trackDb *parent = tdb->parent;
 for ( ; parent != NULL && !tdbIsComposite(parent); parent = parent->parent)
     ;
 return parent;
 }
 
 
 // --- MultiTracks are container tracks with one level of subtracks
  //                combined into a unified hgTracks image track
 INLINE void tdbMarkAsMultiTrack( struct trackDb *tdb)
 // Marks a trackDb struct as a multiTrack (like multiWig)
 {
 tdb->treeNodeType |= MULTI_TRACK_MASK;
 }
 
 INLINE void tdbMarkAsMultiTrackChild( struct trackDb *tdb)
 // Marks a trackDb struct as a child of a multiTrack (like multiWig)
 {
 tdb->treeNodeType |= MULTI_TRACK_CHILD_MASK;
 }
 #define tdbMarkAsMultiTrackSubtrack(tdb) tdbMarkAsMultiTrackChild(tdb)
 
 INLINE boolean tdbIsMultiTrack( struct trackDb *tdb)
 // Is this trackDb struct marked as a multiTrack (like multiWig) ?
 {
 return tdb && tdb->subtracks && MULTI_TRACK_NODE( tdb->treeNodeType);
 }
 
 INLINE boolean tdbIsMultiTrackChild(struct trackDb *tdb)
 // Is this trackDb struct marked as a child of a multiTrack (like multiWig) ?
 {
 return tdb && tdb->parent && MULTI_TRACK_CHILD_NODE(tdb->treeNodeType);
 }
 #define tdbIsMultiTrackSubtrack(tdb) tdbIsMultiTrackChild(tdb)
 
 INLINE struct trackDb *tdbGetMultiTrack(struct trackDb *tdb)
 // Return closest ancestor who is a multiTrack.
 {
 struct trackDb *parent = tdb->parent;
 for ( ; parent != NULL && !tdbIsMultiTrack(parent); parent = parent->parent)
     ;
 return parent;
 }
 
 
 // --- CONTAINERS are composites or multiTracks, which behave in similar ways thru some code paths
 INLINE boolean tdbIsContainer( struct trackDb *tdb)
 // Is this trackDb struct marked as a composite or multiTrack with children ?
 {
 return tdb && tdb->subtracks && CONTAINER_NODE(tdb->treeNodeType);
 }
 
 INLINE boolean tdbIsContainerChild(struct trackDb *tdb)
 // Is this trackDb struct marked as a child of a composite or multiTrack ?
 {
 return tdb && tdb->parent && CONTAINER_CHILD_NODE(tdb->treeNodeType);
 }
 #define tdbIsSubtrack(tdb) tdbIsContainerChild(tdb)
 
 INLINE struct trackDb *tdbGetContainer(struct trackDb *tdb)
 // Return closest ancestor who is a container track.
 {
 struct trackDb *parent = tdb->parent;
 for ( ; parent != NULL && !tdbIsContainer(parent); parent = parent->parent)
     ;
 return parent;
 }
 
 // Solo (or stand alone) tracks are non-containers which may only be contained by folders
 INLINE boolean tdbIsSoloTrack(struct trackDb *tdb)
 // Is this trackDb struct marked as a solo so it should have data
 {
 return tdb && SOLO_NODE(tdb->treeNodeType);
 }
 #define tdbIsStandAlone(tdb) tdbIsSoloTrack(tdb)
 #define tdbIsDataTrack(tdb) (tdbIsSoloTrack(tdb) || tdbIsSubtrack(tdb))
 
 // TrackUi Top level means composite, multitrack or solo
 // These are not folders, views or subtracks.
 #define tdbIsTrackUiTopLevel(tdb) (tdbIsContainer(tdb) || tdbIsSoloTrack(tdb))
 
