1 files changed, 47 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/mqlocal.h b/newlib/libc/sys/linux/mqlocal.h
new file mode 100644
index 000000000..56fd66c2d
--- /dev/null
+++ b/newlib/libc/sys/linux/mqlocal.h
@@ -0,0 +1,47 @@
+/* local definitions needed by mq routines */
+
+#include <sys/msg.h>
+#include <signal.h>
+
+/* a message */
+typedef struct
+{
+  unsigned int type;
+  char text[1];
+} MSG; 
+
+union semun {
+  int val;
+  struct semid_ds *buf;
+  unsigned short  *array;
+} arg;
+
+/*
+ * One of these structures is malloced to describe any open message queue
+ * each time mq_open is called. 
+ */
+
+struct libc_mq;
+
+struct libc_mq {
+  int              index;          /* index of this message queue */
+  int              msgqid;         /* value returned by msgget */
+  int              semid;          /* semaphore id */
+  int              fd;             /* fd of shared memory file */
+  int              oflag;          /* original open flag used */
+  int              th;             /* thread id for mq_notify */
+  char            *name;           /* name used */
+  MSG             *wrbuf;          /* msg write buffer */
+  MSG             *rdbuf;          /* msg read buffer */
+  struct mq_attr  *attr;           /* pointer to attribute structure */
+  struct sigevent *sigevent;       /* used for mq_notify */
+  void (*cleanup_notify)(struct libc_mq *); /* also used for mq_notify */
+  struct libc_mq  *next;           /* next info struct in hash table */
+};
+
+extern struct libc_mq *__find_mq (mqd_t mq);
+extern void __cleanup_mq (mqd_t mq);
+extern void __cleanup_mq_notify (struct libc_mq *ptr);
+
+#define MSGQ_PREFIX "/dev/shm/__MSGQ__"
+