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KosMemAlloc()
This function is declared in the kos/alloc.h file.
void *KosMemAlloc(rtl_size_t size);
This function allocates (reserves and commits) a memory area equal to the specific size of bytes.
This function returns a pointer to the allocated area or RTL_NULL if memory could not be allocated.
Memory allocated by using the KosMemAlloc() function has the following allocation flags: VMM_FLAG_READ | VMM_FLAG_WRITE, VMM_FLAG_RESERVE, VMM_FLAG_COMMIT, VMM_FLAG_LOCKED. To allocate memory with other allocation flags, use the KnVmAllocate() function.
KosMemAllocEx()
This function is declared in the kos/alloc.h file.
void *KosMemAllocEx(rtl_size_t size, rtl_size_t align, int zeroed);
This function is analogous to KosMemAlloc(), but it also has additional parameters:
alignrefers to the alignment of the memory area in bytes (power of two).zeroeddetermines whether or not the memory area needs to be filled with zeros (1 means fill, 0 means do not fill).
KosMemFree()
This function is declared in the kos/alloc.h file.
void KosMemFree(void *ptr);
This function frees a memory area that was allocated using the KosMemAlloc(), KosMemZalloc() or KosMemAllocEx() function.
ptris the pointer to the freed memory area.
KosMemGetSize()
This function is declared in the kos/alloc.h file.
rtl_size_t KosMemGetSize(void *ptr);
This function returns the size (in bytes) of the memory area allocated using the KosMemAlloc(), KosMemZalloc() or KosMemAllocEx() function.
ptris the pointer to the memory area.
KosMemZalloc()
This function is declared in the kos/alloc.h file.
void *KosMemZalloc(rtl_size_t size);
This function is analogous to KosMemAlloc(), but it also fills the allocated memory area with zeros.