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author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-07-20 22:11:55 +0200 |
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committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-07-20 22:11:55 +0200 |
commit | 3a8b10d40f96a6252ad744c5a410359985fd3358 (patch) | |
tree | b209ce1483117a41bf0435902957d679aefb8354 /user/jkoenig | |
parent | f4ccf1f65a28fe61f268f75db9b575b716fe2cc5 (diff) | |
parent | 9c5d5fdd54d403540766dae48f8f7875dbed551b (diff) |
Merge branch 'master' of flubber:~hurd-web/hurd-web
Diffstat (limited to 'user/jkoenig')
-rw-r--r-- | user/jkoenig/java.mdwn | 8 | ||||
-rw-r--r-- | user/jkoenig/java/discussion.mdwn | 33 |
2 files changed, 41 insertions, 0 deletions
diff --git a/user/jkoenig/java.mdwn b/user/jkoenig/java.mdwn index 700f9c4e..9732e2cd 100644 --- a/user/jkoenig/java.mdwn +++ b/user/jkoenig/java.mdwn @@ -50,6 +50,14 @@ My latest code is available on and modified Debian packages are available in my apt repository. +2011-07-20: +The patches were reviewed by Samuel Thibault. +Samuel pointed out a couple of issues +and I beleive I have addressed all of them (fixes posted). +I'm in the process of publishing updated libc and hurd packages; +provided those work as expected, +the next step would be to get these changes into Debian. + One question is how the new symbols introduced by my patches should be handled. Weak symbols turned out to be impractical, diff --git a/user/jkoenig/java/discussion.mdwn b/user/jkoenig/java/discussion.mdwn index f16d7678..352f6d62 100644 --- a/user/jkoenig/java/discussion.mdwn +++ b/user/jkoenig/java/discussion.mdwn @@ -77,6 +77,39 @@ either new ones or existing ones, as applicable. pages ([[!taglink open_issue_documentation]]). +# Java Native Interface (JNI) + + * <http://en.wikipedia.org/wiki/Java_Native_Interface> + * <http://download.oracle.com/javase/7/docs/technotes/guides/jni/> + * <http://java.sun.com/products/jdk/faq/jnifaq.html> + * <http://java.sun.com/docs/books/jni/> + + +## Java Native Access (JNA) + + * <http://jna.java.net/> + * <https://github.com/twall/jna#readme> + +This is a different approach, and *while some attention is paid to performance, +correctness and ease of use take priority*. + +As we plan on only having a few native methods (for invoking `mach_msg`, +essentially), JNA is probably the wrong approach: portability and ease of use +is not important, but performance is. + +## Compiled Native Interface (CNI) + + * <http://gcc.gnu.org/onlinedocs/gcj/About-CNI.html> + * <http://per.bothner.com/papers/UsenixJVM01/CNI01.pdf> + +Probably faster than JNI, but only usable with GCJ. + +> Given that we have very few JNI calls, +> it might be interesting to take a "dual" approach +> if CNI actually improves performance +> when compiling to native code. +> --[[jkoenig]] 2011-07-20 + # IRC, freenode, #hurd, 2011-07-13 [[!tag open_issue_documentation]] |