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ovsdb-idlc.in
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ovsdb-idlc.in
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#! @PYTHON@
import getopt
import os
import re
import sys
import ovs.json
import ovs.db.error
import ovs.db.schema
argv0 = sys.argv[0]
def parseSchema(filename):
return ovs.db.schema.IdlSchema.from_json(ovs.json.from_file(filename))
def annotateSchema(schemaFile, annotationFile):
schemaJson = ovs.json.from_file(schemaFile)
execfile(annotationFile, globals(), {"s": schemaJson})
ovs.json.to_stream(schemaJson, sys.stdout)
sys.stdout.write('\n')
def constify(cType, const):
if (const
and cType.endswith('*') and
(cType == 'char **' or not cType.endswith('**'))):
return 'const %s' % cType
else:
return cType
def cMembers(prefix, tableName, columnName, column, const, refTable=True):
comment = ""
type = column.type
if type.is_smap():
comment = """
/* Sets the "%(c)s" column's value from the "%(t)s" table in 'row'
* to '%(c)s'.
*
* The caller retains ownership of '%(c)s' and everything in it. */""" \
% {'c': columnName,
't': tableName}
return (comment, [{'name': columnName,
'type': 'struct smap ',
'comment': ''}])
comment = """\n/* Sets the "%s" column from the "%s" table in """\
"""'row' to\n""" % (columnName, tableName)
if type.n_min == 1 and type.n_max == 1:
singleton = True
pointer = ''
else:
singleton = False
if type.is_optional_pointer():
pointer = ''
else:
pointer = '*'
if type.value:
keyName = "key_%s" % columnName
valueName = "value_%s" % columnName
key = {'name': keyName,
'type': constify(type.key.toCType(prefix, refTable) + pointer, const),
'comment': ''}
value = {'name': valueName,
'type': constify(type.value.toCType(prefix, refTable) + pointer, const),
'comment': ''}
if singleton:
comment += " * the map with key '%s' and value '%s'\n *" \
% (keyName, valueName)
else:
comment += " * the map with keys '%s' and values '%s'\n *" \
% (keyName, valueName)
members = [key, value]
else:
m = {'name': columnName,
'type': constify(type.key.toCType(prefix, refTable) + pointer, const),
'comment': type.cDeclComment()}
if singleton:
comment += " * '%s'" % columnName
else:
comment += " * the '%s' set" % columnName
members = [m]
if not singleton and not type.is_optional_pointer():
sizeName = "n_%s" % columnName
comment += " with '%s' entries" % sizeName
members.append({'name': sizeName,
'type': 'size_t ',
'comment': ''})
comment += ".\n"
if type.is_optional() and not type.is_optional_pointer():
comment += """ *
* '%s' may be 0 or 1; if it is 0, then '%s'
* may be NULL.\n""" \
% ("n_%s" % columnName, columnName)
if type.is_optional_pointer():
comment += """ *
* If "%s" is null, the column will be the empty set,
* otherwise it will contain the specified value.\n""" % columnName
if type.constraintsToEnglish():
comment += """ *
* Argument constraints: %s\n""" \
% type.constraintsToEnglish(lambda s : '"%s"' % s)
comment += " *\n * The caller retains ownership of the arguments. */"
return (comment, members)
def sorted_columns(table):
return sorted(table.columns.items())
def printCIDLHeader(schemaFile):
schema = parseSchema(schemaFile)
prefix = schema.idlPrefix
print '''\
/* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
#ifndef %(prefix)sIDL_HEADER
#define %(prefix)sIDL_HEADER 1
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "ovsdb-data.h"
#include "ovsdb-idl-provider.h"
#include "smap.h"
#include "uuid.h"''' % {'prefix': prefix.upper()}
for tableName, table in sorted(schema.tables.iteritems()):
structName = "%s%s" % (prefix, tableName.lower())
print " "
print "/* %s table. */" % tableName
print "struct %s {" % structName
print "\tstruct ovsdb_idl_row header_;"
for columnName, column in sorted_columns(table):
print "\n\t/* %s column. */" % columnName
comment, members = cMembers(prefix, tableName,
columnName, column, False)
for member in members:
print "\t%(type)s%(name)s;%(comment)s" % member
print "};"
