MEGATRON

F diff --git a/src/backend/targets/C/ast_to_c.c b/src/backend/targets/C/ast_to_c.c
--- a/src/backend/targets/C/ast_to_c.c
+++ b/src/backend/targets/C/ast_to_c.c
  	ast_to_c_print_internal_stuff_for_header(out,translation_unit,options);
  
  	for(i=0;i<translation_unit->number_of_machines;++i)
- 		ast_machine_to_c_make_header_part(out,translation_unit->machines[i]);
+ 		ast_machine_to_c_make_header_part(out,translation_unit->machines[i],options);
  
  
  	if(base_name)
  		fprintf(out,"#include \"%s_external.h\"\n\n",base_name);
  	}
  
- 	ast_machines_to_c_array(out,translation_unit);
- 	ast_to_c_print_internal_stuff_for_body(out,options);
+ 	ast_to_c_print_internal_stuff_for_body(out,translation_unit,options);
  	for(i=0;i<translation_unit->number_of_machines;++i)
- 		ast_machine_to_c_make_body_part(out,translation_unit->machines[i]);
+ 		ast_machine_to_c_make_body_part(out,translation_unit->machines[i],options);
  
  
  	if(base_name)
  
  	if(options->providing_own_queue_implementation)
  	{
- 		fprintf(out,	"extern void machine_push_to_global_event_queue(machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine);\n");
- 		fprintf(out,	"extern void machine_pop_from_global_event_queue();\n");
- 		fprintf(out, 	"extern struct machine_queue_t machine_queue_global;\n");
+ 		if(options->has_context)
+ 		{
+ 			fprintf(out,	"extern void machine_push_to_event_queue(machine_conotext_t *context, machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine);\n");
+ 			fprintf(out,	"extern void machine_pop_from__event_queue(machine_context_t *context);\n");
+ 		}else
+ 		{
+ 			fprintf(out,	"extern void machine_push_to_global_event_queue(machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine);\n");
+ 			fprintf(out,	"extern void machine_pop_from_global_event_queue();\n");
+ 			fprintf(out, 	"extern struct machine_queue_t machine_queue_global;\n");
+ 		}
  	}
  	if(options->providing_own_buffer_implementation)
  	{
  		ast_translation_unit_to_c_print_footer_string(out,base_name,"_EXTERNAL_H");
  	}
  }
- void ast_machine_to_c(FILE *out,struct AST_Machine *machine)
+ void ast_machine_to_c(FILE *out,struct AST_Machine *machine,struct Options *options)
  {
  
  	assert(out!=NULL && machine!=NULL && machine->type==AST_TYPE_MACHINE);
  
  
- 	ast_machine_to_c_make_header_part(out,machine);
- 	ast_machine_to_c_make_body_part(out,machine);
+ 	ast_machine_to_c_make_header_part(out,machine,options);
+ 	ast_machine_to_c_make_body_part(out,machine,options);
  
  }
- void ast_machine_to_c_make_body_part(FILE *out,struct AST_Machine *machine)
+ void ast_machine_to_c_make_body_part(FILE *out,struct AST_Machine *machine,struct Options *options)
  {
  	size_t i;
  	struct State_And_Transitions **table;
  
  	for(i=0;i<machine->states->number_of_states;++i)
  	{
- 		ast_state_to_c_signature(out,machine,machine->states->states[i]);
+ 		ast_state_to_c_signature(out,machine,machine->states->states[i],options);
  		fprintf(out,"\n{\n");
- 		ast_transitions_of_state_to_c(out,machine,table[i]);
+ 		ast_transitions_of_state_to_c(out,machine,table[i],options);
  		fprintf(out,"\n}\n");
  	}
  }
- void ast_machine_to_c_make_header_part(FILE *out,struct AST_Machine *machine)
+ void ast_machine_to_c_make_header_part(FILE *out,struct AST_Machine *machine,struct Options *options)
  {
- 	ast_events_to_c(out,machine);
- 	ast_states_to_c(out,machine);
+ 	ast_events_to_c(out,machine,options);
+ 	ast_states_to_c(out,machine,options);
  }
- void ast_events_to_c(FILE *out,struct AST_Machine *machine)
+ void ast_events_to_c(FILE *out,struct AST_Machine *machine,struct Options *options)
  {
  	size_t i;
  
