Fix struct size discrepancy by specifying enum representation #115 #117
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This commit resolves a size discrepancy issue observed with structs derived from the Pyth SDK when executed on Solana's runtime vs off-chain. The use of `#[repr(C)]` in enum definitions, leading to an unexpected increase in struct sizes when compiled for the Solana BPF target, causing the SDK to fail deserialization. The account size for std::mem::size_of::<SolanaPriceAccount>() returned 3840, when the correct size is 3312. By changing the enum representation from `#[repr(C)]` to `#[repr(u8)]`, we ensure a consistent and minimal size for the enums across both execution environments.
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Reisen
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Mar 13, 2024
guibescos
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Same as #115.
This commit resolves a size discrepancy issue observed with structs derived from the Pyth SDK when executed on Solana's runtime vs off-chain. The use of #[repr(C)] in enum definitions, leading to an unexpected increase in struct sizes when compiled for the Solana BPF target, causing the SDK to fail deserialization.
The account size for std::mem::size_of::() returned 3840, when the correct size is 3312.
By changing the enum representation from #[repr(C)] to #[repr(u8)], we ensure a consistent and minimal size for the enums across both execution environments.