Function _rpmalloc_unmap

source/extern/rpmalloc.c:922–932

Unmap virtual memory address is the memory address to unmap, as returned from _memory_map size is the number of bytes to unmap, which might be less than full region for a partial unmap offset is the offset in bytes to the actual mapped region, as set by _memory_map release is set to 0 for partial unmap, or size of entire range for a full unmap

//  offset is the offset in bytes to the actual mapped region, as set by _memory_map
//  release is set to 0 for partial unmap, or size of entire range for a full unmap
static void
_rpmalloc_unmap(void* address, size_t size, size_t offset, size_t release) {
	rpmalloc_assert(!release || (release >= size), "Invalid unmap size");
	rpmalloc_assert(!release || (release >= _memory_page_size), "Invalid unmap size");
	if (release) {
		rpmalloc_assert(!(release % _memory_page_size), "Invalid unmap size");
		_rpmalloc_stat_sub(&_mapped_pages, (release >> _memory_page_size_shift));
		_rpmalloc_stat_add(&_unmapped_total, (release >> _memory_page_size_shift));
	}
	_memory_config.memory_unmap(address, size, offset, release);
}

//! Default implementation to map new pages to virtual memory
static void*