diff mbox series

[BlueZ,v4,7/8] bluetoothd: change plugin loading alike obexd

Message ID 20240129-rm-ext-plugins-v4-7-bfd1e08c7f99@gmail.com (mailing list archive)
State Accepted
Commit f174724c76c6c8b91276f444142fed9c2537e5c1
Headers show
Series Remove support for external plugins | expand

Checks

Context Check Description
tedd_an/pre-ci_am success Success
tedd_an/CheckPatch warning WARNING:ENOSYS: ENOSYS means 'invalid syscall nr' and nothing else #108: FILE: src/plugin.c:52: + if (err == -ENOSYS || err == -ENOTSUP) /github/workspace/src/src/13535815.patch total: 0 errors, 1 warnings, 106 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. /github/workspace/src/src/13535815.patch has style problems, please review. NOTE: Ignored message types: COMMIT_MESSAGE COMPLEX_MACRO CONST_STRUCT FILE_PATH_CHANGES MISSING_SIGN_OFF PREFER_PACKED SPDX_LICENSE_TAG SPLIT_STRING SSCANF_TO_KSTRTO NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS.
tedd_an/GitLint success Gitlint PASS
tedd_an/IncrementalBuild success Incremental Build PASS

Commit Message

Emil Velikov via B4 Relay Jan. 29, 2024, 2:44 p.m. UTC
From: Emil Velikov <emil.velikov@collabora.com>

Currently, we print "Loading foobar" for every plugin, before we try the
respective init() callback. Instead we handle the latter in a bunch, at
the end of the process.

Do the init() call early, print "Loaded" once it's actually successful
and drop the no-longer "active" tracking.
---
 src/plugin.c | 53 +++++++++++++++++++++++++++++------------------------
 1 file changed, 29 insertions(+), 24 deletions(-)

Comments

Paul Menzel Jan. 29, 2024, 3:37 p.m. UTC | #1
Dear Emil,


Thank you for your patches.

Am 29.01.24 um 15:44 schrieb Emil Velikov via B4 Relay:
> From: Emil Velikov <emil.velikov@collabora.com>
> 
> Currently, we print "Loading foobar" for every plugin, before we try the
> respective init() callback. Instead we handle the latter in a bunch, at
> the end of the process.

Excuse my ignorance, but would you be so kind to state the problem. It’s 
causing confusion to have `Loading foobar`, in case it fails? It 
clutters the output or uses unnecessory resources?

> Do the init() call early, print "Loaded" once it's actually successful
> and drop the no-longer "active" tracking.

It would help me, if you pasted the logs without and with your patch.


