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* rpc: support subscriptions under custom namespacesBas van Kervel2017-04-251-16/+19
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* all: import "context" instead of "golang.org/x/net/context"Felix Lange2017-03-231-1/+1
| | | | | | | | | | There is no need to depend on the old context package now that the minimum Go version is 1.7. The move to "context" eliminates our weird vendoring setup. Some vendored code still uses golang.org/x/net/context and it is now vendored in the normal way. This change triggered new vet checks around context.WithTimeout which didn't fire with golang.org/x/net/context.
* all: blidly swap out glog to our log15, logs need reworkPéter Szilágyi2017-02-231-20/+19
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* rpc: send nil on subscription Err channel when Client is closedFelix Lange2017-01-261-1/+4
| | | | | This change makes client subscriptions compatible with the new Subscription semantics introduced in the previous commit.
* rpc: add context argument to EthSubscribeFelix Lange2016-08-061-3/+3
| | | | | It's inconsistent not to pass it and most callers will work with contexts anyway.
* rpc: ensure client doesn't block for slow subscribersFelix Lange2016-08-061-30/+62
| | | | | | | | | | | | | | | | | | | | | I initially made the client block if the 100-element buffer was exceeded. It turns out that this is inconvenient for simple uses of the client which subscribe and perform calls on the same goroutine, e.g. client, _ := rpc.Dial(...) ch := make(chan int) // note: no buffer sub, _ := client.EthSubscribe(ch, "something") for event := range ch { client.Call(...) } This innocent looking code will lock up if the server suddenly decides to send 2000 notifications. In this case, the client's main loop won't accept the call because it is trying to deliver a notification to ch. The issue is kind of hard to explain in the docs and few people will actually read them. Buffering is the simple option and works with close to no overhead for subscribers that always listen.
* rpc: don't exceed context deadline while waiting for send lockFelix Lange2016-08-051-0/+4
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* rpc: add new client, use it everywhereFelix Lange2016-07-231-0/+740
The new client implementation supports concurrent requests, subscriptions and replaces the various ad hoc RPC clients throughout go-ethereum.