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Set socket keep alive

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This commit is contained in:
M66B
2020-11-08 15:26:18 +01:00
parent dad1977eac
commit d867ba05ed
4 changed files with 40 additions and 6 deletions
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14
app/src/main/java/eu/faircode/email/EmailService.java
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@@ -21,6 +21,7 @@ package eu.faircode.email;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.ParcelFileDescriptor;
import android.security.KeyChain;
import android.text.TextUtils;
@@ -144,6 +145,12 @@ public class EmailService implements AutoCloseable {
// TLS_FALLBACK_SCSV https://tools.ietf.org/html/rfc7507
// TLS_EMPTY_RENEGOTIATION_INFO_SCSV https://tools.ietf.org/html/rfc5746
static {
System.loadLibrary("fairemail");
}
private static native int jni_socket_keep_alive(int fd, int seconds);
private EmailService() {
// Prevent instantiation
}
@@ -1032,13 +1039,18 @@ public class EmailService implements AutoCloseable {
if (keepAlive) {
Log.e("Socket keep-alive=" + keepAlive);
socket.setKeepAlive(false);
socket.setKeepAlive(false); // sets SOL_SOCKET/SO_KEEPALIVE
}
if (linger >= 0) {
Log.e("Socket linger=" + linger);
socket.setSoLinger(false, -1);
}
int fd = ParcelFileDescriptor.fromSocket(socket).getFd();
int errno = jni_socket_keep_alive(fd, 9 * 60);
if (errno != 0)
Log.e("Socket TCP_KEEPIDLE=" + errno);
}
class UntrustedException extends MessagingException {