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authorEric Andersen <andersen@codepoet.org>2001-05-26 00:00:27 +0000
committerEric Andersen <andersen@codepoet.org>2001-05-26 00:00:27 +0000
commit9799b984482f7ce54d7f627561539116eb9931ca (patch)
tree7fc63291aea6e5902ad9a0bf5f0fb2345db69be2 /libc
parentb1117fc3109dd2b13d5bbbb57043f67d1105fbe3 (diff)
Add in message queue support, based on work from <tapu@371.net>.
This is required to compile util-linux
Diffstat (limited to 'libc')
-rw-r--r--libc/misc/sysvipc/Makefile9
-rw-r--r--libc/misc/sysvipc/msgq.c52
2 files changed, 60 insertions, 1 deletions
diff --git a/libc/misc/sysvipc/Makefile b/libc/misc/sysvipc/Makefile
index d94531788..8280137ca 100644
--- a/libc/misc/sysvipc/Makefile
+++ b/libc/misc/sysvipc/Makefile
@@ -31,10 +31,13 @@ MOBJ=semget.o semctl.o semop.o
MSRC2=shm.c
MOBJ2=shmat.o shmctl.o shmdt.o shmget.o
+MSRC3=msgq.c
+MOBJ3=msgctl.o msgget.o msgrcv.o msgsnd.o
+
CSRC = ftok.c
COBJS=$(patsubst %.c,%.o, $(CSRC))
-OBJS=$(MOBJ) $(MOBJ2) $(COBJS)
+OBJS=$(MOBJ) $(MOBJ2) $(MOBJ3) $(COBJS)
all: $(OBJS) $(LIBC)
@@ -52,6 +55,10 @@ $(MOBJ2): $(MSRC2)
$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
$(STRIPTOOL) -x -R .note -R .comment $*.o
+$(MOBJ3): $(MSRC3)
+ $(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
$(COBJS): %.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
diff --git a/libc/misc/sysvipc/msgq.c b/libc/misc/sysvipc/msgq.c
new file mode 100644
index 000000000..f373c1611
--- /dev/null
+++ b/libc/misc/sysvipc/msgq.c
@@ -0,0 +1,52 @@
+#include <errno.h>
+#include <sys/msg.h>
+#include "ipc.h"
+
+
+#ifdef L_msgctl
+/* Message queue control operation. */
+int msgctl (int msqid, int cmd, struct msqid_ds *buf)
+{
+ return __ipc(IPCOP_msgctl ,msqid ,cmd ,0 ,buf);
+}
+#endif
+
+
+#ifdef L_msgget
+/* Get messages queue. */
+int msgget (key_t key, int msgflg)
+{
+ return __ipc(IPCOP_msgget ,key ,msgflg ,0 ,0);
+}
+#endif
+
+
+struct new_msg_buf{
+ struct msgbuf * oldmsg;
+ long int r_msgtyp; /* the fifth arg of __ipc */
+};
+/* Receive message from message queue. */
+
+
+#ifdef L_msgrcv
+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 __ipc(IPCOP_msgrcv ,msqid ,msgsz ,msgflg ,&temp);
+}
+#endif
+
+
+
+#ifdef L_msgsnd
+/* Send message to message queue. */
+int msgsnd (int msqid, const void *msgp, size_t msgsz, int msgflg)
+{
+ return __ipc(IPCOP_msgsnd, msqid, msgsz, msgflg, (void *)msgp);
+}
+#endif
+