-/* context_java - implementation of context switching for java threads */
-
-/* Copyright (c) 2009, 2010. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-
-#include "xbt/function_types.h"
-#include "smx_context_java.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(jmsg, bindings, "MSG for Java(TM)");
-
-static smx_context_t
-smx_ctx_java_factory_create_context(xbt_main_func_t code, int argc,
- char **argv,
- void_pfn_smxprocess_t cleanup_func,
- void *data);
-
-static void smx_ctx_java_free(smx_context_t context);
-static void smx_ctx_java_start(smx_context_t context);
-static void smx_ctx_java_stop(smx_context_t context);
-static void smx_ctx_java_suspend(smx_context_t context);
-static void smx_ctx_java_resume(smx_context_t new_context);
-static void smx_ctx_java_runall(xbt_swag_t processes);
-
-void SIMIX_ctx_java_factory_init(smx_context_factory_t * factory)
-{
- /* instantiate the context factory */
- smx_ctx_base_factory_init(factory);
-
- (*factory)->create_context = smx_ctx_java_factory_create_context;
- /* Leave default behavior of (*factory)->finalize */
- (*factory)->free = smx_ctx_java_free;
- (*factory)->stop = smx_ctx_java_stop;
- (*factory)->suspend = smx_ctx_java_suspend;
- (*factory)->runall = smx_ctx_java_runall;
- (*factory)->name = "ctx_java_factory";
-}
-
-static smx_context_t
-smx_ctx_java_factory_create_context(xbt_main_func_t code, int argc,
- char **argv,
- void_pfn_smxprocess_t cleanup_func,
- void* data)
-{
- smx_ctx_java_t context = xbt_new0(s_smx_ctx_java_t, 1);
-
- /* If the user provided a function for the process then use it
- otherwise is the context for maestro */
- if (code) {
- context->super.cleanup_func = cleanup_func;
- context->jprocess = (jobject) code;
- context->jenv = get_current_thread_env();
- jprocess_start(((smx_ctx_java_t) context)->jprocess,
- get_current_thread_env());
- }else{
- smx_current_context = (smx_context_t)context;
- }
- context->super.data = data;
-
- return (smx_context_t) context;
-}
-
-static void smx_ctx_java_free(smx_context_t context)
-{
- if (context) {
- smx_ctx_java_t ctx_java = (smx_ctx_java_t) context;
-
- if (ctx_java->jprocess) {
- jobject jprocess = ctx_java->jprocess;
-
- ctx_java->jprocess = NULL;
-
- /* if the java process is alive join it */
- if (jprocess_is_alive(jprocess, get_current_thread_env()))
- jprocess_join(jprocess, get_current_thread_env());
- }
- }
-
- smx_ctx_base_free(context);
-}
-
-static void smx_ctx_java_stop(smx_context_t context)
-{
- jobject jprocess = NULL;
-
- smx_ctx_java_t ctx_java;
-
- if (context->cleanup_func)
- (*(context->cleanup_func)) (context->data);
-
- ctx_java = (smx_ctx_java_t) context;
-
- /*FIXME: is this really necessary? */
- if (((smx_process_t)smx_current_context->data)->iwannadie) {
- /* The maestro call xbt_context_stop() with an exit code set to one */
- if (ctx_java->jprocess) {
- /* if the java process is alive schedule it */
- if (jprocess_is_alive(ctx_java->jprocess, get_current_thread_env())) {
- jprocess_schedule(smx_current_context);
- jprocess = ctx_java->jprocess;
- ctx_java->jprocess = NULL;
-
- /* interrupt the java process */
- jprocess_exit(jprocess, get_current_thread_env());
- }
- }
- } else {
- /* the java process exits */
- jprocess = ctx_java->jprocess;
- ctx_java->jprocess = NULL;
- }
-
- /* delete the global reference associated with the java process */
- jprocess_delete_global_ref(jprocess, get_current_thread_env());
-}
-
-/*static void smx_ctx_java_swap(smx_context_t context)
-{
- if (context) {
- smx_context_t self = current_context;
-
- current_context = context;
-
- jprocess_schedule(context);
-
- current_context = self;
- }
-
- if (current_context->iwannadie)
- smx_ctx_java_stop(1);
-}*/
-
-static void smx_ctx_java_suspend(smx_context_t context)
-{
- jprocess_unschedule(context);
-}
-
-// FIXME: inline those functions
-static void smx_ctx_java_resume(smx_context_t new_context)
-{
- jprocess_schedule(new_context);
-}
-
-static void smx_ctx_java_runall(xbt_swag_t processes)
-{
- smx_process_t process;
- smx_context_t old_context;
-
- while ((process = xbt_swag_extract(processes))) {
- old_context = smx_current_context;
- smx_current_context = process->context;
- smx_ctx_java_resume(smx_current_context);
- smx_current_context = old_context;
- }
-}