 #define DOWNLOADS_ONLY_TYPE  "downloadsOnly"
 INLINE boolean tdbIsDownloadsOnly(struct trackDb *tdb)
 // Is this a downloadsOnly tdb
 {
 return (tdb && sameWord(tdb->type,DOWNLOADS_ONLY_TYPE));
 }
 
 
 struct trackDb *trackDbLoad(char **row);
 /* Load a trackDb from row fetched with select * from trackDb
  * from database.  Dispose of this with trackDbFree(). */
 
 struct trackDb *trackDbLoadAll(char *fileName);
 /* Load all trackDb from whitespace-separated file.
  * Dispose of this with trackDbFreeList(). */
 
 struct trackDb *trackDbLoadWhere(struct sqlConnection *conn, char *table,
 	char *where);
 /* Load all trackDb from table that satisfy where clause. The
  * where clause may be NULL in which case whole table is loaded
  * Dispose of this with trackDbFreeList(). */
 
 struct trackDb *trackDbLoadAllByChar(char *fileName, char chopper);
 /* Load all trackDb from chopper separated file.
  * Dispose of this with trackDbFreeList(). */
 
 #define trackDbLoadAllByTab(a) trackDbLoadAllByChar(a, '\t');
 /* Load all trackDb from tab separated file.
  * Dispose of this with trackDbFreeList(). */
 
 struct trackDb *trackDbCommaIn(char **pS, struct trackDb *ret);
 /* Create a trackDb out of a comma separated string.
  * This will fill in ret if non-null, otherwise will
  * return a new trackDb */
 
 void trackDbFree(struct trackDb **pEl);
 /* Free a single dynamically allocated trackDb such as created
  * with trackDbLoad(). */
 
 void trackDbFreeList(struct trackDb **pList);
 /* Free a list of dynamically allocated trackDb's */
 
 void trackDbOutput(struct trackDb *el, FILE *f, char sep, char lastSep);
 /* Print out trackDb.  Separate fields with sep. Follow last field with lastSep. */
 
 #define trackDbTabOut(el,f) trackDbOutput(el,f,'\t','\n');
 /* Print out trackDb as a line in a tab-separated file. */
 
 #define trackDbCommaOut(el,f) trackDbOutput(el,f,',',',');
 /* Print out trackDb as a comma separated list including final comma. */
 
 /* ----------- End of AutoSQL generated code --------------------- */
 
 struct trackDb *trackDbNew();
 /* Allocate a new trackDb with just very minimal stuff filled in. */
 
 int trackDbCmp(const void *va, const void *vb);
 /* Sort track by priority. */
 
 int trackDbCmpShortLabel(const void *va, const void *vb);
 /* Sort track by shortLabel. */
 
 void trackDbOverridePriority(struct hash *tdHash, char *priorityRa);
 /* Override priority settings using a ra file. */
 
 struct trackDb *trackDbFromRa(char *raFile, char *releaseTag, struct dyString *incFiles);
 /* Load track info from ra file into list.  If releaseTag is non-NULL
  * then only load tracks that mesh with release. if incFiles is non-null, 
  * add included file names to it.*/
 
 struct trackDb *trackDbFromOpenRa(struct lineFile *lf, char *releaseTag, struct dyString *incFiles);
 /* Load track info from ra file already opened as lineFile into list.  If releaseTag is
  * non-NULL then only load tracks that mesh with release. If incFiles is not-NULL, put
  * list of included files in there. */
 
 void trackDbPolish(struct trackDb *bt);
 /* Fill in missing values with defaults. */
 
 void trackDbFieldsFromSettings(struct trackDb *td);
 /* Update trackDb fields from settings hash */
 
 char *trackDbLocalSetting(struct trackDb *tdb, char *name);
 /* Return setting from tdb, but *not* any of it's parents. */
 
 struct hash *trackDbHashSettings(struct trackDb *tdb);
 /* Force trackDb to hash up it's settings.  Usually this is just
  * done on demand. Returns settings hash. */
 
 struct hash *trackDbSettingsFromString(struct trackDb *tdb, char *string);
 /* Return hash of key/value pairs from string.  Differs
  * from raFromString in that it passes the key/val
  * pair through the backwards compatability routines. */
 
 boolean trackDbNoInheritField(char *field);
 /* Suppress inheritance of specific fields */
 
 char *trackDbSetting(struct trackDb *tdb, char *name);
 /* Return setting string or NULL if none exists. */
 
 void trackDbAddSetting(struct trackDb *bt, char *name, char *val);
 /* Add a setting to a trackDb rec */
 
