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, 3 insertions, 0 deletions

diff --git a/src/gpg-error.h.in b/src/gpg-error.h.in
index a79f6ba..86f3241 100644
--- a/src/gpg-error.h.in
+++ b/src/gpg-error.h.in
@@ -303,6 +303,9 @@ void gpg_err_deinit (int mode);
 /* Register blocking system I/O clamping functions.  */
 void gpgrt_set_syscall_clamp (void (*pre)(void), void (*post)(void));
 
+/* Get current I/O clamping functions.  */
+void gpgrt_get_syscall_clamp (void (**r_pre)(void), void (**r_post)(void));
+
 /* Register a custom malloc/realloc/free function.  */
 void gpgrt_set_alloc_func  (void *(*f)(void *a, size_t n));