Method enterPotentialWriteReadDeadlock

pgconn/pgconn.go:2107–2117

enterPotentialWriteReadDeadlock must be called before a write that could deadlock if the server is simultaneously blocked writing to us.

()

// enterPotentialWriteReadDeadlock must be called before a write that could deadlock if the server is simultaneously
// blocked writing to us.
func (pgConn *PgConn) enterPotentialWriteReadDeadlock() {
	// The time to wait is somewhat arbitrary. A Write should only take as long as the syscall and memcpy to the OS
	// outbound network buffer unless the buffer is full (which potentially is a block). It needs to be long enough for
	// the normal case, but short enough not to kill performance if a block occurs.
	//
	// In addition, on Windows the default timer resolution is 15.6ms. So setting the timer to less than that is
	// ineffective.
	if pgConn.slowWriteTimer.Reset(15 * time.Millisecond) {
		panic("BUG: slow write timer already active")
	}
}

// exitPotentialWriteReadDeadlock must be called after a call to enterPotentialWriteReadDeadlock.
func (pgConn *PgConn) exitPotentialWriteReadDeadlock() {