  	}
  	fprintf(out,"};\n");
  }
- void ast_states_to_c(FILE *out,struct AST_Machine *machine)
+ void ast_states_to_c(FILE *out,struct AST_Machine *machine,struct Options *options)
  {
  	size_t i;
  	assert(out!=NULL && machine!=NULL && machine->type==AST_TYPE_MACHINE);
  	for(i=0;i<machine->states->number_of_states;++i)
  	{
  		fprintf(out,"extern ");
- 		ast_state_to_c_signature(out,machine,machine->states->states[i]);
+ 		ast_state_to_c_signature(out,machine,machine->states->states[i],options);
  		fprintf(out,";\n");
  	}
  }
- void ast_transitions_of_state_to_c(FILE *out,struct AST_Machine *machine,struct State_And_Transitions *vector)
+ void ast_transitions_of_state_to_c(FILE *out,struct AST_Machine *machine,struct State_And_Transitions *vector,struct Options *options)
  {
  	size_t i;
  	short indentation=3;
+ 	const char *context_arrow="";
+ 	if(options->has_context)
+ 		context_arrow="context->";
+ 
  	//fprintf(out,"\tmachine_buffer_t *hold_buffer;\n\thold_buffer=input;\n\n");
  	
  	if(vector->number_of_transitions>0)
  	{
- 		fprintf(out,"\n\tmachine_states_lock=1;\n");
+ 		fprintf(out,"\n\t%smachine_states_lock=1;\n",context_arrow);
  		fprintf(out,"\tswitch(event)\n\t{\n");
  		for(i=0;i<vector->number_of_transitions;++i)
  		{
  			if(vector->transitions[i]->granted)
  			{
  				fprintf(out,"\t\t\tif(");
- 				ast_expression_to_c(out,vector->transitions[i]->granted);
+ 				ast_expression_to_c(out,vector->transitions[i]->granted,options);
  				fprintf(out,")\n\t\t\t{\n");
  				indentation++;
  			}
  
  			//ast_pipeline_to_c(out,3,vector->transitions[i]->pipeline);
- 			ast_statement_to_c(out,indentation,vector->transitions[i]->statement);
+ 			ast_statement_to_c(out,indentation,vector->transitions[i]->statement,options);
  			ast_to_c_print_tabs(out,indentation);
- 			fprintf(out,"machine_states[");
+ 			fprintf(out,"%smachine_states[",context_arrow);
  			ast_token_to_c(out,machine->id);
  			fprintf(out,"]=");
  			ast_state_to_c_function_name(out,machine,vector->transitions[i]->to);
  		fprintf(out,"\t}\n");
  	}
  	fprintf(out,"\tdelete_machine_buffer(input);\n");
- 	fprintf(out,"\n\tmachine_states_lock=0;");
+ 	fprintf(out,"\n\t%smachine_states_lock=0;\n",context_arrow);
  
  }
  /*prints the enum tag for the given machine*/
  	ast_token_to_c(out,machine->id);
  	fprintf(out,"_EVENTS_ENUM");
  }
- void ast_state_to_c_signature(FILE *out,struct AST_Machine *machine,struct AST_State *state)
+ void ast_state_to_c_signature(FILE *out,struct AST_Machine *machine,struct AST_State *state,struct Options *options)
  {
  	fprintf(out,"void ");
  	ast_state_to_c_function_name(out,machine,state);
- 	fprintf(out,"(int event,machine_buffer_t *input)");
+ 	fprintf(out,"(%sint event,machine_buffer_t *input)",(options->has_context?"machine_context_t *context,":""));
  }
  void ast_token_to_c(FILE *out,struct token *token)
  {
  	for(i=0;i<number_of_tabs;++i)
  		fprintf(out,"\t");
  }
- void ast_machines_to_c_array(FILE *out,struct AST_Translation_Unit *translation_unit)
+ void ast_machines_to_c_array(FILE *out,struct AST_Translation_Unit *translation_unit,struct Options *options,short indent)
  {
  	size_t i;
  
