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6728542: (se) epoll based SelectorProvider should be portable to platforms other than x86 and x64

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Reviewed-by: sherman
This commit is contained in:
Alan Bateman 2008-08-26 09:23:12 +01:00
parent f1c6258165
commit 827a25e39d
3 changed files with 30 additions and 6 deletions
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2
jdk/make/java/nio/mapfile-linux
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@ -18,6 +18,8 @@ SUNWprivate_1.1 {
Java_sun_nio_ch_EPollArrayWrapper_fdLimit;
Java_sun_nio_ch_EPollArrayWrapper_init;
Java_sun_nio_ch_EPollArrayWrapper_interrupt;
Java_sun_nio_ch_EPollArrayWrapper_offsetofData;
Java_sun_nio_ch_EPollArrayWrapper_sizeofEPollEvent;
Java_sun_nio_ch_FileChannelImpl_close0;
Java_sun_nio_ch_FileChannelImpl_force0;
Java_sun_nio_ch_FileChannelImpl_initIDs;

12
jdk/src/solaris/classes/sun/nio/ch/EPollArrayWrapper.java
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@ -69,11 +69,11 @@ class EPollArrayWrapper {
static final int EPOLL_CTL_MOD = 3;
// Miscellaneous constants
static final short SIZE_EPOLLEVENT = 12;
static final short EVENT_OFFSET = 0;
static final short DATA_OFFSET = 4;
static final short FD_OFFSET = 4;
static final int NUM_EPOLLEVENTS = Math.min(fdLimit(), 8192);
static final int SIZE_EPOLLEVENT = sizeofEPollEvent();
static final int EVENT_OFFSET = 0;
static final int DATA_OFFSET = offsetofData();
static final int FD_OFFSET = DATA_OFFSET;
static final int NUM_EPOLLEVENTS = Math.min(fdLimit(), 8192);
// Base address of the native pollArray
private final long pollArrayAddress;
@ -280,6 +280,8 @@ class EPollArrayWrapper {
private native void epollCtl(int epfd, int opcode, int fd, int events);
private native int epollWait(long pollAddress, int numfds, long timeout,
int epfd) throws IOException;
private static native int sizeofEPollEvent();
private static native int offsetofData();
private static native int fdLimit();
private static native void interrupt(int fd);
private static native void init();

22
jdk/src/solaris/native/sun/nio/ch/EPollArrayWrapper.c
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@ -48,10 +48,18 @@ typedef union epoll_data {
__uint64_t u64;
} epoll_data_t;
/* x86-64 has same alignment as 32-bit */
#ifdef __x86_64__
#define EPOLL_PACKED __attribute__((packed))
#else
#define EPOLL_PACKED
#endif
struct epoll_event {
__uint32_t events; /* Epoll events */
epoll_data_t data; /* User data variable */
} __attribute__ ((__packed__));
} EPOLL_PACKED;
#ifdef __cplusplus
}
@ -143,6 +151,18 @@ Java_sun_nio_ch_EPollArrayWrapper_fdLimit(JNIEnv *env, jclass this)
return (jint)rlp.rlim_max;
}
JNIEXPORT jint JNICALL
Java_sun_nio_ch_EPollArrayWrapper_sizeofEPollEvent(JNIEnv* env, jclass this)
{
return sizeof(struct epoll_event);
}
JNIEXPORT jint JNICALL
Java_sun_nio_ch_EPollArrayWrapper_offsetofData(JNIEnv* env, jclass this)
{
return offsetof(struct epoll_event, data);
}
JNIEXPORT void JNICALL
Java_sun_nio_ch_EPollArrayWrapper_epollCtl(JNIEnv *env, jobject this, jint epfd,
jint opcode, jint fd, jint events)