# Column indexes.
printEnum("%s_column_id" % structName.lower(), ["%s_COL_%s" % (structName.upper(), columnName.upper())
for columnName, column in sorted_columns(table)]
+ ["%s_N_COLUMNS" % structName.upper()])
print
for columnName in table.columns:
print "#define %(s)s_col_%(c)s (%(s)s_columns[%(S)s_COL_%(C)s])" % {
's': structName,
'S': structName.upper(),
'c': columnName,
'C': columnName.upper()}
print "\nextern struct ovsdb_idl_column %s_columns[%s_N_COLUMNS];" % (structName, structName.upper())
print '''
const struct %(s)s *%(s)s_get_for_uuid(const struct ovsdb_idl *, const struct uuid *);
const struct %(s)s *%(s)s_first(const struct ovsdb_idl *);
const struct %(s)s *%(s)s_next(const struct %(s)s *);
#define %(S)s_FOR_EACH(ROW, IDL) \\
for ((ROW) = %(s)s_first(IDL); \\
(ROW); \\
(ROW) = %(s)s_next(ROW))
#define %(S)s_FOR_EACH_SAFE(ROW, NEXT, IDL) \\
for ((ROW) = %(s)s_first(IDL); \\
(ROW) ? ((NEXT) = %(s)s_next(ROW), 1) : 0; \\
(ROW) = (NEXT))
unsigned int %(s)s_get_seqno(const struct ovsdb_idl *);
unsigned int %(s)s_row_get_seqno(const struct %(s)s *row, enum ovsdb_idl_change change);
const struct %(s)s *%(s)s_track_get_first(const struct ovsdb_idl *);
const struct %(s)s *%(s)s_track_get_next(const struct %(s)s *);
#define %(S)s_FOR_EACH_TRACKED(ROW, IDL) \\
for ((ROW) = %(s)s_track_get_first(IDL); \\
(ROW); \\
(ROW) = %(s)s_track_get_next(ROW))
/* Returns true if 'row' was inserted since the last change tracking reset. */
static inline bool %(s)s_is_new(const struct %(s)s *row)
{
return %(s)s_row_get_seqno(row, OVSDB_IDL_CHANGE_MODIFY) == 0;
}
/* Returns true if 'row' was deleted since the last change tracking reset. */
static inline bool %(s)s_is_deleted(const struct %(s)s *row)
{
return %(s)s_row_get_seqno(row, OVSDB_IDL_CHANGE_DELETE) > 0;
}
void %(s)s_init(struct %(s)s *);
void %(s)s_delete(const struct %(s)s *);
struct %(s)s *%(s)s_insert(struct ovsdb_idl_txn *);
bool %(s)s_is_updated(const struct %(s)s *, enum %(s)s_column_id);
''' % {'s': structName, 'S': structName.upper()}
for columnName, column in sorted_columns(table):
print 'void %(s)s_verify_%(c)s(const struct %(s)s *);' % {'s': structName, 'c': columnName}
print
for columnName, column in sorted_columns(table):
if column.type.value:
valueParam = ', enum ovsdb_atomic_type value_type'
else:
valueParam = ''
print 'const struct ovsdb_datum *%(s)s_get_%(c)s(const struct %(s)s *, enum ovsdb_atomic_type key_type%(v)s);' % {
's': structName, 'c': columnName, 'v': valueParam}
print
for columnName, column in sorted_columns(table):
print 'void %(s)s_set_%(c)s(const struct %(s)s *,' % {'s': structName, 'c': columnName},
if column.type.is_smap():
args = ['const struct smap *']
else:
comment, members = cMembers(prefix, tableName, columnName,
column, True)
args = ['%(type)s%(name)s' % member for member in members]
print '%s);' % ', '.join(args)
print
for columnName, column in sorted_columns(table):
if column.type.is_map():
print 'void %(s)s_update_%(c)s_setkey(const struct %(s)s *, ' % {'s': structName, 'c': columnName},
print '%(coltype)s, %(valtype)s);' % {'coltype':column.type.key.to_const_c_type(prefix), 'valtype':column.type.value.to_const_c_type(prefix)}
print 'void %(s)s_update_%(c)s_delkey(const struct %(s)s *, ' % {'s': structName, 'c': columnName},
print '%(coltype)s);' % {'coltype':column.type.key.to_const_c_type(prefix)}
if column.type.is_set():
print 'void %(s)s_update_%(c)s_addvalue(const struct %(s)s *, ' % {'s': structName, 'c': columnName},
print '%(valtype)s);' % {'valtype':column.type.key.to_const_c_type(prefix)}
print 'void %(s)s_update_%(c)s_delvalue(const struct %(s)s *, ' % {'s': structName, 'c': columnName},
print '%(valtype)s);' % {'valtype':column.type.key.to_const_c_type(prefix)}
print 'void %(s)s_add_clause_%(c)s(struct ovsdb_idl *idl, enum ovsdb_function function,' % {'s': structName, 'c': columnName},
if column.type.is_smap():
args = ['const struct smap *']
else:
comment, members = cMembers(prefix, tableName, columnName,
column, True, refTable=False)
args = ['%(type)s%(name)s' % member for member in members]
print '%s);' % ', '.join(args)
print 'void %s_add_clause_true(struct ovsdb_idl *idl);' % structName
print 'void %s_add_clause_false(struct ovsdb_idl *idl);' % structName
print
for columnName, column in sorted_columns(table):
print 'void %(s)s_remove_clause_%(c)s(struct ovsdb_idl *idl, enum ovsdb_function function,' % {'s': structName, 'c': columnName},
if column.type.is_smap():
args = ['const struct smap *']
else:
comment, members = cMembers(prefix, tableName, columnName,
column, True, refTable=False)
args = ['%(type)s%(name)s' % member for member in members]
print '%s);' % ', '.join(args)