 boolean trackDbSettingOn(struct trackDb *tdb, char *name);
 /* Return true if a tdb setting is "on" "true" or "enabled". */
 
 char *trackDbRequiredSetting(struct trackDb *tdb, char *name);
 /* Return setting string or squawk and die. */
 
 char *trackDbSettingOrDefault(struct trackDb *tdb, char *name, char *defaultVal);
 /* Return setting string, or defaultVal if none exists */
 
 struct hashEl *trackDbSettingsLike(struct trackDb *tdb, char *wildStr);
 /* Return a list of settings whose names match wildStr (may contain wildcard
  * characters).  Free the result with hashElFreeList. */
 
 float trackDbFloatSettingOrDefault(struct trackDb *tdb, char *name, float defaultVal);
 /* Return setting, convert to a float, or defaultVal if none exists */
 
 void trackDbSuperMarkup(struct trackDb *tdbList);
 /* Get info from supertrack setting.  There are 2 forms:
  * Parent:   'supertrack on [show]'
  * Child:    'supertrack <parent> [vis]
  * Returns NULL if there is no such setting */
 
 char *trackDbInclude(char *raFile, char *line, char **releaseTag);
 /* Get include filename from trackDb line.
    Return NULL if line doesn't contain include */
 
 char *trackDbOrigAssembly(struct trackDb *tdb);
 /* return setting from trackDb, if any */
 
 void trackDbPrintOrigAssembly(struct trackDb *tdb, char *database);
 /* Print lift information from trackDb, if any */
 
 // Not all track types have separate configuration
 typedef enum _eCfgType
     {
     cfgNone     =0,
     cfgBedScore =1,
     cfgWig      =2,
     cfgWigMaf   =3,
     cfgPeak     =4,
     cfgGenePred =5,
     cfgChain    =6,
     cfgNetAlign =7,
     cfgBedFilt  =8,
     cfgBam      =9,
     cfgPsl      =10,
     cfgVcf      =11,
     cfgSnake    =12,
     cfgLong     =13,
     cfgBarChart =14,
     cfgInteract =15,
     cfgLollipop =16,
     cfgHic      =17,
     cfgBigDbSnp =19,
     cfgBigRmsk  =20,
     cfgUndetermined // Not specifically denied, but not determinable in lib code
     } eCfgType;
 
 eCfgType cfgTypeFromTdb(struct trackDb *tdb, boolean warnIfNecessary);
 /* determine what kind of track specific configuration is needed,
    warn if not multi-view compatible */
 
 int configurableByAjax(struct trackDb *tdb, eCfgType cfgTypeIfKnown);
 // Is this track configurable by right-click popup, or in hgTrackUi subCfg?
 // returns 0 = nothing to cfg; <0=blocked via ajax; >0=allowed and will be cfgType if determinable
 
 void trackDbOverride(struct trackDb *td, struct trackDb *overTd);
 /* apply an trackOverride trackDb entry to a trackDb entry */
 
 #ifdef OLD
 char *trackDbCompositeSettingByView(struct trackDb *parentTdb, char* view, char *name);
 /* Get a trackDb setting at the view level for a multiview composite.
    returns a string that must be freed */
 #endif /* OLD */
 
 char *trackDbSettingByView(struct trackDb *tdb, char *name);
 /* For a subtrack of a multiview composite, get a setting stored in the parent settingByView.
    returns a string that must be freed */
 
 #define trackDbSettingClosestToHome(tdb, name) trackDbSetting(tdb, name)
 
 #ifdef OLD
 char *trackDbSettingClosestToHome(struct trackDb *tdb, char *name);
 /* Look for a trackDb setting from lowest level on up through chain of ancestors. */
 #endif /* OLD */
 
 char *trackDbSettingClosestToHomeOrDefault(struct trackDb *tdb, char *name, char *defaultVal);
 /* Look for a trackDb setting (or default) from lowest level on up through chain of ancestors. */
 
 boolean trackDbSettingClosestToHomeOn(struct trackDb *tdb, char *name);
 /* Return true if a tdb setting closest to home is "on" "true" or "enabled". */
 
 struct trackDb *subTdbFind(struct trackDb *parent,char *table);
 /* Return subTrack tdb if it exists in parent. */
 
