1*f80ad8b4SAndroid Build Coastguard Worker /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*f80ad8b4SAndroid Build Coastguard Worker #ifndef __ASM_GENERIC_MSGBUF_H 3*f80ad8b4SAndroid Build Coastguard Worker #define __ASM_GENERIC_MSGBUF_H 4*f80ad8b4SAndroid Build Coastguard Worker 5*f80ad8b4SAndroid Build Coastguard Worker #include <asm/bitsperlong.h> 6*f80ad8b4SAndroid Build Coastguard Worker #include <asm/ipcbuf.h> 7*f80ad8b4SAndroid Build Coastguard Worker 8*f80ad8b4SAndroid Build Coastguard Worker /* 9*f80ad8b4SAndroid Build Coastguard Worker * generic msqid64_ds structure. 10*f80ad8b4SAndroid Build Coastguard Worker * 11*f80ad8b4SAndroid Build Coastguard Worker * Note extra padding because this structure is passed back and forth 12*f80ad8b4SAndroid Build Coastguard Worker * between kernel and user space. 13*f80ad8b4SAndroid Build Coastguard Worker * 14*f80ad8b4SAndroid Build Coastguard Worker * msqid64_ds was originally meant to be architecture specific, but 15*f80ad8b4SAndroid Build Coastguard Worker * everyone just ended up making identical copies without specific 16*f80ad8b4SAndroid Build Coastguard Worker * optimizations, so we may just as well all use the same one. 17*f80ad8b4SAndroid Build Coastguard Worker * 18*f80ad8b4SAndroid Build Coastguard Worker * 64 bit architectures use a 64-bit long time field here, while 19*f80ad8b4SAndroid Build Coastguard Worker * 32 bit architectures have a pair of unsigned long values. 20*f80ad8b4SAndroid Build Coastguard Worker * On big-endian systems, the lower half is in the wrong place. 21*f80ad8b4SAndroid Build Coastguard Worker * 22*f80ad8b4SAndroid Build Coastguard Worker * Pad space is left for: 23*f80ad8b4SAndroid Build Coastguard Worker * - 2 miscellaneous 32-bit values 24*f80ad8b4SAndroid Build Coastguard Worker */ 25*f80ad8b4SAndroid Build Coastguard Worker 26*f80ad8b4SAndroid Build Coastguard Worker struct msqid64_ds { 27*f80ad8b4SAndroid Build Coastguard Worker struct ipc64_perm msg_perm; 28*f80ad8b4SAndroid Build Coastguard Worker #if __BITS_PER_LONG == 64 29*f80ad8b4SAndroid Build Coastguard Worker long msg_stime; /* last msgsnd time */ 30*f80ad8b4SAndroid Build Coastguard Worker long msg_rtime; /* last msgrcv time */ 31*f80ad8b4SAndroid Build Coastguard Worker long msg_ctime; /* last change time */ 32*f80ad8b4SAndroid Build Coastguard Worker #else 33*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_stime; /* last msgsnd time */ 34*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_stime_high; 35*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_rtime; /* last msgrcv time */ 36*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_rtime_high; 37*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_ctime; /* last change time */ 38*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_ctime_high; 39*f80ad8b4SAndroid Build Coastguard Worker #endif 40*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_cbytes; /* current number of bytes on queue */ 41*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_qnum; /* number of messages in queue */ 42*f80ad8b4SAndroid Build Coastguard Worker unsigned long msg_qbytes; /* max number of bytes on queue */ 43*f80ad8b4SAndroid Build Coastguard Worker __kernel_pid_t msg_lspid; /* pid of last msgsnd */ 44*f80ad8b4SAndroid Build Coastguard Worker __kernel_pid_t msg_lrpid; /* last receive pid */ 45*f80ad8b4SAndroid Build Coastguard Worker unsigned long __unused4; 46*f80ad8b4SAndroid Build Coastguard Worker unsigned long __unused5; 47*f80ad8b4SAndroid Build Coastguard Worker }; 48*f80ad8b4SAndroid Build Coastguard Worker 49*f80ad8b4SAndroid Build Coastguard Worker #endif /* __ASM_GENERIC_MSGBUF_H */ 50