Kind regards,

Paul


> ---
>   src/plugin.c | 53 +++++++++++++++++++++++++++++------------------------
>   1 file changed, 29 insertions(+), 24 deletions(-)
> 
> diff --git a/src/plugin.c b/src/plugin.c
> index b6a84299a..e6d05be4c 100644
> --- a/src/plugin.c
> +++ b/src/plugin.c
> @@ -32,7 +32,6 @@ static GSList *plugins = NULL;
>   
>   struct bluetooth_plugin {
>   	void *handle;
> -	gboolean active;
>   	const struct bluetooth_plugin_desc *desc;
>   };
>   
> @@ -44,6 +43,22 @@ static int compare_priority(gconstpointer a, gconstpointer b)
>   	return plugin2->desc->priority - plugin1->desc->priority;
>   }
>   
> +static int init_plugin(const struct bluetooth_plugin_desc *desc)
> +{
> +	int err;
> +
> +	err = desc->init();
> +	if (err < 0) {
> +		if (err == -ENOSYS || err == -ENOTSUP)
> +			warn("System does not support %s plugin",
> +						desc->name);
> +		else
> +			error("Failed to init %s plugin",
> +						desc->name);
> +	}
> +	return err;
> +}
> +
>   static gboolean add_external_plugin(void *handle,
>   				const struct bluetooth_plugin_desc *desc)
>   {
> @@ -57,19 +72,22 @@ static gboolean add_external_plugin(void *handle,
>   		return FALSE;
>   	}
>   
> -	DBG("Loading %s plugin", desc->name);
> -
>   	plugin = g_try_new0(struct bluetooth_plugin, 1);
>   	if (plugin == NULL)
>   		return FALSE;
>   
>   	plugin->handle = handle;
> -	plugin->active = FALSE;
>   	plugin->desc = desc;
>   
> +	if (init_plugin(desc) < 0) {
> +		g_free(plugin);
> +		return FALSE;
> +	}
> +
>   	__btd_enable_debug(desc->debug_start, desc->debug_stop);
>   
>   	plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
> +	DBG("Plugin %s loaded", desc->name);
>   
>   	return TRUE;
>   }
> @@ -86,7 +104,13 @@ static void add_plugin(const struct bluetooth_plugin_desc *desc)
>   
>   	plugin->desc = desc;
>   
> +	if (init_plugin(desc) < 0) {
> +		g_free(plugin);
> +		return;
> +	}
> +
>   	plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
> +	DBG("Plugin %s loaded", desc->name);
>   }
>   
>   static gboolean enable_plugin(const char *name, char **cli_enable,
> @@ -177,7 +201,6 @@ static void external_plugin_init(char **cli_disabled, char **cli_enabled)
>   
>   void plugin_init(const char *enable, const char *disable)
>   {
> -	GSList *list;
>   	char **cli_disabled = NULL;
>   	char **cli_enabled = NULL;
>   	unsigned int i;
> @@ -205,24 +228,6 @@ void plugin_init(const char *enable, const char *disable)
>   	if IS_ENABLED(EXTERNAL_PLUGINS)
>   		external_plugin_init(cli_enabled, cli_disabled);
>   
> -	for (list = plugins; list; list = list->next) {
> -		struct bluetooth_plugin *plugin = list->data;
> -		int err;
> -
> -		err = plugin->desc->init();
> -		if (err < 0) {
> -			if (err == -ENOSYS || err == -ENOTSUP)
> -				warn("System does not support %s plugin",
> -							plugin->desc->name);
> -			else
> -				error("Failed to init %s plugin",
> -							plugin->desc->name);
> -			continue;
> -		}
> -
> -		plugin->active = TRUE;
> -	}
> -
>   	g_strfreev(cli_enabled);
>   	g_strfreev(cli_disabled);
>   }
> @@ -236,7 +241,7 @@ void plugin_cleanup(void)
>   	for (list = plugins; list; list = list->next) {
>   		struct bluetooth_plugin *plugin = list->data;
>   
> -		if (plugin->active == TRUE && plugin->desc->exit)
> +		if (plugin->desc->exit)
>   			plugin->desc->exit();
>   
>   		if (plugin->handle != NULL)
>
Luiz Augusto von Dentz Jan. 29, 2024, 4:22 p.m. UTC | #2
Hi Paul,

On Mon, Jan 29, 2024 at 10:37 AM Paul Menzel <pmenzel@molgen.mpg.de> wrote:
>
> Dear Emil,
>
>
> Thank you for your patches.
>
> Am 29.01.24 um 15:44 schrieb Emil Velikov via B4 Relay:
> > From: Emil Velikov <emil.velikov@collabora.com>
> >
> > Currently, we print "Loading foobar" for every plugin, before we try the
> > respective init() callback. Instead we handle the latter in a bunch, at
> > the end of the process.
>
> Excuse my ignorance, but would you be so kind to state the problem. It’s
> causing confusion to have `Loading foobar`, in case it fails? It
> clutters the output or uses unnecessory resources?

To me it sounds quite clear that he is refering to the fact that obexd
prints it a little differently so he is just trying to align the
behavior of the daemons.