print 'void %s_remove_clause_true(struct ovsdb_idl *idl);' % structName
print 'void %s_remove_clause_false(struct ovsdb_idl *idl);' % structName
print
# Table indexes.
printEnum("%stable_id" % prefix.lower(), ["%sTABLE_%s" % (prefix.upper(), tableName.upper()) for tableName in sorted(schema.tables)] + ["%sN_TABLES" % prefix.upper()])
print
for tableName in schema.tables:
print "#define %(p)stable_%(t)s (%(p)stable_classes[%(P)sTABLE_%(T)s])" % {
'p': prefix,
'P': prefix.upper(),
't': tableName.lower(),
'T': tableName.upper()}
print "\nextern struct ovsdb_idl_table_class %stable_classes[%sN_TABLES];" % (prefix, prefix.upper())
print "\nextern struct ovsdb_idl_class %sidl_class;" % prefix
print "\nconst char * %sget_db_version(void);" % prefix
print "\n#endif /* %(prefix)sIDL_HEADER */" % {'prefix': prefix.upper()}
def printEnum(type, members):
if len(members) == 0:
return
print "\nenum %s {" % type
for member in members[:-1]:
print " %s," % member
print " %s" % members[-1]
print "};"
def printCIDLSource(schemaFile):
schema = parseSchema(schemaFile)
prefix = schema.idlPrefix
print '''\
/* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
#include <config.h>
#include %s
#include <limits.h>
#include "ovs-thread.h"
#include "ovsdb-data.h"
#include "ovsdb-error.h"
#include "util.h"
''' % schema.idlHeader
# Cast functions.
for tableName, table in sorted(schema.tables.iteritems()):
structName = "%s%s" % (prefix, tableName.lower())
print '''
static struct %(s)s *
%(s)s_cast(const struct ovsdb_idl_row *row)
{
return row ? CONTAINER_OF(row, struct %(s)s, header_) : NULL;
}\
''' % {'s': structName}
for tableName, table in sorted(schema.tables.iteritems()):
structName = "%s%s" % (prefix, tableName.lower())
print " "
print "/* %s table. */" % (tableName)
# Parse functions.
for columnName, column in sorted_columns(table):
print '''
static void
%(s)s_parse_%(c)s(struct ovsdb_idl_row *row_, const struct ovsdb_datum *datum)
{
struct %(s)s *row = %(s)s_cast(row_);''' % {'s': structName,
'c': columnName}
type = column.type
if type.value:
keyVar = "row->key_%s" % columnName
valueVar = "row->value_%s" % columnName
else:
keyVar = "row->%s" % columnName
valueVar = None
if type.is_smap():
print " smap_init(&row->%s);" % columnName
print " for (size_t i = 0; i < datum->n; i++) {"
print " smap_add(&row->%s," % columnName
print " datum->keys[i].string,"
print " datum->values[i].string);"
print " }"
elif (type.n_min == 1 and type.n_max == 1) or type.is_optional_pointer():
print
print " if (datum->n >= 1) {"
if not type.key.ref_table:
print " %s = datum->keys[0].%s;" % (keyVar, type.key.type.to_string())
else:
print " %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_%s, &datum->keys[0].uuid));" % (keyVar, prefix, type.key.ref_table.name.lower(), prefix, type.key.ref_table.name.lower())
if valueVar:
if not type.value.ref_table:
print " %s = datum->values[0].%s;" % (valueVar, type.value.type.to_string())
else:
print " %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_%s, &datum->values[0].uuid));" % (valueVar, prefix, type.value.ref_table.name.lower(), prefix, type.value.ref_table.name.lower())
print " } else {"
print " %s" % type.key.initCDefault(keyVar, type.n_min == 0)
if valueVar:
print " %s" % type.value.initCDefault(valueVar, type.n_min == 0)
print " }"
else:
if type.n_max != sys.maxint:
print " size_t n = MIN(%d, datum->n);" % type.n_max
nMax = "n"
else:
nMax = "datum->n"
print " %s = NULL;" % keyVar
if valueVar:
print " %s = NULL;" % valueVar
print " row->n_%s = 0;" % columnName
print " for (size_t i = 0; i < %s; i++) {" % nMax
if type.key.ref_table:
print """\
struct %s%s *keyRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_%s, &datum->keys[i].uuid));
if (!keyRow) {
continue;
}\
""" % (prefix, type.key.ref_table.name.lower(), prefix, type.key.ref_table.name.lower(), prefix, type.key.ref_table.name.lower())
keySrc = "keyRow"
else:
keySrc = "datum->keys[i].%s" % type.key.type.to_string()
if type.value and type.value.ref_table:
print """\
struct %s%s *valueRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_%s, &datum->values[i].uuid));
if (!valueRow) {
continue;
}\
""" % (prefix, type.value.ref_table.name.lower(), prefix, type.value.ref_table.name.lower(), prefix, type.value.ref_table.name.lower())
valueSrc = "valueRow"
elif valueVar:
valueSrc = "datum->values[i].%s" % type.value.type.to_string()
print " if (!row->n_%s) {" % (columnName)
print " %s = xmalloc(%s * sizeof *%s);" % (
keyVar, nMax, keyVar)
if valueVar:
print " %s = xmalloc(%s * sizeof *%s);" % (
valueVar, nMax, valueVar)
print " }"
print " %s[row->n_%s] = %s;" % (keyVar, columnName, keySrc)
if valueVar:
print " %s[row->n_%s] = %s;" % (valueVar, columnName, valueSrc)
print " row->n_%s++;" % columnName
print " }"
print "}"
# Unparse functions.
for columnName, column in sorted_columns(table):
type = column.type
if type.is_smap() or (type.n_min != 1 or type.n_max != 1) and not type.is_optional_pointer():
print '''
static void
%(s)s_unparse_%(c)s(struct ovsdb_idl_row *row_)
{
struct %(s)s *row = %(s)s_cast(row_);''' % {'s': structName,
'c': columnName}
if type.is_smap():
print " smap_destroy(&row->%s);" % columnName
else:
if type.value:
keyVar = "row->key_%s" % columnName
valueVar = "row->value_%s" % columnName
else:
keyVar = "row->%s" % columnName
valueVar = None
print " free(%s);" % keyVar
if valueVar:
print " free(%s);" % valueVar
print '}'
else:
print '''
static void
%(s)s_unparse_%(c)s(struct ovsdb_idl_row *row OVS_UNUSED)
{
/* Nothing to do. */
}''' % {'s': structName, 'c': columnName}
# Generic Row Initialization function.
print """
static void
%(s)s_init__(struct ovsdb_idl_row *row)
{
%(s)s_init(%(s)s_cast(row));
}""" % {'s': structName}
# Row Initialization function.
print """
/* Clears the contents of 'row' in table "%(t)s". */
void
%(s)s_init(struct %(s)s *row)
{
memset(row, 0, sizeof *row); """ % {'s': structName, 't': tableName}
for columnName, column in sorted_columns(table):
if column.type.is_smap():
print " smap_init(&row->%s);" % columnName
print "}"
# First, next functions.
print '''
/* Searches table "%(t)s" in 'idl' for a row with UUID 'uuid'. Returns
* a pointer to the row if there is one, otherwise a null pointer. */
const struct %(s)s *
%(s)s_get_for_uuid(const struct ovsdb_idl *idl, const struct uuid *uuid)
{
return %(s)s_cast(ovsdb_idl_get_row_for_uuid(idl, &%(p)stable_%(tl)s, uuid));
}
/* Returns a row in table "%(t)s" in 'idl', or a null pointer if that
* table is empty.
