d9b02e1697
Fixes #9320. for p in Shapovalov Chevalier Rozhkov Sievers Mack Herrmann Schmidt Rudenberg Sahani Landden Andersen Watanabe; do git grep -e 'Copyright.*'$p -l|xargs perl -i -0pe 's|/([*][*])?[*]\s+([*#]\s+)?Copyright[^\n]*'$p'[^\n]*\s*[*]([*][*])?/\n*|\n|gms; s|\s+([*#]\s+)?Copyright[^\n]*'$p'[^\n]*\n*|\n|gms' done
160 lines
3.6 KiB
C
160 lines
3.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
|
|
|
|
#include <ctype.h>
|
|
#include <stdarg.h>
|
|
#include <stddef.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "libudev.h"
|
|
|
|
#include "alloc-util.h"
|
|
#include "fd-util.h"
|
|
#include "libudev-private.h"
|
|
#include "missing.h"
|
|
#include "string-util.h"
|
|
|
|
/**
|
|
* SECTION:libudev
|
|
* @short_description: libudev context
|
|
*
|
|
* The context contains the default values read from the udev config file,
|
|
* and is passed to all library operations.
|
|
*/
|
|
|
|
/**
|
|
* udev:
|
|
*
|
|
* Opaque object representing the library context.
|
|
*/
|
|
struct udev {
|
|
int refcount;
|
|
void (*log_fn)(struct udev *udev,
|
|
int priority, const char *file, int line, const char *fn,
|
|
const char *format, va_list args);
|
|
void *userdata;
|
|
};
|
|
|
|
/**
|
|
* udev_get_userdata:
|
|
* @udev: udev library context
|
|
*
|
|
* Retrieve stored data pointer from library context. This might be useful
|
|
* to access from callbacks.
|
|
*
|
|
* Returns: stored userdata
|
|
**/
|
|
_public_ void *udev_get_userdata(struct udev *udev) {
|
|
if (udev == NULL)
|
|
return NULL;
|
|
return udev->userdata;
|
|
}
|
|
|
|
/**
|
|
* udev_set_userdata:
|
|
* @udev: udev library context
|
|
* @userdata: data pointer
|
|
*
|
|
* Store custom @userdata in the library context.
|
|
**/
|
|
_public_ void udev_set_userdata(struct udev *udev, void *userdata) {
|
|
if (udev == NULL)
|
|
return;
|
|
udev->userdata = userdata;
|
|
}
|
|
|
|
/**
|
|
* udev_new:
|
|
*
|
|
* Create udev library context. This only allocates the basic data structure.
|
|
*
|
|
* The initial refcount is 1, and needs to be decremented to
|
|
* release the resources of the udev library context.
|
|
*
|
|
* Returns: a new udev library context
|
|
**/
|
|
_public_ struct udev *udev_new(void) {
|
|
struct udev *udev;
|
|
|
|
udev = new0(struct udev, 1);
|
|
if (!udev) {
|
|
errno = ENOMEM;
|
|
return NULL;
|
|
}
|
|
udev->refcount = 1;
|
|
|
|
return udev;
|
|
}
|
|
|
|
/**
|
|
* udev_ref:
|
|
* @udev: udev library context
|
|
*
|
|
* Take a reference of the udev library context.
|
|
*
|
|
* Returns: the passed udev library context
|
|
**/
|
|
_public_ struct udev *udev_ref(struct udev *udev) {
|
|
if (udev == NULL)
|
|
return NULL;
|
|
udev->refcount++;
|
|
return udev;
|
|
}
|
|
|
|
/**
|
|
* udev_unref:
|
|
* @udev: udev library context
|
|
*
|
|
* Drop a reference of the udev library context. If the refcount
|
|
* reaches zero, the resources of the context will be released.
|
|
*
|
|
* Returns: the passed udev library context if it has still an active reference, or #NULL otherwise.
|
|
**/
|
|
_public_ struct udev *udev_unref(struct udev *udev) {
|
|
if (udev == NULL)
|
|
return NULL;
|
|
udev->refcount--;
|
|
if (udev->refcount > 0)
|
|
return udev;
|
|
return mfree(udev);
|
|
}
|
|
|
|
/**
|
|
* udev_set_log_fn:
|
|
* @udev: udev library context
|
|
* @log_fn: function to be called for log messages
|
|
*
|
|
* This function is deprecated.
|
|
*
|
|
**/
|
|
_public_ void udev_set_log_fn(struct udev *udev,
|
|
void (*log_fn)(struct udev *udev,
|
|
int priority, const char *file, int line, const char *fn,
|
|
const char *format, va_list args)) {
|
|
return;
|
|
}
|
|
|
|
/**
|
|
* udev_get_log_priority:
|
|
* @udev: udev library context
|
|
*
|
|
* This function is deprecated.
|
|
*
|
|
**/
|
|
_public_ int udev_get_log_priority(struct udev *udev) {
|
|
return log_get_max_level();
|
|
}
|
|
|
|
/**
|
|
* udev_set_log_priority:
|
|
* @udev: udev library context
|
|
* @priority: the new log priority
|
|
*
|
|
* This function is deprecated.
|
|
*
|
|
**/
|
|
_public_ void udev_set_log_priority(struct udev *udev, int priority) {
|
|
log_set_max_level(priority);
|
|
}
|