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lib: os: mem_blocks: add alloc/free event notifications

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This adds event notification for mem_blocks using the new
heap listener interface.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2022-01-10 12:15:52 -08:00 • committed by Anas Nashif
commit f3856d0b47
2 changed files with 25 additions and 0 deletions
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8
lib/os/Kconfig.heap
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@ -117,4 +117,12 @@ config SYS_MEM_BLOCKS
the buffer to reside in memory regions where these can be
powered down to conserve energy.
config SYS_MEM_BLOCKS_LISTENER
bool "Enable Memory Blocks Allocator event notifications"
depends on SYS_MEM_BLOCKS
select HEAP_LISTENER
help
This allows application to listen for memory blocks allocator
events, such as memory allocation and de-allocation.
endmenu

17
lib/os/mem_blocks.c
View file

@ -7,6 +7,7 @@
#include <zephyr.h>
#include <sys/__assert.h>
#include <sys/check.h>
#include <sys/heap_listener.h>
#include <sys/mem_blocks.h>
#include <sys/util.h>
@ -91,6 +92,11 @@ int sys_mem_blocks_alloc(sys_mem_blocks_t *mem_block, size_t count,
}
out_blocks[i] = ptr;
#ifdef CONFIG_SYS_MEM_BLOCKS_LISTENER
heap_listener_notify_alloc(HEAP_ID_FROM_POINTER(mem_block),
ptr, BIT(mem_block->blk_sz_shift));
#endif
}
/* If error, free already allocated blocks. */
@ -137,6 +143,17 @@ int sys_mem_blocks_free(sys_mem_blocks_t *mem_block, size_t count,
if (r != 0) {
ret = r;
}
#ifdef CONFIG_SYS_MEM_BLOCKS_LISTENER
else {
/*
* Since we do not keep track of failed free ops,
* we need to notify free one-by-one, instead of
* notifying at the end of function.
*/
heap_listener_notify_free(HEAP_ID_FROM_POINTER(mem_block),
ptr, BIT(mem_block->blk_sz_shift));
}
#endif
}
out: