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Eo do: optimise getting the thread call stack for the main loop thread. 

This may look like an insignificant change, but it doubles the speed of
this function, and since this function is called so often, it actually
improves my benchmarks by around 8%.
This commit is contained in:
Tom Hacohen 2015-10-16 12:21:25 +01:00
parent b61556aa87
commit 3ee44dcef0
1 changed files with 20 additions and 13 deletions
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33
src/lib/eo/eo.c
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@ -375,12 +375,16 @@ _eo_call_stack_free(void *ptr)
free(stack);
}
static Eo_Call_Stack *main_loop_stack = NULL;
#define _EO_CALL_STACK_GET(is_main_loop) ((EINA_LIKELY(is_main_loop)) ? main_loop_stack : _eo_call_stack_get_thread())
static inline Eo_Call_Stack *
_eo_call_stack_get(Eina_Bool is_main_loop)
_eo_call_stack_get_thread(void)
{
static Eo_Call_Stack *main_loop_stack = NULL;
Eo_Call_Stack *stack = is_main_loop ?
main_loop_stack : eina_tls_get(_eo_call_stack_key);
Eo_Call_Stack *stack;
stack = eina_tls_get(_eo_call_stack_key);
if (stack) return stack;
@ -391,11 +395,7 @@ _eo_call_stack_get(Eina_Bool is_main_loop)
return NULL;
}
if (is_main_loop)
{
main_loop_stack = stack;
}
else if (!eina_tls_set(_eo_call_stack_key, stack))
if (!eina_tls_set(_eo_call_stack_key, stack))
{
EINA_LOG_ERR("Could not set eo call stack in TLS key.");
_eo_call_stack_free(stack);
@ -493,7 +493,7 @@ _eo_do_start(const Eo *eo_id, const Eo_Class *cur_klass_id, Eina_Bool is_super,
{
Eina_Bool ret = EINA_TRUE;
Eo_Stack_Frame *fptr, *pfptr;
Eo_Call_Stack *stack = _eo_call_stack_get(eina_main_loop_is());
Eo_Call_Stack *stack = _EO_CALL_STACK_GET(eina_main_loop_is());
if (stack->frame_ptr == stack->last_frame)
_eo_call_stack_resize(stack, EINA_TRUE);
@ -520,7 +520,7 @@ EAPI void
_eo_do_end(void)
{
Eo_Stack_Frame *fptr;
Eo_Call_Stack *stack = _eo_call_stack_get(eina_main_loop_is()); // Is it possible to extract information from the scope ?
Eo_Call_Stack *stack = _EO_CALL_STACK_GET(eina_main_loop_is()); // Is it possible to extract information from the scope ?
fptr = stack->frame_ptr;
@ -549,7 +549,7 @@ _eo_call_resolve(const char *func_name, const Eo_Op op, Eo_Op_Call_Data *call, c
const op_type_funcs *func;
Eina_Bool is_obj;
fptr = _eo_call_stack_get(eina_main_loop_is())->frame_ptr;
fptr = _EO_CALL_STACK_GET(eina_main_loop_is())->frame_ptr;
if (EINA_UNLIKELY(!fptr->o.obj))
return EINA_FALSE;
@ -898,7 +898,7 @@ static Eo *
_eo_add_internal_end(Eo *eo_id)
{
Eo_Stack_Frame *fptr;
Eo_Call_Stack *stack = _eo_call_stack_get(eina_main_loop_is());
Eo_Call_Stack *stack = _EO_CALL_STACK_GET(eina_main_loop_is());
fptr = stack->frame_ptr;
@ -1813,6 +1813,13 @@ eo_init(void)
}
}
main_loop_stack = _eo_call_stack_create();
if (!main_loop_stack)
{
EINA_LOG_ERR("Could not alloc eo call stack.");
return EINA_FALSE;
}
return EINA_TRUE;
}