ape: convert to C++

10 files changed, 73 insertions, 93 deletions

diff --git a/src/ape.c b/src/ApeLoader.cxx
index 6257fe6b3..dfbdb4ef3 100644
--- a/src/ape.c
+++ b/src/ApeLoader.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -18,7 +18,7 @@
  */
 
 #include "config.h"
-#include "ape.h"
+#include "ApeLoader.hxx"
 
 #include <glib.h>
 
@@ -37,7 +37,7 @@ struct ape_footer {
 };
 
 static bool
-ape_scan_internal(FILE *fp, tag_ape_callback_t callback, void *ctx)
+ape_scan_internal(FILE *fp, ApeTagCallback callback)
 {
 	/* determine if file has an apeV2 tag */
 	struct ape_footer footer;
@@ -59,7 +59,7 @@ ape_scan_internal(FILE *fp, tag_ape_callback_t callback, void *ctx)
 	remaining -= sizeof(footer);
 	assert(remaining > 10);
 
-	char *buffer = g_malloc(remaining);
+	char *buffer = (char *)g_malloc(remaining);
 	if (fread(buffer, 1, remaining, fp) != remaining) {
 		g_free(buffer);
 		return false;
@@ -89,7 +89,7 @@ ape_scan_internal(FILE *fp, tag_ape_callback_t callback, void *ctx)
 		if (remaining < size)
 			break;
 
-		if (!callback(flags, key, p, size, ctx))
+		if (!callback(flags, key, p, size))
 			break;
 
 		p += size;
@@ -101,15 +101,15 @@ ape_scan_internal(FILE *fp, tag_ape_callback_t callback, void *ctx)
 }
 
 bool
-tag_ape_scan(const char *path_fs, tag_ape_callback_t callback, void *ctx)
+tag_ape_scan(const char *path_fs, ApeTagCallback callback)
 {
 	FILE *fp;
 
 	fp = fopen(path_fs, "rb");
-	if (fp == NULL)
+	if (fp == nullptr)
 		return false;
 
-	bool success = ape_scan_internal(fp, callback, ctx);
+	bool success = ape_scan_internal(fp, callback);
 	fclose(fp);
 	return success;
 }
diff --git a/src/ape.h b/src/ApeLoader.hxx
index c2b271b15..a32ab840c 100644
--- a/src/ape.h
+++ b/src/ApeLoader.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,17 +17,18 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef MPD_APE_H
-#define MPD_APE_H
+#ifndef MPD_APE_LOADER_HXX
+#define MPD_APE_LOADER_HXX
 
 #include "check.h"
 
-#include <stdbool.h>
+#include <functional>
+
 #include <stddef.h>
 
-typedef bool (*tag_ape_callback_t)(unsigned long flags, const char *key,
-				   const char *value, size_t value_length,
-				   void *ctx);
+typedef std::function<bool(unsigned long flags, const char *key,
+			   const char *value,
+			   size_t value_length)> ApeTagCallback;
 
 /**
  * Scans the APE tag values from a file.
@@ -37,6 +38,6 @@ typedef bool (*tag_ape_callback_t)(unsigned long flags, const char *key,
  * present
  */
 bool
-tag_ape_scan(const char *path_fs, tag_ape_callback_t callback, void *ctx);
+tag_ape_scan(const char *path_fs, ApeTagCallback callback);
 
 #endif
diff --git a/src/replay_gain_ape.c b/src/ApeReplayGain.cxx
index 0b59e3c02..0135d1b61 100644
--- a/src/replay_gain_ape.c
+++ b/src/ApeReplayGain.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -18,61 +18,61 @@
  */
 
 #include "config.h"
-#include "replay_gain_ape.h"
+#include "ApeReplayGain.hxx"
+#include "ApeLoader.hxx"
 #include "replay_gain_info.h"
-#include "ape.h"
 
