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PQueue queue; /* Queue of check-ins to be tagged */
Stmt s; /* Query the children of :pid to which to propagate */
Stmt ins; /* INSERT INTO tagxref */
Stmt eventupdate; /* UPDATE event */
assert( tagType==0 || tagType==2 );
pqueue_init(&queue);
pqueue_insert(&queue, pid, 0.0, 0);
pqueue_insert2(&queue, pid, 0.0, 0);
/* Query for children of :pid to which to propagate the tag.
** Three returns: (1) rid of the child. (2) timestamp of child.
** (3) True to propagate or false to block.
*/
db_prepare(&s,
"SELECT cid, plink.mtime,"
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while( (pid = pqueue_extract(&queue, 0))!=0 ){
db_bind_int(&s, ":pid", pid);
while( db_step(&s)==SQLITE_ROW ){
int doit = db_column_int(&s, 2);
if( doit ){
int cid = db_column_int(&s, 0);
double mtime = db_column_double(&s, 1);
pqueue_insert(&queue, cid, mtime, 0);
pqueue_insert2(&queue, cid, mtime, 0);
db_bind_int(&ins, ":rid", cid);
db_step(&ins);
db_reset(&ins);
if( tagid==TAG_BGCOLOR ){
db_bind_int(&eventupdate, ":rid", cid);
db_step(&eventupdate);
db_reset(&eventupdate);
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