bitkeeper revision 1.1662.1.15 (42a5968eiZE_DjdIFPjxvzLw6ACvCQ)

Add xenstore daemon and library.
Makefile:
  Add xenstore subdirectory.
  Remove xs_stress on clean.
Many files:
  new file
ignore:
  Update ignore list for xenstore.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (authored)
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

1 files changed, 61 insertions, 0 deletions

diff --git a/tools/xenstore/utils.h b/tools/xenstore/utils.h
new file mode 100644
index 0000000000..a84f19a22a
--- /dev/null
+++ b/tools/xenstore/utils.h
@@ -0,0 +1,61 @@
+#ifndef _UTILS_H
+#define _UTILS_H
+#include <stdbool.h>
+#include <string.h>
+#include <stdint.h>
+
+/* Is A == B ? */
+#define streq(a,b) (strcmp((a),(b)) == 0)
+
+/* Does A start with B ? */
+#define strstarts(a,b) (strncmp((a),(b),strlen(b)) == 0)
+
+/* Does A end in B ? */
+static inline bool strends(const char *a, const char *b)
+{
+	if (strlen(a) < strlen(b))
+		return false;
+
+	return streq(a + strlen(a) - strlen(b), b);
+}
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+#define ___stringify(x)	#x
+#define __stringify(x)		___stringify(x)
+
+/* Convenient wrappers for malloc and realloc.  Use them. */
+#define new(type) ((type *)malloc_nofail(sizeof(type)))
+#define new_array(type, num) realloc_array((type *)0, (num))
+#define realloc_array(ptr, num) ((__typeof__(ptr))_realloc_array((ptr), sizeof((*ptr)), (num)))
+
+void *malloc_nofail(size_t size);
+void *realloc_nofail(void *ptr, size_t size);
+void *_realloc_array(void *ptr, size_t size, size_t num);
+
+void barf(const char *fmt, ...) __attribute__((noreturn));
+void barf_perror(const char *fmt, ...) __attribute__((noreturn));
+
+/* This version adds one byte (for nul term) */
+void *grab_file(const char *filename, unsigned long *size);
+void release_file(void *data, unsigned long size);
+
+/* For writing daemons, based on Stevens. */
+void daemonize(void);
+
+/* Signal handling: returns fd to listen on. */
+int signal_to_fd(int signal);
+void close_signal(int fd);
+
+void xprintf(const char *fmt, ...);
+
+#define eprintf(_fmt, _args...) xprintf("[ERR] %s" _fmt, __FUNCTION__, ##_args)
+#define iprintf(_fmt, _args...) xprintf("[INF] %s" _fmt, __FUNCTION__, ##_args)
+
+#ifdef DEBUG
+#define dprintf(_fmt, _args...) xprintf("[DBG] %s" _fmt, __FUNCTION__, ##_args)
+#else
+#define dprintf(_fmt, _args...) ((void)0)
+#endif
+
+#endif /* _UTILS_H */