Make evemu ABI resilient

Hide the evemu struct, make it versioned, and instead use new/delete
and accessor functions. This should give us enough ABI stability to
run mixed library implementations.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>

1 files changed, 12 insertions, 7 deletions

diff --git a/tools/evemu-describe.c b/tools/evemu-describe.c
index ec6b1ef..6c6cdab 100644
--- a/tools/evemu-describe.c
+++ b/tools/evemu-describe.c
@@ -26,22 +26,27 @@
  *
  ****************************************************************************/
 
-#include "evemu.h"
+#include <evemu.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <string.h>
 
 static int describe_device(int fd)
 {
-        struct evemu_device dev;
-        int ret;
+        struct evemu_device *dev;
+        int ret = -ENOMEM;
 
-        ret = evemu_extract(&dev, fd);
+        dev = evemu_new(0);
+        if (!dev)
+                goto out;
+        ret = evemu_extract(dev, fd);
         if (ret)
-                return ret;
-        evemu_write(&dev, stdout);
+                goto out;
 
-        return 0;
+        evemu_write(dev, stdout);
+out:
+        evemu_delete(dev);
+        return ret;
 }
 
 int main(int argc, char *argv[])