Added exec.

include/bx/process.h

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2010-2015 Branimir Karadzic. All rights reserved.
+ * License: http://www.opensource.org/licenses/BSD-2-Clause
+ */
+
+#ifndef BX_PROCESS_H_HEADER_GUARD
+#define BX_PROCESS_H_HEADER_GUARD
+
+#if BX_PLATFORM_LINUX
+#	include <unistd.h>
+#endif // BX_PLATFORM_LINUX
+
+namespace bx
+{
+	///
+	inline void* exec(const char*const _argv[])
+	{
+#if BX_PLATFORM_LINUX
+		pid_t pid = fork();
+
+		if (0 == pid)
+		{
+			int result = execvp(_argv[0], const_cast<char *const*>(&_argv[1]) );
+			BX_UNUSED(result);
+			return NULL;
+		}
+
+		return (void*)uintptr_t(pid);
+#else
+		return NULL;
+#endif // BX_PLATFORM_LINUX
+	}
+
+} // namespace bx
+
+#endif // BX_PROCESS_H_HEADER_GUARD