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Fail build on warnings in the native transport

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Motivation:

We should fail the build on warnings in the JNI/c code.

Modifications:

- Add GCC flag to fail build on warnings.
- Fix warnings (which also fixed a bug when using splice with offsets).

Result:

Better code quality.
This commit is contained in:
Norman Maurer 2015-09-30 15:04:06 +02:00
parent 696a287736
commit f3184f56c8
4 changed files with 21 additions and 13 deletions
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4
transport-native-epoll/pom.xml
View File

@ -186,7 +186,7 @@
<value>${linux.sendmmsg.support}${glibc.sendmmsg.support}</value>
<!-- If glibc and linux kernel are both not sufficient...then define the CFLAGS -->
<regex>.*IO_NETTY_SENDMSSG_NOT_FOUND.*</regex>
<replacement>CFLAGS=-O3 -DIO_NETTY_SENDMMSG_NOT_FOUND</replacement>
<replacement>CFLAGS=-O3 -DIO_NETTY_SENDMMSG_NOT_FOUND -Werror</replacement>
<failIfNoMatch>false</failIfNoMatch>
</configuration>
</execution>
@ -202,7 +202,7 @@
<value>${jni.compiler.args}</value>
<!-- If glibc and linux kernel are both not sufficient...then define the CFLAGS -->
<regex>^((?!CFLAGS=).)*$</regex>
<replacement>CFLAGS=-O3</replacement>
<replacement>CFLAGS=-O3 -Werror</replacement>
<failIfNoMatch>false</failIfNoMatch>
</configuration>
</execution>

24
transport-native-epoll/src/main/c/io_netty_channel_epoll_Native.c
View File

@ -33,6 +33,7 @@
#include <sys/utsname.h>
#include <stddef.h>
#include <limits.h>
#include <inttypes.h>
#include "io_netty_channel_epoll_Native.h"
#include "exception_helper.h"
@ -1057,6 +1058,8 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_shutdown0(JNIEnv* env,
mode = SHUT_RD;
} else if (write) {
mode = SHUT_WR;
} else {
return -EINVAL;
}
if (shutdown(fd, mode) < 0) {
return -errno;
@ -1097,12 +1100,14 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_bind(JNIEnv* env, jcla
if (bind(fd, (struct sockaddr*) &addr, sizeof(addr)) == -1) {
return -errno;
}
return 0;
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_listen0(JNIEnv* env, jclass clazz, jint fd, jint backlog) {
if (listen(fd, backlog) == -1) {
return -errno;
}
return 0;
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_connect(JNIEnv* env, jclass clazz, jint fd, jbyteArray address, jint scopeId, jint port) {
@ -1560,7 +1565,7 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_socketDomain(JNIEnv* e
// macro to calculate the length of a sockaddr_un struct for a given path length.
// see sys/un.h#SUN_LEN, this is modified to allow nul bytes
#define _UNIX_ADDR_LENGTH(path_len) (((struct sockaddr_un *) 0)->sun_path) + path_len
#define _UNIX_ADDR_LENGTH(path_len) (uintptr_t) (((struct sockaddr_un *) 0)->sun_path) + path_len
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_bindDomainSocket(JNIEnv* env, jclass clazz, jint fd, jbyteArray socketPath) {
struct sockaddr_un addr;
@ -1568,7 +1573,7 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_bindDomainSocket(JNIEn
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
const jbyte* socket_path = (*env)->GetByteArrayElements(env, socketPath, 0);
jbyte* socket_path = (*env)->GetByteArrayElements(env, socketPath, 0);
jint socket_path_len = (*env)->GetArrayLength(env, socketPath);
if (socket_path_len > sizeof(addr.sun_path)) {
socket_path_len = sizeof(addr.sun_path);
@ -1595,7 +1600,7 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_connectDomainSocket(JN
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
const jbyte* socket_path = (*env)->GetByteArrayElements(env, socketPath, 0);
jbyte* socket_path = (*env)->GetByteArrayElements(env, socketPath, 0);
socket_path_len = (*env)->GetArrayLength(env, socketPath);
if (socket_path_len > sizeof(addr.sun_path)) {
socket_path_len = sizeof(addr.sun_path);
@ -1685,7 +1690,7 @@ JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_sendFd0(JNIEnv* env, j
iov[0].iov_base = iovecData;
iov[0].iov_len = sizeof(iovecData);
size_t res;
ssize_t res;
int err;
do {
res = sendmsg(socketFd, &descriptorMessage, 0);
@ -1758,14 +1763,17 @@ JNIEXPORT jlong JNICALL Java_io_netty_channel_epoll_Native_pipe0(JNIEnv* env, jc
return (((long) fd[0]) << 32) | (fd[1] & 0xffffffffL);
}
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_splice0(JNIEnv* env, jclass clazz, jint fd, jint offIn, jint fdOut, jint offOut, jint len) {
JNIEXPORT jint JNICALL Java_io_netty_channel_epoll_Native_splice0(JNIEnv* env, jclass clazz, jint fd, jlong offIn, jint fdOut, jlong offOut, jlong len) {
ssize_t res;
int err;
loff_t off_in = offIn >= 0 ? (loff_t) offIn : NULL;
loff_t off_out = offOut >= 0 ? (loff_t) offOut : NULL;
loff_t off_in = (loff_t) offIn;
loff_t off_out = (loff_t) offOut;
loff_t* p_off_in = off_in >= 0 ? &off_in : NULL;
loff_t* p_off_out = off_in >= 0 ? &off_out : NULL;
do {
res = splice(fd, off_in, fdOut, off_out, (size_t) len, SPLICE_F_NONBLOCK | SPLICE_F_MOVE);
res = splice(fd, p_off_in, fdOut, p_off_out, (size_t) len, SPLICE_F_NONBLOCK | SPLICE_F_MOVE);
// keep on splicing if it was interrupted
} while (res == -1 && ((err = errno) == EINTR));