 struct trackDb *tdbFindOrCreate(char *db,struct trackDb *parent,char *table);
 /* Find or creates the tdb for this table. May return NULL. */
 
 boolean tdbIsView(struct trackDb *tdb,char **viewName);
 // Is this tdb a view?  Will fill viewName if provided
 
 char *tdbGetViewName(struct trackDb *tdb);
 // returns NULL the view name for view or child track (do not free)
 
 void parseColor(char *text, unsigned char *r, unsigned char *g, unsigned char *b);
 /* Turn comma-separated string of three numbers into three
  * color components. */
 
 int parentTdbAbandonTablelessChildren(char *db, struct trackDb *parentTdb);
 /* abandons tableless children from a container tdb, such as a composite
    returns count of children that have been abandoned */
 
 struct trackDb *trackDbLinkUpGenerations(struct trackDb *tdbList);
 /* Convert a list to a forest - filling in parent and subtrack pointers.
  * The exact topology of the forest is a little complex due to the
  * fact there are two "inheritance" systems - the superTrack system
  * and the subTrack system.  In the superTrack system (which is on it's
  * way out)  the superTrack's themselves have the tag:
  *     superTrack on
  * and the children of superTracks have the tag:
  *     superTrack parentName
  * In the subTrack system the parents have the tag:
  *     compositeTrack on
  * and the children have the tag:
  *     subTrack parentName
  * In this routine the subtracks are removed from the list, and stuffed into
  * the subtracks lists of their parents.  The highest level parents stay on
  * the list.  There can be multiple levels of inheritance.
  *    For the supertracks the _parents_ are removed from the list.  The only
  * reference to them in the returned forest is that they are in the parent
  * field of their children.  The parents of supertracks have no subtracks
  * after this call currently. */
 
 void trackDbPrioritizeContainerItems(struct trackDb *tdbList);
 /* Set priorities in containers if they have no priorities already set
    priorities are based upon 'sortOrder' setting or else shortLabel */
 
 void trackDbAddTableField(struct trackDb *tdbList);
 /* Add table field by looking it up in settings.  */
 
 struct slRef *trackDbListGetRefsToDescendants(struct trackDb *tdbForest);
 /* Return reference list to everything in forest. Do slFreeList when done. */
 
 struct slRef *trackDbListGetRefsToDescendantLeaves(struct trackDb *tdbForest);
 /* Return reference list all leaves in forest. Do slFreeList when done. */
 
 int trackDbRefCmp(const void *va, const void *vb);
 /* Do trackDbCmp on list of references as opposed to actual trackDbs. */
 
 int trackDbCountDescendants(struct trackDb *tdb);
 /* Count the number of tracks in subtracks list and their subtracks too . */
 
 int trackDbCountDescendantLeaves(struct trackDb *tdb);
 /* Count the number of leaves in children list and their children. */
 
 struct trackDb *trackDbTopLevelSelfOrParent(struct trackDb *tdb);
 /* Look for a parent who is a composite or multiTrack track and return that.  Failing that
  * just return self. */
 
 boolean trackDbUpdateOldTag(char **pTag, char **pVal);
 /* Look for obscolete tags and update them to new format.  Return TRUE if any update
  * is done.  Will allocate fresh memory for new tag and val if updated. */
 
 boolean trackDbCheckValidRelease(char *tag);
 /* check to make sure release tag is valid */
 
 struct slName *trackDbLocalSettingsWildMatch(struct trackDb *tdb, char *expression);
 // Return local settings that match expression else NULL.  In alpha order.
 
 struct slName *trackDbSettingsWildMatch(struct trackDb *tdb, char *expression);
 // Return settings in tdb tree that match expression else NULL.  In alpha order, no duplicates.
 
