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transaction: Also log to journal when processes connect to txn

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We have logging when a "client" connects to us over the main bus,
but none when a "process" connects to the transaction-private
DBus socket.

It's going to help us debug problems to log the latter.  In
the future we can try to correlate them, but for now simple
logging in a similar way should help.
This commit is contained in:
Colin Walters 2020-12-14 19:39:59 +00:00 committed by OpenShift Merge Robot
parent 0c5820fd69
commit 3065554ba1
1 changed files with 20 additions and 4 deletions
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24
src/daemon/rpmostreed-transaction.cxx
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@ -21,6 +21,7 @@
#include <libglnx.h>
#include <systemd/sd-journal.h>
#include <systemd/sd-login.h>
#include <stdexcept>
#include "rpmostreed-transaction.h"
@ -121,6 +122,18 @@ transaction_maybe_emit_closed (RpmostreedTransaction *self)
rpmostreed_sysroot_finish_txn (rpmostreed_sysroot_get (), self);
}
static char *
creds_to_string (GCredentials *creds)
{
auto uid = g_credentials_get_unix_user (creds, NULL);
auto pid = g_credentials_get_unix_pid (creds, NULL);
g_autofree char *unit = NULL;
if (pid != -1)
sd_pid_get_unit (pid, &unit);
return g_strdup_printf ("[pid: %u uid: %u unit: %s]", (guint32) pid, (guint32) uid, unit ?: "(unknown)");
}
static void
transaction_connection_closed_cb (GDBusConnection *connection,
gboolean remote_peer_vanished,
@ -129,8 +142,11 @@ transaction_connection_closed_cb (GDBusConnection *connection,
{
RpmostreedTransactionPrivate *priv = rpmostreed_transaction_get_private (self);
g_debug ("%s (%p): Client disconnected",
G_OBJECT_TYPE_NAME (self), self);
g_autofree char *creds = creds_to_string (g_dbus_connection_get_peer_credentials (connection));
if (remote_peer_vanished)
sd_journal_print (LOG_INFO, "Process %s disconnected from transaction progress", creds);
else
sd_journal_print (LOG_INFO, "Disconnecting process %s from transaction progress", creds);
g_hash_table_remove (priv->peer_connections, connection);
@ -162,8 +178,8 @@ transaction_new_connection_cb (GDBusServer *server,
g_hash_table_add (priv->peer_connections, g_object_ref (connection));
g_debug ("%s (%p): Client connected",
G_OBJECT_TYPE_NAME (self), self);
g_autofree char *creds = creds_to_string (g_dbus_connection_get_peer_credentials (connection));
sd_journal_print (LOG_INFO, "Process %s connected to transaction progress", creds);
return TRUE;
}