*
* Database tables are internally maintained as hash tables, so adding or
* removing rows while traversing the same table can cause some rows to be
* visited twice or not at apply. */
const struct %(s)s *
%(s)s_first(const struct ovsdb_idl *idl)
{
return %(s)s_cast(ovsdb_idl_first_row(idl, &%(p)stable_%(tl)s));
}
/* Returns a row following 'row' within its table, or a null pointer if 'row'
* is the last row in its table. */
const struct %(s)s *
%(s)s_next(const struct %(s)s *row)
{
return %(s)s_cast(ovsdb_idl_next_row(&row->header_));
}
unsigned int %(s)s_get_seqno(const struct ovsdb_idl *idl)
{
return ovsdb_idl_table_get_seqno(idl, &%(p)stable_%(tl)s);
}
unsigned int %(s)s_row_get_seqno(const struct %(s)s *row, enum ovsdb_idl_change change)
{
return ovsdb_idl_row_get_seqno(&row->header_, change);
}
const struct %(s)s *
%(s)s_track_get_first(const struct ovsdb_idl *idl)
{
return %(s)s_cast(ovsdb_idl_track_get_first(idl, &%(p)stable_%(tl)s));
}
const struct %(s)s
*%(s)s_track_get_next(const struct %(s)s *row)
{
return %(s)s_cast(ovsdb_idl_track_get_next(&row->header_));
}''' % {'s': structName,
'p': prefix,
'P': prefix.upper(),
't': tableName,
'tl': tableName.lower(),
'T': tableName.upper()}
print '''
/* Deletes 'row' from table "%(t)s". 'row' may be freed, so it must not be
* accessed afterward.
*
* The caller must have started a transaction with ovsdb_idl_txn_create(). */
void
%(s)s_delete(const struct %(s)s *row)
{
ovsdb_idl_txn_delete(&row->header_);
}
/* Inserts and returns a new row in the table "%(t)s" in the database
* with open transaction 'txn'.
*
* The new row is assigned a randomly generated provisional UUID.
* ovsdb-server will assign a different UUID when 'txn' is committed,
* but the IDL will replace any uses of the provisional UUID in the
* data to be to be committed by the UUID assigned by ovsdb-server. */
struct %(s)s *
%(s)s_insert(struct ovsdb_idl_txn *txn)
{
return %(s)s_cast(ovsdb_idl_txn_insert(txn, &%(p)stable_%(tl)s, NULL));
}
bool
%(s)s_is_updated(const struct %(s)s *row, enum %(s)s_column_id column)
{
return ovsdb_idl_track_is_updated(&row->header_, &%(s)s_columns[column]);
}''' % {'s': structName,
'p': prefix,
'P': prefix.upper(),
't': tableName,
'tl': tableName.lower(),
'T': tableName.upper()}
# Verify functions.
for columnName, column in sorted_columns(table):
print '''
/* Causes the original contents of column "%(c)s" in 'row' to be
* verified as a prerequisite to completing the transaction. That is, if
* "%(c)s" in 'row' changed (or if 'row' was deleted) between the
* time that the IDL originally read its contents and the time that the
* transaction aborts and ovsdb_idl_txn_commit() returns TXN_TRY_AGAIN.
*
* The intention is that, to ensure that no transaction commits based on dirty
* reads, an application should call this function any time "%(c)s" is
* read as part of a read-modify-write operation.
*
* In some cases this function reduces to a no-op, because the current value
* of "%(c)s" is already known:
*
* - If 'row' is a row created by the current transaction (returned by
* %(s)s_insert()).
*
* - If "%(c)s" has already been modified (with
* %(s)s_set_%(c)s()) within the current transaction.
*
* Because of the latter property, always call this function *before*
* %(s)s_set_%(c)s() for a given read-modify-write.
*
* The caller must have started a transaction with ovsdb_idl_txn_create(). */
void
%(s)s_verify_%(c)s(const struct %(s)s *row)
{
ovsdb_idl_txn_verify(&row->header_, &%(s)s_col_%(c)s);
}''' % {'s': structName,
'S': structName.upper(),
'c': columnName,
'C': columnName.upper()}
# Get functions.
for columnName, column in sorted_columns(table):
if column.type.value:
valueParam = ',\n\tenum ovsdb_atomic_type value_type OVS_UNUSED'
valueType = '\n ovs_assert(value_type == %s);' % column.type.value.toAtomicType()
valueComment = "\n * 'value_type' must be %s." % column.type.value.toAtomicType()
else:
valueParam = ''
valueType = ''
valueComment = ''
print """
/* Returns the "%(c)s" column's value from the "%(t)s" table in 'row'
* as a struct ovsdb_datum. This is useful occasionally: for example,
* ovsdb_datum_find_key() is an easier and more efficient way to search
* for a given key than implementing the same operation on the "cooked"
* form in 'row'.
