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linux-user: Added posix message queue syscalls except mq_notify

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Signed-off-by: Lionel Landwerlin <lionel.landwerlin@openwide.fr>
Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7114 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-04-15 16:11:43 +00:00
parent a3a1e0fc53
commit 24e1003a52
3 changed files with 126 additions and 6 deletions
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113
linux-user/syscall.c
View file

@ -29,6 +29,7 @@
#include <fcntl.h>
#include <time.h>
#include <limits.h>
#include <mqueue.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
@ -635,6 +636,43 @@ static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr,
return 0;
}
static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr,
abi_ulong target_mq_attr_addr)
{
struct target_mq_attr *target_mq_attr;
if (!lock_user_struct(VERIFY_READ, target_mq_attr,
target_mq_attr_addr, 1))
return -TARGET_EFAULT;
__get_user(attr->mq_flags, &target_mq_attr->mq_flags);
__get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
__get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
__get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0);
return 0;
}
static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr,
const struct mq_attr *attr)
{
struct target_mq_attr *target_mq_attr;
if (!lock_user_struct(VERIFY_WRITE, target_mq_attr,
target_mq_attr_addr, 0))
return -TARGET_EFAULT;
__put_user(attr->mq_flags, &target_mq_attr->mq_flags);
__put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg);
__put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize);
__put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs);
unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1);
return 0;
}
/* do_select() must return target values and target errnos. */
static abi_long do_select(int n,
@ -6148,6 +6186,81 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#endif
#ifdef TARGET_NR_mq_open
case TARGET_NR_mq_open:
{
struct mq_attr posix_mq_attr;
p = lock_user_string(arg1 - 1);
if (arg4 != 0)
copy_from_user_mq_attr (&posix_mq_attr, arg4);
ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr));
unlock_user (p, arg1, 0);
}
break;
case TARGET_NR_mq_unlink:
p = lock_user_string(arg1 - 1);
ret = get_errno(mq_unlink(p));
unlock_user (p, arg1, 0);
break;
case TARGET_NR_mq_timedsend:
{
struct timespec ts;
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
target_to_host_timespec(&ts, arg5);
ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts));
host_to_target_timespec(arg5, &ts);
}
else
ret = get_errno(mq_send(arg1, p, arg3, arg4));
unlock_user (p, arg2, arg3);
}
break;
case TARGET_NR_mq_timedreceive:
{
struct timespec ts;
unsigned int prio;
p = lock_user (VERIFY_READ, arg2, arg3, 1);
if (arg5 != 0) {
target_to_host_timespec(&ts, arg5);
ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts));
host_to_target_timespec(arg5, &ts);
}
else
ret = get_errno(mq_receive(arg1, p, arg3, &prio));
unlock_user (p, arg2, arg3);
if (arg4 != 0)
put_user_u32(prio, arg4);
}
break;
/* Not implemented for now... */
/* case TARGET_NR_mq_notify: */
/* break; */
case TARGET_NR_mq_getsetattr:
{
struct mq_attr posix_mq_attr_in, posix_mq_attr_out;
ret = 0;
if (arg3 != 0) {
ret = mq_getattr(arg1, &posix_mq_attr_out);
copy_to_user_mq_attr(arg3, &posix_mq_attr_out);
}
if (arg2 != 0) {
copy_from_user_mq_attr(&posix_mq_attr_in, arg2);
ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out);
}
}
break;
#endif
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);