elk/lib/unix/unix.h

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#include "scheme.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <time.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <errno.h>
#ifdef INCLUDE_UNISTD_H
# include <unistd.h>
#endif
extern int errno;
extern char *index();
extern Object Unix_Errobj, V_Call_Errhandler;
extern SYMDESCR Lseek_Syms[];
Object Integer_Pair P_((int, int));
Object Syms_To_List P_((SYMDESCR*));
#define Get_Filename_Or_Filedescr(obj,fd,fn) \
switch (TYPE(obj)) {\
case T_String: case T_Symbol:\
(fn) = Get_Strsym(obj); break;\
case T_Fixnum: case T_Bignum:\
(fd) = Get_Integer(obj); break;\
default:\
Wrong_Type_Combination(obj, "symbol, string, or integer");\
}
#define Raise_System_Error(msg) {\
Saved_Errno = errno;\
Raise_Error(msg);\
}
#define Raise_Error(msg) {\
if (Var_Is_True(V_Call_Errhandler))\
Primitive_Error(msg);\
return Unix_Errobj;\
}
#define Raise_System_Error1(msg,a1) {\
Saved_Errno = errno;\
Raise_Error1(msg,a1);\
}
#define Raise_Error1(msg,a1) {\
if (Var_Is_True(V_Call_Errhandler))\
Primitive_Error(msg,a1);\
return Unix_Errobj;\
}
#define Raise_System_Error2(msg,a1,a2) {\
Saved_Errno = errno;\
Raise_Error2(msg,a1,a2);\
}
#define Raise_Error2(msg,a1,a2) {\
if (Var_Is_True(V_Call_Errhandler))\
Primitive_Error(msg,a1,a2);\
return Unix_Errobj;\
}
#define Def_Prim Define_Primitive