- 	fprintf(out,"void (*machine_states[])(int,machine_buffer_t*)={");
- 	for(i=0;i<translation_unit->number_of_machines;++i)
+ 	ast_to_c_print_tabs(out,indent);
+ 	fprintf(out,"void (*machine_states[%zu])(%sint,machine_buffer_t*)",translation_unit->number_of_machines,(options->has_context?"machine_context_t *context,":""));
+ 	if(options->has_context==0)
  	{
- 		ast_state_to_c_function_name(out,translation_unit->machines[i],translation_unit->machines[i]->starting_state);
- 		fprintf(out,",");
- 	}	
- 	fprintf(out,"};\n");
+ 		fprintf(out,"={ ");
+ 		for(i=0;i<translation_unit->number_of_machines;++i)
+ 		{
+ 			ast_state_to_c_function_name(out,translation_unit->machines[i],translation_unit->machines[i]->starting_state);
+ 			fprintf(out,",");
+ 		}	
+ 		fprintf(out,"}");
+ 	}
+ 	fprintf(out,";\n");
  
- 	fprintf(out,"_Bool machine_states_lock=0;\n");
+ 	ast_to_c_print_tabs(out,indent);
+ 	fprintf(out,"_Bool machine_states_lock");
+ 	if(options->has_context==0)
+ 		fprintf(out,"=0");
+ 	fprintf(out,";\n");
  }
  void ast_machines_to_c_enum(FILE *out,struct AST_Translation_Unit *translation_unit)
  {
  	ast_machines_to_c_enum(out,translation_unit);
  	fprintf(out,"\n\n");
  
+ 
  	if(options->providing_own_buffer_implementation)
  	{
  		fprintf(out,"typedef struct machine_buffer_t machine_buffer_t\t\n");
  	{
  		ast_print_machine_buffer_declarations(out);
  	}
+ 
  	if(!options->providing_own_queue_implementation)
- 		ast_to_c_print_event_queue_declaration(out);
+ 		ast_to_c_print_event_struct_queue_declaration(out,options);
+ 	
+ 	/*the context struct should go here*/
+ 	if(options->has_context)
+ 	{
+ 		fprintf(out,"typedef struct machine_context_s machine_context_t;\n");
+ 		fprintf(out, "struct machine_context_s\n{\n");
+ 		ast_machines_to_c_array(out,translation_unit,options,1);
+ 		fprintf(out,"\tstruct machine_queue_t machine_queue;\n");
+ 		fprintf(out, "};\n\n");
+ 		fprintf(out, "void machine_context_init(machine_context_t *context);\n");
+ 		fprintf(out, "void machine_context_destroy(machine_context_t *context);\n");
+ 
+ 	}
+ 	ast_to_c_print_event_functions_queue_declaration(out,options);
  
  
  	ast_to_c_print_comment(out,	"\tuse this function to pass an event to a machine\n"
  					"\tinput can be NULL"
  
  			);
- 	fprintf(out,"extern void push_event_to_machine(enum MACHINES_ENUM machine,int event,machine_buffer_t *input);\n\n");
+ 	if(options->has_context)
+ 		fprintf(out,"extern void push_event_to_machine(machine_context_t *context,enum MACHINES_ENUM machine,int event,machine_buffer_t *input);\n\n");
+ 	else
+ 		fprintf(out,"extern void push_event_to_machine(enum MACHINES_ENUM machine,int event,machine_buffer_t *input);\n\n");
  
  
  
  
- 	ast_to_c_print_comment(out,	"\tthis function creates a buffer structure in the heap\n"
- 					"\tit COPIES the contents of content \n"	
- 					"\tsize is in bytes"
- 			);
- 
  
