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https://github.com/matrix-org/dendrite
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9d53351dc2
* Offset updates take place using TransactionWriter * Refactor TransactionWriter in current state server * Refactor TransactionWriter in federation sender * Refactor TransactionWriter in key server * Refactor TransactionWriter in media API * Refactor TransactionWriter in server key API * Refactor TransactionWriter in sync API * Refactor TransactionWriter in user API * Fix deadlocking Sync API tests * Un-deadlock device database * Fix appservice API * Rename TransactionWriters to Writers * Move writers up a layer in sync API * Document sqlutil.Writer interface * Add note to Writer documentation
28 lines
685 B
Go
28 lines
685 B
Go
package sqlutil
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import (
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"database/sql"
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)
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// DummyWriter implements sqlutil.Writer.
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// The DummyWriter is designed to allow reuse of the sqlutil.Writer
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// interface but, unlike ExclusiveWriter, it will not guarantee
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// writer exclusivity. This is fine in PostgreSQL where overlapping
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// transactions and writes are acceptable.
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type DummyWriter struct {
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}
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// NewDummyWriter returns a new dummy writer.
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func NewDummyWriter() Writer {
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return &DummyWriter{}
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}
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func (w *DummyWriter) Do(db *sql.DB, txn *sql.Tx, f func(txn *sql.Tx) error) error {
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if db != nil && txn == nil {
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return WithTransaction(db, func(txn *sql.Tx) error {
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return f(txn)
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})
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} else {
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return f(txn)
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}
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}
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