Index: libexif/sources/libexif/exif-log.h |
=================================================================== |
--- libexif/sources/libexif/exif-log.h (revision 0) |
+++ libexif/sources/libexif/exif-log.h (revision 0) |
@@ -0,0 +1,116 @@ |
+/*! \file exif-log.h |
+ * \brief Log message infrastructure |
+ */ |
+/* |
+ * Copyright (c) 2004 Lutz Mueller <lutz@users.sourceforge.net> |
+ * |
+ * This library is free software; you can redistribute it and/or |
+ * modify it under the terms of the GNU Lesser General Public |
+ * License as published by the Free Software Foundation; either |
+ * version 2 of the License, or (at your option) any later version. |
+ * |
+ * This library 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 |
+ * Lesser General Public License for more details. |
+ * |
+ * You should have received a copy of the GNU Lesser General Public |
+ * License along with this library; if not, write to the |
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
+ * Boston, MA 02110-1301 USA. |
+ */ |
+ |
+#ifndef __EXIF_LOG_H__ |
+#define __EXIF_LOG_H__ |
+ |
+#ifdef __cplusplus |
+extern "C" { |
+#endif /* __cplusplus */ |
+ |
+#include <libexif/exif-mem.h> |
+#include <stdarg.h> |
+ |
+/*! State maintained by the logging interface */ |
+typedef struct _ExifLog ExifLog; |
+ |
+/*! Create a new logging instance. |
+ * \see exif_log_free |
+ * |
+ * \return new instance of #ExifLog |
+ */ |
+ExifLog *exif_log_new (void); |
+ExifLog *exif_log_new_mem (ExifMem *); |
+void exif_log_ref (ExifLog *log); |
+void exif_log_unref (ExifLog *log); |
+ |
+/*! Delete instance of #ExifLog. |
+ * \see exif_log_new |
+ * |
+ * \param[in] log #ExifLog |
+ * \return new instance of #ExifLog |
+ */ |
+void exif_log_free (ExifLog *log); |
+ |
+typedef enum { |
+ EXIF_LOG_CODE_NONE, |
+ EXIF_LOG_CODE_DEBUG, |
+ EXIF_LOG_CODE_NO_MEMORY, |
+ EXIF_LOG_CODE_CORRUPT_DATA |
+} ExifLogCode; |
+ |
+/*! Return a textual description of the given class of error log. |
+ * |
+ * \param[in] code logging message class |
+ * \return textual description of the log class |
+ */ |
+const char *exif_log_code_get_title (ExifLogCode code); |
+ |
+/*! Return a verbose description of the given class of error log. |
+ * |
+ * \param[in] code logging message class |
+ * \return verbose description of the log class |
+ */ |
+const char *exif_log_code_get_message (ExifLogCode code); |
+ |
+/*! Log callback function prototype. |
+ */ |
+typedef void (* ExifLogFunc) (ExifLog *log, ExifLogCode, const char *domain, |
+ const char *format, va_list args, void *data); |
+ |
+/*! Register log callback function. |
+ * Calls to the log callback function are purely for diagnostic purposes. |
+ * |
+ * \param[in] log logging state variable |
+ * \param[in] func callback function to set |
+ * \param[in] data data to pass into callback function |
+ */ |
+void exif_log_set_func (ExifLog *log, ExifLogFunc func, void *data); |
+ |
+#ifndef NO_VERBOSE_TAG_STRINGS |
+void exif_log (ExifLog *log, ExifLogCode, const char *domain, |
+ const char *format, ...) |
+#ifdef __GNUC__ |
+ __attribute__((__format__(printf,4,5))) |
+#endif |
+; |
+#else |
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L |
+#define exif_log(...) do { } while (0) |
+#elif defined(__GNUC__) |
+#define exif_log(x...) do { } while (0) |
+#else |
+#define exif_log (void) |
+#endif |
+#endif |
+ |
+void exif_logv (ExifLog *log, ExifLogCode, const char *domain, |
+ const char *format, va_list args); |
+ |
+/* For your convenience */ |
+#define EXIF_LOG_NO_MEMORY(l,d,s) exif_log ((l), EXIF_LOG_CODE_NO_MEMORY, (d), "Could not allocate %lu byte(s).", (unsigned long)(s)) |
+ |
+#ifdef __cplusplus |
+} |
+#endif /* __cplusplus */ |
+ |
+#endif /* __EXIF_LOG_H__ */ |
Property changes on: libexif/sources/libexif/exif-log.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |