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[ntcore] Add sub option for local vs remote changes (#4731)

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This is the subscriber readQueue version of the local value listener flag.
This commit is contained in:
Peter Johnson
2022-11-29 21:57:20 -08:00
committed by GitHub
parent 18d28ec5e3
commit 9b319fd56b
7 changed files with 127 additions and 5 deletions
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4
ntcore/src/main/native/include/ntcore_c.h
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@@ -95,6 +95,7 @@ enum NT_PubSubOptionType {
NT_PUBSUB_TOPICSONLY, /* only send topic changes, no value changes */
NT_PUBSUB_POLLSTORAGE, /* polling storage for subscription */
NT_PUBSUB_KEEPDUPLICATES, /* preserve duplicate values */
NT_PUBSUB_LOCALREMOTE, /* local, remote, or any value changes */
};
/** Event notification flags. */
@@ -287,7 +288,8 @@ struct NT_PubSubOption {
/**
* Option value. 1 (true) or 0 (false) for immediate and logging options,
* time between updates, in seconds, for periodic option.
* time between updates, in seconds, for periodic option. For local/remote
* option, 1=local only, 2=remote only, 0 or 3=both local and remote.
*/
double value;
};

35
ntcore/src/main/native/include/ntcore_cpp.h
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@@ -314,7 +314,7 @@ class PubSubOption {
/**
* Polling storage for subscription. Specifies the maximum number of updates
* NetworkTables should store between calls to the subscriber's poll()
* NetworkTables should store between calls to the subscriber's ReadQueue()
* function. Defaults to 1 if SendAll is false, 20 if SendAll is true.
*
* @param depth number of entries to save for polling.
@@ -324,6 +324,39 @@ class PubSubOption {
return PubSubOption{NT_PUBSUB_POLLSTORAGE, static_cast<double>(depth)};
}
/**
* If only local value updates should be queued for ReadQueue(). See also
* RemoteOnly() and AllUpdates(). Default is AllUpdates. Only has an effect on
* subscriptions.
*
* @return option
*/
static constexpr PubSubOption LocalOnly() {
return PubSubOption{NT_PUBSUB_LOCALREMOTE, 1.0};
}
/**
* If only remote value updates should be queued for ReadQueue(). See also
* LocalOnly() and AllUpdates(). Default is AllUpdates. Only has an effect on
* subscriptions.
*
* @return option
*/
static constexpr PubSubOption RemoteOnly() {
return PubSubOption{NT_PUBSUB_LOCALREMOTE, 2.0};
}
/**
* If both local and remote value updates should be queued for ReadQueue().
* See also LocalOnly() and RemoteOnly(). Default is AllUpdates. Only has an
* effect on subscriptions.
*
* @return option
*/
static constexpr PubSubOption AllUpdates() {
return PubSubOption{NT_PUBSUB_LOCALREMOTE, 0.0};
}
NT_PubSubOptionType type;
double value;
};