rockbox/firmware/include/core_alloc.h, branch xracer

buflib: Properly support allocations without any name, to avoid wasting space

2014-02-02T18:40:38+00:00

in micro-allocation scenarios.

Change-Id: I97a065bcfba8e0fda9b1670445e839e267c769c8

buflib: Add crc field protecting buflib cookie integrity

2014-01-16T09:17:39+00:00

This should catch the case of buffer misuse which results
in corrupted cookie of next allocation. The check is performed
on move_block() so it may be a bit late.

There is buflib_check_valid() provided which checks the
integrity of all cookies for given context.
On DEBUG build with --sdl-thread this check is carried out
for core_ctx on every context switch to catch problems earlier.

Change-Id: I999d4576084592394e3dbd3bdf0f32935ff5f601
Reviewed-on: http://gerrit.rockbox.org/711
Reviewed-by: Thomas Martitz

buflib: Change buflib_available() and add buflib_allocatable().

2013-07-07T08:46:07+00:00

buflib_allocatable() is what buflib_available() was before (it was in fact
simply renamed). It returns the largest contiguous block of memory. This
can be allocated and will definitely succeed, although larger allocations
may also succeed if the buffer can be compacted and shrinked.

buflib_available() now counts all free bytes, contiguous or not. This
better matches the description and how the caller use it.

Change-Id: I511e4eb5f4cf1821d957b3f4ef8a685ce40fe289
Reviewed-on: http://gerrit.rockbox.org/481
Reviewed-by: Thomas Martitz 
Tested-by: Thomas Martitz

Add more INIT_ATTR and add config.h includes to header files with INIT_ATTR.

2011-12-19T20:12:52+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31370 a1c6a512-1295-4272-9138-f99709370657

core_alloc: Provide a tiny test allocation, which can be freed for debug purposes.

2011-10-05T18:32:19+00:00

This allocation can be freed in the buflib debug menu (select it to free).
Doing a another allocation, e.g. by selecting another item in this debug menu
will cause compaction (all allocs move).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30719 a1c6a512-1295-4272-9138-f99709370657

FS#12273 - use buflib for font storage. thanks to the testers :)

2011-09-24T13:19:34+00:00

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30589 a1c6a512-1295-4272-9138-f99709370657

GSoC/Buflib: Add buflib memory alocator to the core.

2011-08-30T14:01:33+00:00

The buflib memory allocator is handle based and can free and
compact, move or resize memory on demand. This allows to effeciently
allocate memory dynamically without an MMU, by avoiding fragmentation
through memory compaction.

This patch adds the buflib library to the core, along with
convinience wrappers to omit the context parameter. Compaction is
not yet enabled, but will be in a later patch. Therefore, this acts as a
replacement for buffer_alloc/buffer_get_buffer() with the benifit of a debug
menu.

See buflib.h for some API documentation.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30380 a1c6a512-1295-4272-9138-f99709370657