amduat-api/src/amduatd_fed_cursor.h

#ifndef AMDUATD_FED_CURSOR_H
#define AMDUATD_FED_CURSOR_H

#include "amduat/asl/asl_pointer_fs.h"
#include "amduat/asl/core.h"
#include "amduat/asl/store.h"
#include "amduatd_fed.h"
#include "amduatd_space.h"

#include <stdbool.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
  AMDUATD_FED_CURSOR_OK = 0,
  AMDUATD_FED_CURSOR_ERR_INVALID = 1,
  AMDUATD_FED_CURSOR_ERR_NOT_FOUND = 2,
  AMDUATD_FED_CURSOR_ERR_POINTER = 3,
  AMDUATD_FED_CURSOR_ERR_STORE = 4,
  AMDUATD_FED_CURSOR_ERR_CODEC = 5,
  AMDUATD_FED_CURSOR_ERR_CONFLICT = 6,
  AMDUATD_FED_CURSOR_ERR_DISABLED = 7
} amduatd_fed_cursor_status_t;

typedef struct {
  char *peer_key;
  char *space_id;
  bool has_logseq;
  uint64_t last_logseq;
  bool has_record_ref;
  amduat_reference_t last_record_ref;
} amduatd_fed_cursor_record_t;

void amduatd_fed_cursor_record_init(amduatd_fed_cursor_record_t *record);

void amduatd_fed_cursor_record_free(amduatd_fed_cursor_record_t *record);

bool amduatd_fed_cursor_pointer_name(const amduatd_space_t *space,
                                     const char *peer_key,
                                     amduat_octets_t *out_name);

bool amduatd_fed_push_cursor_pointer_name(const amduatd_space_t *space,
                                          const char *peer_key,
                                          amduat_octets_t *out_name);

bool amduatd_fed_cursor_pointer_name_v2(const amduatd_space_t *space,
                                        const char *peer_key,
                                        const char *remote_space_id,
                                        amduat_octets_t *out_name);

bool amduatd_fed_push_cursor_pointer_name_v2(const amduatd_space_t *space,
                                             const char *peer_key,
                                             const char *remote_space_id,
                                             amduat_octets_t *out_name);

amduatd_fed_cursor_status_t amduatd_fed_cursor_check_enabled(
    const amduatd_fed_cfg_t *cfg);

amduatd_fed_cursor_status_t amduatd_fed_cursor_get(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    amduatd_fed_cursor_record_t *out_cursor,
    amduat_reference_t *out_ref);

amduatd_fed_cursor_status_t amduatd_fed_cursor_get_remote(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const char *remote_space_id,
    amduatd_fed_cursor_record_t *out_cursor,
    amduat_reference_t *out_ref);

amduatd_fed_cursor_status_t amduatd_fed_push_cursor_get(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    amduatd_fed_cursor_record_t *out_cursor,
    amduat_reference_t *out_ref);

amduatd_fed_cursor_status_t amduatd_fed_push_cursor_get_remote(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const char *remote_space_id,
    amduatd_fed_cursor_record_t *out_cursor,
    amduat_reference_t *out_ref);

amduatd_fed_cursor_status_t amduatd_fed_cursor_cas_set(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const amduat_reference_t *expected_ref,
    const amduatd_fed_cursor_record_t *new_cursor,
    amduat_reference_t *out_new_ref);

amduatd_fed_cursor_status_t amduatd_fed_cursor_cas_set_remote(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const char *remote_space_id,
    const amduat_reference_t *expected_ref,
    const amduatd_fed_cursor_record_t *new_cursor,
    amduat_reference_t *out_new_ref);

amduatd_fed_cursor_status_t amduatd_fed_push_cursor_cas_set(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const amduat_reference_t *expected_ref,
    const amduatd_fed_cursor_record_t *new_cursor,
    amduat_reference_t *out_new_ref);

amduatd_fed_cursor_status_t amduatd_fed_push_cursor_cas_set_remote(
    amduat_asl_store_t *store,
    amduat_asl_pointer_store_t *pointer_store,
    const amduatd_space_t *effective_space,
    const char *peer_key,
    const char *remote_space_id,
    const amduat_reference_t *expected_ref,
    const amduatd_fed_cursor_record_t *new_cursor,
    amduat_reference_t *out_new_ref);

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* AMDUATD_FED_CURSOR_H */