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/*! \file talloc.h */
#pragma once
#include <talloc.h>
/*! per-thread talloc contexts. This works around the problem that talloc is not
* thread-safe. However, one can simply have a different set of talloc contexts for each
* thread, and ensure that allocations made on one thread are always only free'd on that
* very same thread.
* WARNING: Users must make sure they free() on the same thread as they allocate!! */
struct osmo_talloc_contexts {
/*! global per-thread talloc context. */
void *global;
/*! volatile select-dispatch context. This context is completely free'd and
* re-created every time the main select loop in osmo_select_main() returns from
* select(2) and calls per-fd callback functions. This allows users of this
* facility to allocate temporary objects like string buffers, message buffers
* and the like which are automatically free'd when going into the next select()
* system call */
void *select;
};
extern __thread struct osmo_talloc_contexts *osmo_ctx;
/* short-hand #defines for the osmo talloc contexts (OTC) that can be used to pass
* to the various _c functions like msgb_alloc_c() */
#define OTC_GLOBAL (osmo_ctx->global)
#define OTC_SELECT (osmo_ctx->select)
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