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exit_early #18

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12 changes: 12 additions & 0 deletions include/hostio.h
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Original file line number Diff line number Diff line change
Expand Up @@ -305,6 +305,18 @@ VM_HOOK(read_return_data) size_t read_return_data(uint8_t * dest, size_t offset,
*/
VM_HOOK(write_result) void write_result(const uint8_t * data, size_t len);

/**
* Exits program execution early with the given status code.
* If `0`, the program returns successfully with any data supplied by `write_result`.
* Otherwise, the program reverts and treats any `write_result` data as revert data.
*
* The semantics are equivalent to that of the EVM's [`Return`] and [`Revert`] opcodes.
*
* [`Return`]: https://www.evm.codes/#f3
* [`Revert`]: https://www.evm.codes/#fd
*/
VM_HOOK(exit_early) void exit_early(uint32_t status);

/**
* Returns the length of the last EVM call or deployment return result, or `0` if neither have
* happened during the program's execution. The semantics are equivalent to that of the EVM's
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