Node / meshtastic / Meshtastic-Android / files / core / database / src / commonMain / kotlin / org / meshtastic / core / database / DatabaseConstants.kt

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T8b949e/*

* Copyright (c) 2026 Meshtastic LLC

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

*

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <https://www.gnu.org/licenses/>.

*/

Tff7b72package T7ee787org.meshtastic.core.database

Tff7b72import T7ee787okio.ByteString.Companion.encodeUtf8

Tff7b72import T7ee787org.meshtastic.core.common.util.isNoDeviceSentinel

Tff7b72import T7ee787org.meshtastic.core.common.util.normalizeAddress

Tff7b72object T56d364DatabaseConstants Tb4b4b4{

Tff7b72const Tff7b72val Te6edf3DB_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffmeshtastic_databaseTa5d6ff"

Tff7b72const Tff7b72val Te6edf3LEGACY_DB_NAMETb4b4b4: Tffa657String Tff7b72= Te6edf3DB_PREFIX

Tff7b72const Tff7b72val Te6edf3DEFAULT_DB_NAMETb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Tffd700${Te6edf3DB_PREFIXTffd700}Ta5d6ff_defaultTa5d6ff"

Tff7b72const Tff7b72val Te6edf3CACHE_LIMIT_KEYTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffnode_db_cache_limitTa5d6ff"

Tff7b72const Tff7b72val Te6edf3DEFAULT_CACHE_LIMITTb4b4b4: Tffa657Int Tff7b72= T79c0ff3

Tff7b72const Tff7b72val Te6edf3MIN_CACHE_LIMITTb4b4b4: Tffa657Int Tff7b72= T79c0ff1

Tff7b72const Tff7b72val Te6edf3MAX_CACHE_LIMITTb4b4b4: Tffa657Int Tff7b72= T79c0ff1T79c0ff0

Tff7b72const Tff7b72val Te6edf3LEGACY_DB_CLEANED_KEYTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6fflegacy_db_cleanedTa5d6ff"

T8b949e// Cross-transport unification: map a device / node / transport address to the DB file its data lives in.

T8b949e// Keys are dynamic (suffixed with the hex device id / node num / normalized address), mirroring the

T8b949e// `db_last_used:` pattern. The device-id key is preferred; the node-num key is the legacy fallback because

T8b949e// firmware 2.8 made node numbers unstable (renumbered on upgrade/erase/re-key).

Tff7b72const Tff7b72val Te6edf3DEVICE_DB_FOR_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffdevice_db_for:Ta5d6ff"

Tff7b72const Tff7b72val Te6edf3NODE_DB_FOR_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffnode_db_for:Ta5d6ff"

Tff7b72const Tff7b72val Te6edf3ADDR_DB_FOR_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffaddr_db_for:Ta5d6ff"

Tff7b72const Tff7b72val Te6edf3PENDING_SOURCE_DB_FOR_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffpending_source_db_for:Ta5d6ff"

Tff7b72const Tff7b72val Te6edf3PENDING_DESTINATION_DB_FOR_PREFIXTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffpending_destination_db_for:Ta5d6ff"

Tff7b72const Tff7b72val Te6edf3RETIRED_DB_NAMES_KEYTb4b4b4: Tffa657String Tff7b72= Ta5d6ff"Ta5d6ffretired_db_namesTa5d6ff"

T8b949e// Display/truncation and hash sizing for DB names

Tff7b72const Tff7b72val Te6edf3DB_NAME_HASH_LENTb4b4b4: Tffa657Int Tff7b72= T79c0ff1T79c0ff0

Tff7b72const Tff7b72val Te6edf3DB_NAME_SEPARATOR_LENTb4b4b4: Tffa657Int Tff7b72= T79c0ff1

Tff7b72const Tff7b72val Te6edf3DB_NAME_SUFFIX_LENTb4b4b4: Tffa657Int Tff7b72= T79c0ff3

T8b949e// Address anonymization sizing

Tff7b72const Tff7b72val Te6edf3ADDRESS_ANON_SHORT_LENTb4b4b4: Tffa657Int Tff7b72= T79c0ff4

Tff7b72const Tff7b72val Te6edf3ADDRESS_ANON_EDGE_LENTb4b4b4: Tffa657Int Tff7b72= T79c0ff2

T8b949e/**

* SQLite's default maximum number of host parameters (bind variables) per statement. Used to chunk IN-clause

* queries.

