Add new interface gpgrt_get_syscall_clamp.

* src/visibility.c (gpgrt_get_syscall_clamp): New.
* src/gpg-error.vers, src/gpg-error.def.in: Add function.
* src/gpg-error.h.in: Ditto.
* src/estream.c (_gpgrt_get_syscall_clamp): New.
--

This function can be used by other libraries to set their own system
clamp functions.

Signed-off-by: Werner Koch <wk@gnupg.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/estream.c b/src/estream.c
index d0f0ba9..752d22e 100644
--- a/src/estream.c
+++ b/src/estream.c
@@ -605,6 +605,17 @@ _gpgrt_set_syscall_clamp (void (*pre)(void), void (*post)(void))
   _gpgrt_lock_set_lock_clamp (pre, post);
 }
 
+/*
+ * Return the current sycall clamp functions.  This can be used by
+ * other libraries which have blocking functions.
+ */
+void
+_gpgrt_get_syscall_clamp (void (**r_pre)(void), void (**r_post)(void))
+{
+  *r_pre  = pre_syscall_func;
+  *r_post = post_syscall_func;
+}
+
 
 
 /*