From e28102841f2409190de52b7ceb80d5e7ad30e040 Mon Sep 17 00:00:00 2001
From: Philipp Schafft <lion@lion.leolix.org>
Date: Thu, 12 Sep 2019 13:01:26 +0000
Subject: [PATCH] Feature: Added generic error type

---
 Makefile.am           |  2 ++
 include/igloo/error.h | 62 +++++++++++++++++++++++++++++++++++++++++++
 src/error.c           | 60 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 124 insertions(+)
 create mode 100644 include/igloo/error.h
 create mode 100644 src/error.c

diff --git a/Makefile.am b/Makefile.am
index ad466aa..404e343 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -28,6 +28,7 @@ pkginclude_HEADERS = \
     include/igloo/logmsg.h \
     include/igloo/buffer.h \
     include/igloo/list.h \
+    include/igloo/error.h \
     include/igloo/reportxml.h
 
 libigloo_la_SOURCES = \
@@ -42,6 +43,7 @@ libigloo_la_SOURCES = \
     src/logmsg.c \
     src/buffer.c \
     src/list.c \
+    src/error.c \
     src/reportxml.c \
     src/timing.c
 libigloo_la_LIBADD = \
diff --git a/include/igloo/error.h b/include/igloo/error.h
new file mode 100644
index 0000000..930b62f
--- /dev/null
+++ b/include/igloo/error.h
@@ -0,0 +1,62 @@
+/* Copyright (C) 2019       Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ */
+
+#ifndef _LIBIGLOO__ERROR_H_
+#define _LIBIGLOO__ERROR_H_
+/**
+ * @file
+ * Put a good description of this file here
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Put stuff here */
+
+#include <igloo/config.h>
+
+#ifdef IGLOO_CTC_HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#ifdef IGLOO_CTC_HAVE_STDINT_H
+typedef int_least16_t igloo_error_t;
+#else
+typedef long int igloo_error_t;
+#endif
+
+typedef struct {
+    igloo_error_t error;
+    const char *uuid;
+    const char *name;
+    const char *message;
+    const char *description;
+} igloo_error_desc_t;
+
+#define igloo_ERROR_GENERIC         ((igloo_error_t)-1)
+#define igloo_ERROR_NONE            ((igloo_error_t)0)
+
+const igloo_error_desc_t *      igloo_error_get_description(igloo_error_t error);
+const igloo_error_desc_t *      igloo_error_getbyname(const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ! _LIBIGLOO__ERROR_H_ */
diff --git a/src/error.c b/src/error.c
new file mode 100644
index 0000000..5cde25f
--- /dev/null
+++ b/src/error.c
@@ -0,0 +1,60 @@
+/* Icecast
+ *
+ * This program is distributed under the GNU General Public License, version 2.
+ * A copy of this license is included with this source.
+ *
+ * Copyright 2019,      Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+
+#include <igloo/error.h>
+#include <igloo/types.h>
+
+#define ERROR_BASE(x) .error = igloo_ERROR_ ## x, .name = # x
+
+static const igloo_error_desc_t __desc[] = {
+    {
+        ERROR_BASE(GENERIC),
+        .uuid = "953b7275-21f3-4697-8d30-33f346f9833e",
+        .message = "Generic error",
+        .description = "A generic error occurred."
+    },
+    {
+        ERROR_BASE(NONE),
+        .uuid = "4fa39862-0647-46ea-bfdf-fd2a5c7f6e9d",
+        .message = "No error",
+        .description = "The operation succeeded."
+    }
+};
+
+const igloo_error_desc_t *      igloo_error_get_description(igloo_error_t error)
+{
+    size_t i;
+
+    for (i = 0; i < (sizeof(__desc)/sizeof(*__desc)); i++)
+        if (__desc[i].error == error)
+            return &(__desc[i]);
+
+    return NULL;
+}
+
+const igloo_error_desc_t *      igloo_error_getbyname(const char *name)
+{
+    size_t i;
+
+    if (!name)
+        return NULL;
+
+    for (i = 0; i < (sizeof(__desc)/sizeof(*__desc)); i++) {
+        if (__desc[i].name && strcmp(__desc[i].name, name) == 0) {
+            return &(__desc[i]);
+        }
+    }
+
+    return NULL;
+}