Split source files, merge public header files, eliminite use gpp, rewrite makefile

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 40 insertions, 0 deletions

diff --git a/libgamma_perror.c b/libgamma_perror.c
new file mode 100644
index 0000000..92060d8
--- /dev/null
+++ b/libgamma_perror.c
@@ -0,0 +1,40 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Prints an error to stderr in a `perror` fashion
+ * 
+ * @param  name   The text to add at the beginning
+ * @param  value  The error code, may be an `errno` value
+ */
+void
+libgamma_perror(const char *name, int error_code)
+{
+	const char *desc, *gname;
+	char buf[1024];
+	long int gid;
+
+	desc = libgamma_strerror_r(error_code, buf, sizeof(buf));
+
+	if (error_code == LIBGAMMA_DEVICE_REQUIRE_GROUP) {
+		gid = (intmax_t)libgamma_group_gid_get();
+		gname = libgamma_group_name_get();
+		if (!gname) {
+			if (name && *name)
+				fprintf(stderr, "%s: %s in group %ji\n", name, desc, gid);
+			else
+				fprintf(stderr, "%s in group %ji\n", desc, gid);
+		} else {
+			if (name && *name)
+				fprintf(stderr, "%s: %s in group %s (%ji)\n", name, desc, gname, gid);
+			else
+				fprintf(stderr, "%s in group %s (%ji)\n", desc, gname, gid);
+		}
+	} else {
+		if (name && *name)
+			fprintf(stderr, "%s: %s\n", name, desc);
+		else
+			fprintf(stderr, "%s\n", desc);
+	}
+}