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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 it makes 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 it 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@27862 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-08-23 16:56:49 +00:00
parent 8106c9dc64
commit abdc5935be
142 changed files with 372 additions and 341 deletions
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14
apps/plugins/demystify.c
View file

@ -22,11 +22,12 @@
****************************************************************************/
#include "plugin.h"
#include "lib/pluginlib_exit.h"
#ifdef HAVE_LCD_BITMAP
#include "lib/pluginlib_actions.h"
#include "lib/helper.h"
PLUGIN_HEADER
#define DEFAULT_WAIT_TIME 3
#define DEFAULT_NB_POLYGONS 7
@ -259,10 +260,8 @@ void polygons_draw(struct polygon_fifo * polygons, struct screen * display)
}
}
void cleanup(void *parameter)
void cleanup(void)
{
(void)parameter;
backlight_use_settings();
#ifdef HAVE_REMOTE_LCD
remote_backlight_use_settings();
@ -394,7 +393,6 @@ int plugin_main(void)
switch(action)
{
case DEMYSTIFY_QUIT:
cleanup(NULL);
return PLUGIN_OK;
case DEMYSTIFY_ADD_POLYGON:
@ -421,9 +419,7 @@ int plugin_main(void)
break;
default:
if (rb->default_event_handler_ex(action, cleanup, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
exit_on_usb(action);
break;
}
}
@ -436,6 +432,8 @@ enum plugin_status plugin_start(const void* parameter)
int ret;
(void)parameter;
atexit(cleanup);
#if LCD_DEPTH > 1
rb->lcd_set_backdrop(NULL);
#endif