  }
- void ast_to_c_print_internal_stuff_for_body(FILE *out,struct Options *options)
+ void ast_to_c_print_internal_stuff_for_body(FILE *out,struct AST_Translation_Unit *translation_unit,struct Options *options)
  {
- 	
+ 	const char *context_arrow="";
+ 	const char *context_comma="";
+ 	const char *context="";
+ 	const char *global="_global";
+ 
+ 	if(options->has_context==0)
+ 	{
+ 		ast_machines_to_c_array(out,translation_unit,options,0);
+ 		fprintf(out,"struct machine_queue_t machine_queue_global = { .first=NULL,.last=NULL,.size=0};\n");
+ 	}else
+ 	{
+ 		size_t which_machine;
+ 
+ 		context_comma="context,";
+ 		context="context";
+ 		context_arrow="context->";
+ 		global="";
+ 		fprintf(out, "void machine_context_init(machine_context_t *context)\n{\n\tcontext->machine_queue=(struct machine_queue_t){ .first=NULL,.last=NULL,.size=0};\n");
+ 		for(which_machine=0;which_machine<translation_unit->number_of_machines;++which_machine)
+ 		{
+ 			fprintf(out,"\tcontext->machine_states[%zu]=",which_machine);
+ 			ast_state_to_c_function_name(out,translation_unit->machines[which_machine],translation_unit->machines[which_machine]->starting_state);
+ 			fprintf(out,";\n");
+ 		}
+ 		fprintf(out,"\n}\n");
+ 		fprintf(out,	"void machine_context_destroy(machine_context_t *context)\n{\n\t"
+ 				"\tstruct machine_queue_node_t *hold_node;\n"
+ 				"\thold_node=context->machine_queue.first;\n"
+ 				"\twhile(hold_node!=NULL)\n"
+ 				"\t{\n"
+ 				"\t\tcontext->machine_queue.first=context->machine_queue.first->prev;\n"
+ 				"\t\tfree(hold_node);\n"
+ 				"\t\thold_node=context->machine_queue.first;\n"
+ 				"\t}\n"
+ 				"\n}\n"	
+ 				);
+ 
+ 	}
  	if(!options->providing_own_queue_implementation)
- 		ast_to_c_print_event_queue_definition(out);
+ 		ast_to_c_print_event_queue_definition(out,options);
  	if(!options->providing_own_buffer_implementation)
  		ast_print_machine_buffer_definitions(out);
  
- 	fprintf(out,	"void push_event_to_machine(enum MACHINES_ENUM machine,int event,machine_buffer_t *input)\n"
- 			"{\n"	
+ 	if(options->has_context)
+ 		fprintf(out,"void push_event_to_machine(machine_context_t *context,enum MACHINES_ENUM machine,int event,machine_buffer_t *input)\n");
+ 	else
+ 		fprintf(out,"void push_event_to_machine(enum MACHINES_ENUM machine,int event,machine_buffer_t *input)\n");
+ 
+ 	fprintf(out, "{\n"	
  			"\tif(machine<MACHINES_ENUM_END)"	
  			"\n\t{"	
  	       );
  	if(options->has_mutex)
  		fprintf(out,"\t\tmachine_mutex_lock(input,event,machine);\n");
  	fprintf(out,
- 			"\n\t\tif(machine_states_lock)"
+ 			"\n\t\tif(%smachine_states_lock)"
  			"\n\t\t{"
- 				"\n\t\t\tmachine_push_to_global_event_queue(input,event,machine);"
+ 				"\n\t\t\tmachine_push_to%s_event_queue(%sinput,event,machine);"
  			"\n\t\t}else"
  			"\n\t\t{"
- 			"\n\t\t\tmachine_states[machine](event,input);"	
- 			"\n\t\t\twhile(machine_queue_global.size>0)machine_pop_from_global_event_queue();"
+ 			"\n\t\t\t%smachine_states[machine](%sevent,input);"	
+ 			"\n\t\t\twhile(%smachine_queue%s.size>0)machine_pop_from%s_event_queue(%s);"
  			"\n\t\t}"
  			"\n\t}"	
+ 			,context_arrow,global,context_comma,context_arrow,(options->has_context?"context,":""),context_arrow,global,global,context
  	       );
  	if(options->has_mutex)
  		fprintf(out,"\t\tmachine_mutex_unlock(event,machine);\n");
  	fprintf(out,"%s\n",comment);
  	fprintf(out,"*/\n");
  }
- void ast_statement_to_c(FILE *out,size_t indentation,struct AST *statement)
+ void ast_statement_to_c(FILE *out,size_t indentation,struct AST *statement,struct Options *options)
  {
  	if(statement==NULL)return;
  	if(statement->type==AST_TYPE_PIPELINE)
  		ast_pipeline_to_c(out,indentation,(struct AST_Pipeline*)statement);
  	else if(statement->type==AST_TYPE_IF)
- 		ast_if_to_c(out,indentation,(struct AST_If_Statement*)statement);
+ 		ast_if_to_c(out,indentation,(struct AST_If_Statement*)statement,options);
  	else
  		assert(0);
  
