46 lines
1.3 KiB
Go
46 lines
1.3 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package wasm
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import "github.com/vulcanize/vulcanizedb/pkg/postgres"
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type Instantiator struct {
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db *postgres.DB
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instances [][2]string // list of WASM file paths and namespaces
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}
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func NewWASMInstantiator(db *postgres.DB, instances [][2]string) *Instantiator {
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return &Instantiator{
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db: db,
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instances: instances,
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}
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}
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func (i *Instantiator) Instantiate() error {
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tx, err := i.db.Beginx()
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if err != nil {
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return err
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}
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for _, pn := range i.instances {
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_, err := i.db.Exec(`SELECT wasm_new_instance('$1', '$2')`, pn[0], pn[1])
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if err != nil {
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return err
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}
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}
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return tx.Commit()
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}
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