embeddedsw/lib/bsp/xilkernel/src/syscall/libmsgq.c
Jagannadha Sutradharudu Teki 2c8f92039d embeddesw: Add initial code support
Added initial support Xilinx Embedded Software.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-06-24 16:45:01 +05:30

63 lines
2.8 KiB
C
Executable file

/******************************************************************************
*
* Copyright (C) 2010 - 2014 Xilinx, Inc. All rights reserved.
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* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
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*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
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******************************************************************************/
//----------------------------------------------------------------------------------------------------//
//! @file libmsgq.c
//! This contains system call wrapper functions for Message Queue.
//----------------------------------------------------------------------------------------------------//
#include <os_config.h>
#include <sys/syscall.h>
#include <sys/msg.h>
#include <sys/kmsg.h>
extern void* make_syscall (void *arg1, void *arg2, void *arg3, void *arg4, void *arg5, int syscall_num);
#ifdef CONFIG_MSGQ
int msgget(key_t key, int msgflg)
{
return (int) make_syscall ((void*)key, (void*)msgflg, NULL, NULL, NULL, SC_MSGGET);
}
int msgctl(int msqid, int cmd, struct msqid_ds *buf)
{
return (int) make_syscall ((void*)msqid, (void*)cmd, (void*)buf, NULL, NULL, SC_MSGCTL);
}
int msgsnd(int msqid, const void *msgp, size_t msgsz, int msgflg)
{
return (int) make_syscall ((void*)msqid, (void*)msgp, (void*)msgsz, (void*)msgflg, NULL, SC_MSGSND);
}
ssize_t msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
{
return (ssize_t) make_syscall ((void*)msqid, (void*)msgp, (void*)msgsz, (void*)msgtyp, (void*)msgflg, SC_MSGRCV);
}
#endif /* CONFIG_MSGQ */