1 /* context_Ruby - implementation of context switching with/for ruby */
3 /* Copyright (c) 2010, the SimGrid team. All right reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "xbt/function_types.h"
10 #include "xbt/sysdep.h"
12 #include "xbt/asserts.h"
14 #include "bindings/ruby_bindings.h"
16 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(ruby);
19 smx_ctx_ruby_create_context(xbt_main_func_t code,int argc,char** argv,
20 void_f_pvoid_t cleanup_func,void *cleanup_arg);
22 static int smx_ctx_ruby_factory_finalize(smx_context_factory_t *factory);
23 static void smx_ctx_ruby_free(smx_context_t context);
24 static void smx_ctx_ruby_start(smx_context_t context);
25 static void smx_ctx_ruby_stop(smx_context_t context);
26 static void smx_ctx_ruby_suspend(smx_context_t context);
28 smx_ctx_ruby_resume(smx_context_t old_context,smx_context_t new_context);
29 static void smx_ctx_ruby_wrapper(void);
32 void SIMIX_ctx_ruby_factory_init(smx_context_factory_t *factory) {
33 *factory = xbt_new0(s_smx_context_factory_t,1);
35 (*factory)->create_context = smx_ctx_ruby_create_context;
36 (*factory)->finalize = smx_ctx_ruby_factory_finalize;
37 (*factory)->free = smx_ctx_ruby_free;
38 (*factory)->start = smx_ctx_ruby_start;
39 (*factory)->stop = smx_ctx_ruby_stop;
40 (*factory)->suspend = smx_ctx_ruby_suspend;
41 (*factory)->resume = smx_ctx_ruby_resume;
42 (*factory)->name = "smx_ruby_context_factory";
45 DEBUG0("SIMIX_ctx_ruby_factory_init...Done");
48 static int smx_ctx_ruby_factory_finalize(smx_context_factory_t *factory) {
55 smx_ctx_ruby_create_context(xbt_main_func_t code,int argc,char** argv,
56 void_f_pvoid_t cleanup_func,void* cleanup_arg) {
58 smx_ctx_ruby_t context = xbt_new0(s_smx_ctx_ruby_t,1);
60 /*if the user provided a function for the process , then use it
61 Otherwise it's the context for maestro */
63 context->cleanup_func = cleanup_func;
64 context->cleanup_arg = cleanup_arg;
65 context->process = (VALUE)code;
67 DEBUG0("smx_ctx_ruby_create_context...Done");
69 return (smx_context_t) context;
72 static void smx_ctx_ruby_free(smx_context_t context) {
76 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) context;
78 if (ctx_ruby->process){
79 // if the Ruby Process is Alive , Join it
80 // if ( process_isAlive(ctx_ruby->process))
82 process = ctx_ruby->process;
83 ctx_ruby->process = Qnil;
84 process_join(process);
93 DEBUG0("smx_ctx_ruby_free_context...Done");
96 static void smx_ctx_ruby_start(smx_context_t context) {
97 /* Already Done .. Since a Ruby Process is launched within initialization
98 We Start it Within the Initializer ... We Use the Semaphore To Keep
99 The Thread Alive Waitin' For Mutex Signal to Execute The Main*/
103 static void smx_ctx_ruby_stop(smx_context_t context) {
105 VALUE process = Qnil;
106 smx_ctx_ruby_t ctx_ruby,current;
108 if ( context->cleanup_func)
109 (*(context->cleanup_func)) (context->cleanup_arg);
111 ctx_ruby = (smx_ctx_ruby_t) context;
113 // Well , Let's Do The Same as JNI Stoppin' Process
114 if ( simix_global->current_process->iwannadie ) {
115 if( ctx_ruby->process ) {
116 //if the Ruby Process still Alive ,let's Schedule it
117 if ( rb_process_isAlive( ctx_ruby->process ) ) {
118 current = (smx_ctx_ruby_t)simix_global->current_process->context;
119 rb_process_schedule(current->process);
120 process = ctx_ruby->process;
121 // interupt/kill The Ruby Process
122 rb_process_kill_up(process);
126 process = ctx_ruby->process;
127 ctx_ruby->process = Qnil;
129 DEBUG0("smx_ctx_ruby_stop...Done\n");
132 static void smx_ctx_ruby_suspend(smx_context_t context) {
135 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) context;
136 if (ctx_ruby->process)
137 rb_process_unschedule(ctx_ruby->process);
138 DEBUG0("smx_ctx_ruby_unschedule...Done");
140 rb_raise(rb_eRuntimeError,"smx_ctx_ruby_suspend failed");
143 static void smx_ctx_ruby_resume(smx_context_t old_context,smx_context_t new_context) {
144 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) new_context;
145 rb_process_schedule(ctx_ruby->process);
147 DEBUG0("smx_ctx_ruby_schedule...Done");