int
candidate_validate(clicon_handle h, char *candidate, char *running)
{
struct dbdiff df;
dbdep_dd_t *ddvec = NULL;
int nvec;
int retval = -1;
struct stat sb;
void *firsterr = NULL;
/* Sanity checks that databases exists. */
if (stat(running, &sb) < 0){
clicon_err(OE_DB, errno, "%s", running);
goto done;
}
if (stat(candidate, &sb) < 0){
clicon_err(OE_DB, errno, "%s", candidate);
goto done;
}
memset(&df, 0, sizeof(df));
/* Find the differences between the two databases and store it in df vector. */
if (db_diff(running, candidate,
__FUNCTION__,
clicon_dbspec_key(h),
&df
) < 0)
goto done;
/* 1. Get commit processing dbdiff vector (df): one entry per key that
changed. changes are registered as if they exist in the 1st(candidate)
or 2nd(running) dbs.
*/
if (dbdep_commitvec(h, &df, &nvec, &ddvec) < 0)
goto done;
/* 2. Call plugin pre-commit hooks */
if (plugin_begin_hooks(h, candidate) < 0)
goto done;
/* call generic cv_validate() on all new or changed keys. */
if (generic_validate(h, candidate, &df) < 0)
goto done;
/* user-defined callbacks */
if (validate_db(h, nvec, ddvec, candidate) < 0)
goto done;
/* Call plugin post-commit hooks */
if (plugin_complete_hooks(h, candidate) < 0)
goto done;
retval = 0;
done:
if (retval < 0) /* Call plugin fail-commit hooks */
plugin_abort_hooks(h, candidate);
if (ddvec)
free(ddvec);
unchunk_group(__FUNCTION__);
if (firsterr)
clicon_err_restore(firsterr);
return retval;
}
int
main(int argc, char **argv)
{
int i = 0;
int diff_state = 0;
struct bu_ptbl results;
struct db_i *dbip1 = DBI_NULL;
struct db_i *dbip2 = DBI_NULL;
/*struct bu_vls diff_log = BU_VLS_INIT_ZERO;*/
struct bn_tol *diff_tol;
BU_GET(diff_tol, struct bn_tol);
diff_tol->dist = BN_TOL_DIST;
BU_PTBL_INIT(&results);
if (argc != 3) {
bu_log("Error - please specify two .g files\n");
bu_exit(EXIT_FAILURE, NULL);
}
if (!bu_file_exists(argv[1], NULL)) {
bu_exit(1, "Cannot stat file %s\n", argv[1]);
}
if (!bu_file_exists(argv[2], NULL)) {
bu_exit(1, "Cannot stat file %s\n", argv[2]);
}
if ((dbip1 = db_open(argv[1], DB_OPEN_READONLY)) == DBI_NULL) {
bu_exit(1, "Cannot open geometry database file %s\n", argv[1]);
}
RT_CK_DBI(dbip1);
if (db_dirbuild(dbip1) < 0) {
db_close(dbip1);
bu_exit(1, "db_dirbuild failed on geometry database file %s\n", argv[1]);
}
/* Reset the material head so we don't get warnings when the global
* is overwritten. This will go away when material_head ceases to
* be a librt global.*/
rt_new_material_head(MATER_NULL);
if ((dbip2 = db_open(argv[2], DB_OPEN_READONLY)) == DBI_NULL) {
bu_exit(1, "Cannot open geometry database file %s\n", argv[2]);
}
RT_CK_DBI(dbip2);
if (db_dirbuild(dbip2) < 0) {
db_close(dbip1);
db_close(dbip2);
bu_exit(1, "db_dirbuild failed on geometry database file %s\n", argv[1]);
}
diff_state = db_diff(dbip1, dbip2, diff_tol, DB_COMPARE_ALL, &results);
if (diff_state == DIFF_UNCHANGED) {
bu_log("No differences found.\n");
} else {
print_diff_summary(&results);
}
for (i = 0; i < (int)BU_PTBL_LEN(&results); i++) {
struct diff_result *result = (struct diff_result *)BU_PTBL_GET(&results, i);
diff_free_result(result);
}
bu_ptbl_free(&results);
BU_PUT(diff_tol, struct bn_tol);
db_close(dbip1);
db_close(dbip2);
return 0;
}
/*
* candidate_commit
* Do a diff between candidate and running, and then call plugins to
* commit the changes.
* The code reverts changes if the commit fails. But if the revert
* fails, we just ignore the errors and proceed. Maybe we should
* do something more drastic?
* Arguments:
* running: The current database. The state of the router corresponds
* to these values. Also called db1.
* candidate: The candidate database. We are aiming to put the router in this
* state. Also called db2.
(_dp) [op, callback] (dpe_)
+---------------+ +---------------+
| dbdep_t |--> | dbdep_ent_t | [key, var]
+---------------+ +---------------+
^ Database dependency description
from dbdep_commit() |
+---------------+* |dd_dep
| dbdep_dd_t |-----+
+---------------+ |dd_dbdiff
(dd_) |
v
+---------------+ +---------------+
| dbdiff |---->| dbdiff_ent | [key1, key2, add/change/rm] (dfe_)
+---------------+ +---------------+
(df_) from dbdiff(), (dfe_)
*/
int
candidate_commit(clicon_handle h, char *candidate, char *running)
{
struct dbdiff df;
dbdep_t *dp;
struct dbdiff_ent *dfe;
dbdep_dd_t *ddvec = NULL;
dbdep_dd_t *dd;
int nvec;
int retval = -1;
int i, j;
int failed = 0;
struct stat sb;
void *firsterr = NULL;
/* Sanity checks that databases exists. */
if (stat(running, &sb) < 0){
clicon_err(OE_DB, errno, "%s", running);
goto done;
}
if (stat(candidate, &sb) < 0){
clicon_err(OE_DB, errno, "%s", candidate);
goto done;
}
memset(&df, 0, sizeof(df));
/* Find the differences between the two databases and store it in dd vector. */
if (db_diff(running, candidate,
__FUNCTION__,
clicon_dbspec_key(h),
&df
) < 0)
goto done;
/* 1. Get commit processing dbdiff vector: one entry per key that changed.
changes are registered as if they exist in the 1st(candidate) or
2nd(running) dbs.
