31 lines
673 B
Go
31 lines
673 B
Go
package rpc
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import (
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"fmt"
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"net"
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)
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var portRangeMin int = 10000
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var portRangeMax int = 11000
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// This sets the port range that the RPC stuff will use when creating
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// new temporary servers. Some RPC calls require the creation of temporary
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// RPC servers. These allow you to pick a range these bind to.
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func PortRange(min, max int) {
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portRangeMin = min
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portRangeMax = max
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}
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// This finds an open port in the given range and returns a listener
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// bound to that port.
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func netListenerInRange(min, max int) net.Listener {
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for port := min; port <= max; port++ {
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l, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
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if err == nil {
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return l
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}
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}
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return nil
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}
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