packman-0.3.0: cbits/Errors.h

#ifndef ERRORS_H
#define ERRORS_H

/*
 * Return codes for the packing routine (rts/parallel/Pack.c)
 * Must be in sync with library code.
 * We need them here for use in Cmm code in PrimOps.cmm
 */
#define P_SUCCESS        0x00 /* used for return value of PackToMemory only */
#define P_BLACKHOLE      0x01 /* possibly also blocking the packing thread */
#define P_NOBUFFER       0x02 /* buffer too small */
#define P_CANNOTPACK     0x03 /* type cannot be packed (MVar, TVar) */
#define P_UNSUPPORTED    0x04 /* type not supported (but could/should be) */
#define P_IMPOSSIBLE     0x05 /* impossible type found (stack frame,msg, etc) */
#define P_GARBLED        0x06 /* invalid data for deserialisation */
// for completeness, we also include the Haskell error codes here:
#define P_ParseError     0x07 /* Packet parse error */
#define P_BinaryMismatch 0x08 /* Executable binaries do not match */
#define P_TypeMismatch   0x09 /* Packet data has unexpected type */

#undef P_ERRCODEMAX
#define P_ERRCODEMAX     0x09

// predicate for checks:
#define isPackError(bufptr) (((StgWord) (bufptr)) <= P_ERRCODEMAX)

#endif