> > Do the init() call early, print "Loaded" once it's actually successful
> > and drop the no-longer "active" tracking.
>
> It would help me, if you pasted the logs without and with your patch.
>
>
> Kind regards,
>
> Paul
>
>
> > ---
> >   src/plugin.c | 53 +++++++++++++++++++++++++++++------------------------
> >   1 file changed, 29 insertions(+), 24 deletions(-)
> >
> > diff --git a/src/plugin.c b/src/plugin.c
> > index b6a84299a..e6d05be4c 100644
> > --- a/src/plugin.c
> > +++ b/src/plugin.c
> > @@ -32,7 +32,6 @@ static GSList *plugins = NULL;
> >
> >   struct bluetooth_plugin {
> >       void *handle;
> > -     gboolean active;
> >       const struct bluetooth_plugin_desc *desc;
> >   };
> >
> > @@ -44,6 +43,22 @@ static int compare_priority(gconstpointer a, gconstpointer b)
> >       return plugin2->desc->priority - plugin1->desc->priority;
> >   }
> >
> > +static int init_plugin(const struct bluetooth_plugin_desc *desc)
> > +{
> > +     int err;
> > +
> > +     err = desc->init();
> > +     if (err < 0) {
> > +             if (err == -ENOSYS || err == -ENOTSUP)
> > +                     warn("System does not support %s plugin",
> > +                                             desc->name);
> > +             else
> > +                     error("Failed to init %s plugin",
> > +                                             desc->name);
> > +     }
> > +     return err;
> > +}
> > +
> >   static gboolean add_external_plugin(void *handle,
> >                               const struct bluetooth_plugin_desc *desc)
> >   {
> > @@ -57,19 +72,22 @@ static gboolean add_external_plugin(void *handle,
> >               return FALSE;
> >       }
> >
> > -     DBG("Loading %s plugin", desc->name);
> > -
> >       plugin = g_try_new0(struct bluetooth_plugin, 1);
> >       if (plugin == NULL)
> >               return FALSE;
> >
> >       plugin->handle = handle;
> > -     plugin->active = FALSE;
> >       plugin->desc = desc;
> >
> > +     if (init_plugin(desc) < 0) {
> > +             g_free(plugin);
> > +             return FALSE;
> > +     }
> > +
> >       __btd_enable_debug(desc->debug_start, desc->debug_stop);
> >
> >       plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
> > +     DBG("Plugin %s loaded", desc->name);
> >
> >       return TRUE;
> >   }
> > @@ -86,7 +104,13 @@ static void add_plugin(const struct bluetooth_plugin_desc *desc)
> >
> >       plugin->desc = desc;
> >
> > +     if (init_plugin(desc) < 0) {
> > +             g_free(plugin);
> > +             return;
> > +     }
> > +
> >       plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
> > +     DBG("Plugin %s loaded", desc->name);
> >   }
> >
> >   static gboolean enable_plugin(const char *name, char **cli_enable,
> > @@ -177,7 +201,6 @@ static void external_plugin_init(char **cli_disabled, char **cli_enabled)
> >
> >   void plugin_init(const char *enable, const char *disable)
> >   {
> > -     GSList *list;
> >       char **cli_disabled = NULL;
> >       char **cli_enabled = NULL;
> >       unsigned int i;
> > @@ -205,24 +228,6 @@ void plugin_init(const char *enable, const char *disable)
> >       if IS_ENABLED(EXTERNAL_PLUGINS)
> >               external_plugin_init(cli_enabled, cli_disabled);
> >
> > -     for (list = plugins; list; list = list->next) {
> > -             struct bluetooth_plugin *plugin = list->data;
> > -             int err;
> > -
> > -             err = plugin->desc->init();
> > -             if (err < 0) {
> > -                     if (err == -ENOSYS || err == -ENOTSUP)
> > -                             warn("System does not support %s plugin",
> > -                                                     plugin->desc->name);
> > -                     else
> > -                             error("Failed to init %s plugin",
> > -                                                     plugin->desc->name);
> > -                     continue;
> > -             }
> > -
> > -             plugin->active = TRUE;
> > -     }
> > -
> >       g_strfreev(cli_enabled);
> >       g_strfreev(cli_disabled);
> >   }
> > @@ -236,7 +241,7 @@ void plugin_cleanup(void)
> >       for (list = plugins; list; list = list->next) {
> >               struct bluetooth_plugin *plugin = list->data;
> >
> > -             if (plugin->active == TRUE && plugin->desc->exit)
> > +             if (plugin->desc->exit)
> >                       plugin->desc->exit();
> >
> >               if (plugin->handle != NULL)
> >
>
Emil Velikov Jan. 29, 2024, 5:47 p.m. UTC | #3
Hello team,

On Mon, 29 Jan 2024 at 16:22, Luiz Augusto von Dentz
<luiz.dentz@gmail.com> wrote:

>
> To me it sounds quite clear that he is refering to the fact that obexd
> prints it a little differently so he is just trying to align the
> behavior of the daemons.
>

Precisely - we do basic alignment across the two daemons. Both in
terms of code as well as logging pattern.
Although if that's not wanted, please drop this patch. There's a
reason why I kept it near the end of the series ;-)

Re-sending the series for the comma in 8/8 seems excessive IMHO. If
there are other concerns, I'd be happy to respin the lot.
Otherwise I think it's simpler if Luiz fixes it on applying.

