SMX_CTX_BASE_T;
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
static int smx_ctx_sysv_factory_finalize(smx_context_factory_t *factory);
static void smx_ctx_sysv_free(smx_context_t context);
-
-static void smx_ctx_sysv_start(smx_context_t context);
-
static void smx_ctx_sysv_stop(smx_context_t context);
-
static void smx_ctx_sysv_suspend(smx_context_t context);
-
-static void
-smx_ctx_sysv_resume(smx_context_t old_context, smx_context_t new_context);
+static void smx_ctx_sysv_resume(smx_context_t new_context);
static void smx_ctx_sysv_wrapper(void);
(*factory)->create_context = smx_ctx_sysv_factory_create_context;
(*factory)->finalize = smx_ctx_sysv_factory_finalize;
(*factory)->free = smx_ctx_sysv_free;
- (*factory)->start = smx_ctx_sysv_start;
(*factory)->stop = smx_ctx_sysv_stop;
(*factory)->suspend = smx_ctx_sysv_suspend;
(*factory)->resume = smx_ctx_sysv_resume;
context->argv = argv;
context->cleanup_func = cleanup_func;
context->cleanup_arg = cleanup_arg;
+
+ makecontext(&((smx_ctx_sysv_t)context)->uc, smx_ctx_sysv_wrapper, 0);
}
return (smx_context_t)context;
}
}
-static void smx_ctx_sysv_start(smx_context_t context)
-{
- makecontext(&((smx_ctx_sysv_t)context)->uc, smx_ctx_sysv_wrapper, 0);
-}
-
static void smx_ctx_sysv_stop(smx_context_t pcontext)
{
smx_ctx_sysv_t context = (smx_ctx_sysv_t)pcontext;
static void smx_ctx_sysv_wrapper()
{
- /*FIXME: I would like to avoid accesing simix_global to get the current
+ /*FIXME: I would like to avoid accessing simix_global to get the current
context by passing it as an argument of the wrapper function. The problem
is that this function is called from smx_ctx_sysv_start, and uses
makecontext for calling it, and the stupid posix specification states that
smx_ctx_sysv_stop((smx_context_t)context);
}
-static void smx_ctx_sysv_suspend(smx_context_t context)
-{
+static void smx_ctx_sysv_suspend(smx_context_t context) {
int rv;
+ ucontext_t maestro_ctx = ((smx_ctx_sysv_t)simix_global->maestro_process->context)->uc;
- smx_ctx_sysv_t prev_context = ((smx_ctx_sysv_t) context)->prev;
-
- ((smx_ctx_sysv_t) context)->prev = NULL;
-
- rv = swapcontext(&((smx_ctx_sysv_t) context)->uc, &prev_context->uc);
+ rv = swapcontext(&((smx_ctx_sysv_t) context)->uc, &maestro_ctx);
xbt_assert0((rv == 0), "Context swapping failure");
}
static void
-smx_ctx_sysv_resume(smx_context_t old_context, smx_context_t new_context)
-{
+smx_ctx_sysv_resume(smx_context_t new_context) {
int rv;
+ smx_ctx_sysv_t maestro = (smx_ctx_sysv_t)simix_global->maestro_process->context;
- ((smx_ctx_sysv_t) new_context)->prev = (smx_ctx_sysv_t)old_context;
-
- rv = swapcontext(&((smx_ctx_sysv_t)old_context)->uc,
- &((smx_ctx_sysv_t)new_context)->uc);
+ rv = swapcontext(&(maestro->uc), &((smx_ctx_sysv_t)new_context)->uc);
xbt_assert0((rv == 0), "Context swapping failure");
}