[PATCH liburing 4/5] examples: add extra helpers

[Pavel Begunkov <asml.silence@gmail.com>]

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 examples/helpers.c | 15 +++++++++++++++
 examples/helpers.h |  6 ++++++
 2 files changed, 21 insertions(+)

diff --git a/examples/helpers.c b/examples/helpers.c
index 59b31ecb..0c9e0160 100644
--- a/examples/helpers.c
+++ b/examples/helpers.c
@@ -9,6 +9,7 @@
 #include <sys/socket.h>
 #include <sys/time.h>
 #include <unistd.h>
+#include <stdarg.h>
 
 #include "helpers.h"
 
@@ -70,3 +71,17 @@ void *aligned_alloc(size_t alignment, size_t size)
 
 	return ret;
 }
+
+void t_error(int status, int errnum, const char *format, ...)
+{
+	va_list args;
+	va_start(args, format);
+
+	vfprintf(stderr, format, args);
+	if (errnum)
+		fprintf(stderr, ": %s", strerror(errnum));
+
+	fprintf(stderr, "\n");
+	va_end(args);
+	exit(status);
+}
diff --git a/examples/helpers.h b/examples/helpers.h
index d73ee4a5..c8bf7332 100644
--- a/examples/helpers.h
+++ b/examples/helpers.h
@@ -2,6 +2,10 @@
 #ifndef LIBURING_EX_HELPERS_H
 #define LIBURING_EX_HELPERS_H
 
+#include <stddef.h>
+
+#define T_ALIGN_UP(v, align) (((v) + (align) - 1) & ~((align) - 1))
+
 int setup_listening_socket(int port, int ipv6);
 
 /*
@@ -11,4 +15,6 @@ int setup_listening_socket(int port, int ipv6);
  */
 void *aligned_alloc(size_t alignment, size_t size);
 
+void t_error(int status, int errnum, const char *format, ...);
+
 #endif
-- 
2.48.1