*/
if (dbdep_commitvec(h, &df, &nvec, &ddvec) < 0)
goto done;
/* 2. Call plugin pre-commit hooks */
if (plugin_begin_hooks(h, candidate) < 0)
goto done;
/* call generic cv_validate() on all new or changed keys. */
if (generic_validate(h, candidate, &df) < 0)
goto done;
/* user-defined callbacks */
if (validate_db(h, nvec, ddvec, candidate) < 0)
goto done;
/* Call plugin post-commit hooks */
if (plugin_complete_hooks(h, candidate) < 0)
goto done;
/* Now follows commit rules in order.
* 4. For all keys that are in candidate, delete key (from running).
*/
for (i = nvec-1; i >= 0; i--){
dd = &ddvec[i];
dfe = dd->dd_dbdiff; /* key1/key2/op */
dp = dd->dd_dep; /* op, callback, arg */
if (dp->dp_type & TRANS_CB_COMMIT &&
dfe->dfe_op & DBDIFF_OP_FIRST &&
plugin_modify_key_value(h, running, /* db */
dfe->dfe_key1, /* key */
TRANS_CB_COMMIT, /* commit|validate */
LV_DELETE, /* operation */
dp /* callback(arg) */
) < 0){
firsterr = clicon_err_save(); /* save this error */
break;
}
}
/* 5. Failed deletion of running, add the key value back (from running) */
if (i >= 0){ /* failed */
for (j=i+1; j<nvec; j++){ /* revert in opposite order */
dd = &ddvec[j];
dfe = dd->dd_dbdiff; /* key1/key2/op */
dp = dd->dd_dep; /* op, callback, arg */
if (dp->dp_type & TRANS_CB_COMMIT &&
dfe->dfe_op & DBDIFF_OP_FIRST &&
plugin_modify_key_value(h, running, /* db */
dfe->dfe_key1, /* key */
TRANS_CB_COMMIT, /* commit|validate */
LV_SET, /* operation */
dp /* callback(arg) */
) < 0)
continue; /* ignore errors or signal major setback ? */
}
goto done;
}
/* 6. Set keys (from candidate) */
for (i=0; i < nvec; i++){
dd = &ddvec[i];
dfe = dd->dd_dbdiff; /* key1/key2/op */
dp = dd->dd_dep; /* op, callback, arg */
if (dp->dp_type & TRANS_CB_COMMIT &&
dfe->dfe_op & DBDIFF_OP_SECOND &&
plugin_modify_key_value(h, candidate, /* db */
dfe->dfe_key2, /* key */
TRANS_CB_COMMIT, /* commit|validate */
LV_SET, /* operation */
dp /* callback(arg) */
) < 0){
firsterr = clicon_err_save(); /* save this error */
failed++;
break;
}
}
if (!failed)
if (file_cp(candidate, running) < 0){
clicon_err(OE_UNIX, errno, "file_cp");
failed++;
}
/* 7. Failed setting keys in running, first remove the keys set */
if (failed){ /* failed */
for (j=i-1; j>=0; j--){ /* revert in opposite order */
dd = &ddvec[j];
dfe = dd->dd_dbdiff; /* key1/key2/op */
dp = dd->dd_dep; /* op, callback, arg */
if (dp->dp_type & TRANS_CB_COMMIT &&
dfe->dfe_op & DBDIFF_OP_SECOND &&
plugin_modify_key_value(h, candidate, /* db */
dfe->dfe_key2, /* key */
TRANS_CB_COMMIT, /* commit|validate */
LV_DELETE, /* operation */
dp /* callback(arg) */
) < 0)
continue; /* ignore errors or signal major setback ? */
}
/* 7. Set back original running values */
for (j=0; j < nvec; j++){ /* revert in opposite order */
dd = &ddvec[j];
dfe = dd->dd_dbdiff; /* key1/key2/op */
dp = dd->dd_dep; /* op, callback, arg */
if (dp->dp_type & TRANS_CB_COMMIT &&
dfe->dfe_op & DBDIFF_OP_FIRST &&
plugin_modify_key_value(h, running, /* db */
dfe->dfe_key1, /* key */
TRANS_CB_COMMIT, /* commit|validate */
LV_SET, /* operation */
dp /* callback(arg) */
) < 0)
continue; /* ignore errors or signal major setback ? */
}
goto done;
}
/* Copy running back to candidate in case end functions triggered
updates in running */
/* XXX: check for errors */
file_cp(running, candidate);
/* Call plugin post-commit hooks */
plugin_end_hooks(h, candidate);
retval = 0;
done:
if (retval < 0) /* Call plugin fail-commit hooks */
plugin_abort_hooks(h, candidate);
if (ddvec)
free(ddvec);
unchunk_group(__FUNCTION__);
if (firsterr)
clicon_err_restore(firsterr);
return retval;
}