Merge pull request #3 from avianlabs/add-compute-budget-program

add compute budget program

solana-kotlin/src/commonMain/kotlin/net/avianlabs/solana/domain/program/ComputeBudgetProgram.kt

@@ -0,0 +1,37 @@
+package net.avianlabs.solana.domain.program
+
+import net.avianlabs.solana.domain.core.PublicKey
+import net.avianlabs.solana.domain.core.TransactionInstruction
+import okio.Buffer
+
+private val TOKEN_PROGRAM_ID = PublicKey.fromBase58("ComputeBudget111111111111111111111111111111")
+
+public object ComputeBudgetProgram : Program(
+  programId = TOKEN_PROGRAM_ID,
+) {
+
+  public enum class Instruction(
+    public val index: UByte,
+  ) {
+    RequestUnits(0u),
+    RequestHeapFrames(1u),
+    SetComputeUnitLimit(2u),
+    SetComputeUnitPrice(3u),
+    ;
+  }
+
+  /**
+   * @param microLamports Transaction compute unit price used for prioritization fees.
+   */
+  public fun setComputeUnitPrice(
+    microLamports: ULong,
+  ): TransactionInstruction = createTransactionInstruction(
+    programId = programId,
+    keys = listOf(
+    ),
+    data = Buffer()
+      .writeByte(Instruction.SetComputeUnitPrice.index.toInt())
+      .writeLongLe(microLamports.toLong())
+      .readByteArray(),
+  )
+}