Add a less janky portability wrapper for dlopen() and friends

1 files changed, 78 insertions, 0 deletions

diff --git a/src/dylib.h b/src/dylib.h
new file mode 100644
index 0000000..246693c
--- /dev/null
+++ b/src/dylib.h
@@ -0,0 +1,78 @@
+/*
+  Copyright 2020 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 SUIL_DYLIB_H
+#define SUIL_DYLIB_H
+
+#ifdef _WIN32
+
+#include <windows.h>
+
+enum DylibFlags {
+	DYLIB_GLOBAL = 0,
+	DYLIB_LAZY   = 1,
+	DYLIB_NOW    = 2,
+};
+
+static inline void*
+dylib_open(const char* const filename, const int flags)
+{
+	return LoadLibrary(filename);
+}
+
+static inline int
+dylib_close(void* const handle)
+{
+	return !FreeLibrary((HMODULE)handle);
+}
+
+static inline const char*
+dylib_error(void)
+{
+	return "Unknown error";
+}
+
+#else
+
+#include <dlfcn.h>
+
+enum DylibFlags {
+	DYLIB_GLOBAL = RTLD_GLOBAL,
+	DYLIB_LAZY   = RTLD_LAZY,
+	DYLIB_NOW    = RTLD_NOW,
+};
+
+static inline void*
+dylib_open(const char* const filename, const int flags)
+{
+	return dlopen(filename, flags);
+}
+
+static inline int
+dylib_close(void* const handle)
+{
+	return dlclose(handle);
+}
+
+static inline const char*
+dylib_error(void)
+{
+	return dlerror();
+}
+
+#endif
+
+#endif // SUIL_DYLIB_H