*
* 'key_type' must be %(kt)s.%(vc)s
* (This helps to avoid silent bugs if someone changes %(c)s's
* type without updating the caller.)
*
* The caller must not modify or free the returned value.
*
* Various kinds of changes can invalidate the returned value: modifying
* 'column' within 'row', deleting 'row', or completing an ongoing transaction.
* If the returned value is needed for a long time, it is best to make a copy
* of it with ovsdb_datum_clone().
*
* This function is rarely useful, since it is easier to access the value
* directly through the "%(c)s" member in %(s)s. */
const struct ovsdb_datum *
%(s)s_get_%(c)s(const struct %(s)s *row,
\tenum ovsdb_atomic_type key_type OVS_UNUSED%(v)s)
{
ovs_assert(key_type == %(kt)s);%(vt)s
return ovsdb_idl_read(&row->header_, &%(s)s_col_%(c)s);
}""" % {'t': tableName, 's': structName, 'c': columnName,
'kt': column.type.key.toAtomicType(),
'v': valueParam, 'vt': valueType, 'vc': valueComment}
# Set functions.
for columnName, column in sorted_columns(table):
type = column.type
comment, members = cMembers(prefix, tableName, columnName,
column, True)
if type.is_smap():
print comment
print """void
%(s)s_set_%(c)s(const struct %(s)s *row, const struct smap *%(c)s)
{
struct ovsdb_datum datum;
if (%(c)s) {
ovsdb_datum_from_smap(&datum, %(c)s);
} else {
ovsdb_datum_init_empty(&datum);
}
ovsdb_idl_txn_write(&row->header_,
&%(s)s_col_%(c)s,
&datum);
}
""" % {'t': tableName,
's': structName,
'S': structName.upper(),
'c': columnName,
'C': columnName.upper()}
continue
keyVar = members[0]['name']
nVar = None
valueVar = None
if type.value:
valueVar = members[1]['name']
if len(members) > 2:
nVar = members[2]['name']
else:
if len(members) > 1:
nVar = members[1]['name']
print comment
print """\
void
%(s)s_set_%(c)s(const struct %(s)s *row, %(args)s)
{
struct ovsdb_datum datum;""" % {'s': structName,
'c': columnName,
'args': ', '.join(['%(type)s%(name)s'
% m for m in members])}
if type.n_min == 1 and type.n_max == 1:
print " union ovsdb_atom key;"
if type.value:
print " union ovsdb_atom value;"
print
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar)
if type.value:
print " datum.values = &value;"
print " "+ type.value.assign_c_value_casting_away_const("value.%s" % type.value.type.to_string(), valueVar)
else:
print " datum.values = NULL;"
txn_write_func = "ovsdb_idl_txn_write_clone"
elif type.is_optional_pointer():
print " union ovsdb_atom key;"
print
print " if (%s) {" % keyVar
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar)
print " } else {"
print " datum.n = 0;"
print " datum.keys = NULL;"
print " }"
print " datum.values = NULL;"
txn_write_func = "ovsdb_idl_txn_write_clone"
elif type.n_max == 1:
print " union ovsdb_atom key;"
print
print " if (%s) {" % nVar
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), "*" + keyVar)
print " } else {"
print " datum.n = 0;"
print " datum.keys = NULL;"
print " }"
print " datum.values = NULL;"
txn_write_func = "ovsdb_idl_txn_write_clone"
else:
print
print " datum.n = %s;" % nVar
print " datum.keys = %s ? xmalloc(%s * sizeof *datum.keys) : NULL;" % (nVar, nVar)
if type.value:
print " datum.values = xmalloc(%s * sizeof *datum.values);" % nVar
else:
print " datum.values = NULL;"
print " for (size_t i = 0; i < %s; i++) {" % nVar
print " " + type.key.copyCValue("datum.keys[i].%s" % type.key.type.to_string(), "%s[i]" % keyVar)
if type.value:
print " " + type.value.copyCValue("datum.values[i].%s" % type.value.type.to_string(), "%s[i]" % valueVar)
print " }"
if type.value:
valueType = type.value.toAtomicType()
else:
valueType = "OVSDB_TYPE_VOID"
txn_write_func = "ovsdb_idl_txn_write"
print " %(f)s(&row->header_, &%(s)s_col_%(c)s, &datum);" \
% {'f': txn_write_func,
's': structName,
'S': structName.upper(),
'c': columnName}
print "}"
# Update/Delete of partial map column functions
for columnName, column in sorted_columns(table):
type = column.type
if type.is_map():
print '''
/* Sets an element of the "%(c)s" map column from the "%(t)s" table in 'row'
* to 'new_value' given the key value 'new_key'.
