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

Browse source 
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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13
apps/plugins/text_viewer/text_viewer.c
View file

@ -21,11 +21,12 @@
*
****************************************************************************/
#include "plugin.h"
#include "lib/pluginlib_exit.h"
#include "tv_action.h"
#include "tv_button.h"
#include "tv_preferences.h"
PLUGIN_HEADER
enum plugin_status plugin_start(const void* file)
{
@ -56,6 +57,7 @@ enum plugin_status plugin_start(const void* file)
return PLUGIN_ERROR;
}
atexit(tv_exit);
while (!done) {
#ifdef HAVE_LCD_BITMAP
if (rb->global_settings->statusbar != STATUSBAR_OFF && preferences->statusbar)
@ -79,12 +81,12 @@ enum plugin_status plugin_start(const void* file)
if (res != TV_MENU_RESULT_EXIT_MENU)
{
tv_exit(NULL);
done = true;
if (res == TV_MENU_RESULT_ATTACHED_USB)
return PLUGIN_USB_CONNECTED;
else if (res == TV_MENU_RESULT_ERROR)
return PLUGIN_ERROR;
else
done = true;
}
}
break;
@ -195,7 +197,6 @@ enum plugin_status plugin_start(const void* file)
#ifdef TV_QUIT2
case TV_QUIT2:
#endif
tv_exit(NULL);
done = true;
break;
@ -204,9 +205,7 @@ enum plugin_status plugin_start(const void* file)
break;
default:
if (rb->default_event_handler_ex(button, tv_exit, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
exit_on_usb(button);
display_update = false;
break;
}