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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.
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#ifndef JEMALLOC_INTERNAL_EXTENT_DSS_H
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#define JEMALLOC_INTERNAL_EXTENT_DSS_H
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#include "jemalloc/internal/jemalloc_preamble.h"
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#include "jemalloc/internal/tsd_types.h"
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/* Forward decl; arena.h includes us, so we can't include arena.h back. */
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typedef struct arena_s arena_t;
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typedef enum {
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dss_prec_disabled = 0,
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dss_prec_primary = 1,
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dss_prec_secondary = 2,
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dss_prec_limit = 3
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} dss_prec_t;
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#define DSS_PREC_DEFAULT dss_prec_secondary
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#define DSS_DEFAULT "secondary"
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extern const char *const dss_prec_names[];
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extern const char *opt_dss;
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dss_prec_t extent_dss_prec_get(void);
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bool extent_dss_prec_set(dss_prec_t dss_prec);
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void *extent_alloc_dss(tsdn_t *tsdn, arena_t *arena, void *new_addr,
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size_t size, size_t alignment, bool *zero, bool *commit);
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bool extent_in_dss(void *addr);
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bool extent_dss_mergeable(void *addr_a, void *addr_b);
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void extent_dss_boot(void);
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#ifdef JEMALLOC_JET
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typedef void *(*extent_dss_sbrk_hook_t)(intptr_t);
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extern extent_dss_sbrk_hook_t extent_dss_sbrk_hook;
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#endif
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#endif /* JEMALLOC_INTERNAL_EXTENT_DSS_H */
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