feat: v0.2.10 - add PumpFun volume accumulator support

- Bump version to 0.2.10
- Upgrade solana-streamer-sdk to 0.1.8
- Add volume accumulator PDAs and functions

src/constants/pumpfun.rs

@@ -26,6 +26,12 @@ pub mod seeds {
 
     /// Seed for metadata PDAs
     pub const METADATA_SEED: &[u8] = b"metadata";
+
+    /// Seed for user volume accumulator PDAs
+    pub const USER_VOLUME_ACCUMULATOR_SEED: &[u8] = b"user_volume_accumulator";
+
+    /// Seed for global volume accumulator PDAs
+    pub const GLOBAL_VOLUME_ACCUMULATOR_SEED: &[u8] = b"global_volume_accumulator";
 }
 
 pub mod global_constants {

src/instruction/pumpfun.rs

@@ -8,7 +8,7 @@ use spl_token::instruction::close_account;
 use crate::{
     constants,
     trading::pumpfun::common::{
-        get_bonding_curve_pda, get_global_pda, get_metadata_pda, get_mint_authority_pda,
+        get_bonding_curve_pda, get_global_pda, get_global_volume_accumulator_pda, get_metadata_pda, get_mint_authority_pda, get_user_volume_accumulator_pda
     },
 };
 
@@ -198,6 +198,8 @@ pub fn buy(
             AccountMeta::new(*creator_vault_pda, false),
             AccountMeta::new_readonly(constants::pumpfun::accounts::EVENT_AUTHORITY, false),
             AccountMeta::new_readonly(constants::pumpfun::accounts::PUMPFUN, false),
+            AccountMeta::new(get_global_volume_accumulator_pda().unwrap(), false),
+            AccountMeta::new(get_user_volume_accumulator_pda(&payer.pubkey()).unwrap(), false),
         ],
     )
 }

src/trading/pumpfun/common.rs

@@ -62,6 +62,22 @@ pub fn get_creator_vault_pda(creator: &Pubkey) -> Option<Pubkey> {
     pda.map(|pubkey| pubkey.0)
 }
 
+#[inline]
+pub fn get_user_volume_accumulator_pda(user: &Pubkey) -> Option<Pubkey> {
+    let seeds: &[&[u8]; 2] = &[constants::pumpfun::seeds::USER_VOLUME_ACCUMULATOR_SEED, user.as_ref()];
+    let program_id: &Pubkey = &constants::pumpfun::accounts::PUMPFUN;
+    let pda: Option<(Pubkey, u8)> = Pubkey::try_find_program_address(seeds, program_id);
+    pda.map(|pubkey| pubkey.0)
+}
+
+#[inline]
+pub fn get_global_volume_accumulator_pda() -> Option<Pubkey> {
+    let seeds: &[&[u8]; 1] = &[constants::pumpfun::seeds::GLOBAL_VOLUME_ACCUMULATOR_SEED];
+    let program_id: &Pubkey = &constants::pumpfun::accounts::PUMPFUN;
+    let pda: Option<(Pubkey, u8)> = Pubkey::try_find_program_address(seeds, program_id);
+    pda.map(|pubkey| pubkey.0)
+}
+
 #[inline]
 pub fn get_metadata_pda(mint: &Pubkey) -> Pubkey {
     Pubkey::find_program_address(