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score: _User_extensions_Handler_initialization()

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Simplify  _User_extensions_Handler_initialization().
This commit is contained in:
Sebastian Huber
2016-04-12 17:02:27 +02:00
parent 362722795a
commit 0a97ba5bc1
1 changed files with 25 additions and 30 deletions
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55
cpukit/score/src/userext.c
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@@ -23,37 +23,32 @@
#include <rtems/score/userextimpl.h>
#include <rtems/score/wkspace.h>
typedef struct {
User_extensions_Switch_control *switch_control;
} User_extensions_Switch_context;
static void _User_extensions_Switch_visitor(
Thread_Control *executing,
void *arg,
const User_extensions_Table *callouts
)
{
User_extensions_thread_switch_extension callout = callouts->thread_switch;
if ( callout != NULL ) {
User_extensions_Switch_context *ctx = arg;
User_extensions_Switch_control *ctrl = ctx->switch_control;
_Chain_Append_unprotected( &_User_extensions_Switches_list, &ctrl->Node );
ctrl->thread_switch = callout;
ctx->switch_control = ctrl + 1;
}
}
void _User_extensions_Handler_initialization(void)
{
User_extensions_Switch_control *initial_extension_switch_controls =
_Workspace_Allocate_or_fatal_error(
rtems_configuration_get_number_of_initial_extensions()
* sizeof( *initial_extension_switch_controls )
);
User_extensions_Switch_context ctx = { initial_extension_switch_controls };
User_extensions_Switch_control *initial_extension_switch_controls;
const User_extensions_Table *initial_table;
uint32_t n;
uint32_t i;
_User_extensions_Iterate( &ctx, _User_extensions_Switch_visitor );
n = rtems_configuration_get_number_of_initial_extensions();
initial_extension_switch_controls = _Workspace_Allocate_or_fatal_error(
n * sizeof( *initial_extension_switch_controls )
);
initial_table = rtems_configuration_get_user_extension_table();
for ( i = 0 ; i < n ; ++i ) {
User_extensions_thread_switch_extension callout;
callout = initial_table[ i ].thread_switch;
if ( callout != NULL ) {
User_extensions_Switch_control *c;
c = &initial_extension_switch_controls[ i ];
c->thread_switch = callout;
_Chain_Append_unprotected( &_User_extensions_Switches_list, &c->Node );
}
}
}