 // Forward defs for tdbExtras
 struct mdbObj;
 struct _membersForAll;
 struct _membership;
 
 enum filterCompositeType 
 // Filter composites are drop-down checkbox-lists for selecting subtracks (eg hg19::HAIB TFBS)
     {
     fctNone=0,      // do not offer filter for this dimension
     fctOne=1,       // filter composite by one or all
     fctOneOnly=2,   // filter composite by only one
     fctMulti=3,     // filter composite by multiselect: all, one or many
     };
 
 typedef struct _members
     {
     int count;
     char * groupTag;
     char * groupTitle;
     char **tags;
     char **titles;
     boolean *selected;
     char * setting;
     int *subtrackCount;              // count of subtracks
     int *currentlyVisible;           // count of visible subtracks 
     struct slRef **subtrackList;     // set of subtracks belonging to each subgroup member
     enum filterCompositeType fcType; // fctNone,fctOne,fctMulti
     } members_t;
 
 struct tdbExtras
 #define TDB_EXTRAS_EMPTY_STATE 666
 // Struct for misc. data collected/calculated during CGI track setup that are cached for later use.
 // These extras are primarily used in hgTracks & hgTrackUi but can be used and expanded as needed.
 // CGI developers are encouraged to add to this structure for their own needs.
     {
     int fourState; // hgTrackUi subtracks use 4 state checkboxes (checked/un by enabled/dis)
     boolean reshapedComposite; // hgTracks should not "reshape" composites more than once.
     struct mdbObj *mdb;        // several CGIs need repeated access to a tracks metadata
     struct _membersForAll *membersForAll; // hgTrackUi composites collect all view/dimension info
     struct _membership *membership;       // hgTrackUi subtracks have individual membership info
 
     // Developer: please add your useful data that is costly to calculate/retrieve more than once
     struct hash *membersHash;
 
     // keep track of our children's min and max if we're scaling over all of them
     struct minMax *minMax;
     };
 
 void tdbExtrasFree(struct tdbExtras **pTdbExtras);
 // Frees the tdbExtras structure
 
 int tdbExtrasFourState(struct trackDb *tdb);
 // Returns subtrack four state if known, else TDB_EXTRAS_EMPTY_STATE
 
 void tdbExtrasFourStateSet(struct trackDb *tdb,int fourState);
 // Sets subtrack four state
 
 boolean tdbExtrasReshapedComposite(struct trackDb *tdb);
 // Returns TRUE if composite has been declared as reshaped, else FALSE.
 
 void tdbExtrasReshapedCompositeSet(struct trackDb *tdb);
 // Declares that the composite has been reshaped.
 
 struct mdbObj *tdbExtrasMdb(struct trackDb *tdb);
 // Returns mdb metadata if already known, else NULL
 
 void tdbExtrasMdbSet(struct trackDb *tdb,struct mdbObj *mdb);
 // Sets the mdb metadata structure for later retrieval.
 
 struct _membersForAll *tdbExtrasMembersForAll(struct trackDb *tdb);
 // Returns composite view/dimension members for all, else NULL.
 
 void tdbExtrasMembersForAllSet(struct trackDb *tdb, struct _membersForAll *membersForAll);
 // Sets the composite view/dimensions members for all for later retrieval.
 
 members_t *tdbExtrasMembers(struct trackDb *tdb, char *groupNameOrTag);
 // Returns subtrack members if already known, else NULL
 
 void tdbExtrasMembersSet(struct trackDb *tdb,  char *groupNameOrTag,  members_t *members);
 // Sets the subtrack members for later retrieval.
 
 struct _membership *tdbExtrasMembership(struct trackDb *tdb);
 // Returns subtrack membership if already known, else NULL
 
 void tdbExtrasMembershipSet(struct trackDb *tdb,struct _membership *membership);
 // Sets the subtrack membership for later retrieval.
 
 char *tdbBigFileName(struct sqlConnection *conn, struct trackDb *tdb);
 // Return file name associated with bigWig.  Do a freeMem on returned string when done.
 
 boolean rTdbTreeCanPack(struct trackDb *tdb);
 // Trees can pack as all or none, since they can share vis.
 
 void tdbSetCartVisibility(struct trackDb *tdb, struct cart *cart, char *vis);
 // Set visibility in the cart. Handles all the complications necessary for subtracks.
 
