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Second try: Introduce plugin_crt0.c that every plugin links.

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It handles exit() properly, calling the handler also when the plugin returns
normally (also make exit() more standard compliant while at it).
It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore.

To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it.
In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit().

In future plugin_crt0.c could also handle clearing bss, initializing iram and more.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-08-24 14:30:46 +00:00
parent 3478bc5d6d
commit cae4ae2c71
142 changed files with 372 additions and 341 deletions
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12
apps/plugins/jackpot.c
View file

@ -22,8 +22,9 @@
#include "plugin.h"
#include "lib/pluginlib_actions.h"
#include "lib/picture.h"
#include "lib/pluginlib_exit.h"
PLUGIN_HEADER
const struct button_mapping* plugin_contexts[]={pla_main_ctx};
#define NB_PICTURES 9
@ -109,9 +110,8 @@ void patterns_deinit(struct screen* display)
#endif /* HAVE_LCD_CHARCELLS */
/*Call when the program exit*/
void jackpot_exit(void *parameter)
void jackpot_exit(void)
{
(void)parameter;
#ifdef HAVE_LCD_CHARCELLS
patterns_deinit(rb->screens[SCREEN_MAIN]);
#endif /* HAVE_LCD_CHARCELLS */
@ -298,6 +298,7 @@ enum plugin_status plugin_start(const void* parameter)
int action, i;
struct jackpot game;
(void)parameter;
atexit(jackpot_exit);
rb->srand(*rb->current_tick);
#ifdef HAVE_LCD_CHARCELLS
patterns_init(rb->screens[SCREEN_MAIN]);
@ -323,12 +324,9 @@ enum plugin_status plugin_start(const void* parameter)
break;
default:
if (rb->default_event_handler_ex(action, jackpot_exit, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
exit_on_usb(action);
break;
}
}
jackpot_exit(NULL);
return PLUGIN_OK;
}