Re: An alternative way of populating /proc

[Abramo Bagnara]

Matt Aubury wrote:
> 
> The recent debate about the multitude of possible formats for data in
> /proc caused me to think about a short-hand way of populating a /proc
> directory hierarchy. This scheme uses a format string to describe the
> hierarchical data layout, so:
> 
>         create_proc_entries(NULL,
>                 "test:{bar:{x:%d,y:%d,z:%d},foo:%f}",
>                 &x, &y, &z, foo_fun);
> 
> creates a "/proc/test" directory, which further contains a
> subdirectory "bar" and a file "foo". The "bar" subdirectory contains
> three files "x", "y" and "z".
> 

IMHO this is cleaner and easily extensible.
I think it solve all the problems noted but the type checking one.

struct proc_entry {
	char *name;
	int level;
	uid_t owner;
	gid_t group;
	mode_t permission;
	int type;
	void (*func)(int action, void *data);
	void *data;
};

static struct proc_entry entries[] __initdata = {
	{ "test",  0, 0, 0, 0755, PROC_DIR, 0, 0 },
	{   "bar", 1, 0, 0, 0755, PROC_DIR, 0, 0 },
	{     "x", 2, 0, 0, 0644, PROC_INT, 0, &x },
	{     "y", 2, 0, 0, 0644, PROC_INT, 0, &y },
	{     "z", 2, 0, 0, 0644, PROC_INT, 0, &z },
	{   "foo", 1, 0, 0, 0644, PROC_CUSTOM, foo_fun, &data}
};

create_proc_entries(basedir, entries, sizeof(entries) /
sizeof(*entries));

-- 
Abramo Bagnara                       mailto:[e-mail]

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It sounds good!