From 45495090aa6bc285446174d46ad8e1bef8551ca1 Mon Sep 17 00:00:00 2001
From: Jeff Moyer <jmoyer@redhat.com>
Date: Tue, 30 Mar 2004 22:04:57 +0000
Subject: o Fix header file to allow inclusion from c++ code. o Fix
 compatibility routines, thanks to Daniel @ osdl. o Shared library is now
 libaio.so.1.0.0 and links are created for   libaio.so.1 and libaio.so.

---
 src/Makefile     |  3 ++-
 src/compat-0_1.c | 34 ++++++++++++++++++++++++++++++++--
 src/libaio.h     | 11 ++++++++++-
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index 9971d40..a1d6c84 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -8,7 +8,7 @@ SO_CFLAGS=-shared $(CFLAGS)
 L_CFLAGS=$(CFLAGS)
 LINK_FLAGS=
 
-soname=libaio.so.1
+soname=libaio.so.1.0.0
 all_targets += libaio.a $(soname)
 
 all: $(all_targets)
@@ -51,6 +51,7 @@ install: $(all_targets)
 	install -D -m 644 libaio.h $(includedir)/libaio.h
 	install -D -m 644 libaio.a $(libdir)/libaio.a
 	install -D -m 755 $(soname) $(libdir)/$(soname)
+	ln -sf $(soname) $(libdir)/libaio.so.1
 	ln -sf $(soname) $(libdir)/libaio.so
 
 $(libaio_objs): libaio.h
diff --git a/src/compat-0_1.c b/src/compat-0_1.c
index d689bff..343a33f 100644
--- a/src/compat-0_1.c
+++ b/src/compat-0_1.c
@@ -27,6 +27,28 @@
 #include "syscall.h"
 
 
+/*
+ * Compatible interfaces that still need an entry point.
+ */
+
+SYMVER(compat0_1_io_queue_init, io_queue_init, 0.1);
+int compat0_1_io_queue_init(int maxevents, io_context_t *ctxp)
+{
+	return io_queue_init(maxevents, ctxp);
+}
+
+SYMVER(compat0_1_io_queue_run, io_queue_run, 0.1);
+int compat0_1_io_queue_run(io_context_t ctx)
+{
+	return io_queue_run(ctx);
+}
+
+SYMVER(compat0_1_io_submit, io_submit, 0.1);
+int compat0_1_io_submit(io_context_t ctx, long nr, struct iocb **iocbs)
+{
+	return io_submit(ctx, nr, iocbs);
+}
+
 /* ABI change.  Provide partial compatibility on this one for now. */
 SYMVER(compat0_1_io_cancel, io_cancel, 0.1);
 int compat0_1_io_cancel(io_context_t ctx, struct iocb *iocb)
@@ -38,11 +60,19 @@ int compat0_1_io_cancel(io_context_t ctx, struct iocb *iocb)
 }
 
 SYMVER(compat0_1_io_queue_wait, io_queue_wait, 0.1);
-int compat0_1_io_queue_wait(io_context_t ctx, struct iocb *iocb, const struct timespec *when)
+int compat0_1_io_queue_wait(io_context_t ctx, struct timespec *when)
 {
-	return -ENOSYS;
+	struct timespec timeout;
+	if (when)
+		timeout = *when;
+	return io_getevents(ctx, 0, 0, NULL, when ? &timeout : NULL);
 }
 
+SYMVER(compat0_1_io_queue_release, io_queue_release, 0.1);
+int compat0_1_io_queue_release(io_context_t ctx)
+{
+	return io_destroy(ctx);
+}
 
 /* ABI change.  Provide backwards compatibility for this one. */
 SYMVER(compat0_1_io_getevents, io_getevents, 0.1);
diff --git a/src/libaio.h b/src/libaio.h
index fd2e626..c78a1eb 100644
--- a/src/libaio.h
+++ b/src/libaio.h
@@ -22,6 +22,11 @@
  */
 #ifndef __LIBAIO_H
 #define __LIBAIO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include <sys/types.h>
 #include <string.h>
 
@@ -139,7 +144,7 @@ extern int io_getevents(io_context_t ctx_id, long min_nr, long nr, struct io_eve
 
 static inline void io_set_callback(struct iocb *iocb, io_callback_t cb)
 {
-	iocb->data = cb;
+	iocb->data = (void *)cb;
 }
 
 static inline void io_prep_pread(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
@@ -210,4 +215,8 @@ static inline int io_fdsync(io_context_t ctx, struct iocb *iocb, io_callback_t c
 	return io_submit(ctx, 1, &iocb);
 }
 
+#ifdef __cplusplus
+}
 #endif
+
+#endif /* __LIBAIO_H */
-- 
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