daemon: convert to C++

Makefile.am

@@ -62,7 +62,6 @@ mpd_headers = \
 	src/TextInputStream.hxx \
 	src/ls.h \
 	src/mixer_plugin.h \
-	src/daemon.h \
 	src/AudioCompress/config.h \
 	src/AudioCompress/compress.h \
 	src/open.h \
@@ -173,7 +172,7 @@ src_mpd_SOURCES = \
 	src/Instance.cxx src/Instance.hxx \
 	src/Win32Main.cxx \
 	src/GlobalEvents.cxx src/GlobalEvents.hxx \
-	src/daemon.c \
+	src/Daemon.cxx src/Daemon.hxx \
 	src/AudioCompress/compress.c \
 	src/MusicBuffer.cxx src/MusicBuffer.hxx \
 	src/MusicPipe.cxx src/MusicPipe.hxx \

src/daemon.c → src/Daemon.cxx

 /*
- * 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 "daemon.h"
+#include "Daemon.hxx"
 
 #include <glib.h>
 
@@ -64,11 +64,11 @@ daemonize_kill(void)
 	FILE *fp;
 	int pid, ret;
 
-	if (pidfile == NULL)
+	if (pidfile == nullptr)
 		MPD_ERROR("no pid_file specified in the config file");
 
 	fp = fopen(pidfile, "r");
-	if (fp == NULL)
+	if (fp == nullptr)
 		MPD_ERROR("unable to open pid file \"%s\": %s",
 			  pidfile, g_strerror(errno));
 
@@ -96,7 +96,7 @@ daemonize_close_stdin(void)
 void
 daemonize_set_user(void)
 {
-	if (user_name == NULL)
+	if (user_name == nullptr)
 		return;
 
 	/* set gid */
@@ -131,7 +131,7 @@ daemonize_detach(void)
 {
 	/* flush all file handles before duplicating the buffers */
 
-	fflush(NULL);
+	fflush(nullptr);
 
 #ifdef HAVE_DAEMON
 
@@ -171,9 +171,9 @@ daemonize_detach(void)
 void
 daemonize(bool detach)
 {
-	FILE *fp = NULL;
+	FILE *fp = nullptr;
 
-	if (pidfile != NULL) {
+	if (pidfile != nullptr) {
 		/* do this before daemon'izing so we can fail gracefully if we can't
 		 * write to the pid file */
 		g_debug("opening pid file");
@@ -187,7 +187,7 @@ daemonize(bool detach)
 	if (detach)
 		daemonize_detach();
 
-	if (pidfile != NULL) {
+	if (pidfile != nullptr) {
 		g_debug("writing pid file");
 		fprintf(fp, "%lu\n", (unsigned long)getpid());
 		fclose(fp);
@@ -199,7 +199,7 @@ daemonize_init(const char *user, const char *group, const char *_pidfile)
 {
 	if (user) {
 		struct passwd *pwd = getpwnam(user);
-		if (!pwd)
+		if (pwd == nullptr)
 			MPD_ERROR("no such user \"%s\"", user);
 
 		user_uid = pwd->pw_uid;
@@ -212,8 +212,8 @@ daemonize_init(const char *user, const char *group, const char *_pidfile)
 	}
 
 	if (group) {
-		struct group *grp = grp = getgrnam(group);
-		if (!grp)
+		struct group *grp = getgrnam(group);
+		if (grp == nullptr)
 			MPD_ERROR("no such group \"%s\"", group);
 		user_gid = grp->gr_gid;
 		had_group = true;
@@ -226,7 +226,7 @@ daemonize_init(const char *user, const char *group, const char *_pidfile)
 void
 daemonize_finish(void)
 {
-	if (pidfile != NULL)
+	if (pidfile != nullptr)
 		unlink(pidfile);
 
 	g_free(user_name);

src/daemon.h → src/Daemon.hxx

 /*
- * 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 DAEMON_H
-#define DAEMON_H
+#ifndef MPD_DAEMON_HXX
+#define MPD_DAEMON_HXX
 
 #include "mpd_error.h"
 
-#include <stdbool.h>
-
 #ifndef WIN32
 void
 daemonize_init(const char *user, const char *group, const char *pidfile);

src/Main.cxx

@@ -54,9 +54,9 @@
 #include "DecoderList.hxx"
 #include "AudioConfig.hxx"
 #include "pcm/PcmResample.hxx"
+#include "Daemon.hxx"
 
 extern "C" {
-#include "daemon.h"
 #include "stats.h"
 }