Leahnaya/gba-link-connection
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Optimization: Trying to minimize time on ISRs

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This commit is contained in:
Rodrigo Alfonso
2023-02-11 06:31:48 -03:00
parent af0cdb69c0
commit e15f638fef
2 changed files with 6 additions and 15 deletions
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2
README.md
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@@ -156,7 +156,7 @@ Name | Type | Default | Description
`maxPlayers` | **u8** *(2~5)* | `5` | Maximum number of allowed players. The adapter will accept connections after reaching the limit, but the library will ignore them. If your game only supports -for example- two players, set this to `2` as it will make transfers faster.
`timeout` | **u32** | `5` | Number of *frames* without receiving *any* data to reset the connection.
`remoteTimeout` | **u32** | `10` | Number of *successful transfers* without a message from a client to mark the player as disconnected.
`interval` | **u16** | `50` | Number of *1024cycles* (61.04μs) ticks between transfers *(50 = 3,052ms)*. It's the interval of Timer #`sendTimerId`.
`interval` | **u16** | `50` | Number of *1024cycles* (61.04μs) ticks between transfers *(50 = 3.052ms)*. It's the interval of Timer #`sendTimerId`.
`sendTimerId` | **u8** *(0~3)* | `3` | GBA Timer to use for sending.
You can also change the compile-time constant `LINK_WIRELESS_QUEUE_SIZE` to set a custom buffer size (how many incoming and outcoming messages the queues can store at max). The default value is `30`, which seems fine for most games.

19
lib/LinkWireless.h
View File

@@ -484,22 +484,20 @@ class LinkWireless {
return;
linkSPI->_onSerial(true);
copyOutgoingState();
bool hasNewData = linkSPI->getAsyncState() == LinkSPI::AsyncState::READY;
if (hasNewData)
if (hasNewData) {
if (!acknowledge()) {
reset();
lastError = ACKNOWLEDGE_FAILED;
copyState();
return;
}
} else
return;
u32 newData = linkSPI->getAsyncData();
if (!isSessionActive()) {
copyState();
if (!isSessionActive())
return;
}
if (asyncCommand.isActive) {
if (asyncCommand.state == AsyncCommand::State::PENDING) {
@@ -512,30 +510,23 @@ class LinkWireless {
processAsyncCommand();
}
}
copyState();
}
void _onTimer() {
if (!isEnabled)
return;
if (!isSessionActive()) {
copyState();
if (!isSessionActive())
return;
}
if (sessionState.recvTimeout >= config.timeout) {
reset();
lastError = TIMEOUT;
copyState();
return;
}
if (!asyncCommand.isActive)
acceptConnectionsOrSendData();
copyState();
}
private: