Initial population of solana-program-sdk

sdk/src/entrypoint_deprecated.rs

@@ -1,39 +1,10 @@
-//! @brief Solana Rust-based BPF program entry point supported by the original
-//!  and now deprecated BPFLoader.  For more information see
-//!  './bpf_loader_deprecated.rs'
+pub use solana_program_sdk::entrypoint_deprecated::*;
 
-extern crate alloc;
-use crate::{account_info::AccountInfo, program_error::ProgramError, pubkey::Pubkey};
-use alloc::vec::Vec;
-use std::{
-    cell::RefCell,
-    mem::size_of,
-    rc::Rc,
-    // Hide Result from bindgen gets confused about generics in non-generic type declarations
-    result::Result as ResultGeneric,
-    slice::{from_raw_parts, from_raw_parts_mut},
-};
-
-pub type ProgramResult = ResultGeneric<(), ProgramError>;
-
-/// User implemented function to process an instruction
-///
-/// program_id: Program ID of the currently executing program
-/// accounts: Accounts passed as part of the instruction
-/// instruction_data: Instruction data
-pub type ProcessInstruction =
-    fn(program_id: &Pubkey, accounts: &[AccountInfo], instruction_data: &[u8]) -> ProgramResult;
-
-/// Programs indicate success with a return value of 0
-pub const SUCCESS: u64 = 0;
-
-/// Declare the entry point of the program.
-///
-/// Deserialize the program input arguments and call
-/// the user defined `process_instruction` function.
-/// Users must call this macro otherwise an entry point for
-/// their program will not be created.
 #[macro_export]
+#[deprecated(
+    since = "1.4.3",
+    note = "use solana_program_sdk::entrypoint::entrypoint instead"
+)]
 macro_rules! entrypoint_deprecated {
     ($process_instruction:ident) => {
         /// # Safety
@@ -48,90 +19,3 @@ macro_rules! entrypoint_deprecated {
         }
     };
 }
-
-/// Deserialize the input arguments
-///
-/// # Safety
-#[allow(clippy::type_complexity)]
-pub unsafe fn deserialize<'a>(input: *mut u8) -> (&'a Pubkey, Vec<AccountInfo<'a>>, &'a [u8]) {
-    let mut offset: usize = 0;
-
-    // Number of accounts present
-
-    #[allow(clippy::cast_ptr_alignment)]
-    let num_accounts = *(input.add(offset) as *const u64) as usize;
-    offset += size_of::<u64>();
-
-    // Account Infos
-
-    let mut accounts = Vec::with_capacity(num_accounts);
-    for _ in 0..num_accounts {
-        let dup_info = *(input.add(offset) as *const u8);
-        offset += size_of::<u8>();
-        if dup_info == std::u8::MAX {
-            #[allow(clippy::cast_ptr_alignment)]
-            let is_signer = *(input.add(offset) as *const u8) != 0;
-            offset += size_of::<u8>();
-
-            #[allow(clippy::cast_ptr_alignment)]
-            let is_writable = *(input.add(offset) as *const u8) != 0;
-            offset += size_of::<u8>();
-
-            let key: &Pubkey = &*(input.add(offset) as *const Pubkey);
-            offset += size_of::<Pubkey>();
-
-            #[allow(clippy::cast_ptr_alignment)]
-            let lamports = Rc::new(RefCell::new(&mut *(input.add(offset) as *mut u64)));
-            offset += size_of::<u64>();
-
-            #[allow(clippy::cast_ptr_alignment)]
-            let data_len = *(input.add(offset) as *const u64) as usize;
-            offset += size_of::<u64>();
-
-            let data = Rc::new(RefCell::new({
-                from_raw_parts_mut(input.add(offset), data_len)
-            }));
-            offset += data_len;
-
-            let owner: &Pubkey = &*(input.add(offset) as *const Pubkey);
-            offset += size_of::<Pubkey>();
-
-            #[allow(clippy::cast_ptr_alignment)]
-            let executable = *(input.add(offset) as *const u8) != 0;
-            offset += size_of::<u8>();
-
-            #[allow(clippy::cast_ptr_alignment)]
-            let rent_epoch = *(input.add(offset) as *const u64);
-            offset += size_of::<u64>();
-
-            accounts.push(AccountInfo {
-                is_signer,
-                is_writable,
-                key,
-                lamports,
-                data,
-                owner,
-                executable,
-                rent_epoch,
-            });
-        } else {
-            // Duplicate account, clone the original
-            accounts.push(accounts[dup_info as usize].clone());
-        }
-    }
-
-    // Instruction data
-
-    #[allow(clippy::cast_ptr_alignment)]
-    let instruction_data_len = *(input.add(offset) as *const u64) as usize;
-    offset += size_of::<u64>();
-
-    let instruction_data = { from_raw_parts(input.add(offset), instruction_data_len) };
-    offset += instruction_data_len;
-
-    // Program Id
-
-    let program_id: &Pubkey = &*(input.add(offset) as *const Pubkey);
-
-    (program_id, accounts, instruction_data)
-}