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Factor mailbox problem detection into MailboxStatus and constants

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This commit is contained in:
Torsten Grote
2022-05-25 13:06:54 -03:00
parent 6c19b22aab
commit 54339afab8
4 changed files with 27 additions and 5 deletions
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14
bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxConstants.java
View File

@@ -1,5 +1,6 @@
package org.briarproject.bramble.api.mailbox;
import static java.util.concurrent.TimeUnit.HOURS;
import static org.briarproject.bramble.api.transport.TransportConstants.MAX_FRAME_LENGTH;
import static org.briarproject.bramble.api.transport.TransportConstants.MAX_PAYLOAD_LENGTH;
import static org.briarproject.bramble.api.transport.TransportConstants.STREAM_HEADER_LENGTH;
@@ -20,4 +21,17 @@ public interface MailboxConstants {
int MAX_FILE_PAYLOAD_BYTES =
(MAX_FILE_BYTES - TAG_LENGTH - STREAM_HEADER_LENGTH)
/ MAX_FRAME_LENGTH * MAX_PAYLOAD_LENGTH;
/**
* The number of connection failures
* that indicate a problem with the mailbox.
*/
int PROBLEM_NUM_CONNECTION_FAILURES = 5;
/**
* The time in milliseconds since the last connection success
* that need to pass to indicates a problem with the mailbox.
*/
long PROBLEM_MS_SINCE_LAST_SUCCESS = HOURS.toMillis(1);
}

11
bramble-api/src/main/java/org/briarproject/bramble/api/mailbox/MailboxStatus.java
View File

@@ -4,6 +4,9 @@ import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import javax.annotation.concurrent.Immutable;
import static org.briarproject.bramble.api.mailbox.MailboxConstants.PROBLEM_MS_SINCE_LAST_SUCCESS;
import static org.briarproject.bramble.api.mailbox.MailboxConstants.PROBLEM_NUM_CONNECTION_FAILURES;
@Immutable
@NotNullByDefault
public class MailboxStatus {
@@ -56,4 +59,12 @@ public class MailboxStatus {
public int getAttemptsSinceSuccess() {
return attemptsSinceSuccess;
}
/**
* @return true if this status indicates a problem with the mailbox.
*/
public boolean hasProblem(long now) {
return attemptsSinceSuccess >= PROBLEM_NUM_CONNECTION_FAILURES &&
(now - lastSuccess) >= PROBLEM_MS_SINCE_LAST_SUCCESS;
}
}