core: add preadv, pwritev, pread, pwrite syscall wrappers

add additional system calls plus pick up a couple missed unwrapped
system calls that seem to have slipped into the master branch.

Change-Id: If268ccd5e9a139ac3ffd38293c67cd2f62ea5b58
BUG: 1289258
Signed-off-by: Kaleb S KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/12895
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>

2 files changed, 43 insertions, 1 deletions

diff --git a/libglusterfs/src/syscall.c b/libglusterfs/src/syscall.c
index dc257f6cfcc..eb0c1cf983a 100644
--- a/libglusterfs/src/syscall.c
+++ b/libglusterfs/src/syscall.c
@@ -15,6 +15,7 @@
 #include <utime.h>
 #include <sys/time.h>
 #include <fcntl.h>
+#include <unistd.h>
 
 int
 sys_lstat (const char *path, struct stat *buf)
@@ -268,6 +269,34 @@ sys_write (int fd, const void *buf, size_t count)
 }
 
 
+ssize_t
+sys_preadv (int fd, const struct iovec *iov, int iovcnt, off_t offset)
+{
+        return preadv (fd, iov, iovcnt, offset);
+}
+
+
+ssize_t
+sys_pwritev (int fd, const struct iovec *iov, int iovcnt, off_t offset)
+{
+        return pwritev (fd, iov, iovcnt, offset);
+}
+
+
+ssize_t
+sys_pread (int fd, void *buf, size_t count, off_t offset)
+{
+        return pread (fd, buf, count, offset);
+}
+
+
+ssize_t
+sys_pwrite (int fd, const void *buf, size_t count, off_t offset)
+{
+        return pwrite (fd, buf, count, offset);
+}
+
+
 off_t
 sys_lseek (int fd, off_t offset, int whence)
 {
diff --git a/libglusterfs/src/syscall.h b/libglusterfs/src/syscall.h
index 037f6c64acb..10b70927415 100644
--- a/libglusterfs/src/syscall.h
+++ b/libglusterfs/src/syscall.h
@@ -192,6 +192,19 @@ sys_access (const char *pathname, int mode);
 int
 sys_ftruncate (int fd, off_t length);
 
-int sys_fallocate(int fd, int mode, off_t offset, off_t len);
+int
+sys_fallocate(int fd, int mode, off_t offset, off_t len);
+
+ssize_t
+sys_preadv (int fd, const struct iovec *iov, int iovcnt, off_t offset);
+
+ssize_t
+sys_pwritev (int fd, const struct iovec *iov, int iovcnt, off_t offset);
+
+ssize_t
+sys_pread(int fd, void *buf, size_t count, off_t offset);
+
+ssize_t
+sys_pwrite(int fd, const void *buf, size_t count, off_t offset);
 
 #endif /* __SYSCALL_H__ */