*
*/
void
%(s)s_update_%(c)s_setkey(const struct %(s)s *row, %(coltype)snew_key, %(valtype)snew_value)
{
struct ovsdb_datum *datum;
datum = xmalloc(sizeof *datum);
datum->n = 1;
datum->keys = xmalloc(datum->n * sizeof *datum->keys);
datum->values = xmalloc(datum->n * sizeof *datum->values);
''' % {'s': structName, 'c': columnName,'coltype':column.type.key.to_const_c_type(prefix),
'valtype':column.type.value.to_const_c_type(prefix), 'S': structName.upper(),
'C': columnName.upper(), 't': tableName}
print " "+ type.key.copyCValue("datum->keys[0].%s" % type.key.type.to_string(), "new_key")
print " "+ type.value.copyCValue("datum->values[0].%s" % type.value.type.to_string(), "new_value")
print '''
ovsdb_idl_txn_write_partial_map(&row->header_,
&%(s)s_col_%(c)s,
datum);
}''' % {'s': structName, 'c': columnName,'coltype':column.type.key.toCType(prefix),
'valtype':column.type.value.to_const_c_type(prefix), 'S': structName.upper()}
print '''
/* Deletes an element of the "%(c)s" map column from the "%(t)s" table in 'row'
* given the key value 'delete_key'.
*
*/
void
%(s)s_update_%(c)s_delkey(const struct %(s)s *row, %(coltype)sdelete_key)
{
struct ovsdb_datum *datum;
datum = xmalloc(sizeof *datum);
datum->n = 1;
datum->keys = xmalloc(datum->n * sizeof *datum->keys);
datum->values = NULL;
''' % {'s': structName, 'c': columnName,'coltype':column.type.key.to_const_c_type(prefix),
'valtype':column.type.value.to_const_c_type(prefix), 'S': structName.upper(),
'C': columnName.upper(), 't': tableName}
print " "+ type.key.copyCValue("datum->keys[0].%s" % type.key.type.to_string(), "delete_key")
print '''
ovsdb_idl_txn_delete_partial_map(&row->header_,
&%(s)s_col_%(c)s,
datum);
}''' % {'s': structName, 'c': columnName,'coltype':column.type.key.toCType(prefix),
'valtype':column.type.value.to_const_c_type(prefix), 'S': structName.upper()}
# End Update/Delete of partial maps
# Update/Delete of partial set column functions
if type.is_set():
print '''
/* Adds the value 'new_value' to the "%(c)s" set column from the "%(t)s" table
* in 'row'.
*
*/
void
%(s)s_update_%(c)s_addvalue(const struct %(s)s *row, %(valtype)snew_value)
{
struct ovsdb_datum *datum;
datum = xmalloc(sizeof *datum);
datum->n = 1;
datum->keys = xmalloc(datum->n * sizeof *datum->values);
datum->values = NULL;
''' % {'s': structName, 'c': columnName,
'valtype':column.type.key.to_const_c_type(prefix), 't': tableName}
print " "+ type.key.copyCValue("datum->keys[0].%s" % type.key.type.to_string(), "new_value")
print '''
ovsdb_idl_txn_write_partial_set(&row->header_,
&%(s)s_col_%(c)s,
datum);
}''' % {'s': structName, 'c': columnName,'coltype':column.type.key.toCType(prefix),
'valtype':column.type.key.to_const_c_type(prefix), 'S': structName.upper()}
print '''
/* Deletes the value 'delete_value' from the "%(c)s" set column from the
* "%(t)s" table in 'row'.
*
*/
void
%(s)s_update_%(c)s_delvalue(const struct %(s)s *row, %(valtype)sdelete_value)
{
struct ovsdb_datum *datum;
datum = xmalloc(sizeof *datum);
datum->n = 1;
datum->keys = xmalloc(datum->n * sizeof *datum->values);
datum->values = NULL;
''' % {'s': structName, 'c': columnName,'coltype':column.type.key.to_const_c_type(prefix),
'valtype':column.type.key.to_const_c_type(prefix), 'S': structName.upper(),
'C': columnName.upper(), 't': tableName}
print " "+ type.key.copyCValue("datum->keys[0].%s" % type.key.type.to_string(), "delete_value")
print '''
ovsdb_idl_txn_delete_partial_set(&row->header_,
&%(s)s_col_%(c)s,
datum);
}''' % {'s': structName, 'c': columnName,'coltype':column.type.key.toCType(prefix),