*/

Tff7b72const Tff7b72val Te6edf3SQLITE_MAX_BIND_PARAMETERSTb4b4b4: Tffa657Int Tff7b72= T79c0ff9T79c0ff9T79c0ff9

Tb4b4b4}

Tff7b72fun Td2a8ffshortSha1Tb4b4b4(Te6edf3sTb4b4b4: Tffa657StringTb4b4b4)Tb4b4b4: Tffa657String Tff7b72= Te6edf3sTb4b4b4.Te6edf3encodeUtf8Tb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3sha1Tb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3hexTb4b4b4(Tb4b4b4)Tb4b4b4.Te6edf3takeTb4b4b4(Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DB_NAME_HASH_LENTb4b4b4)

Tff7b72fun Td2a8ffbuildDbNameTb4b4b4(Te6edf3addressTb4b4b4: Tffa657String?Tb4b4b4)Tb4b4b4: Tffa657String Tb4b4b4{

Tff7b72val Te6edf3normalized Tff7b72= Te6edf3normalizeAddressTb4b4b4(Te6edf3addressTb4b4b4)

T8b949e// No-device sentinels must resolve to the canonical DEFAULT_DB_NAME file, not be hashed into a

T8b949e// separate DB — otherwise data for "no device selected" would split across files depending on

T8b949e// which sentinel form prefs happened to emit. Sentinel detection is shared with isValidDeviceAddress

T8b949e// via isNoDeviceSentinel so DB naming and the foreground-service stay-alive decision never diverge.

Tff7b72if Tb4b4b4(Te6edf3isNoDeviceSentinelTb4b4b4(Te6edf3normalizedTb4b4b4)Tb4b4b4) Tff7b72return Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DEFAULT_DB_NAME

Tff7b72return Ta5d6ff"Tffd700${Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DB_PREFIXTffd700}Ta5d6ff_Tffd700${Te6edf3shortSha1Tb4b4b4(Te6edf3normalizedTb4b4b4)Tffd700}Ta5d6ff"

Tb4b4b4}

Tff7b72fun Td2a8ffanonymizeAddressTb4b4b4(Te6edf3addressTb4b4b4: Tffa657String?Tb4b4b4)Tb4b4b4: Tffa657String Tff7b72= Tff7b72when Tb4b4b4{

Te6edf3address Tff7b72=Tff7b72= Tff7b72null Tff7b72-Tff7b72> Ta5d6ff"Ta5d6ffnullTa5d6ff"

Te6edf3addressTb4b4b4.Te6edf3length Tff7b72<Tff7b72= Te6edf3DatabaseConstantsTb4b4b4.Te6edf3ADDRESS_ANON_SHORT_LEN Tff7b72-Tff7b72> Te6edf3address

Tff7b72else Tff7b72-Tff7b72>

Te6edf3addressTb4b4b4.Te6edf3takeTb4b4b4(Te6edf3DatabaseConstantsTb4b4b4.Te6edf3ADDRESS_ANON_EDGE_LENTb4b4b4) Tff7b72+

Ta5d6ff"Ta5d6ff…Ta5d6ff" Tff7b72+

Te6edf3addressTb4b4b4.Te6edf3takeLastTb4b4b4(Te6edf3DatabaseConstantsTb4b4b4.Te6edf3ADDRESS_ANON_EDGE_LENTb4b4b4)

Tb4b4b4}

Tff7b72fun Td2a8ffanonymizeDbNameTb4b4b4(Te6edf3nameTb4b4b4: Tffa657StringTb4b4b4)Tb4b4b4: Tffa657String Tff7b72=

Tff7b72if Tb4b4b4(Te6edf3name Tff7b72=Tff7b72= Te6edf3DatabaseConstantsTb4b4b4.Te6edf3LEGACY_DB_NAME Tff7b72|Tff7b72| Te6edf3name Tff7b72=Tff7b72= Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DEFAULT_DB_NAMETb4b4b4) Tb4b4b4{

