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#include <errno.h>
#include <sys/msg.h>
#include "ipc.h"
#ifdef L_msgctl
#ifdef __NR_msgctl
#define __NR___libc_msgctl __NR_msgctl
static __inline__ _syscall3(int, __libc_msgctl, int, msqid, int, cmd, struct msqid_ds *, buf);
#endif
/* Message queue control operation. */
int msgctl(int msqid, int cmd, struct msqid_ds *buf)
{
#ifdef __NR_msgctl
return __libc_msgctl(msqid, cmd | __IPC_64, buf);
#else
return __syscall_ipc(IPCOP_msgctl, msqid, cmd | __IPC_64, 0, buf, 0);
#endif
}
#endif
#ifdef L_msgget
#ifdef __NR_msgget
_syscall2(int, msgget, key_t, key, int, msgflg)
#else
/* Get messages queue. */
int msgget (key_t key, int msgflg)
{
return __syscall_ipc(IPCOP_msgget ,key ,msgflg ,0 ,0, 0);
}
#endif
#endif
struct new_msg_buf{
struct msgbuf * oldmsg;
long int r_msgtyp; /* the fifth arg of __syscall_ipc */
};
/* Receive message from message queue. */
#ifdef L_msgrcv
#ifdef __NR_msgrcv
_syscall5(int, msgrcv, int, msqid, void *, msgp, size_t, msgsz, long int, msgtyp, int, msgflg)
#else
int msgrcv (int msqid, void *msgp, size_t msgsz,
long int msgtyp, int msgflg)
{
struct new_msg_buf temp;
temp.r_msgtyp = msgtyp;
temp.oldmsg = msgp;
return __syscall_ipc(IPCOP_msgrcv ,msqid ,msgsz ,msgflg ,&temp, 0);
}
#endif
#endif
#ifdef L_msgsnd
#ifdef __NR_msgsnd
_syscall4(int, msgsnd, int, msqid, const void *, msgp, size_t, msgsz, int, msgflg)
#else
/* Send message to message queue. */
int msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg)
{
return __syscall_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, (void *)msgp, 0);
}
#endif
#endif
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