'valtype':column.type.key.to_const_c_type(prefix), 'S': structName.upper()}
# End Update/Delete of partial set
# Add clause functions.
for columnName, column in sorted_columns(table):
type = column.type
comment, members = cMembers(prefix, tableName, columnName,
column, True, refTable=False)
if type.is_smap():
print comment
print """void
%(s)s_add_clause_%(c)s(struct ovsdb_idl *idl, enum ovsdb_function function, const struct smap *%(c)s)
{
struct ovsdb_datum datum;
if (%(c)s) {
ovsdb_datum_from_smap(&datum, %(c)s);
} else {
ovsdb_datum_init_empty(&datum);
}
ovsdb_idl_condition_add_clause(idl,
&%(p)stable_%(tl)s,
function,
&%(s)s_col_%(c)s,
&datum);
ovsdb_datum_destroy(&datum, &%(s)s_col_%(c)s.type);
}
""" % {'t': tableName,
'tl': tableName.lower(),
'T': tableName.upper(),
'p': prefix,
'P': prefix.upper(),
's': structName,
'S': structName.upper(),
'c': columnName}
continue
keyVar = members[0]['name']
nVar = None
valueVar = None
if type.value:
valueVar = members[1]['name']
if len(members) > 2:
nVar = members[2]['name']
else:
if len(members) > 1:
nVar = members[1]['name']
print comment
print 'void'
print '%(s)s_add_clause_%(c)s(struct ovsdb_idl *idl, enum ovsdb_function function, %(args)s)' % \
{'s': structName, 'c': columnName,
'args': ', '.join(['%(type)s%(name)s' % m for m in members])}
print "{"
print " struct ovsdb_datum datum;"
free = []
if type.n_min == 1 and type.n_max == 1:
print " union ovsdb_atom key;"
if type.value:
print " union ovsdb_atom value;"
print
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar, refTable=False)
if type.value:
print " datum.values = &value;"
print " "+ type.value.assign_c_value_casting_away_const("value.%s" % type.value.type.to_string(), valueVar, refTable=False)
else:
print " datum.values = NULL;"
elif type.is_optional_pointer():
print " union ovsdb_atom key;"
print
print " if (%s) {" % keyVar
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar, refTable=False)
print " } else {"
print " datum.n = 0;"
print " datum.keys = NULL;"
print " }"
print " datum.values = NULL;"
elif type.n_max == 1:
print " union ovsdb_atom key;"
print
print " if (%s) {" % nVar
print " datum.n = 1;"
print " datum.keys = &key;"
print " " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), "*" + keyVar, refTable=False)
print " } else {"
print " datum.n = 0;"
print " datum.keys = NULL;"
print " }"
print " datum.values = NULL;"
else:
print " datum.n = %s;" % nVar
print " datum.keys = %s ? xmalloc(%s * sizeof *datum.keys) : NULL;" % (nVar, nVar)
free += ['datum.keys']
if type.value:
print " datum.values = xmalloc(%s * sizeof *datum.values);" % nVar
free += ['datum.values']
else:
print " datum.values = NULL;"
print " for (size_t i = 0; i < %s; i++) {" % nVar
print " " + type.key.assign_c_value_casting_away_const("datum.keys[i].%s" % type.key.type.to_string(), "%s[i]" % keyVar, refTable=False)
if type.value:
print " " + type.value.assign_c_value_casting_away_const("datum.values[i].%s" % type.value.type.to_string(), "%s[i]" % valueVar, refTable=False)
print " }"
if type.value:
valueType = type.value.toAtomicType()
else:
valueType = "OVSDB_TYPE_VOID"
print " ovsdb_datum_sort_unique(&datum, %s, %s);" % (
type.key.toAtomicType(), valueType)
print""" ovsdb_idl_condition_add_clause(idl, &%(p)stable_%(tl)s,
function,
&%(s)s_col_%(c)s,
&datum);\
""" % {'tl': tableName.lower(),
'T': tableName.upper(),
'p': prefix,
'P': prefix.upper(),
's': structName,
'S': structName.upper(),
'c': columnName}
for var in free:
print " free(%s);" % var
print "}"
print """\
void
%(s)s_add_clause_false(struct ovsdb_idl *idl)
{
struct ovsdb_datum datum;
ovsdb_datum_init_empty(&datum);
ovsdb_idl_condition_add_clause(idl, &%(p)stable_%(tl)s, OVSDB_F_FALSE, NULL, &datum);