Te6edf3name

Tb4b4b4} Tff7b72else Tb4b4b4{

Te6edf3nameTb4b4b4.Te6edf3takeTb4b4b4(

Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DB_PREFIXTb4b4b4.Te6edf3length Tff7b72+

Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DB_NAME_SEPARATOR_LEN Tff7b72+

Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DB_NAME_SUFFIX_LENTb4b4b4,

Tb4b4b4) Tff7b72+ Ta5d6ff"Ta5d6ff…Ta5d6ff"

Tb4b4b4}

T8b949e/**

* Computes which databases to evict using LRU policy. [protectedDbNames] remain counted toward [limit] but can never be

* selected, so the returned list may intentionally leave the cache over limit while recovery evidence is retained.

*/

Tff7b72internal Tff7b72fun Td2a8ffselectEvictionVictimsTb4b4b4(

Te6edf3dbNamesTb4b4b4: Te6edf3ListTff7b72<Tffa657StringTff7b72>Tb4b4b4,

Te6edf3activeDbNameTb4b4b4: Tffa657StringTb4b4b4,

Te6edf3limitTb4b4b4: Tffa657IntTb4b4b4,

Te6edf3lastUsedMsByDbTb4b4b4: Te6edf3MapTff7b72<Tffa657StringTb4b4b4, Tffa657LongTff7b72>Tb4b4b4,

Te6edf3protectedDbNamesTb4b4b4: Te6edf3SetTff7b72<Tffa657StringTff7b72> Tff7b72= Te6edf3emptySetTb4b4b4(Tb4b4b4)Tb4b4b4,

Tb4b4b4)Tb4b4b4: Te6edf3ListTff7b72<Tffa657StringTff7b72> Tb4b4b4{

Tff7b72val Te6edf3deviceDbNames Tff7b72=

Te6edf3dbNamesTb4b4b4.Te6edf3filterNot Tb4b4b4{ Tffa657it Tff7b72=Tff7b72= Te6edf3DatabaseConstantsTb4b4b4.Te6edf3LEGACY_DB_NAME Tff7b72|Tff7b72| Tffa657it Tff7b72=Tff7b72= Te6edf3DatabaseConstantsTb4b4b4.Te6edf3DEFAULT_DB_NAME Tb4b4b4}

Tff7b72val Te6edf3victims Tff7b72=

Tff7b72if Tb4b4b4(Te6edf3limit Tff7b72< T79c0ff1 Tff7b72|Tff7b72| Te6edf3deviceDbNamesTb4b4b4.Te6edf3size Tff7b72<Tff7b72= Te6edf3limitTb4b4b4) Tb4b4b4{

Te6edf3emptyListTb4b4b4(Tb4b4b4)

Tb4b4b4} Tff7b72else Tb4b4b4{

Tff7b72val Te6edf3candidates Tff7b72= Te6edf3deviceDbNamesTb4b4b4.Te6edf3filter Tb4b4b4{ Tffa657it Tff7b72!Tff7b72= Te6edf3activeDbName Tff7b72&Tff7b72& Tffa657it Tff7b72!in Te6edf3protectedDbNames Tb4b4b4}

Tff7b72if Tb4b4b4(Te6edf3candidatesTb4b4b4.Te6edf3isEmptyTb4b4b4(Tb4b4b4)Tb4b4b4) Tb4b4b4{

Te6edf3emptyListTb4b4b4(Tb4b4b4)

Tb4b4b4} Tff7b72else Tb4b4b4{

Tff7b72val Te6edf3toEvict Tff7b72= Te6edf3deviceDbNamesTb4b4b4.Te6edf3size Tff7b72- Te6edf3limit

Te6edf3candidatesTb4b4b4.Te6edf3sortedBy Tb4b4b4{ Te6edf3lastUsedMsByDbTff7b72[Tffa657itTff7b72] Tff7b72?: T79c0ff0L Tb4b4b4}Tb4b4b4.Te6edf3takeTb4b4b4(Te6edf3toEvictTb4b4b4)

Tb4b4b4}

Tb4b4b4}

Tff7b72return Te6edf3victims

Tb4b4b4}