Thanks
Emil
diff mbox series

Patch

diff --git a/src/plugin.c b/src/plugin.c
index b6a84299a..e6d05be4c 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -32,7 +32,6 @@  static GSList *plugins = NULL;
 
 struct bluetooth_plugin {
 	void *handle;
-	gboolean active;
 	const struct bluetooth_plugin_desc *desc;
 };
 
@@ -44,6 +43,22 @@  static int compare_priority(gconstpointer a, gconstpointer b)
 	return plugin2->desc->priority - plugin1->desc->priority;
 }
 
+static int init_plugin(const struct bluetooth_plugin_desc *desc)
+{
+	int err;
+
+	err = desc->init();
+	if (err < 0) {
+		if (err == -ENOSYS || err == -ENOTSUP)
+			warn("System does not support %s plugin",
+						desc->name);
+		else
+			error("Failed to init %s plugin",
+						desc->name);
+	}
+	return err;
+}
+
 static gboolean add_external_plugin(void *handle,
 				const struct bluetooth_plugin_desc *desc)
 {
@@ -57,19 +72,22 @@  static gboolean add_external_plugin(void *handle,
 		return FALSE;
 	}
 
-	DBG("Loading %s plugin", desc->name);
-
 	plugin = g_try_new0(struct bluetooth_plugin, 1);
 	if (plugin == NULL)
 		return FALSE;
 
 	plugin->handle = handle;
-	plugin->active = FALSE;
 	plugin->desc = desc;
 
+	if (init_plugin(desc) < 0) {
+		g_free(plugin);
+		return FALSE;
+	}
+
 	__btd_enable_debug(desc->debug_start, desc->debug_stop);
 
 	plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
+	DBG("Plugin %s loaded", desc->name);
 
 	return TRUE;
 }
@@ -86,7 +104,13 @@  static void add_plugin(const struct bluetooth_plugin_desc *desc)
 
 	plugin->desc = desc;
 
+	if (init_plugin(desc) < 0) {
+		g_free(plugin);
+		return;
+	}
+
 	plugins = g_slist_insert_sorted(plugins, plugin, compare_priority);
+	DBG("Plugin %s loaded", desc->name);
 }
 
 static gboolean enable_plugin(const char *name, char **cli_enable,
@@ -177,7 +201,6 @@  static void external_plugin_init(char **cli_disabled, char **cli_enabled)
 
 void plugin_init(const char *enable, const char *disable)
 {
-	GSList *list;
 	char **cli_disabled = NULL;
 	char **cli_enabled = NULL;
 	unsigned int i;
@@ -205,24 +228,6 @@  void plugin_init(const char *enable, const char *disable)
 	if IS_ENABLED(EXTERNAL_PLUGINS)
 		external_plugin_init(cli_enabled, cli_disabled);
 
-	for (list = plugins; list; list = list->next) {
-		struct bluetooth_plugin *plugin = list->data;
-		int err;
-
-		err = plugin->desc->init();
-		if (err < 0) {
-			if (err == -ENOSYS || err == -ENOTSUP)
-				warn("System does not support %s plugin",
-							plugin->desc->name);
-			else
-				error("Failed to init %s plugin",
-							plugin->desc->name);
-			continue;
-		}
-
-		plugin->active = TRUE;
-	}
-
 	g_strfreev(cli_enabled);
 	g_strfreev(cli_disabled);
 }
@@ -236,7 +241,7 @@  void plugin_cleanup(void)
 	for (list = plugins; list; list = list->next) {
 		struct bluetooth_plugin *plugin = list->data;
 
-		if (plugin->active == TRUE && plugin->desc->exit)
+		if (plugin->desc->exit)
 			plugin->desc->exit();
 
 		if (plugin->handle != NULL)