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authorAustin Foxley <austinf@cetoncorp.com>2009-10-17 14:32:36 -0700
committerAustin Foxley <austinf@cetoncorp.com>2009-10-17 14:32:36 -0700
commit57e8823548ad6e65d33b2153edeb18fb0edc20e6 (patch)
tree8cfc6fea89ec4e90c94b5764233ee2b2ed9cc54d /libc/misc/sysvipc/msgq.c
parent9a737ab7a40984cfdfffd014562a220a3736a10f (diff)
cancellation support for a large amount of the required syscalls
Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libc/misc/sysvipc/msgq.c')
-rw-r--r--libc/misc/sysvipc/msgq.c53
1 files changed, 46 insertions, 7 deletions
diff --git a/libc/misc/sysvipc/msgq.c b/libc/misc/sysvipc/msgq.c
index e43a9ed04..d67645a4d 100644
--- a/libc/misc/sysvipc/msgq.c
+++ b/libc/misc/sysvipc/msgq.c
@@ -1,6 +1,11 @@
#include <errno.h>
#include <sys/msg.h>
#include "ipc.h"
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+#include "sysdep-cancel.h"
+#else
+#define SINGLE_THREAD_P 1
+#endif
#ifdef L_msgctl
@@ -43,31 +48,65 @@ struct new_msg_buf{
#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)
+#define __NR___syscall_msgrcv __NR_msgrcv
+static inline _syscall5(int, __syscall_msgrcv, int, msqid, void *, msgp,
+ size_t, msgsz, long int, msgtyp, int, msgflg)
+#endif
+static inline int do_msgrcv (int msqid, void *msgp, size_t msgsz,
+ long int msgtyp, int msgflg)
{
+#ifdef __NR_msgrcv
+ return __syscall_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);
+#else
struct new_msg_buf temp;
temp.r_msgtyp = msgtyp;
temp.oldmsg = msgp;
return __syscall_ipc(IPCOP_msgrcv ,msqid ,msgsz ,msgflg ,&temp, 0);
+#endif
}
+int msgrcv (int msqid, void *msgp, size_t msgsz,
+ long int msgtyp, int msgflg)
+{
+ if (SINGLE_THREAD_P)
+ return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ int result = do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
#endif
+}
#endif
#ifdef L_msgsnd
#ifdef __NR_msgsnd
-_syscall4(int, msgsnd, int, msqid, const void *, msgp, size_t, msgsz, int, msgflg)
-#else
+#define __NR___syscall_msgsnd __NR_msgsnd
+static inline _syscall4(int, __syscall_msgsnd, int, msqid, const void *, msgp,
+ size_t, msgsz, int, msgflg)
+#endif
/* Send message to message queue. */
-int msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg)
+static inline int do_msgsnd (int msqid, const void *msgp, size_t msgsz,
+ int msgflg)
{
+#ifdef __NR_msgsnd
+ return __syscall_msgsnd(msqid, msgp, msgsz, msgflg);
+#else
return __syscall_ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, (void *)msgp, 0);
+#endif
}
+int msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg)
+{
+ if (SINGLE_THREAD_P)
+ return do_msgsnd(msqid, msgp, msgsz, msgflg);
+#ifdef __UCLIBC_HAS_THREADS_NATIVE__
+ int oldtype = LIBC_CANCEL_ASYNC ();
+ int result = do_msgsnd(msqid, msgp, msgsz, msgflg);
+ LIBC_CANCEL_RESET (oldtype);
+ return result;
#endif
+}
#endif