  }
- void ast_if_to_c(FILE *out,size_t indentation,struct AST_If_Statement *statement)
+ void ast_if_to_c(FILE *out,size_t indentation,struct AST_If_Statement *statement,struct Options *options)
  {
  	ast_to_c_print_tabs(out,indentation);
  	fprintf(out,"if");
- 	ast_expression_to_c(out,statement->condition);
+ 	ast_expression_to_c(out,statement->condition,options);
  	fprintf(out,"\n");
  
  	ast_to_c_print_tabs(out,indentation);
  	fprintf(out,"{\n");
  
- 		ast_statement_to_c(out,indentation+1,statement->body);
+ 		ast_statement_to_c(out,indentation+1,statement->body,options);
  
  	ast_to_c_print_tabs(out,indentation);
  	fprintf(out,"}");
  	{
  		fprintf(out,"else{\n");
  
- 		ast_statement_to_c(out,indentation+1,statement->else_statement);
+ 		ast_statement_to_c(out,indentation+1,statement->else_statement,options);
  
  		ast_to_c_print_tabs(out,indentation);
  		fprintf(out,"}");
  	}
  	fprintf(out,"\n");
  }
- void ast_expression_to_c(FILE *out,struct AST *expression)
+ void ast_expression_to_c(FILE *out,struct AST *expression,struct Options *options)
  {
  	fprintf(out,"(");	
  	switch(expression->type)
  	{
  		case AST_TYPE_OP_OR:
- 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->left);
+ 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->left,options);
  			fprintf(out,"||");
- 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->right);
+ 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->right,options);
  			break;
  		case AST_TYPE_OP_NOT:
  			fprintf(out,"!");
- 			ast_expression_to_c(out,AS_UN_EXPR_PTR(expression)->operand);
+ 			ast_expression_to_c(out,AS_UN_EXPR_PTR(expression)->operand,options);
  			break;
  		case AST_TYPE_OP_AND:
- 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->left);
+ 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->left,options);
  			fprintf(out,"&&");
- 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->right);
+ 			ast_expression_to_c(out,AS_BIN_EXPR_PTR(expression)->right,options);
  			break;
  		case AST_TYPE_STATE:
- 			ast_expression_state_to_c(out,(struct AST_State*)expression);
+ 			ast_expression_state_to_c(out,(struct AST_State*)expression,options);
  			break;
  		case AST_TYPE_OP_SELECTOR:
  			assert(!"selector in final product!\n");
  	}
  	fprintf(out,")");	
  }
- void ast_expression_state_to_c(FILE *out,struct AST_State *state)
+ void ast_expression_state_to_c(FILE *out,struct AST_State *state,struct Options *options)
  {
- 	fprintf(out,"machine_states[");
+ 	fprintf(out,"%smachine_states[",(options->has_context?"context->":""));
  	ast_token_to_c(out,state->parent->id);
  	fprintf(out,"]==");
  	ast_state_to_c_function_name(out,state->parent,state);
  