 #include <glib.h>
 
 #include <string.h>
 #include <stdlib.h>
 
-struct rg_ape_ctx {
-	struct replay_gain_info *info;
-	bool found;
-};
-
 static bool
 replay_gain_ape_callback(unsigned long flags, const char *key,
-			 const char *_value, size_t value_length, void *_ctx)
+			 const char *_value, size_t value_length,
+			 struct replay_gain_info *info)
 {
-	struct rg_ape_ctx *ctx = _ctx;
-
 	/* we only care about utf-8 text tags */
 	if ((flags & (0x3 << 1)) != 0)
-		return true;
+		return false;
 
 	char value[16];
 	if (value_length >= sizeof(value))
-		return true;
+		return false;
+
 	memcpy(value, _value, value_length);
 	value[value_length] = 0;
 
 	if (g_ascii_strcasecmp(key, "replaygain_track_gain") == 0) {
-		ctx->info->tuples[REPLAY_GAIN_TRACK].gain = atof(value);
-		ctx->found = true;
+		info->tuples[REPLAY_GAIN_TRACK].gain = atof(value);
+		return true;
 	} else if (g_ascii_strcasecmp(key, "replaygain_album_gain") == 0) {
-		ctx->info->tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
-		ctx->found = true;
+		info->tuples[REPLAY_GAIN_ALBUM].gain = atof(value);
+		return true;
 	} else if (g_ascii_strcasecmp(key, "replaygain_track_peak") == 0) {
-		ctx->info->tuples[REPLAY_GAIN_TRACK].peak = atof(value);
-		ctx->found = true;
+		info->tuples[REPLAY_GAIN_TRACK].peak = atof(value);
+		return true;
 	} else if (g_ascii_strcasecmp(key, "replaygain_album_peak") == 0) {
-		ctx->info->tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
-		ctx->found = true;
-	}
-
-	return true;
+		info->tuples[REPLAY_GAIN_ALBUM].peak = atof(value);
+		return true;
+	} else
+		return false;
 }
 
 bool
 replay_gain_ape_read(const char *path_fs, struct replay_gain_info *info)
 {
-	struct rg_ape_ctx ctx = {
-		.info = info,
-		.found = false,
+	bool found = false;
+
+	auto callback = [info, &found]
+		(unsigned long flags, const char *key,
+		 const char *value,
+		 size_t value_length) {
+		found |= replay_gain_ape_callback(flags, key,
+						  value, value_length,
+						  info);
+		return true;
 	};
 
-	return tag_ape_scan(path_fs, replay_gain_ape_callback, &ctx) &&
-		ctx.found;
+	return tag_ape_scan(path_fs, callback) && found;
 }
diff --git a/src/replay_gain_ape.h b/src/ApeReplayGain.hxx
index 35760a0aa..4bc34a9d2 100644
--- a/src/replay_gain_ape.h
+++ b/src/ApeReplayGain.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,13 +17,11 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef MPD_REPLAY_GAIN_APE_H
-#define MPD_REPLAY_GAIN_APE_H
+#ifndef MPD_APE_REPLAY_GAIN_HXX
+#define MPD_APE_REPLAY_GAIN_HXX
 
 #include "check.h"
 
-#include <stdbool.h>
-
 struct replay_gain_info;
 
 bool
diff --git a/src/tag_ape.c b/src/ApeTag.cxx
index 0adc43092..1195ffe5f 100644
--- a/src/tag_ape.c
+++ b/src/ApeTag.cxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -18,16 +18,16 @@
  */
 
 #include "config.h"
-#include "tag_ape.h"
+#include "ApeTag.hxx"
+#include "ApeLoader.hxx"
 #include "tag.h"
 #include "tag_table.h"
 #include "tag_handler.h"
-#include "ape.h"
 
 const struct tag_table ape_tags[] = {
 	{ "album artist", TAG_ALBUM_ARTIST },
 	{ "year", TAG_DATE },
-	{ NULL, TAG_NUM_OF_ITEM_TYPES }
+	{ nullptr, TAG_NUM_OF_ITEM_TYPES }
 };
 
 static enum tag_type
@@ -62,8 +62,8 @@ tag_ape_import_item(unsigned long flags,
 	const char *end = value + value_length;
 	while (true) {
 		/* multiple values are separated by null bytes */
-		const char *n = memchr(value, 0, end - value);
-		if (n != NULL) {
+		const char *n = (const char *)memchr(value, 0, end - value);
+		if (n != nullptr) {
 			if (n > value) {
 				tag_handler_invoke_tag(handler, handler_ctx,
 						       type, value);
@@ -84,34 +84,21 @@ tag_ape_import_item(unsigned long flags,
 	return recognized;
 }
 
