The JNI invocation API is specified here: http://java.sun.com/j2se/1.4.2/docs/guide/jni/spec/invocation.html#wp9502
See also JNI 1.2 enhancements: http://java.sun.com/j2se/1.4.2/docs/guide/jni/jni-12.html#invo Signed-off-by: Tomek Grabiec <tgrab...@gmail.com> --- include/vm/jni.h | 22 ++++++++++++++++++++ vm/jni-interface.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 78 insertions(+), 1 deletions(-) diff --git a/include/vm/jni.h b/include/vm/jni.h index 9fbb1a3..3b8acea 100644 --- a/include/vm/jni.h +++ b/include/vm/jni.h @@ -4,6 +4,22 @@ #include <stdbool.h> #include <stdint.h> +/* Version numbers. */ +#define JNI_VERSION_1_1 0x00010001 +#define JNI_VERSION_1_2 0x00010002 +#define JNI_VERSION_1_4 0x00010004 +#define JNI_VERSION_1_6 0x00010006 + +/* Used when releasing array elements. */ +#define JNI_COMMIT 1 +#define JNI_ABORT 2 + +/* Error codes */ +#define JNI_OK 0 +#define JNI_ERR (-1) +#define JNI_EDETACHED (-2) +#define JNI_EVERSION (-3) + #define JNI_FALSE 0 #define JNI_TRUE 1 @@ -47,6 +63,12 @@ struct vm_jni_env { void **jni_table; }; +struct java_vm { + void **jni_invoke_interface_table; +}; + +typedef struct java_vm JavaVM; + void vm_jni_init(void); struct vm_jni_env *vm_jni_get_jni_env(void); int vm_jni_load_object(const char *name); diff --git a/vm/jni-interface.c b/vm/jni-interface.c index 81b95ab..59391e9 100644 --- a/vm/jni-interface.c +++ b/vm/jni-interface.c @@ -52,6 +52,53 @@ if (!vm_object_is_instance_of((x), vm_java_lang_Class)) \ return NULL; +static void vm_jni_destroy_java_vm(void) { + NOT_IMPLEMENTED; +} + +static void vm_jni_attach_current_thread(void) { + NOT_IMPLEMENTED; +} + +static void vm_jni_detach_current_thread(void) { + NOT_IMPLEMENTED; +} + +static jint vm_jni_get_env(JavaVM *vm, void **env, jint version) { + enter_vm_from_jni(); + + /* XXX: We are actually supporting only a little part of 1.2 yet. */ + if (version > JNI_VERSION_1_2) { + *env = NULL; + return JNI_EVERSION; + } + + *env = vm_jni_get_jni_env(); + return JNI_OK; +} + +static void vm_jni_attach_current_thread_as_daemon(void) { + NOT_IMPLEMENTED; +} + +void *vm_jni_invoke_interface[] = { + NULL, + NULL, + NULL, + + vm_jni_destroy_java_vm, + vm_jni_attach_current_thread, + vm_jni_detach_current_thread, + + /* JNI_VERSION_1_2 */ + vm_jni_get_env, + vm_jni_attach_current_thread_as_daemon, +}; + +struct java_vm vm_jni_default_java_vm = { + .jni_invoke_interface_table = vm_jni_invoke_interface, +}; + static jclass vm_jni_find_class(struct vm_jni_env *env, const char *name) { @@ -361,6 +408,14 @@ static void vm_jni_delete_global_ref(struct vm_jni_env *env, jobject obj) NOT_IMPLEMENTED; } +static jint vm_jni_get_java_vm(struct vm_jni_env *env, struct java_vm **vm) +{ + enter_vm_from_jni(); + + *vm = &vm_jni_default_java_vm; + return 0; +} + /* * The JNI native interface table. * See: http://java.sun.com/j2se/1.4.2/docs/guide/jni/spec/functions.html @@ -672,7 +727,7 @@ void *vm_jni_native_interface[] = { NULL, /* UnregisterNatives */ NULL, /* MonitorEnter */ NULL, /* MonitorExit */ - NULL, /* GetJavaVM */ + vm_jni_get_java_vm, /* 220 */ NULL, /* GetJavaVM */ -- 1.6.0.6 ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jatovm-devel mailing list Jatovm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jatovm-devel
