fix #6276: release the runtime in all stubs that might block

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14384 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

1 files changed, 10 insertions, 2 deletions

diff --git a/otherlibs/unix/chown.c b/otherlibs/unix/chown.c
index a26f7a869..0b118fb40 100644
--- a/otherlibs/unix/chown.c
+++ b/otherlibs/unix/chown.c
@@ -12,12 +12,20 @@
 /***********************************************************************/
 
 #include <mlvalues.h>
+#include <memory.h>
+#include <signals.h>
 #include "unixsupport.h"
 
 CAMLprim value unix_chown(value path, value uid, value gid)
 {
+  CAMLparam1(path);
+  char * p;
   int ret;
-  ret = chown(String_val(path), Int_val(uid), Int_val(gid));
+  p = caml_stat_alloc_string(path);
+  caml_enter_blocking_section();
+  ret = chown(p, Int_val(uid), Int_val(gid));
+  caml_leave_blocking_section();
+  caml_stat_free(p);
   if (ret == -1) uerror("chown", path);
-  return Val_unit;
+  CAMLreturn(Val_unit);
 }