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Decided that a different approach needed to be taken for having

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timestamps that are fixed, since the timestamp update routine is
called from too many places, too many times.  Instead created a
new cell definition flag indicating a fixed timestamp, which can
be set by "cellname timestamp" for an individual cell, or with
"gds datestamp" for cells read from a GDS file.
This commit is contained in:
Tim Edwards
2022-01-22 11:18:32 -05:00
parent 3065d4cc4b
commit e1aedc6f41
6 changed files with 96 additions and 32 deletions
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database/DBtimestmp.c
+12 -4
View File
@@ -214,11 +214,18 @@ DBUpdateStamps(def)
extern time_t time();
DBFixMismatch();
timestamp = time((time_t *) 0);
if (def == NULL)
(void) DBCellSrDefs(CDGETNEWSTAMP, dbStampFunc, (ClientData) NULL);
else if (def->cd_flags & CDGETNEWSTAMP)
dbStampFunc(def);
{
if (def->cd_flags & CDFIXEDSTAMP)
def->cd_flags &= ~CDGETNEWSTAMP;
else
dbStampFunc(def);
}
}
int
@@ -234,11 +241,12 @@ dbStampFunc(cellDef)
if (cellDef->cd_timestamp == timestamp) return 0;
cellDef->cd_timestamp = timestamp;
if (!(cellDef->cd_flags & CDFIXEDSTAMP))
cellDef->cd_timestamp = timestamp;
cellDef->cd_flags &= ~CDGETNEWSTAMP;
/* printf("Writing new timestamp %d for %s.\n",
timestamp, cellDef->cd_name); */
// printf("Writing new timestamp %d for %s.\n", timestamp, cellDef->cd_name);
/* If a child's stamp has changed, then the stamps must change
* in all its parents too. When the hierarchical DRC becomes
database/database.h.in
+22 -16
View File
@@ -411,24 +411,30 @@ typedef struct celldef
* CDDEREFERENCE is a flag indicating that when loading or expanding
* children of a cell, the path should be ignored and the cell
* path should be searched for the location.
* CDFIXEDSTAMP is a flag indicating that the cell has a fixed
* timestamp that should not be modified. This should be used
* with caution as it messes with the usual timestamp tracking,
* but is useful for preparing libraries all cells of which have
* the same timestamp value.
*/
#define CDAVAILABLE 0x0001
#define CDMODIFIED 0x0002
#define CDNOTFOUND 0x0004
#define CDINTERNAL 0x0008
#define CDGETNEWSTAMP 0x0010
#define CDSTAMPSCHANGED 0x0020
#define CDBOXESCHANGED 0x0040
#define CDFIXEDBBOX 0x0080
#define CDNOEDIT 0x0100
#define CDPROCESSED 0x0200
#define CDFLATGDS 0x0400
#define CDFLATTENED 0x0800
#define CDPROCESSEDGDS 0x1000
#define CDVENDORGDS 0x2000
#define CDVISITED 0x4000
#define CDDEREFERENCE 0x8000
#define CDAVAILABLE 0x00001
#define CDMODIFIED 0x00002
#define CDNOTFOUND 0x00004
#define CDINTERNAL 0x00008
#define CDGETNEWSTAMP 0x00010
#define CDSTAMPSCHANGED 0x00020
#define CDBOXESCHANGED 0x00040
#define CDFIXEDBBOX 0x00080
#define CDNOEDIT 0x00100
#define CDPROCESSED 0x00200
#define CDFLATGDS 0x00400
#define CDFLATTENED 0x00800
#define CDPROCESSEDGDS 0x01000
#define CDVENDORGDS 0x02000
#define CDVISITED 0x04000
#define CDDEREFERENCE 0x08000
#define CDFIXEDSTAMP 0x10000
/*
* Description of an array.