Commit missing kernel interface definitions for async I/O calls.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2486

diff --git a/include/vg_kerneliface.h b/include/vg_kerneliface.h
index 7ba9b3dcc279b3ac19f745119072c25300809386..6a8c30d84d21db0a51eeeff6fc227448586a2d3f 100644 (file)
--- a/include/vg_kerneliface.h
+++ b/include/vg_kerneliface.h
@@ -882,6 +882,64 @@ struct elf_prpsinfo
        char    pr_psargs[ELF_PRARGSZ]; /* initial part of arg list */
 };
 
+/*
+ * linux/aio_abi.h
+ */
+
+typedef struct {
+       unsigned        id;     /* kernel internal index number */
+       unsigned        nr;     /* number of io_events */
+       unsigned        head;
+       unsigned        tail;
+ 
+       unsigned        magic;
+       unsigned        compat_features;
+       unsigned        incompat_features;
+       unsigned        header_length;  /* size of aio_ring */  
+} vki_aio_ring ;
+
+typedef vki_aio_ring *vki_aio_context_t;
+
+typedef struct {
+    ULong data;
+    ULong obj;
+    Long  result;
+    Long  result2;
+} vki_io_event;
+
+typedef struct {
+       /* these are internal to the kernel/libc. */
+       ULong   aio_data;       /* data to be returned in event's data */
+        ULong  aio_key;
+                               /* the kernel sets aio_key to the req # */
+
+       /* common fields */
+        UShort aio_lio_opcode; /* see IOCB_CMD_ above */
+       UShort  aio_reqprio;
+       UInt    aio_fildes;
+
+       ULong   aio_buf;
+       ULong   aio_nbytes;
+       Long    aio_offset;
+
+       /* extra parameters */
+       ULong   aio_reserved2;  /* TODO: use this for a (struct sigevent *) */
+       ULong   aio_reserved3;
+} vki_iocb; /* 64 bytes */
+
+enum {
+    VKI_IOCB_CMD_PREAD = 0,
+    VKI_IOCB_CMD_PWRITE = 1,
+    VKI_IOCB_CMD_FSYNC = 2,
+    VKI_IOCB_CMD_FDSYNC = 3,
+    /* These two are experimental.
+     * IOCB_CMD_PREADX = 4,
+     * IOCB_CMD_POLL = 5,
+     */
+    VKI_IOCB_CMD_NOOP = 6,
+};
+
+
 #endif /*  __VG_KERNELIFACE_H */
 
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