X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsd_login_monitor_new.xml;h=909a3d9bfda5b220949ad56807f2128a17c2ffa2;hb=04d39279245834494baccfdb9349db8bf80abd13;hp=b187ad0dbe9536d2e9adf4558849be97bd5d2f3e;hpb=667c24a6a86a5a26a906b7477ae81dcf4c73e64e;p=elogind.git
diff --git a/man/sd_login_monitor_new.xml b/man/sd_login_monitor_new.xml
index b187ad0db..909a3d9bf 100644
--- a/man/sd_login_monitor_new.xml
+++ b/man/sd_login_monitor_new.xml
@@ -50,7 +50,7 @@
sd_login_monitor_get_events
sd_login_monitor_get_timeout
sd_login_monitor
- Monitor login sessions, seats and users
+ Monitor login sessions, seats, users and virtual machines/containers
@@ -96,23 +96,26 @@
Description
sd_login_monitor_new() may
- be used to monitor login sessions, users and seats. Via
- a monitor object a file descriptor can be integrated
- into an application defined event loop which is woken
- up each time a user logs in, logs out or a seat is
- added or removed, or a session, user, or seat changes
- state otherwise. The first parameter takes a string
- which can be seat (to get
+ be used to monitor login sessions, users, seats, and
+ virtual machines/containers. Via a monitor object a
+ file descriptor can be integrated into an application
+ defined event loop which is woken up each time a user
+ logs in, logs out or a seat is added or removed, or a
+ session, user, seat or virtual machine/container
+ changes state otherwise. The first parameter takes a
+ string which can be seat (to get
only notifications about seats being added, removed or
changed), session (to get only
notifications about sessions being created or removed
- or changed) or uid (to get only
+ or changed), uid (to get only
notifications when a user changes state in respect to
- logins). If notifications shall be generated in all
- these conditions, NULL may be passed. Note that in the
- future additional categories may be defined. The
- second parameter returns a monitor object and needs to
- be freed with the
+ logins) or machine (to get only
+ notifications when a virtual machine or container is
+ started or stopped). If notifications shall be
+ generated in all these conditions, NULL may be
+ passed. Note that in the future additional categories
+ may be defined. The second parameter returns a monitor
+ object and needs to be freed with the
sd_login_monitor_unref() call
after use.
@@ -126,7 +129,7 @@
object. Whenever an event causes the monitor to wake
up the event loop via the file descriptor this
function needs to be called to reset the wake-up
- state. If this call is not invoked the file descriptor
+ state. If this call is not invoked, the file descriptor
will immediately wake up the event loop again.
sd_login_monitor_get_fd()
@@ -151,22 +154,22 @@
sd_login_monitor_get_events()
will return the poll() mask to
wait for. This function will return a combination of
- POLLIN, POLLOUT
+ POLLIN, POLLOUT
and similar to fill into the
- .events field of struct
- pollfd.
+ .events field of struct
+ pollfd.
sd_login_monitor_get_timeout()
will return a timeout value for usage in
poll(). This returns a value in
- microseconds since the epoch of CLOCK_MONOTONIC for
- timing out poll() in
- timeout_usec. See
+ microseconds since the epoch of CLOCK_MONOTONIC
+ for timing out poll() in
+ timeout_usec. See
clock_gettime2
for details about
- CLOCK_MONOTONIC. If there's no
+ CLOCK_MONOTONIC. If there is no
timeout to wait for this will fill in
- (uint64_t) -1 instead. Note that
+ (uint64_t) -1 instead. Note that
poll() takes a relative timeout
in milliseconds rather than an absolute timeout in
microseconds. To convert the absolute 'us' timeout into
@@ -186,7 +189,7 @@ else {
}
The code above does not do any error checking
- for brevity's sake. The calculated msec
+ for brevity's sake. The calculated msec
integer can be passed directly as
poll()'s timeout
parameter.
@@ -203,13 +206,13 @@ else {
sd_login_monitor_get_fd() returns
a Unix file descriptor. On success
sd_login_monitor_get_events()
- returns a combination of POLLIN,
- POLLOUT and suchlike. On failure,
+ returns a combination of POLLIN,
+ POLLOUT and suchlike. On failure,
these calls return a negative errno-style error
code.
sd_login_monitor_unref()
- always returns NULL.
+ always returns NULL.
@@ -223,8 +226,7 @@ else {
sd_login_monitor_get_timeout()
interfaces are available as shared library, which can
be compiled and linked to with the
- libsystemd-login
- pkg-config1
+ libsystemd-login pkg-config1
file.