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loader-initialized global plugin API:

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struct plugin_api *rb is declared in PLUGIN_HEADER, and pointed to by
__header.api

the loader uses this pointer to initialize rb before calling entry_point

entry_point is no longer passed a pointer to the plugin API

all plugins, and pluginlib functions, are modified to refer to the
global rb

pluginlib functions which only served to copy the API pointer are
removed

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19776 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2009-01-16 10:34:40 +00:00
parent 35677cbc54
commit 23d9812273
179 changed files with 586 additions and 1183 deletions
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11
apps/plugins/helloworld.c
View file

@ -26,22 +26,13 @@
convention, although the actual position doesn't matter */
PLUGIN_HEADER
/* here is a global api struct pointer. while not strictly necessary,
it's nice not to have to pass the api pointer in all function calls
in the plugin */
static const struct plugin_api* rb;
/* this is the plugin entry point */
enum plugin_status plugin_start(const struct plugin_api* api, const void* parameter)
enum plugin_status plugin_start(const void* parameter)
{
/* if you don't use the parameter, you can do like
this to avoid the compiler warning about it */
(void)parameter;
/* if you are using a global api pointer, don't forget to copy it!
otherwise you will get lovely "I04: IllInstr" errors... :-) */
rb = api;
/* now go ahead and have fun! */
rb->splash(HZ*2, "Hello world!");