Propose new socket API

The general idea is to have a non-instantiable socket base class.
Connection-specific sub-classes provide a constructor and methods for
modifying connection parameters. `amqp_socket_close()` is the
destructor.

Signed-off-by: Michael Steinert <mike.steinert@gmail.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/examples/utils.c b/examples/utils.c
index 609c354..0830738 100644
--- a/examples/utils.c
+++ b/examples/utils.c
@@ -34,6 +34,7 @@
  * ***** END LICENSE BLOCK *****
  */
 
+#include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
@@ -45,8 +46,17 @@
 
 #include "utils.h"
 
-void die_on_error(int x, char const *context)
+void die(const char *fmt, ...)
 {
+  va_list ap;
+  va_start(ap, fmt);
+  vfprintf(stderr, fmt, ap);
+  va_end(ap);
+  fprintf(stderr, "\n");
+  exit(1);
+}
+
+void die_on_error(int x, char const *context) {
   if (x < 0) {
     char *errstr = amqp_error_string(-x);
     fprintf(stderr, "%s: %s\n", context, errstr);