From df0cc5d42c6b6ce77b28b19415a2d25e41fb0b97 Mon Sep 17 00:00:00 2001 From: Pixel Date: Sat, 5 Feb 2011 14:48:24 -0800 Subject: Adding library acorn, with malloc wrapping. --- acorn/src/malloc_wrapper.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 acorn/src/malloc_wrapper.c (limited to 'acorn/src') diff --git a/acorn/src/malloc_wrapper.c b/acorn/src/malloc_wrapper.c new file mode 100644 index 0000000..3b5f9df --- /dev/null +++ b/acorn/src/malloc_wrapper.c @@ -0,0 +1,41 @@ +#include +#include +#include + +static xSemaphoreHandle malloc_sem = NULL; +static malloc_t old_malloc; +static realloc_t old_realloc; +static free_t old_free; + +static void * malloc_wrap(size_t s) { + void * r; + xSemaphoreTakeRecursive(malloc_sem, portMAX_DELAY); + r = old_malloc(s); + xSemaphoreGiveRecursive(malloc_sem); + return r; +} + +static void * realloc_wrap(void * p, size_t s) { + void * r; + xSemaphoreTakeRecursive(malloc_sem, portMAX_DELAY); + r = old_realloc(p, s); + xSemaphoreGiveRecursive(malloc_sem); + return r; +} + +static void free_wrap(void * p) { + xSemaphoreTakeRecursive(malloc_sem, portMAX_DELAY); + old_free(p); + xSemaphoreGiveRecursive(malloc_sem); +} + +void init_malloc_wrapper() { + malloc_sem = xSemaphoreCreateRecursiveMutex(); + old_malloc = malloc; + old_realloc = realloc; + old_free = free; + malloc = malloc_wrap; + realloc = realloc_wrap; + free = free_wrap; +} + -- cgit v1.2.3