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RetroArch/runloop_data.c
twinaphex 1c406bc098 Add rarch_main_data_pending_scan_finished and other mechanisms 
so that the call to menu_environment_cb gets made on main thread
2015-07-09 02:31:46 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2015 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <retro_miscellaneous.h>
#ifdef HAVE_THREADS
#include <rthreads/rthreads.h>
#endif
#include "general.h"
#include "runloop_data.h"
#include "tasks/tasks.h"
#include "input/input_overlay.h"
#ifdef HAVE_MENU
#include "menu/menu.h"
#include "menu/menu_entries.h"
#include "menu/menu_input.h"
#endif
enum
{
THREAD_CODE_INIT = 0,
THREAD_CODE_DEINIT,
THREAD_CODE_ALIVE
} thread_code_enum;
typedef struct data_runloop
{
bool inited;
#ifdef HAVE_THREADS
bool thread_inited;
unsigned thread_code;
bool alive;
slock_t *lock;
slock_t *cond_lock;
scond_t *cond;
sthread_t *thread;
#endif
} data_runloop_t;
static char data_runloop_msg[PATH_MAX_LENGTH];
static data_runloop_t *g_data_runloop;
static data_runloop_t *rarch_main_data_get_ptr(void)
{
return g_data_runloop;
}
#ifdef HAVE_THREADS
static void data_runloop_thread_deinit(data_runloop_t *runloop)
{
if (!runloop->thread_inited)
{
slock_lock(runloop->cond_lock);
runloop->alive = false;
scond_signal(runloop->cond);
slock_unlock(runloop->cond_lock);
sthread_join(runloop->thread);
slock_free(runloop->lock);
slock_free(runloop->cond_lock);
rarch_main_data_overlay_thread_uninit();
scond_free(runloop->cond);
}
}
#endif
void rarch_main_data_deinit(void)
{
data_runloop_t *runloop = rarch_main_data_get_ptr();
if (!runloop)
return;
#ifdef HAVE_THREADS
if (runloop->thread_inited)
{
data_runloop_thread_deinit(runloop);
runloop->thread_inited = false;
runloop->thread_code = THREAD_CODE_DEINIT;
}
#endif
runloop->inited = false;
}
static void rarch_main_data_free_internal(void)
{
data_runloop_t *runloop = rarch_main_data_get_ptr();
if (!runloop)
return;
if (runloop)
free(runloop);
runloop = NULL;
}
void rarch_main_data_free(void)
{
rarch_main_data_nbio_uninit();
#ifdef HAVE_NETWORKING
rarch_main_data_http_uninit();
#endif
#ifdef HAVE_LIBRETRODB
rarch_main_data_db_uninit();
#endif
rarch_main_data_free_internal();
}
static void data_runloop_iterate(bool is_thread)
{
rarch_main_data_nbio_iterate (is_thread);
#ifdef HAVE_RPNG
rarch_main_data_nbio_image_iterate (is_thread);
#endif
#ifdef HAVE_OVERLAY
rarch_main_data_overlay_iterate (is_thread);
#endif
#ifdef HAVE_NETWORKING
rarch_main_data_http_iterate (is_thread);
#endif
#ifdef HAVE_LIBRETRODB
rarch_main_data_db_iterate (is_thread);
#endif
}
bool rarch_main_data_active(void)
{
bool active = false;
#ifdef HAVE_LIBRETRODB
if (rarch_main_data_db_is_active())
active = true;
#endif
#ifdef HAVE_OVERLAY
if (input_overlay_is_active())
active = true;
#endif
if (rarch_main_data_nbio_image_get_handle())
active = true;
if (rarch_main_data_nbio_get_handle())
active = true;
#ifdef HAVE_NETWORKING
if (rarch_main_data_http_get_handle())
active = true;
if (rarch_main_data_http_conn_get_handle())
active = true;
#endif
return active;
}
#ifdef HAVE_THREADS
static void data_thread_loop(void *data)
{
data_runloop_t *runloop = (data_runloop_t*)data;
RARCH_LOG("[Data Thread]: Initializing data thread.\n");
slock_lock(runloop->lock);
while (!runloop->thread_inited)
scond_wait(runloop->cond, runloop->lock);
slock_unlock(runloop->lock);
RARCH_LOG("[Data Thread]: Starting data thread.\n");
while (runloop->alive)
{
slock_lock(runloop->lock);
if (!runloop->alive)
break;
data_runloop_iterate(true);
if (!rarch_main_data_active())
rarch_sleep(10);
slock_unlock(runloop->lock);
}
RARCH_LOG("[Data Thread]: Stopping data thread.\n");
}
#endif
#ifdef HAVE_THREADS
static void rarch_main_data_thread_init(void)
{
data_runloop_t *runloop = rarch_main_data_get_ptr();
if (!runloop)
return;
runloop->lock = slock_new();
runloop->cond_lock = slock_new();
runloop->cond = scond_new();
#ifdef HAVE_OVERLAY
rarch_main_data_overlay_thread_init();
#endif
runloop->thread = sthread_create(data_thread_loop, runloop);
if (!runloop->thread)
goto error;
slock_lock(runloop->lock);
runloop->thread_inited = true;
runloop->alive = true;
runloop->thread_code = THREAD_CODE_ALIVE;
slock_unlock(runloop->lock);
return;
error:
data_runloop_thread_deinit(runloop);
}
#endif
void rarch_main_data_iterate(void)
{
data_runloop_t *runloop = rarch_main_data_get_ptr();
settings_t *settings = config_get_ptr();
(void)settings;
#ifdef HAVE_THREADS
if (settings->menu.threaded_data_runloop_enable)
{
switch (runloop->thread_code)
{
case THREAD_CODE_INIT:
rarch_main_data_thread_init();
break;
case THREAD_CODE_DEINIT:
case THREAD_CODE_ALIVE:
break;
}
}
#endif
#ifdef HAVE_OVERLAY
rarch_main_data_overlay_image_upload_iterate(false);
#endif
#ifdef HAVE_RPNG
rarch_main_data_nbio_image_upload_iterate(false);
#endif
#ifdef HAVE_MENU
#ifdef HAVE_LIBRETRODB
if (rarch_main_data_db_pending_scan_finished())
menu_environment_cb(MENU_ENVIRON_RESET_HORIZONTAL_LIST, NULL);
#endif
#endif
if (data_runloop_msg[0] != '\0')
{
rarch_main_msg_queue_push(data_runloop_msg, 1, 10, true);
data_runloop_msg[0] = '\0';
}
#ifdef HAVE_MENU
menu_entries_refresh(MENU_ACTION_REFRESH);
#endif
#ifdef HAVE_THREADS
if (settings->menu.threaded_data_runloop_enable && runloop->alive)
return;
#endif
data_runloop_iterate(false);
}
static data_runloop_t *rarch_main_data_new(void)
{
data_runloop_t *runloop = (data_runloop_t*)calloc(1, sizeof(data_runloop_t));
if (!runloop)
return NULL;
#ifdef HAVE_THREADS
runloop->thread_inited = false;
runloop->alive = false;
#endif
runloop->inited = true;
return runloop;
}
void rarch_main_data_clear_state(void)
{
rarch_main_data_deinit();
rarch_main_data_free();
g_data_runloop = rarch_main_data_new();
if (!g_data_runloop)
return;
rarch_main_data_nbio_init();
#ifdef HAVE_NETWORKING
rarch_main_data_http_init();
#endif
#ifdef HAVE_LIBRETRODB
rarch_main_data_db_init();
#endif
}
void rarch_main_data_init_queues(void)
{
#ifdef HAVE_NETWORKING
rarch_main_data_http_init_msg_queue();
#endif
rarch_main_data_nbio_init_msg_queue();
#ifdef HAVE_LIBRETRODB
rarch_main_data_db_init_msg_queue();
#endif
}
void rarch_main_data_msg_queue_push(unsigned type,
const char *msg, const char *msg2,
unsigned prio, unsigned duration, bool flush)
{
char new_msg[PATH_MAX_LENGTH] = {0};
msg_queue_t *queue = NULL;
switch(type)
{
case DATA_TYPE_NONE:
break;
case DATA_TYPE_FILE:
queue = rarch_main_data_nbio_get_msg_queue_ptr();
if (!queue)
return;
snprintf(new_msg, sizeof(new_msg), "%s|%s", msg, msg2);
break;
case DATA_TYPE_IMAGE:
queue = rarch_main_data_nbio_image_get_msg_queue_ptr();
if (!queue)
return;
snprintf(new_msg, sizeof(new_msg), "%s|%s", msg, msg2);
break;
#ifdef HAVE_NETWORKING
case DATA_TYPE_HTTP:
queue = rarch_main_data_http_get_msg_queue_ptr();
snprintf(new_msg, sizeof(new_msg), "%s|%s", msg, msg2);
break;
#endif
#ifdef HAVE_OVERLAY
case DATA_TYPE_OVERLAY:
snprintf(new_msg, sizeof(new_msg), "%s|%s", msg, msg2);
break;
#endif
#ifdef HAVE_LIBRETRODB
case DATA_TYPE_DB:
queue = rarch_main_data_db_get_msg_queue_ptr();
snprintf(new_msg, sizeof(new_msg), "%s|%s", msg, msg2);
break;
#endif
}
if (!queue)
return;
if (flush)
msg_queue_clear(queue);
msg_queue_push(queue, new_msg, prio, duration);
}
void data_runloop_osd_msg(const char *msg, size_t len)
{
strlcpy(data_runloop_msg, msg, len);
}
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