  }
- void ast_to_c_print_event_queue_declaration(FILE *out)
+ void ast_to_c_print_event_struct_queue_declaration(FILE *out,struct Options *options)
  {
+ 	const char *queue="global_event_queue";
  	ast_to_c_print_comment(out,	"\tthis queue is used when an event is received for a machine that is\n"
  					"\tcurrently in transit\n"
  					"\tdoes not guarantee any thread safety,\n"
  			"\tsize_t size;\n"
  			"};\n"
  	       );
- 	fprintf(out,	"extern void machine_push_to_global_event_queue(machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine);\n");
- 	fprintf(out,	"extern void machine_pop_from_global_event_queue();\n");
  }
- void ast_to_c_print_event_queue_definition(FILE *out)
+ void ast_to_c_print_event_functions_queue_declaration(FILE *out,struct Options *options)
+ {
+ 	const char *queue="global_event_queue";
+ 	if(options->has_context)
+ 		queue="event_queue";
+ 	fprintf(out,	"extern void machine_push_to_%s(",queue);
+ 	if(options->has_context)
+ 		fprintf(out,"machine_context_t *context,");
+ 	fprintf(out,"machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine);\n");
+ 	fprintf(out,"extern void machine_pop_from_%s(",queue);
+ 	if(options->has_context)
+ 		fprintf(out,"machine_context_t *context");
+ 	fprintf(out,");\n");
+ }
+ void ast_to_c_print_event_queue_definition(FILE *out,struct Options *options)
  {
- 	fprintf(out, 	"struct machine_queue_t machine_queue_global = { .first=NULL,.last=NULL,.size=0};\n");
- 	fprintf(out,	"void machine_push_to_global_event_queue(machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine)\n"
+ 	const char *queue="machine_queue_global";
+ 	const char *machines_stuff="";
+ 
+ 	fprintf(out,	"void machine_push_to_");
+ 	if(options->has_context)
+ 	{
+ 		fprintf(out,"event_queue(machine_context_t *context,");
+ 		queue="context->machine_queue";
+ 		machines_stuff="context->";
+ 	}else
+ 	{
+ 		fprintf(out,"global_event_queue(");
+ 	}
+ 
+ 	fprintf(out,	"machine_buffer_t *input,int event,enum MACHINES_ENUM target_machine)\n"
  			"{\n"	
- 			"\tif(machine_queue_global.size==0)\n"	
+ 			"\tif(%s.size==0)\n"	
  			"\t{\n"
- 				"\t\tmachine_queue_global.first=machine_queue_global.last=malloc(sizeof(struct machine_queue_node_t));\n"
- 				"\t\tmachine_queue_global.last->input=input;\n"
- 				"\t\tmachine_queue_global.last->event=event;\n"
- 				"\t\tmachine_queue_global.last->target_machine=target_machine;\n"
- 				"\t\tmachine_queue_global.size=1;\n"
+ 				"\t\t%s.first=%s.last=malloc(sizeof(struct machine_queue_node_t));\n"
+ 				"\t\t%s.last->input=input;\n"
+ 				"\t\t%s.last->event=event;\n"
+ 				"\t\t%s.last->target_machine=target_machine;\n"
+ 				"\t\t%s.size=1;\n"
  			"\t}else\n"
  			"\t{\n"
- 				"\t\tmachine_queue_global.last=machine_queue_global.last->prev=malloc(sizeof(struct machine_queue_node_t));\n"
- 				"\t\tmachine_queue_global.last->input=input;\n"
- 				"\t\tmachine_queue_global.last->event=event;\n"
- 				"\t\tmachine_queue_global.last->target_machine=target_machine;\n"
- 				"\t\t++machine_queue_global.size;\n"
+ 				"\t\t%s.last=%s.last->prev=malloc(sizeof(struct machine_queue_node_t));\n"
+ 				"\t\t%s.last->input=input;\n"
+ 				"\t\t%s.last->event=event;\n"
+ 				"\t\t%s.last->target_machine=target_machine;\n"
+ 				"\t\t++%s.size;\n"
  			"\t}\n"
- 			"}\n"	
- 			
+ 			"}\n",queue,queue,queue,queue,queue,queue,queue,queue,queue,queue,queue,queue,queue,queue,queue
  			);
  
- 	fprintf(out,	"void machine_pop_from_global_event_queue()\n"
- 			"{\n"		
+ 	fprintf(out,	"void machine_pop_from");
+ 	if(options->has_context)
+ 	{
+ 		fprintf(out,"_event_queue(machine_context_t *context)\n");
+ 	}else
+ 	{
+ 		fprintf(out,"_global_event_queue()\n");
+ 	}
+ 	fprintf(out,	"{\n"		
  			"\tstruct machine_queue_node_t *hold_node;\n"
- 				"\thold_node=machine_queue_global.first;\n"
- 				"\tmachine_queue_global.first=machine_queue_global.first->prev;\n"
- 				"\tif(--machine_queue_global.size==0)\n"
- 					"\t\tmachine_queue_global.last=NULL;\n"
- 				"\tmachine_states[hold_node->target_machine](hold_node->event,hold_node->input);\n"
+ 				"\thold_node=%s.first;\n"
+ 				"\t%s.first=%s.first->prev;\n"
+ 				"\tif(--%s.size==0)\n"
+ 					"\t\t%s.last=NULL;\n"
+ 				"\t%smachine_states[hold_node->target_machine](%shold_node->event,hold_node->input);\n"
  				"\tfree(hold_node);\n"
- 			"}\n"		
+ 			"}\n",queue,queue,queue,queue,queue,machines_stuff,(options->has_context?"context,":"")
  			);
  }
  void ast_print_machine_buffer_declarations(FILE *out)
  	fprintf(out,"typedef struct machine_buffer_t \n{"
  		       "\n\tsize_t size;\n\tunsigned char buffer[];\n} machine_buffer_t;\n\n");
  
+ 	ast_to_c_print_comment(out,	"\tthis function creates a buffer structure in the heap\n"
+ 					"\tit COPIES the contents of content \n"	
+ 					"\tsize is in bytes"
+ 			);
  	fprintf(out,"extern machine_buffer_t* get_machine_buffer(void *content,size_t size);\n\n");
  	ast_to_c_print_comment(out,"\tfrees the buffer from the heap");
  	fprintf(out,"extern void delete_machine_buffer(machine_buffer_t *buffer);\n\n");
F diff --git a/src/backend/targets/C/ast_to_c.h b/src/backend/targets/C/ast_to_c.h
--- a/src/backend/targets/C/ast_to_c.h
+++ b/src/backend/targets/C/ast_to_c.h
  void ast_translation_unit_to_c_print_external_commands(FILE *out,char *base_name,struct AST_Translation_Unit *translation_unit);
  
  void ast_translation_unit_to_c(FILE *out,struct AST_Translation_Unit *translation_unit);
- void ast_machine_to_c(FILE *out,struct AST_Machine *machine);
- void ast_machine_to_c_make_header_part(FILE *out,struct AST_Machine *machine);
- void ast_machine_to_c_make_body_part(FILE *out,struct AST_Machine *machine);
+ void ast_machine_to_c(FILE *out,struct AST_Machine *machine,struct Options *options);
+ void ast_machine_to_c_make_header_part(FILE *out,struct AST_Machine *machine,struct Options *options);
+ void ast_machine_to_c_make_body_part(FILE *out,struct AST_Machine *machine,struct Options *options);
  
  
- void ast_events_to_c(FILE *out,struct AST_Machine *machine);
- void ast_states_to_c(FILE *out,struct AST_Machine *machine);
+ void ast_events_to_c(FILE *out,struct AST_Machine *machine,struct Options *options);
+ void ast_states_to_c(FILE *out,struct AST_Machine *machine,struct Options *options);
  
  void ast_command_to_c(FILE *out,struct AST_Command *command,char *hold_buffer);
  
- /*note the ordering*/
+ /*note the ordering of parameters*/
  void ast_command_to_c_extern_declaration(struct AST_Command *command,FILE *out);
  
  void ast_pipeline_to_c(FILE *out,size_t indentation,struct AST_Pipeline *pipeline);
  
- void ast_transitions_of_state_to_c(FILE *out,struct AST_Machine *machine,struct State_And_Transitions *vector);
+ void ast_transitions_of_state_to_c(FILE *out,struct AST_Machine *machine,struct State_And_Transitions *vector,struct Options *options);
  void ast_token_to_c(FILE *out,struct token *token);
  void ast_machine_enum_tag(FILE *out,struct AST_Machine *machine);
- void ast_state_to_c_signature(FILE *out,struct AST_Machine *machine,struct AST_State *state);
+ void ast_state_to_c_signature(FILE *out,struct AST_Machine *machine,struct AST_State *state,struct Options *options);
  void ast_state_to_c_function_name(FILE *out,struct AST_Machine *machine,struct AST_State *state);
- void ast_machines_to_c_array(FILE *out,struct AST_Translation_Unit *translation_unit);
+ void ast_machines_to_c_array(FILE *out,struct AST_Translation_Unit *translation_unit,struct Options *options,short indent);
  void ast_machines_to_c_enum(FILE *out,struct AST_Translation_Unit *translation_unit);
  void ast_event_to_c_enum(FILE *out,struct AST_Machine *machine,struct AST_Event *event);
  
