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authorMax Kellermann <max@duempel.org>2013-01-29 23:20:19 +0100
committerMax Kellermann <max@duempel.org>2013-01-29 23:20:19 +0100
commitba51045d9e85b8e48afed629d6d87ac3338acd46 (patch)
tree01449b65415f9cd93212ad4c673d783b01b36ba2 /src
parentfa34dd7bd3e0222811010dda6d1b40c4e3b3291b (diff)
downloadmpd-ba51045d9e85b8e48afed629d6d87ac3338acd46.tar.gz
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refcount: convert to C++
Diffstat (limited to 'src')
-rw-r--r--src/archive/Bzip2ArchivePlugin.cxx9
-rw-r--r--src/archive/Iso9660ArchivePlugin.cxx9
-rw-r--r--src/archive/ZzipArchivePlugin.cxx9
-rw-r--r--src/input/CdioParanoiaInputPlugin.cxx1
-rw-r--r--src/util/RefCount.hxx (renamed from src/refcount.h)44
5 files changed, 30 insertions, 42 deletions
diff --git a/src/archive/Bzip2ArchivePlugin.cxx b/src/archive/Bzip2ArchivePlugin.cxx
index be7388d5b..f93718128 100644
--- a/src/archive/Bzip2ArchivePlugin.cxx
+++ b/src/archive/Bzip2ArchivePlugin.cxx
@@ -29,7 +29,7 @@
#include "InputInternal.hxx"
#include "InputStream.hxx"
#include "InputPlugin.hxx"
-#include "refcount.h"
+#include "util/RefCount.hxx"
#include <stdint.h>
#include <stddef.h>
@@ -45,18 +45,17 @@
struct Bzip2ArchiveFile {
struct archive_file base;
- struct refcount ref;
+ RefCount ref;
char *name;
struct input_stream *istream;
Bzip2ArchiveFile() {
archive_file_init(&base, &bz2_archive_plugin);
- refcount_init(&ref);
}
void Unref() {
- if (!refcount_dec(&ref))
+ if (!ref.Decrement())
return;
g_free(name);
@@ -174,7 +173,7 @@ Bzip2InputStream::Bzip2InputStream(Bzip2ArchiveFile &_context, const char *uri,
:base(bz2_inputplugin, uri, mutex, cond),
archive(&_context), eof(false)
{
- refcount_inc(&archive->ref);
+ archive->ref.Increment();
}
Bzip2InputStream::~Bzip2InputStream()
diff --git a/src/archive/Iso9660ArchivePlugin.cxx b/src/archive/Iso9660ArchivePlugin.cxx
index 895087efc..344cdac6a 100644
--- a/src/archive/Iso9660ArchivePlugin.cxx
+++ b/src/archive/Iso9660ArchivePlugin.cxx
@@ -29,7 +29,7 @@
#include "InputInternal.hxx"
#include "InputStream.hxx"
#include "InputPlugin.hxx"
-#include "refcount.h"
+#include "util/RefCount.hxx"
#include <cdio/cdio.h>
#include <cdio/iso9660.h>
@@ -44,14 +44,13 @@
struct Iso9660ArchiveFile {
struct archive_file base;
- struct refcount ref;
+ RefCount ref;
iso9660_t *iso;
Iso9660ArchiveFile(iso9660_t *_iso)
:iso(_iso) {
archive_file_init(&base, &iso9660_archive_plugin);
- refcount_init(&ref);
}
~Iso9660ArchiveFile() {
@@ -59,7 +58,7 @@ struct Iso9660ArchiveFile {
}
void Unref() {
- if (refcount_dec(&ref))
+ if (ref.Decrement())
delete this;
}
@@ -161,7 +160,7 @@ struct Iso9660InputStream {
base.ready = true;
base.size = statbuf->size;
- refcount_inc(&archive->ref);
+ archive->ref.Increment();
}
~Iso9660InputStream() {
diff --git a/src/archive/ZzipArchivePlugin.cxx b/src/archive/ZzipArchivePlugin.cxx
index 4075e2179..1b089a484 100644
--- a/src/archive/ZzipArchivePlugin.cxx
+++ b/src/archive/ZzipArchivePlugin.cxx
@@ -29,7 +29,7 @@
#include "InputInternal.hxx"
#include "InputStream.hxx"
#include "InputPlugin.hxx"
-#include "refcount.h"
+#include "util/RefCount.hxx"
#include <zzip/zzip.h>
#include <glib.h>
@@ -38,17 +38,16 @@
struct ZzipArchiveFile {
struct archive_file base;
- struct refcount ref;
+ RefCount ref;
ZZIP_DIR *dir;
ZzipArchiveFile() {
archive_file_init(&base, &zzip_archive_plugin);
- refcount_init(&ref);
}
void Unref() {
- if (!refcount_dec(&ref))
+ if (!ref.Decrement())
return;
//close archive
@@ -136,7 +135,7 @@ struct ZzipInputStream {
zzip_file_stat(file, &z_stat);
base.size = z_stat.st_size;
- refcount_inc(&archive->ref);
+ archive->ref.Increment();
}
~ZzipInputStream() {
diff --git a/src/input/CdioParanoiaInputPlugin.cxx b/src/input/CdioParanoiaInputPlugin.cxx
index 942eefb99..f0fa835b3 100644
--- a/src/input/CdioParanoiaInputPlugin.cxx
+++ b/src/input/CdioParanoiaInputPlugin.cxx
@@ -26,7 +26,6 @@
#include "InputInternal.hxx"
#include "InputStream.hxx"
#include "InputPlugin.hxx"
-#include "refcount.h"
#include <stdio.h>
#include <stdint.h>
diff --git a/src/refcount.h b/src/util/RefCount.hxx
index a882d76b0..9a45a585b 100644
--- a/src/refcount.h
+++ b/src/util/RefCount.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
*
* Redistribution and use in source and binary forms, with or without
@@ -33,35 +33,27 @@
* A very simple reference counting library.
*/
-#ifndef MPD_REFCOUNT_H
-#define MPD_REFCOUNT_H
+#ifndef MPD_REFCOUNT_HXX
+#define MPD_REFCOUNT_HXX
-#include <glib.h>
-#include <stdbool.h>
+#include <atomic>
-struct refcount {
- gint n;
-};
+class RefCount {
+ std::atomic_uint n;
-static inline void
-refcount_init(struct refcount *r)
-{
- r->n = 1;
-}
+public:
+ constexpr RefCount():n(1) {}
-static inline void
-refcount_inc(struct refcount *r)
-{
- g_atomic_int_inc(&r->n);
-}
+ void Increment() {
+ ++n;
+ }
-/**
- * @return true if the number of references has been dropped to 0
- */
-static inline bool
-refcount_dec(struct refcount *r)
-{
- return g_atomic_int_dec_and_test(&r->n);
-}
+ /**
+ * @return true if the number of references has been dropped to 0
+ */
+ bool Decrement() {
+ return --n == 0;
+ }
+};
#endif