text: #ifndef JEMALLOC_INTERNAL_PROF_EXTERNS_H
  #define JEMALLOC_INTERNAL_PROF_EXTERNS_H
  
  #include "jemalloc/internal/mutex.h"
  
  extern malloc_mutex_t bt2gctx_mtx;
  extern malloc_mutex_t tdatas_mtx;
  extern malloc_mutex_t prof_dump_mtx;
  
  extern bool opt_prof;
  extern bool opt_prof_active;
  extern bool opt_prof_thread_active_init;
  extern size_t opt_lg_prof_sample;    /* Mean bytes between samples. */
  extern ssize_t opt_lg_prof_interval; /* lg(prof_interval). */
  extern bool opt_prof_gdump;          /* High-water memory dumping. */
  extern bool opt_prof_final;          /* Final profile dumping. */
  extern bool opt_prof_leak;           /* Dump leak summary at exit. */
  extern bool opt_prof_accum;          /* Report cumulative bytes. */
  extern bool opt_prof_log;            /* Turn logging on at boot. */
  extern char opt_prof_prefix[
      /* Minimize memory bloat for non-prof builds. */
  #ifdef JEMALLOC_PROF
      PATH_MAX +
  #endif
      1];
  
  /* For recording recent allocations */
  extern ssize_t opt_prof_recent_alloc_max;
  extern malloc_mutex_t prof_recent_alloc_mtx;
  
  /* Whether to use thread name provided by the system or by mallctl. */
  extern bool opt_prof_experimental_use_sys_thread_name;
  
  /* Accessed via prof_active_[gs]et{_unlocked,}(). */
  extern bool prof_active;
  
  /* Accessed via prof_gdump_[gs]et{_unlocked,}(). */
  extern bool prof_gdump_val;
  
  /* Profile dump interval, measured in bytes allocated. */
  extern uint64_t prof_interval;
  
  /*
   * Initialized as opt_lg_prof_sample, and potentially modified during profiling
   * resets.
   */
  extern size_t lg_prof_sample;
  
  extern bool prof_booted;
  
  /* Functions only accessed in prof_inlines_a.h */
  bool prof_idump_accum_impl(tsdn_t *tsdn, uint64_t accumbytes);
  void prof_idump_rollback_impl(tsdn_t *tsdn, size_t usize);
  
  /* Functions only accessed in prof_inlines_b.h */
  prof_tdata_t *prof_tdata_init(tsd_t *tsd);
  prof_tdata_t *prof_tdata_reinit(tsd_t *tsd, prof_tdata_t *tdata);
  
  void prof_alloc_rollback(tsd_t *tsd, prof_tctx_t *tctx);
  void prof_malloc_sample_object(tsd_t *tsd, const void *ptr, size_t size,
      size_t usize, prof_tctx_t *tctx);
  void prof_free_sampled_object(tsd_t *tsd, size_t usize, prof_info_t *prof_info);
  prof_tctx_t *prof_tctx_create(tsd_t *tsd);
  #ifdef JEMALLOC_JET
  typedef int (prof_read_sys_thread_name_t)(char *buf, size_t limit);
  extern prof_read_sys_thread_name_t *JET_MUTABLE prof_read_sys_thread_name;
  size_t prof_tdata_count(void);
  size_t prof_bt_count(void);
  #endif
  typedef int (prof_dump_open_t)(bool, const char *);
  extern prof_dump_open_t *JET_MUTABLE prof_dump_open;
  
  typedef bool (prof_dump_header_t)(tsdn_t *, bool, const prof_cnt_t *);
  extern prof_dump_header_t *JET_MUTABLE prof_dump_header;
  #ifdef JEMALLOC_JET
  void prof_cnt_all(uint64_t *curobjs, uint64_t *curbytes, uint64_t *accumobjs,
      uint64_t *accumbytes);
  #endif
  int prof_getpid(void);
  void prof_get_default_filename(tsdn_t *tsdn, char *filename, uint64_t ind);
  bool prof_accum_init(void);
  void prof_idump(tsdn_t *tsdn);
  bool prof_mdump(tsd_t *tsd, const char *filename);
  void prof_gdump(tsdn_t *tsdn);
  bool prof_dump_prefix_set(tsdn_t *tsdn, const char *prefix);
  
  void prof_reset(tsd_t *tsd, size_t lg_sample);
  void prof_tdata_cleanup(tsd_t *tsd);
  bool prof_active_get(tsdn_t *tsdn);
  bool prof_active_set(tsdn_t *tsdn, bool active);
  const char *prof_thread_name_get(tsd_t *tsd);
  int prof_thread_name_set(tsd_t *tsd, const char *thread_name);
  bool prof_thread_active_get(tsd_t *tsd);
  bool prof_thread_active_set(tsd_t *tsd, bool active);
  bool prof_thread_active_init_get(tsdn_t *tsdn);
  bool prof_thread_active_init_set(tsdn_t *tsdn, bool active_init);
  bool prof_gdump_get(tsdn_t *tsdn);
  bool prof_gdump_set(tsdn_t *tsdn, bool active);
  void prof_boot0(void);
  void prof_boot1(void);
  bool prof_boot2(tsd_t *tsd, base_t *base);
  void prof_prefork0(tsdn_t *tsdn);
  void prof_prefork1(tsdn_t *tsdn);
  void prof_postfork_parent(tsdn_t *tsdn);
  void prof_postfork_child(tsdn_t *tsdn);
  void prof_sample_threshold_update(tsd_t *tsd);
  
  bool prof_log_start(tsdn_t *tsdn, const char *filename);
  bool prof_log_stop(tsdn_t *tsdn);
  
  ssize_t prof_recent_alloc_max_ctl_read();
  ssize_t prof_recent_alloc_max_ctl_write(tsd_t *tsd, ssize_t max);
  void prof_recent_alloc_dump(tsd_t *tsd, void (*write_cb)(void *, const char *),
      void *cbopaque);
  
  #endif /* JEMALLOC_INTERNAL_PROF_EXTERNS_H */
  