RTOS/rtems
1
0
Fork 0
forked from Imagelibrary/rtems
Code Pull Requests Activity

score: PR2152: Use allocator mutex for objects

Browse Source 
Use allocator mutex for objects allocate/free.  This prevents that the
thread dispatch latency depends on the workspace/heap fragmentation.
This commit is contained in:
Sebastian Huber
2014-03-27 14:16:12 +01:00
parent 346845730c
commit 23fec9f0e1
63 changed files with 421 additions and 319 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
cpukit/libcsupport/src/resource_snapshot.c
View File

@@ -98,38 +98,28 @@ static int open_files(void)
return (int) rtems_libio_number_iops - free_count;
}
static void free_all_delayed_blocks(void)
{
#ifdef HEAP_PROTECTION
_RTEMS_Lock_allocator();
_Thread_Disable_dispatch();
_Heap_Protection_free_all_delayed_blocks( RTEMS_Malloc_Heap );
_Heap_Protection_free_all_delayed_blocks( &_Workspace_Area );
_Thread_Enable_dispatch();
_RTEMS_Unlock_allocator();
#endif
}
void rtems_resource_snapshot_take(rtems_resource_snapshot *snapshot)
{
uint32_t *active = &snapshot->rtems_api.active_barriers;
size_t i;
free_all_delayed_blocks();
_RTEMS_Lock_allocator();
_Thread_Kill_zombies();
_Protected_heap_Get_information(RTEMS_Malloc_Heap, &snapshot->heap_info);
_Thread_Disable_dispatch();
#ifdef HEAP_PROTECTION
_Heap_Protection_free_all_delayed_blocks(RTEMS_Malloc_Heap);
_Heap_Protection_free_all_delayed_blocks(&_Workspace_Area);
#endif
_Heap_Get_information(RTEMS_Malloc_Heap, &snapshot->heap_info);
_Heap_Get_information(&_Workspace_Area, &snapshot->workspace_info);
for (i = 0; i < RTEMS_ARRAY_SIZE(objects_info_table); ++i) {
active [i] = _Objects_Active_count(objects_info_table[i]);
}
_Thread_Enable_dispatch();
_RTEMS_Unlock_allocator();
#ifndef RTEMS_POSIX_API
memset(&snapshot->posix_api, 0, sizeof(snapshot->posix_api));