33 lines
1.1 KiB
V
33 lines
1.1 KiB
V
module builtin
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// ChanState describes the result of an attempted channel transaction.
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pub enum ChanState {
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success
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not_ready // push()/pop() would have to wait, but no_block was requested
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closed
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}
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/*
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The following methods are only stubs.
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The real implementation is in `vlib/sync/channels.v`
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*/
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// close closes the channel for further push transactions.
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// closed channels cannot be pushed to, however they can be popped
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// from as long as there is still objects available in the channel buffer.
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pub fn (ch chan) close() {}
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// try_pop returns `ChanState.success` if an object is popped from the channel.
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// try_pop effectively pops from the channel without waiting for objects to become available.
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// Both the test and pop transaction is done atomically.
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pub fn (ch chan) try_pop(obj voidptr) ChanState {
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return .success
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}
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// try_push returns `ChanState.success` if the object is pushed to the channel.
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// try_push effectively both push and test if the transaction `ch <- a` succeeded.
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// Both the test and push transaction is done atomically.
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pub fn (ch chan) try_push(obj voidptr) ChanState {
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return .success
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}
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