nng_alloc()

NAME

nng_alloc — allocate memory

SYNOPSIS

#include <nng/nng.h>

void *nng_alloc(size_t size);

DESCRIPTION

The nng_alloc() function allocates a contiguous memory region of at least size bytes. The memory will be 64-bit aligned.

The returned memory can be used to hold message buffers, in which case it can be directly passed to nng_send() using the flag NNG_FLAG_ALLOC. Alternatively, it can be freed when no longer needed using nng_free().

important

Do not use the system free() function (or the C++ delete operator) to release this memory. On some configurations this may work, but on others it will lead to a crash or other unpredictable behavior.

RETURN VALUES

This function returns a pointer to the allocated memory on success, and NULL otherwise.

ERRORS

No errors are returned, but if memory cannot be allocated then NULL is returned.

SEE ALSO

nng_free(), nng_send()