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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
Download patch file Download diff file Expand all files Collapse all files

9
apps/plugins/nim.c
View file

@ -48,7 +48,7 @@ V1.2 : 2003-07-30
take a match. Later you are obliged to take at least one.)
*/
PLUGIN_HEADER
/*Pattern for the game*/
static unsigned char smile[]={0x00, 0x11, 0x04, 0x04, 0x00, 0x11, 0x0E}; /* :-) */
@ -144,6 +144,7 @@ enum plugin_status plugin_start(const void* parameter)
int x,v,min;
bool ok;
bool go;
atexit(nim_exit);
/* if you don't use the parameter, you can do like
this to avoid the compiler warning about it */
@ -193,7 +194,6 @@ enum plugin_status plugin_start(const void* parameter)
{
case BUTTON_STOP|BUTTON_REL:
go = true;
nim_exit(NULL);
return PLUGIN_OK;
break;
@ -214,9 +214,7 @@ enum plugin_status plugin_start(const void* parameter)
break;
default:
if (rb->default_event_handler_ex(button, nim_exit,
NULL) == SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
exit_on_usb(button);
break;
}
display_first_line(x);
@ -291,7 +289,6 @@ enum plugin_status plugin_start(const void* parameter)
min=1;
}
}
nim_exit(NULL);
return PLUGIN_OK;
}
#endif