| 39 | } |
| 40 | |
| 41 | pub(super) async fn handle_set( |
| 42 | cmd: &RespCommand, |
| 43 | session: &RespSession, |
| 44 | state: &SharedState, |
| 45 | ) -> RespValue { |
| 46 | if cmd.argc() < 2 { |
| 47 | return RespValue::err("ERR wrong number of arguments for 'set' command"); |
| 48 | } |
| 49 | |
| 50 | let key = cmd.args[0].clone(); |
| 51 | let value = cmd.args[1].clone(); |
| 52 | |
| 53 | // Parse optional flags: EX, PX, NX, XX. |
| 54 | let mut ttl_ms: u64 = 0; |
| 55 | let mut nx = false; |
| 56 | let mut xx = false; |
| 57 | let mut i = 2; |
| 58 | while i < cmd.argc() { |
| 59 | match cmd.arg_str(i).map(|s| s.to_uppercase()) { |
| 60 | Some(ref flag) if flag == "EX" => { |
| 61 | if let Some(secs) = cmd.arg_i64(i + 1) { |
| 62 | ttl_ms = (secs as u64) * 1000; |
| 63 | i += 2; |
| 64 | } else { |
| 65 | return RespValue::err("ERR value is not an integer or out of range"); |
| 66 | } |
| 67 | } |
| 68 | Some(ref flag) if flag == "PX" => { |
| 69 | if let Some(ms) = cmd.arg_i64(i + 1) { |
| 70 | ttl_ms = ms as u64; |
| 71 | i += 2; |
| 72 | } else { |
| 73 | return RespValue::err("ERR value is not an integer or out of range"); |
| 74 | } |
| 75 | } |
| 76 | Some(ref flag) if flag == "NX" => { |
| 77 | nx = true; |
| 78 | i += 1; |
| 79 | } |
| 80 | Some(ref flag) if flag == "XX" => { |
| 81 | xx = true; |
| 82 | i += 1; |
| 83 | } |
| 84 | _ => { |
| 85 | return RespValue::err(format!( |
| 86 | "ERR syntax error at '{}'", |
| 87 | cmd.arg_str(i).unwrap_or("?") |
| 88 | )); |
| 89 | } |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | // NX/XX conditional write: check existence first. |
| 94 | if nx || xx { |
| 95 | let check = PhysicalPlan::Kv(KvOp::Get { |
| 96 | collection: session.collection.clone(), |
| 97 | key: key.clone(), |
| 98 | rls_filters: Vec::new(), |