1 files changed, 120 insertions, 0 deletions
diff --git a/src/zix/common.h b/src/zix/common.h
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+++ b/src/zix/common.h
@@ -0,0 +1,120 @@
+/*
+  Copyright 2016 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#ifndef ZIX_COMMON_H
+#define ZIX_COMMON_H
+
+#include <stdbool.h>
+
+/**
+   @addtogroup zix
+   @{
+*/
+
+/** @cond */
+#ifdef ZIX_SHARED
+#    ifdef _WIN32
+#        define ZIX_LIB_IMPORT __declspec(dllimport)
+#        define ZIX_LIB_EXPORT __declspec(dllexport)
+#    else
+#        define ZIX_LIB_IMPORT __attribute__((visibility("default")))
+#        define ZIX_LIB_EXPORT __attribute__((visibility("default")))
+#    endif
+#    ifdef ZIX_INTERNAL
+#        define ZIX_API ZIX_LIB_EXPORT
+#    else
+#        define ZIX_API ZIX_LIB_IMPORT
+#    endif
+#    define ZIX_PRIVATE static
+#elif defined(ZIX_INLINE)
+#    define ZIX_API     static inline
+#    define ZIX_PRIVATE static inline
+#else
+#    define ZIX_API
+#    define ZIX_PRIVATE static
+#endif
+/** @endcond */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __GNUC__
+#define ZIX_LOG_FUNC(fmt, arg1) __attribute__((format(printf, fmt, arg1)))
+#else
+#define ZIX_LOG_FUNC(fmt, arg1)
+#endif
+
+// Unused parameter macro to suppresses warnings and make it impossible to use
+#if defined(__cplusplus)
+#   define ZIX_UNUSED(name)
+#elif defined(__GNUC__)
+#   define ZIX_UNUSED(name) name##_unused __attribute__((__unused__))
+#else
+#   define ZIX_UNUSED(name) name
+#endif
+
+typedef enum {
+	ZIX_STATUS_SUCCESS,
+	ZIX_STATUS_ERROR,
+	ZIX_STATUS_NO_MEM,
+	ZIX_STATUS_NOT_FOUND,
+	ZIX_STATUS_EXISTS,
+	ZIX_STATUS_BAD_ARG,
+	ZIX_STATUS_BAD_PERMS
+} ZixStatus;
+
+static inline const char*
+zix_strerror(const ZixStatus status)
+{
+	switch (status) {
+	case ZIX_STATUS_SUCCESS:   return "Success";
+	case ZIX_STATUS_ERROR:     return "Unknown error";
+	case ZIX_STATUS_NO_MEM:    return "Out of memory";
+	case ZIX_STATUS_NOT_FOUND: return "Not found";
+	case ZIX_STATUS_EXISTS:    return "Exists";
+	case ZIX_STATUS_BAD_ARG:   return "Bad argument";
+	case ZIX_STATUS_BAD_PERMS: return "Bad permissions";
+	}
+	return "Unknown error";
+}
+
+/**
+   Function for comparing two elements.
+*/
+typedef int (*ZixComparator)(const void* a,
+                             const void* b,
+                             const void* user_data);
+
+/**
+   Function for testing equality of two elements.
+*/
+typedef bool (*ZixEqualFunc)(const void* a, const void* b);
+
+/**
+   Function to destroy an element.
+*/
+typedef void (*ZixDestroyFunc)(void* ptr);
+
+/**
+   @}
+*/
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif  /* ZIX_COMMON_H */