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[#3438] Throw pre-instanced IOException on connection reset

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Motivation:

In the native transport we should throw a pre-instanced IOException on connection reset while reading.

Modifications:

Correctly throw pre-instanced IOException when ECONNRESET is received

Result:

Less overhead on connection reset
This commit is contained in:
Norman Maurer 2015-02-19 15:06:26 +01:00
parent 6950bfb5d8
commit 29a5bc9fb6
3 changed files with 26 additions and 10 deletions
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4
transport-native-epoll/src/main/c/io_netty_channel_epoll_Native.c
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@ -1347,6 +1347,10 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_errnoEPIPE(JNIEnv* env
return EPIPE;
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_errnoECONNRESET(JNIEnv* env, jclass clazz) {
return ECONNRESET;
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_errnoEAGAIN(JNIEnv* env, jclass clazz) {
return EAGAIN;
}

1
transport-native-epoll/src/main/c/io_netty_channel_epoll_Native.h
View File

@ -108,6 +108,7 @@ jboolean Java_io_netty_channel_epoll_Native_isSupportingSendmmsg(JNIEnv* env, jc
jint Java_io_netty_channel_epoll_Native_errnoEBADF(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_errnoEPIPE(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_errnoECONNRESET(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_errnoEAGAIN(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_errnoEWOULDBLOCK(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_errnoEINPROGRESS(JNIEnv* env, jclass clazz);

31
transport-native-epoll/src/main/java/io/netty/channel/epoll/Native.java
View File

@ -65,6 +65,7 @@ final class Native {
// As all our JNI methods return -errno on error we need to compare with the negative errno codes.
private static final int ERRNO_EBADF_NEGATIVE = -errnoEBADF();
private static final int ERRNO_EPIPE_NEGATIVE = -errnoEPIPE();
private static final int ERRNO_ECONNRESET_NEGATIVE = -errnoECONNRESET();
private static final int ERRNO_EAGAIN_NEGATIVE = -errnoEAGAIN();
private static final int ERRNO_EWOULDBLOCK_NEGATIVE = -errnoEWOULDBLOCK();
private static final int ERRNO_EINPROGRESS_NEGATIVE = -errnoEINPROGRESS();
@ -94,19 +95,27 @@ final class Native {
// This is ok as strerror returns 'Unknown error i' when the message is not known.
ERRORS[i] = strError(i);
}
CONNECTION_RESET_EXCEPTION_WRITE = newConnectionResetException("write");
CONNECTION_RESET_EXCEPTION_WRITEV = newConnectionResetException("writev");
CONNECTION_RESET_EXCEPTION_READ = newConnectionResetException("read");
CONNECTION_RESET_EXCEPTION_SENDFILE = newConnectionResetException("sendfile");
CONNECTION_RESET_EXCEPTION_SENDTO = newConnectionResetException("sendto");
CONNECTION_RESET_EXCEPTION_SENDMSG = newConnectionResetException("sendmsg");
CONNECTION_RESET_EXCEPTION_SENDMMSG = newConnectionResetException("sendmmsg");
CONNECTION_RESET_EXCEPTION_READ = newConnectionResetException("syscall:read(...)",
ERRNO_ECONNRESET_NEGATIVE);
CONNECTION_RESET_EXCEPTION_WRITE = newConnectionResetException("syscall:write(...)",
ERRNO_EPIPE_NEGATIVE);
CONNECTION_RESET_EXCEPTION_WRITEV = newConnectionResetException("syscall:writev(...)",
ERRNO_EPIPE_NEGATIVE);
CONNECTION_RESET_EXCEPTION_SENDFILE = newConnectionResetException("syscall:sendfile(...)",
ERRNO_EPIPE_NEGATIVE);
CONNECTION_RESET_EXCEPTION_SENDTO = newConnectionResetException("syscall:sendto(...)",
ERRNO_EPIPE_NEGATIVE);
CONNECTION_RESET_EXCEPTION_SENDMSG = newConnectionResetException("syscall:sendmsg(...)",
ERRNO_EPIPE_NEGATIVE);
CONNECTION_RESET_EXCEPTION_SENDMMSG = newConnectionResetException("syscall:sendmmsg(...)",
ERRNO_EPIPE_NEGATIVE);
CLOSED_CHANNEL_EXCEPTION = new ClosedChannelException();
CLOSED_CHANNEL_EXCEPTION.setStackTrace(EmptyArrays.EMPTY_STACK_TRACE);
}
private static IOException newConnectionResetException(String method) {
IOException exception = newIOException(method, ERRNO_EPIPE_NEGATIVE);
private static IOException newConnectionResetException(String method, int errnoNegative) {
IOException exception = newIOException(method, errnoNegative);
exception.setStackTrace(EmptyArrays.EMPTY_STACK_TRACE);
return exception;
}
@ -120,7 +129,7 @@ final class Native {
if (err == ERRNO_EAGAIN_NEGATIVE || err == ERRNO_EWOULDBLOCK_NEGATIVE) {
return 0;
}
if (err == ERRNO_EPIPE_NEGATIVE) {
if (err == ERRNO_EPIPE_NEGATIVE || err == ERRNO_ECONNRESET_NEGATIVE) {
throw resetCause;
}
if (err == ERRNO_EBADF_NEGATIVE) {
@ -151,6 +160,8 @@ final class Native {
private static native int errnoEBADF();
private static native int errnoEPIPE();
private static native int errnoECONNRESET();
private static native int errnoEAGAIN();
private static native int errnoEWOULDBLOCK();
private static native int errnoEINPROGRESS();