Move functions to their own files

Also we move the source code to a src/ directory.  We also move from
using `struct luxdisp` to `lux_t` to signify that we don’t want the user
to be messing with the struct members.

1 files changed, 57 insertions, 0 deletions

diff --git a/src/lux.h b/src/lux.h
new file mode 100644
index 0000000..9296bc5
--- /dev/null
+++ b/src/lux.h
@@ -0,0 +1,57 @@
+/*
+ * BSD Zero Clause License
+ *
+ * Copyright (c) 2022 Thomas Voss
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted.
+ *
+ * THE 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 LUX_H
+#define LUX_H
+
+#include <stdio.h>
+
+#define LUX_BACKLIGHT_DIR "/sys/class/backlight"
+#ifdef O_PATH
+	#define LUX_GDIR_FLAGS O_PATH
+#else
+	#define LUX_GDIR_FLAGS (O_RDONLY | O_DIRECTORY)
+#endif
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+	int __dirfd, __max;
+	FILE *__bstream;
+} lux_t;
+
+void luxfree(lux_t *);
+int luxinit(lux_t *);
+int luxmax(lux_t *);
+int luxget(lux_t *);
+int luxset(lux_t *, int);
+int luxinc(lux_t *, int);
+int luxdec(lux_t *, int);
+
+double luxgetp(lux_t *);
+double luxsetp(lux_t *, double);
+double luxincp(lux_t *, double);
+double luxdecp(lux_t *, double);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !LUX_H */