The internals of Apache's initialisation are complex. But as far
as modules are concerned, it can normally be treated as simple:
you are just setting up your configuration, and everything is
permanent. Apache makes that easy: most of the relevant hooks have
prototypes that pass you the relevant pool as their first argument:
Configuration handlers
static const char* my_cfg(cmd_parms* cmd, void* cfg, /* args */ )
Use the configuration pool, cmd->pool to give your configuration the lifetime
of the directive.
Pre- and Post-config
These hooks are unusual in having several pools passed:
static int my_pre_config(apr_pool_t* pool, apr_pool_t* plog,apr_pool_t* ptemp). For most purposes, just use the first pool, but if your function
uses pools for temporary resources within itself, use ptemp.
Child init
static void my_child_init(apr_pool_t* pool, server_rec* s).
Again, the pool is the first argument.
