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sysvipc: Split out linux struct semid_ds

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This will allow us to have architectures specify their own version.

Not semantic changes expected.  Checked with a build against the
all affected ABIs.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella
2020-06-29 18:21:14 -03:00
parent dba950e317
commit 078a892085
3 changed files with 58 additions and 33 deletions
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39
sysdeps/unix/sysv/linux/bits/msq.h
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@@ -20,7 +20,12 @@
#endif
#include <bits/types.h>
#include <bits/msq-pad.h>
/* Types used in the MSQID_DS structure definition. */
typedef __syscall_ulong_t msgqnum_t;
typedef __syscall_ulong_t msglen_t;
#include <bits/types/struct_msqid_ds.h>
/* Define options for message queue functions. */
#define MSG_NOERROR 010000 /* no error if message is too big */
@@ -29,38 +34,6 @@
# define MSG_COPY 040000 /* copy (not remove) all queue messages */
#endif
/* Types used in the structure definition. */
typedef __syscall_ulong_t msgqnum_t;
typedef __syscall_ulong_t msglen_t;
#if __MSQ_PAD_BEFORE_TIME
# define __MSQ_PAD_TIME(NAME, RES) \
unsigned long int __glibc_reserved ## RES; __time_t NAME
#elif __MSQ_PAD_AFTER_TIME
# define __MSQ_PAD_TIME(NAME, RES) \
__time_t NAME; unsigned long int __glibc_reserved ## RES
#else
# define __MSQ_PAD_TIME(NAME, RES) \
__time_t NAME
#endif
/* Structure of record for one message inside the kernel.
The type `struct msg' is opaque. */
struct msqid_ds
{
struct ipc_perm msg_perm; /* structure describing operation permission */
__MSQ_PAD_TIME (msg_stime, 1); /* time of last msgsnd command */
__MSQ_PAD_TIME (msg_rtime, 2); /* time of last msgrcv command */
__MSQ_PAD_TIME (msg_ctime, 3); /* time of last change */
__syscall_ulong_t __msg_cbytes; /* current number of bytes on queue */
msgqnum_t msg_qnum; /* number of messages currently on queue */
msglen_t msg_qbytes; /* max number of bytes allowed on queue */
__pid_t msg_lspid; /* pid of last msgsnd() */
__pid_t msg_lrpid; /* pid of last msgrcv() */
__syscall_ulong_t __glibc_reserved4;
__syscall_ulong_t __glibc_reserved5;
};
#ifdef __USE_MISC
# define msg_cbytes __msg_cbytes