More flexible custom memory allocation

[claudix]

It'd be interesting to pass a user argument to custom allocation functions. For example:

void *my_malloc(size_t sz, void *userarg)
{
...   
}

void my_free(void *p, void *userarg)
{
...
}

foo_t myarg;
json_set_alloc_funcs_arg(my_malloc, my_free, &myarg); //<---The wanted function

This way the custom functions would receive 'myarg' every time they were called. This is useful when using memory pool allocators such as Apache's mempools.

Thank you.

[akheron]

This is a good idea. Could you write the patch yourself?

[claudix]

I have never digged myself into jansson's code but yes, sure I can. How do you want me to send the patches?

[claudix]

I have submitted a pull request: https://github.com/akheron/jansson/pull/226