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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 19:43:52 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-11-02 19:43:52 +0000 |
commit | 317a5b52b5060ef98ffe2b3bb3f980165fea8e81 (patch) | |
tree | d9a0c0a0aeaad1553008465e15c71c54e0393008 /c/src/exec/score/src/objectallocatebyindex.c | |
parent | Split types.s into individual files. (diff) | |
download | rtems-317a5b52b5060ef98ffe2b3bb3f980165fea8e81.tar.bz2 |
Split object.c into multiple files.
Diffstat (limited to 'c/src/exec/score/src/objectallocatebyindex.c')
-rw-r--r-- | c/src/exec/score/src/objectallocatebyindex.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/c/src/exec/score/src/objectallocatebyindex.c b/c/src/exec/score/src/objectallocatebyindex.c new file mode 100644 index 0000000000..74f4c2c948 --- /dev/null +++ b/c/src/exec/score/src/objectallocatebyindex.c @@ -0,0 +1,76 @@ +/* + * Object Handler + * + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include <rtems/system.h> +#include <rtems/score/address.h> +#include <rtems/score/chain.h> +#include <rtems/score/object.h> +#if defined(RTEMS_MULTIPROCESSING) +#include <rtems/score/objectmp.h> +#endif +#include <rtems/score/thread.h> +#include <rtems/score/wkspace.h> +#include <rtems/score/sysstate.h> +#include <rtems/score/isr.h> + +/*PAGE + * + * _Objects_Allocate_by_index + * + * DESCRIPTION: + * + * This function allocates the object control block + * specified by the index from the inactive chain of + * free object control blocks. + */ + +Objects_Control *_Objects_Allocate_by_index( + Objects_Information *information, + unsigned32 index, + unsigned32 sizeof_control +) +{ + Objects_Control *the_object; + void *p; + + if ( index && information->maximum >= index ) { + the_object = _Objects_Get_local_object( information, index ); + if ( the_object ) + return NULL; + + /* XXX + * This whole section of code needs to be addressed. + * + The 0 should be dealt with more properly so we can autoextend. + * + The pointer arithmetic is probably too expensive. + * + etc. + */ + + p = _Addresses_Add_offset( information->object_blocks[ 0 ], + (information->allocation_size * information->name_length) ), + + p = _Addresses_Add_offset( p, (sizeof_control * (index - 1)) ); + the_object = (Objects_Control *)p; + _Chain_Extract( &the_object->Node ); + + return the_object; + } + + /* + * Autoextend will have to be thought out as it applies + * to user assigned indices. + */ + + return NULL; +} |