Mirror
/
ardupilot
mirror of https://github.com/ArduPilot/ardupilot
5
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

AP_HAL_SITL: added old_size to heap_realloc

This commit is contained in:
Andrew Tridgell 2022-12-23 09:50:37 +11:00
parent deb86be1da
commit 12c24df476
2 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
libraries/AP_HAL_SITL/Util.cpp
View File

@ -89,7 +89,7 @@ void *HALSITL::Util::allocate_heap_memory(size_t size)
return (void *)new_heap;
}
void *HALSITL::Util::heap_realloc(void *heap_ptr, void *ptr, size_t new_size)
void *HALSITL::Util::heap_realloc(void *heap_ptr, void *ptr, size_t old_size, size_t new_size)
{
if (heap_ptr == nullptr) {
return nullptr;
@ -98,11 +98,16 @@ void *HALSITL::Util::heap_realloc(void *heap_ptr, void *ptr, size_t new_size)
struct heap *heapp = (struct heap*)heap_ptr;
// extract appropriate headers
size_t old_size = 0;
size_t old_size_header = 0;
heap_allocation_header *old_header = nullptr;
if (ptr != nullptr) {
old_header = ((heap_allocation_header *)ptr) - 1;
old_size = old_header->allocation_size;
old_size_header = old_header->allocation_size;
#if !defined(HAL_BUILD_AP_PERIPH)
if (old_size_header != old_size && new_size != 0) {
INTERNAL_ERROR(AP_InternalError::error_t::invalid_arg_or_result);
}
#endif
}
if ((heapp->current_heap_usage + new_size - old_size) > heapp->scripting_max_heap_size) {
@ -110,7 +115,7 @@ void *HALSITL::Util::heap_realloc(void *heap_ptr, void *ptr, size_t new_size)
return nullptr;
}
heapp->current_heap_usage -= old_size;
heapp->current_heap_usage -= old_size_header;
if (new_size == 0) {
free(old_header);
return nullptr;

2
libraries/AP_HAL_SITL/Util.h
View File

@ -49,7 +49,7 @@ public:
#ifdef ENABLE_HEAP
// heap functions, note that a heap once alloc'd cannot be dealloc'd
void *allocate_heap_memory(size_t size) override;
void *heap_realloc(void *heap, void *ptr, size_t new_size) override;
void *heap_realloc(void *heap, void *ptr, size_t old_size, size_t new_size) override;
#endif // ENABLE_HEAP
#ifdef WITH_SITL_TONEALARM