-/* $Id$ */
-
/* context_lua - implementation of context switching with lua coroutines */
-/* Copyright (c) 2004-2008 the SimGrid team. All right reserved */
+/* Copyright (c) 2010 the SimGrid team. All right 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 "private.h"
-//#include "context_sysv_config.h" /* loads context system definitions */
-//#include "portable.h"
-//#include <ucontext.h> /* context relative declarations */
+#include "smx_context_private.h"
#include <lua5.1/lauxlib.h>
#include <lua5.1/lualib.h>
/* lower this if you want to reduce the memory consumption */
//#define STACK_SIZE 128*1024
-//#ifdef HAVE_VALGRIND_VALGRIND_H
-//# include <valgrind/valgrind.h>
-//#endif /* HAVE_VALGRIND_VALGRIND_H */
-
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(lua);
-typedef struct s_smx_ctx_sysv {
- SMX_CTX_BASE_T;
-#ifdef KILLME
- /* Ucontext info */
- ucontext_t uc; /* the thread that execute the code */
- char stack[STACK_SIZE]; /* the thread stack size */
- struct s_smx_ctx_sysv *prev; /* the previous process */
-#ifdef HAVE_VALGRIND_VALGRIND_H
- unsigned int valgrind_stack_id; /* the valgrind stack id */
-#endif
-#endif /* KILLME */
+typedef struct s_smx_ctx_lua {
+ s_smx_ctx_sysv_t super; /* Fields of super implementation */
/* lua state info */
lua_State *state;
}
void SIMIX_ctx_lua_factory_init(smx_context_factory_t *factory) {
- *factory = xbt_new0(s_smx_context_factory_t, 1);
+ smx_ctx_base_factory_init(factory);
(*factory)->create_context = smx_ctx_lua_create_context;
(*factory)->finalize = smx_ctx_lua_factory_finalize;
static int smx_ctx_lua_factory_finalize(smx_context_factory_t * factory) {
lua_close(lua_state);
- free(*factory);
- *factory = NULL;
- return 0;
+ return smx_ctx_base_factory_finalize(factory);
}
static smx_context_t
smx_ctx_lua_create_context(xbt_main_func_t code, int argc, char** argv,
void_f_pvoid_t cleanup_func, void* cleanup_arg) {
- smx_ctx_lua_t context = xbt_new0(s_smx_ctx_lua_t, 1);
+ smx_ctx_lua_t context = (smx_ctx_lua_t)smx_ctx_sysv_create_context_sized
+ (sizeof(s_smx_ctx_lua_t), code,argc,argv,cleanup_func,cleanup_arg);
+
/* If the user provided a function for the process then use it
otherwise is the context for maestro */
if (code){
- context->code = code;
-
- context->argc = argc;
- context->argv = argv;
- context->cleanup_func = cleanup_func;
- context->cleanup_arg = cleanup_arg;
INFO1("Created context for function %s",argv[0]);
/* start the coroutine in charge of running that code */
context->ref = luaL_ref(lua_state, LUA_REGISTRYINDEX); // protect the thread from being garbage collected
/* Start the co-routine */
- lua_getglobal(context->state,context->argv[0]);
+ lua_getglobal(context->state,context->super.super.argv[0]);
xbt_assert1(lua_isfunction(context->state,-1),
- "The lua function %s does not seem to exist",context->argv[0]);
+ "The lua function %s does not seem to exist",context->super.super.argv[0]);
// push arguments onto the stack
int i;
- for(i=1;i<context->argc;i++)
- lua_pushstring(context->state,context->argv[i]);
+ for(i=1;i<context->super.super.argc;i++)
+ lua_pushstring(context->state,context->super.super.argv[i]);
// Call the function (in resume)
- context->nargs = context->argc-1;
+ context->nargs = context->super.super.argc-1;
} else {
INFO0("Created context for maestro");
return (smx_context_t)context;
}
-static void smx_ctx_lua_free(smx_context_t pcontext)
-{
- int i;
- smx_ctx_lua_t context = (smx_ctx_lua_t)pcontext;
+static void smx_ctx_lua_free(smx_context_t context) {
if (context){
DEBUG1("smx_ctx_lua_free_context(%p)",context);
- /* free argv */
- if (context->argv) {
- for (i = 0; i < context->argc; i++)
- if (context->argv[i])
- free(context->argv[i]);
-
- free(context->argv);
- }
-
/* let the lua garbage collector reclaim the thread used for the coroutine */
- luaL_unref(lua_state,LUA_REGISTRYINDEX,context->ref );
-
- free(context);
- context = NULL;
+ luaL_unref(lua_state,LUA_REGISTRYINDEX,((smx_ctx_lua_t)context)->ref );
}
+
+ smx_ctx_base_free(context);
}
static void smx_ctx_lua_stop(smx_context_t pcontext) {
smx_ctx_lua_t context = (smx_ctx_lua_t)pcontext;
- INFO1("Stopping '%s' (nothing to do)",context->argv[0]);
- if (context->cleanup_func)
- (*context->cleanup_func) (context->cleanup_arg);
+ INFO1("Stopping '%s' (nothing to do)",context->super.super.argv[0]);
+ if (context->super.super.cleanup_func)
+ (*context->super.super.cleanup_func) (context->super.super.cleanup_arg);
// smx_ctx_lua_suspend(pcontext);
}
static void smx_ctx_lua_suspend(smx_context_t pcontext) {
smx_ctx_lua_t context = (smx_ctx_lua_t)pcontext;
- DEBUG1("Suspending '%s' (calling lua_yield)",context->argv[0]);
+ DEBUG1("Suspending '%s' (calling lua_yield)",context->super.super.argv[0]);
//lua_yield(context->state,0);
lua_getglobal(context->state,"doyield");
static void
smx_ctx_lua_resume(smx_context_t new_context) {
smx_ctx_lua_t context = (smx_ctx_lua_t)new_context;
- DEBUG1("Resuming %s",context->argv[0]);
+ DEBUG1("Resuming %s",context->super.super.argv[0]);
int ret = lua_resume(context->state,context->nargs);
- INFO3("Function %s yielded back with value %d %s",context->argv[0],ret,(ret==LUA_YIELD?"(ie, LUA_YIELD)":""));
+ INFO3("Function %s yielded back with value %d %s",context->super.super.argv[0],ret,(ret==LUA_YIELD?"(ie, LUA_YIELD)":""));
if (lua_isstring(context->state,-1))
- INFO2("Result of %s seem to be '%s'",context->argv[0],luaL_checkstring(context->state,-1));
+ INFO2("Result of %s seem to be '%s'",context->super.super.argv[0],luaL_checkstring(context->state,-1));
context->nargs=0;
}