 // More INLINES which depend on what the definition of "is" is
 INLINE boolean tdbIsBigBed(struct trackDb *tdb)
 // Local test to see if something is big bed.  Handles hub tracks unlike hIsBigBed.
 {
 // TODO: replace with table lookup  (same as bigBedFind ?)
 return (!startsWithWord("bigWig", tdb->type) && startsWith("big", tdb->type));
 }
 
 INLINE boolean tdbIsBigWig(struct trackDb *tdb)
 // Local test to see if something is big bed.  Handles hub tracks unlike hIsBigBed.
 {
 return startsWithWord("bigWig", tdb->type) || startsWithWord("mathWig", tdb->type);
 }
 
 INLINE boolean tdbIsLongTabix(struct trackDb *tdb)
 // Return TRUE if tdb corresponds to a long tabix file.
 {
 return startsWithWord("longTabix", tdb->type);
 }
 
 INLINE boolean tdbIsBam(struct trackDb *tdb)
 // Return TRUE if tdb corresponds to a BAM file.
 {
 return startsWithWord("bam", tdb->type);
 }
 
 INLINE boolean tdbIsVcf(struct trackDb *tdb)
 // Return TRUE if tdb corresponds to a VCF file.
 {
 return startsWithWord("vcfTabix", tdb->type) || startsWithWord("vcf", tdb->type);
 }
 
 INLINE boolean tdbIsHic(struct trackDb *tdb)
 // Return TRUE if tdb corresponds to a HIC file.
 {
 return startsWithWord("hic", tdb->type);
 }
 
 INLINE boolean tdbIsBedGraph(struct trackDb *tdb)
 // Return TRUE if tdb corresponds to a bedGraph track.
 {
 return startsWithWord("bedGraph", tdb->type);
 }
 
 boolean trackDbSettingBlocksConfiguration(struct trackDb *tdb, boolean onlyAjax);
 // Configuration dialogs may be explicitly blocked in tracDb settings
 
 struct slPair *trackDbMetaPairs(struct trackDb *tdb);
 /* Read in metadata given a trackDb entry.  This routine understands the three ways
  * that metadata can be represented in a trackDb stanza: "metadata" lines per stanza,
  * or a  tab-separated or tagStorm file with a foreign key specified by the "meta" tag.
  */
 
 char *trackDbViewSetting(struct trackDb *tdb, char *name);
 /* Return view setting from tdb, but *not* any of it's parents. */
 
 struct trackDb *lmCloneTdb(struct lm *lm, struct trackDb *tdb, struct trackDb *parent, struct hash *superHash);
 /* clone a single tdb structure.  Will clone its children if it has any */
 
 struct trackDb *lmCloneTdbList(struct lm *lm, struct trackDb *list, struct trackDb *parent, struct hash *superHash);
 /* clone a list of tdb structures. */
 
 struct trackDb *lmCloneSuper(struct lm *lm, struct trackDb *tdb, struct hash *superHash);
 /* clone a super track tdb structure. */
 
 void trackDbHubCloneTdbListToSharedMem(char *trackDbUrl, struct trackDb *list, unsigned long size, char *incFiles);
 /* For this hub, Allocate shared memory and clone trackDb list into it. incFiles has a list of include files that may be null. */
 
 void trackDbCloneTdbListToSharedMem(char *db, char *tdbPathString, struct trackDb *list, unsigned long size);
 /* For this native db, allocate shared memory and clone trackDb list into it. */
 
 struct trackDb *trackDbCache(char *db, char *tdbPathString, time_t time);
 /* Check to see if this db and trackDb table has a cached trackDb. */
 
 struct trackDb *trackDbHubCache(char *trackDbUrl, time_t time);
 /* Check to see if this hub has a cached trackDb. */
 
 boolean trackDbCacheOn();
 /* Check to see if we're caching trackDb contents. */
 
 boolean trackSettingIsFile(char *setting);
 /* Returns TRUE if setting found in trackDb stanza is a file setting that
  * would benefit from directory $D substitution among other things - looks for
  * settings that ends in "Url" and a few others. */
 
 char *labelAsFiltered(char *label);
 /* add text to label to indicate filter is active */
 
 char *labelAsFilteredNumber(char *label, unsigned number);
 /* add text to label to indicate filter is active */
 
 int trackDbGetCartVersion();
 /* Get the highest cart version that a set of trackDb entries has specified. */
 #endif /* TRACKDB_H */