+/*
+ * This file is part of ltrace.
+ * Copyright (C) 2011, 2012, 2013 Petr Machata, Red Hat Inc.
+ * Copyright (C) 2009 Juan Cespedes
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef OUTPUT_H
+#define OUTPUT_H
+
+#include "fetch.h"
+#include "forward.h"
+
+void output_line(struct process *proc, const char *fmt, ...);
+void output_left(enum tof type, struct process *proc,
+ struct library_symbol *libsym);
+void output_right(enum tof type, struct process *proc,
+ struct library_symbol *libsym,
+ struct timedelta *spent);
+
+/* This function is for emitting lists of comma-separated strings.
+ *
+ * STREAM is where the output should be eventually sent.
+ *
+ * WRITER is the function to do the output. It returns number of
+ * characters written, or a negative value if there were errors (like
+ * what fprintf does). If WRITER returns 0, it means nothing was
+ * written, and separator shouldn't therefore be emitted either.
+ *
+ * NEED_DELIMP serves for keeping state between calls. It should
+ * point to a variable that is initialized to 0. DATA is passed
+ * verbatim to the WRITER.
+ *
+ * Returns number of characters written to STREAM (including any
+ * separators), or a negative value if there were errors. */
+int delim_output(FILE *stream, int *need_delimp,
+ int (*writer)(FILE *stream, void *data), void *data);
+
+/* If C is positive, add it to *COUNTP. Returns C. */
+int account_output(int *countp, int c);
+
+void report_error(char const *file, unsigned line_no, const char *fmt, ...);
+void report_warning(char const *file, unsigned line_no, const char *fmt, ...);
+void report_global_error(const char *fmt, ...);
+
+#endif /* OUTPUT_H */