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a54018337c
arena_types.h + arena_structs.h + arena_externs.h merged into arena.h, keeping the three logical sections (TYPES / STRUCTS / EXTERNS) with explicit dividers. arena_inlines_a.h and arena_inlines_b.h stay separate; arena_inlines_b.h now carries a comment explaining why merging the two would reintroduce a real #include cycle through tcache_inlines.h -> arena_choose (the asymmetric cycle-breaker). Two ordering gotchas this consolidation surfaced: 1. tsd_internals.h is included from tsd.h via tsd_generic.h, sometimes long before arena.h is loaded (e.g. ckh.c includes ckh.h -> tsd.h before jemalloc_internal_includes.h). TSD_INITIALIZER's expansion in tsd_generic.h's function bodies references ARENA_DECAY_NTICKS_PER_UPDATE, so it must already be defined. Factor the constant into a new minimal header, arena_decay_constants.h, that pulls nothing but jemalloc_preamble.h, and include it from both arena.h and tsd_internals.h. arena_t is still added as a forward decl in tsd_internals.h -- including arena.h there would trigger arena_stats.h -> mutex.h -> tsd.h -> re-entry into this very file. 2. extent_dss.h previously included arena_types.h for the arena_t pointer type, but arena.h now includes extent_dss.h (it was a STRUCTS-section dep). Forward-decl arena_t in extent_dss.h to break that cycle. Additional forward decls in tcache.h and large.h (arena_t *). These were previously satisfied by the master include order loading arena_types.h before everything else; with arena.h now in the EXTERNS section, large.h and tcache.h are parsed earlier than arena.h, so they need to declare arena_t themselves. jemalloc_internal_externs.h's #include of arena_types.h was vestigial -- the file uses no arena symbols. Dropped. |
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