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