xutil.c: remove duplicate copies, create new library libutil.a to contain xutil.

We keep the lib/xutil.c version. As a consequence, also factor out
_internal_error and associated macros.  It might be overkill to make a
new file error_util.c for this, but _internal_error does not really
belong in database.cc.

1 files changed, 55 insertions, 0 deletions

diff --git a/util/xutil.h b/util/xutil.h
new file mode 100644
index 00000000..fd77f733
--- /dev/null
+++ b/util/xutil.h
@@ -0,0 +1,55 @@
+/* xutil.h - Various wrapper functions to abort on error.
+ *
+ * Copyright © 2009 Carl Worth
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/ .
+ *
+ * Author: Carl Worth <cworth@cworth.org>
+ */
+
+#ifndef NOTMUCH_XUTIL_H
+#define NOTMUCH_XUTIL_H
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <regex.h>
+
+#pragma GCC visibility push(hidden)
+
+/* xutil.c */
+void *
+xcalloc (size_t nmemb, size_t size);
+
+void *
+xmalloc (size_t size);
+
+void *
+xrealloc (void *ptrr, size_t size);
+
+char *
+xstrdup (const char *s);
+
+char *
+xstrndup (const char *s, size_t n);
+
+void
+xregcomp (regex_t *preg, const char *regex, int cflags);
+
+int
+xregexec (const regex_t *preg, const char *string,
+	  size_t nmatch, regmatch_t pmatch[], int eflags);
+
+#pragma GCC visibility pop
+
+#endif