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"
17 smx_ctx_ruby_create_context(xbt_main_func_t code,int argc,char** argv,
18 void_f_pvoid_t cleanup_func,void *cleanup_arg);
20 static int smx_ctx_ruby_factory_finalize(smx_context_factory_t *factory);
21 static void smx_ctx_ruby_free(smx_context_t context);
22 static void smx_ctx_ruby_start(smx_context_t context);
23 static void smx_ctx_ruby_stop(smx_context_t context);
24 static void smx_ctx_ruby_suspend(smx_context_t context);
26 smx_ctx_ruby_resume(smx_context_t old_context,smx_context_t new_context);
27 static void smx_ctx_ruby_wrapper(void);
30 void SIMIX_ctx_ruby_factory_init(smx_context_factory_t *factory) {
31 *factory = xbt_new0(s_smx_context_factory_t,1);
33 (*factory)->create_context = smx_ctx_ruby_create_context;
34 (*factory)->finalize = smx_ctx_ruby_factory_finalize;
35 (*factory)->free = smx_ctx_ruby_free;
36 (*factory)->start = smx_ctx_ruby_start;
37 (*factory)->stop = smx_ctx_ruby_stop;
38 (*factory)->suspend = smx_ctx_ruby_suspend;
39 (*factory)->resume = smx_ctx_ruby_resume;
40 (*factory)->name = "smx_ruby_context_factory";
43 DEBUG0("SIMIX_ctx_ruby_factory_init...Done");
46 static int smx_ctx_ruby_factory_finalize(smx_context_factory_t *factory) {
53 smx_ctx_ruby_create_context(xbt_main_func_t code,int argc,char** argv,
54 void_f_pvoid_t cleanup_func,void* cleanup_arg) {
56 smx_ctx_ruby_t context = xbt_new0(s_smx_ctx_ruby_t,1);
58 /*if the user provided a function for the process , then use it
59 Otherwise it's the context for maestro */
61 context->cleanup_func = cleanup_func;
62 context->cleanup_arg = cleanup_arg;
63 context->process = (VALUE)code;
65 DEBUG0("smx_ctx_ruby_create_context...Done");
67 return (smx_context_t) context;
70 static void smx_ctx_ruby_free(smx_context_t context) {
74 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) context;
76 if (ctx_ruby->process){
77 // if the Ruby Process is Alive , Join it
78 // if ( process_isAlive(ctx_ruby->process))
80 process = ctx_ruby->process;
81 ctx_ruby->process = Qnil;
82 process_join(process);
91 DEBUG0("smx_ctx_ruby_free_context...Done");
94 static void smx_ctx_ruby_start(smx_context_t context) {
95 /* Already Done .. Since a Ruby Process is launched within initialization
96 We Start it Within the Initializer ... We Use the Semaphore To Keep
97 The Thread Alive Waitin' For Mutex Signal to Execute The Main*/
101 static void smx_ctx_ruby_stop(smx_context_t context) {
103 VALUE process = Qnil;
104 smx_ctx_ruby_t ctx_ruby,current;
106 if ( context->cleanup_func)
107 (*(context->cleanup_func)) (context->cleanup_arg);
109 ctx_ruby = (smx_ctx_ruby_t) context;
111 // Well , Let's Do The Same as JNI Stoppin' Process
112 if ( simix_global->current_process->iwannadie ) {
113 if( ctx_ruby->process ) {
114 //if the Ruby Process still Alive ,let's Schedule it
115 if ( rb_process_isAlive( ctx_ruby->process ) ) {
116 current = (smx_ctx_ruby_t)simix_global->current_process->context;
117 rb_process_schedule(current->process);
118 process = ctx_ruby->process;
119 // interupt/kill The Ruby Process
120 rb_process_kill_up(process);
124 process = ctx_ruby->process;
125 ctx_ruby->process = Qnil;
127 DEBUG0("smx_ctx_ruby_stop...Done\n");
130 static void smx_ctx_ruby_suspend(smx_context_t context) {
133 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) context;
134 if (ctx_ruby->process)
135 rb_process_unschedule(ctx_ruby->process);
136 DEBUG0("smx_ctx_ruby_unschedule...Done");
138 rb_raise(rb_eRuntimeError,"smx_ctx_ruby_suspend failed");
141 static void smx_ctx_ruby_resume(smx_context_t old_context,smx_context_t new_context) {
142 smx_ctx_ruby_t ctx_ruby = (smx_ctx_ruby_t) new_context;
143 rb_process_schedule(ctx_ruby->process);
145 DEBUG0("smx_ctx_ruby_schedule...Done");