sco_storage_v1.next_key

Catalogue snapshot — development preview

SDK 2.3.0 · game pack 0.6.0 · source e616ed69d8f9f77b0f4827881c86d91e4a7d1689 Published release: sdk-v2.3.0 (immutable approved assets; this development preview is not an approved release). Source-backed inventory is not a runtime or in-game verification claim.

The first key that starts with prefix (NULL or “”: any key) and sorts after “after” (NULL: from the start), in byte order, copied NUL-terminated with the size handshake. Iterate by passing the last key back as after. SCO_NOT_FOUND: no more keys.

Limitations / unestablished guarantees

• Same-call recursive reentrancy unspecified.
• Additional failures/output state unspecified unless described in the buffer contract.

Signature

sco_result (*)(sco_plugin *, const char *, const char *, char *, uint32_t *)

Service and availability

Service index

Property	Value
Symbol	sco_storage_v1.next_key
Record ID	sco-storage-v1-next-key
Service	sco.storage
Table	sco_storage_v1
Version macro	SCO_STORAGE_VERSION_1_0
Packed table version	65536
Since / availability	size >= 40; 1.0
Complete member extent (x64 bytes)	40
Table size (x64 bytes)	128

Header source

Parameters and buffers

sco_result (*next_key)(sco_plugin* self, const char* prefix, const char* after, char* out, uint32_t* inout_size);
The first key that starts with prefix (NULL or “”: any key) and sorts after “after” (NULL: from the start), in byte order, copied NUL-terminated with the size handshake. Iterate by passing the last key back as after. SCO_NOT_FOUND: no more keys.

Results and failures

Absent table: query_service NOT_FOUND. Stopped: UNAVAILABLE; invalid/released self: BAD_ARG. Allocation exceptions: TOO_MANY; database errors may be FAILED. Additional failures/output state unspecified unless described in the buffer contract.

Absent capability

Absent table: query_service NOT_FOUND.

Ownership

Caller buffers; inputs/SQL parameters copied during call. Host owns database/cursors; no SQLite pointer or allocation crosses the ABI.

Thread affinity

Any thread; calls serialize per plugin. Same-call recursive reentrancy unspecified.

Callback context

unspecified

Reentrancy

unspecified

Cleanup and cancellation

No cancellation entrypoint; ordinary unload/non-retained crash cleanup rolls back transaction and closes cursors/database. Retained-provider faults skip owner resource-release hooks and require restart; backing resources remain retained, not safe for cached calls.

Language mappings

Status labels are copied verbatim from the catalogue: direct is native access; typed-wrapper is wrapper-backed; restricted is a subset/adaptation; unsupported means no supported route is established. No status implies universal safety.

Language	Catalogue status	Source evidence / wrapper tokens
c	direct	include/sco_storage.h (*next_key)
cpp	typed-wrapper	include/scosdk/storage.hpp const sco_result r = t_->next_key(self_, prefix, out.empty() ? nullptr : last.c_str(), buf, &size);
csharp	typed-wrapper	sdk/csharp/Sco.Sdk/Storage.cs return _t->next_key(Self, pp, ap, buf, size);
lua	typed-wrapper	plugins/lua/sco_lua.c const sco_result r = st->next_key(s->self, prefix, after, key, &size);

Examples

• sdk/examples/notebook/main.lua

Tests

• tests/abi_storage.c
• tests/test_lua.cpp
• tests/test_settings.cpp
• tests/test_storage.cpp
• sdk/csharp/Sco.Sdk.Tests/FakeHost.cs
• tools/test.sh
• sdk/csharp/Sco.Sdk.Tests/Layout.cs

ABI pins prove layout, not semantic behavior or a live game session.