-struct tag_ape_ctx {
-	const struct tag_handler *handler;
-	void *handler_ctx;
-
-	bool recognized;
-};
-
-static bool
-tag_ape_callback(unsigned long flags, const char *key,
-		 const char *value, size_t value_length, void *_ctx)
-{
-	struct tag_ape_ctx *ctx = _ctx;
-
-	ctx->recognized |= tag_ape_import_item(flags, key, value, value_length,
-					       ctx->handler, ctx->handler_ctx);
-	return true;
-}
-
 bool
 tag_ape_scan2(const char *path_fs,
 	      const struct tag_handler *handler, void *handler_ctx)
 {
-	struct tag_ape_ctx ctx = {
-		.handler = handler,
-		.handler_ctx = handler_ctx,
-		.recognized = false,
+	bool recognized = false;
+
+	auto callback = [handler, handler_ctx, &recognized]
+		(unsigned long flags, const char *key,
+		 const char *value,
+		 size_t value_length) {
+		recognized |= tag_ape_import_item(flags, key, value,
+						  value_length,
+						  handler, handler_ctx);
+		return true;
 	};
 
-	return tag_ape_scan(path_fs, tag_ape_callback, &ctx) &&
-		ctx.recognized;
+	return tag_ape_scan(path_fs, callback) && recognized;
 }
diff --git a/src/tag_ape.h b/src/ApeTag.hxx
index e2daf088d..3e6655531 100644
--- a/src/tag_ape.h
+++ b/src/ApeTag.hxx
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2003-2011 The Music Player Daemon Project
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
  * http://www.musicpd.org
  *
  * This program is free software; you can redistribute it and/or modify
@@ -17,8 +17,8 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#ifndef MPD_TAG_APE_H
-#define MPD_TAG_APE_H
+#ifndef MPD_APE_TAG_HXX
+#define MPD_APE_TAG_HXX
 
 #include "tag_table.h"
 
diff --git a/src/DecoderThread.cxx b/src/DecoderThread.cxx
index f69a5fb3c..747319463 100644
--- a/src/DecoderThread.cxx
+++ b/src/DecoderThread.cxx
@@ -32,10 +32,7 @@
 #include "InputStream.hxx"
 #include "DecoderList.hxx"
 #include "util/UriUtil.hxx"
-
-extern "C" {
-#include "replay_gain_ape.h"
-}
+#include "ApeReplayGain.hxx"
 
 #include <glib.h>
 
diff --git a/src/SongUpdate.cxx b/src/SongUpdate.cxx
index cfe4741c9..8285cdd99 100644
--- a/src/SongUpdate.cxx
+++ b/src/SongUpdate.cxx
@@ -29,9 +29,9 @@
 #include "DecoderPlugin.hxx"
 #include "DecoderList.hxx"
 #include "TagId3.hxx"
+#include "ApeTag.hxx"
 
 extern "C" {
-#include "tag_ape.h"
 #include "tag_handler.h"
 }
 
diff --git a/src/decoder/WavpackDecoderPlugin.cxx b/src/decoder/WavpackDecoderPlugin.cxx
index 6776f7193..a1512ee63 100644
--- a/src/decoder/WavpackDecoderPlugin.cxx
+++ b/src/decoder/WavpackDecoderPlugin.cxx
@@ -27,7 +27,7 @@ extern "C" {
 }
 
 #include "tag_handler.h"
-#include "tag_ape.h"
+#include "ApeTag.hxx"
 
 #include <wavpack/wavpack.h>
 #include <glib.h>
diff --git a/src/playlist/EmbeddedCuePlaylistPlugin.cxx b/src/playlist/EmbeddedCuePlaylistPlugin.cxx
index 8f8d87153..c45e1d718 100644
--- a/src/playlist/EmbeddedCuePlaylistPlugin.cxx
+++ b/src/playlist/EmbeddedCuePlaylistPlugin.cxx
@@ -29,14 +29,11 @@
 #include "tag.h"
 #include "tag_handler.h"
 #include "TagId3.hxx"
+#include "ApeTag.hxx"
 #include "Song.hxx"
 #include "TagFile.hxx"
 #include "cue/CueParser.hxx"
 
-extern "C" {
-#include "tag_ape.h"
-}
-
 #include <glib.h>
 #include <assert.h>
 #include <string.h>