config

api/src/instruction.rs

@@ -14,9 +14,10 @@ pub enum OreInstruction {
     Withdraw = 7,
 
     // Admin
-    SetAdmin = 10,
-    SetFeeCollector = 9,
-    SetFeeRate = 8,
+    SetAdmin = 8,
+    SetBlockLimit = 9,
+    SetFeeCollector = 10,
+    SetFeeRate = 11,
 }
 
 #[repr(C)]
@@ -76,6 +77,12 @@ pub struct SetAdmin {
     pub admin: [u8; 32],
 }
 
+#[repr(C)]
+#[derive(Clone, Copy, Debug, Pod, Zeroable)]
+pub struct SetBlockLimit {
+    pub block_limit: [u8; 8],
+}
+
 #[repr(C)]
 #[derive(Clone, Copy, Debug, Pod, Zeroable)]
 pub struct SetFeeCollector {
@@ -97,5 +104,6 @@ instruction!(OreInstruction, Swap);
 instruction!(OreInstruction, Uncommit);
 instruction!(OreInstruction, Withdraw);
 instruction!(OreInstruction, SetAdmin);
+instruction!(OreInstruction, SetBlockLimit);
 instruction!(OreInstruction, SetFeeCollector);
 instruction!(OreInstruction, SetFeeRate);

api/src/state/config.rs

@@ -7,9 +7,17 @@ use super::OreAccount;
 #[repr(C)]
 #[derive(Clone, Copy, Debug, PartialEq, Pod, Zeroable)]
 pub struct Config {
+    // The address that can set the admin.
     pub admin: Pubkey,
+
+    // The address that receives fees.
     pub fee_collector: Pubkey,
+
+    // The fee rate taken for each swap.
     pub fee_rate: u64,
+
+    /// Number of blocks that can be open for trading at one time.
+    pub block_limit: u64,
 }
 
 impl Config {