- void ast_statement_to_c(FILE *out,size_t indentation,struct AST *statement);
- void ast_if_to_c(FILE *out,size_t indentation,struct AST_If_Statement *statement);
- void ast_expression_to_c(FILE *out,struct AST *expression);
- void ast_expression_state_to_c(FILE *out,struct AST_State *state);
+ void ast_statement_to_c(FILE *out,size_t indentation,struct AST *statement,struct Options *options);
+ void ast_if_to_c(FILE *out,size_t indentation,struct AST_If_Statement *statement,struct Options *options);
+ void ast_expression_to_c(FILE *out,struct AST *expression,struct Options *options);
+ void ast_expression_state_to_c(FILE *out,struct AST_State *state,struct Options *options);
  
  void ast_to_c_print_internal_stuff_for_header(FILE *out,struct AST_Translation_Unit *translation_unit,struct Options *options);
- void ast_to_c_print_internal_stuff_for_body(FILE *out,struct Options *options);
+ void ast_to_c_print_internal_stuff_for_body(FILE *out,struct AST_Translation_Unit *translation_unit,struct Options *options);
  void ast_to_c_print_comment(FILE *out,char *comment);
  
  
- void ast_to_c_print_event_queue_declaration(FILE *out);
- void ast_to_c_print_event_queue_definition(FILE *out);
+ void ast_to_c_print_event_struct_queue_declaration(FILE *out,struct Options *options);
+ void ast_to_c_print_event_functions_queue_declaration(FILE *out,struct Options *options);
+ void ast_to_c_print_event_queue_definition(FILE *out,struct Options *options);
  
  void ast_print_machine_buffer_declarations(FILE *out);
  void ast_print_machine_buffer_definitions(FILE *out);
F diff --git a/src/program/program.c b/src/program/program.c
--- a/src/program/program.c
+++ b/src/program/program.c
  	ret->providing_own_queue_implementation=0;
  	ret->providing_own_buffer_implementation=0;
  	ret->has_mutex=0;
+ 	ret->has_context=0; /*inline is the default*/
  
  	for(i=0;i<argc;++i)
  	{
  			ret->providing_own_buffer_implementation=1;
  		else if(!strncmp(argv[i],"--extern-mutex",sizeof("--extern-mutex")))
  			ret->has_mutex=1;
+ 		else if(!strncmp(argv[i],"--with-context",sizeof("--extern-mutex")))
+ 			ret->has_context=1;
+ 		else if(!strncmp(argv[i],"--help",sizeof("--help")) || !strncmp(argv[i],"-h",sizeof("-h")))
+ 		{
+ 			printf("Wonky automata options:\n"
+ 				"--print-tokens Prints the tokens of the programs, used for debugging\n"
+ 				"--print-ast Prints the ast of the program, used for debugging\n"
+ 				"--print-c Transpiles to C and outputs the result to stdout ( default )\n"
+ 				"--extern-queue delegates the queue implementation to user\n"
+ 				"--extern-buffer delegates the buffer implementation to the user\n"
+ 				"--extern-mutex delegates the mutex implementation to the user and generates mutex guards\n"
+ 				"--with-context have a context struct, so you can have multiple instances of the automata\n"
+ 				"\n");
+ 				exit(0);
+ 		}
  		else if(!strncmp(argv[i],"-o",sizeof("-o")) || !strncmp(argv[i],"--output",sizeof("--output")))
  		{
  			if(++i<argc)
F diff --git a/src/program/program.h b/src/program/program.h
--- a/src/program/program.h
+++ b/src/program/program.h
  	int providing_own_queue_implementation:1;
  	int providing_own_buffer_implementation:1;
  	int has_mutex:1;
+ 	int has_context:1;
  	char *src_name;
  	char *output_name;
  };