189 lines
4.1 KiB
C
189 lines
4.1 KiB
C
#include "e.h"
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struct _E_Powersave_Deferred_Action
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{
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void (*func) (void *data);
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const void *data;
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unsigned char delete_me : 1;
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};
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/* local subsystem functions */
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static Eina_Bool _e_powersave_cb_deferred_timer(void *data);
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static void _e_powersave_mode_eval(void);
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static void _e_powersave_event_update_free(void *data __UNUSED__, void *event);
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/* local subsystem globals */
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EAPI int E_EVENT_POWERSAVE_UPDATE = 0;
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static int walking_deferred_actions = 0;
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static Eina_List *deferred_actions = NULL;
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static Ecore_Timer *deferred_timer = NULL;
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static E_Powersave_Mode powersave_mode_min = E_POWERSAVE_MODE_NONE;
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static E_Powersave_Mode powersave_mode_max = E_POWERSAVE_MODE_EXTREME;
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static E_Powersave_Mode powersave_mode = E_POWERSAVE_MODE_LOW;
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static double defer_time = 5.0;
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/* externally accessible functions */
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EINTERN int
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e_powersave_init(void)
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{
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_e_powersave_mode_eval();
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E_EVENT_POWERSAVE_UPDATE = ecore_event_type_new();
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return 1;
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}
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EINTERN int
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e_powersave_shutdown(void)
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{
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return 1;
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}
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EAPI E_Powersave_Deferred_Action *
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e_powersave_deferred_action_add(void (*func) (void *data), const void *data)
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{
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E_Powersave_Deferred_Action *pa;
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pa = calloc(1, sizeof(E_Powersave_Deferred_Action));
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if (!pa) return NULL;
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if (deferred_timer) ecore_timer_del(deferred_timer);
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deferred_timer = ecore_timer_add(defer_time,
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_e_powersave_cb_deferred_timer,
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NULL);
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pa->func = func;
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pa->data = data;
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deferred_actions = eina_list_append(deferred_actions, pa);
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return pa;
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}
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EAPI void
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e_powersave_deferred_action_del(E_Powersave_Deferred_Action *pa)
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{
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if (walking_deferred_actions)
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{
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pa->delete_me = 1;
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return;
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}
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else
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{
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deferred_actions = eina_list_remove(deferred_actions, pa);
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free(pa);
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if (!deferred_actions)
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{
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if (deferred_timer)
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{
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ecore_timer_del(deferred_timer);
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deferred_timer = NULL;
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}
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}
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}
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}
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EAPI void
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e_powersave_mode_min_set(E_Powersave_Mode mode)
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{
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powersave_mode_min = mode;
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e_powersave_mode_set(powersave_mode);
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}
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EAPI void
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e_powersave_mode_max_set(E_Powersave_Mode mode)
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{
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powersave_mode_max = mode;
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e_powersave_mode_set(powersave_mode);
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}
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EAPI void
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e_powersave_mode_set(E_Powersave_Mode mode)
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{
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E_Event_Powersave_Update *ev;
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if (mode < powersave_mode_min) mode = powersave_mode_min;
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else if (mode > powersave_mode_max) mode = powersave_mode_max;
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if (powersave_mode == mode) return;
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printf("CHANGE PW SAVE MODE TO %i / %i\n", (int)mode, E_POWERSAVE_MODE_EXTREME);
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powersave_mode = mode;
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ev = E_NEW(E_Event_Powersave_Update, 1);
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ev->mode = mode;
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ecore_event_add(E_EVENT_POWERSAVE_UPDATE, ev, _e_powersave_event_update_free, NULL);
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_e_powersave_mode_eval();
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}
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EAPI E_Powersave_Mode
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e_powersave_mode_min_get(void)
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{
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return powersave_mode_min;
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}
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EAPI E_Powersave_Mode
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e_powersave_mode_max_get(void)
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{
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return powersave_mode_max;
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}
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EAPI E_Powersave_Mode
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e_powersave_mode_get(void)
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{
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return powersave_mode;
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}
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/* local subsystem functions */
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static Eina_Bool
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_e_powersave_cb_deferred_timer(void *data __UNUSED__)
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{
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E_Powersave_Deferred_Action *pa;
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walking_deferred_actions++;
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EINA_LIST_FREE(deferred_actions, pa)
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{
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if (!pa->delete_me) pa->func((void *)pa->data);
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free(pa);
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}
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walking_deferred_actions--;
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if (!deferred_actions) deferred_timer = NULL;
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return ECORE_CALLBACK_CANCEL;
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}
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static void
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_e_powersave_mode_eval(void)
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{
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double t = 0.0;
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switch (powersave_mode)
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{
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/* FIXME: these values are hardcoded - should be configurable */
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case E_POWERSAVE_MODE_NONE:
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t = 0.25; /* time to defer "power expensive" activities */
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break;
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case E_POWERSAVE_MODE_LOW:
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t = 5.0;
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break;
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case E_POWERSAVE_MODE_MEDIUM:
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t = 60.0;
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break;
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case E_POWERSAVE_MODE_HIGH:
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t = 300.0;
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break;
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case E_POWERSAVE_MODE_EXTREME:
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t = 1200.0;
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break;
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default:
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return;
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break;
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}
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if (t != defer_time)
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{
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if (deferred_timer) ecore_timer_del(deferred_timer);
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deferred_timer = ecore_timer_add(defer_time,
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_e_powersave_cb_deferred_timer,
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NULL);
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defer_time = t;
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}
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}
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static void
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_e_powersave_event_update_free(void *data __UNUSED__, void *event)
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{
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free(event);
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}
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