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remove new alloc on deserialization (#15636)

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This commit is contained in:
Jeff Washington (jwash)
2021-03-23 14:52:59 -05:00
committed by GitHub
parent e7fd7d46cf
commit 6f5d8d18e9
2 changed files with 10 additions and 1 deletions
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5
programs/bpf_loader/src/serialization.rs
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@ -251,7 +251,10 @@ pub fn deserialize_parameters_aligned(
+ size_of::<u8>() // executable + size_of::<u8>() // executable
+ 4 // padding to 128-bit aligned + 4 // padding to 128-bit aligned
+ size_of::<Pubkey>(); // key + size_of::<Pubkey>(); // key
account.owner = Pubkey::new(&buffer[start..start + size_of::<Pubkey>()]); account
.owner
.as_mut()
.copy_from_slice(&buffer[start..start + size_of::<Pubkey>()]);
start += size_of::<Pubkey>(); // owner start += size_of::<Pubkey>(); // owner
account.lamports = LittleEndian::read_u64(&buffer[start..]); account.lamports = LittleEndian::read_u64(&buffer[start..]);
start += size_of::<u64>(); // lamports start += size_of::<u64>(); // lamports

6
sdk/program/src/pubkey.rs
View File

@ -325,6 +325,12 @@ impl AsRef<[u8]> for Pubkey {
} }
} }
impl AsMut<[u8]> for Pubkey {
fn as_mut(&mut self) -> &mut [u8] {
&mut self.0[..]
}
}
impl fmt::Debug for Pubkey { impl fmt::Debug for Pubkey {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", bs58::encode(self.0).into_string()) write!(f, "{}", bs58::encode(self.0).into_string())