2
transport-native-epoll/src/main/c/io_netty_channel_epoll_Native.h
View File

@ -130,7 +130,7 @@ jint Java_io_netty_channel_epoll_Native_sizeofEpollEvent(JNIEnv* env, jclass cla
jint Java_io_netty_channel_epoll_Native_offsetofEpollData(JNIEnv* env, jclass clazz);
jlong Java_io_netty_channel_epoll_Native_pipe0(JNIEnv* env, jclass clazz);
jint Java_io_netty_channel_epoll_Native_splice0(JNIEnv* env, jclass clazz, jint fd, jint offIn, jint fdOut, jint offOut, jint len);
jint Java_io_netty_channel_epoll_Native_splice0(JNIEnv* env, jclass clazz, jint fd, jlong offIn, jint fdOut, jlong offOut, jlong len);
jint Java_io_netty_channel_epoll_Native_tcpMd5SigMaxKeyLen(JNIEnv* env, jclass clazz);
void Java_io_netty_channel_epoll_Native_setTcpMd5Sig0(JNIEnv* env, jclass clazz, jint fd, jbyteArray address, jint scopeId, jbyteArray key);

4
transport-native-epoll/src/main/java/io/netty/channel/epoll/Native.java
View File

@ -205,7 +205,7 @@ public final class Native {
private static native int close0(int fd);
public static int splice(int fd, int offIn, int fdOut, int offOut, int len) throws IOException {
public static int splice(int fd, long offIn, int fdOut, long offOut, long len) throws IOException {
int res = splice0(fd, offIn, fdOut, offOut, len);
if (res >= 0) {
return res;
@ -213,7 +213,7 @@ public final class Native {
return ioResult("splice", res, CONNECTION_RESET_EXCEPTION_SPLICE);
}
private static native int splice0(int fd, int offIn, int fdOut, int offOut, int len);
private static native int splice0(int fd, long offIn, int fdOut, long offOut, long len);
public static long pipe() throws IOException {
long res = pipe0();