1 /* 2 * SYS/SYSMSG.H 3 * 4 * $DragonFly: src/sys/sys/sysmsg.h,v 1.10 2006/06/07 03:02:11 dillon Exp $ 5 */ 6 7 #ifndef _SYS_SYSMSG_H_ 8 #define _SYS_SYSMSG_H_ 9 10 #ifdef _KERNEL 11 12 #ifndef _SYS_TYPES_H_ 13 #include <sys/types.h> 14 #endif 15 16 /* 17 * The sysmsg holds the kernelland version of a system call's arguments 18 * and return value. It typically preceeds the syscall arguments in sysunion 19 * (see sys/sysunion.h). 20 */ 21 union sysunion; 22 23 struct sysmsg { 24 union { 25 void *resultp; /* misc pointer data or result */ 26 int result; /* standard 'int'eger result */ 27 long lresult; /* long result */ 28 int fds[2]; /* two int bit results */ 29 __int32_t result32; /* 32 bit result */ 30 __int64_t result64; /* 64 bit result */ 31 __off_t offset; /* off_t result */ 32 } sm_result; 33 }; 34 35 struct lwp; 36 union sysunion; 37 38 #endif 39 40 #ifdef _KERNEL 41 #define sysmsg_result sysmsg.sm_result.result 42 #define sysmsg_lresult sysmsg.sm_result.lresult 43 #define sysmsg_resultp sysmsg.sm_result.resultp 44 #define sysmsg_fds sysmsg.sm_result.fds 45 #define sysmsg_offset sysmsg.sm_result.offset 46 #define sysmsg_result32 sysmsg.sm_result.result32 47 #define sysmsg_result64 sysmsg.sm_result.result64 48 #endif 49 50 #endif 51 52