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prepare for #6133: extend report-lib with API for signal handling

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This commit is contained in:
Christian Grothoff 2020-07-15 14:07:32 +02:00
parent ef0eb9e5bf
commit 5d4d5dcaf4
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GPG Key ID: 939E6BE1E29FC3CC
2 changed files with 80 additions and 0 deletions
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69
src/auditor/report-lib.c
View File

@ -72,6 +72,36 @@ struct GNUNET_TIME_Absolute start_time;
*/
static struct GNUNET_CONTAINER_MultiHashMap *denominations;
/**
* Flag that is raised to 'true' if the user
* presses CTRL-C to abort the audit.
*/
static volatile bool abort_flag;
/**
* Context for the SIG-INT (ctrl-C) handler.
*/
static struct GNUNET_SIGNAL_Context *sig_int;
/**
* Context for the SIGTERM handler.
*/
static struct GNUNET_SIGNAL_Context *sig_term;
/**
* Test if the audit should be aborted because the user
* pressed CTRL-C.
*
* @return false to continue the audit, true to terminate
* cleanly as soon as possible
*/
bool
TALER_ARL_do_abort (void)
{
return abort_flag;
}
/**
* Convert absolute time to human-readable JSON string.
@ -605,6 +635,16 @@ TALER_ARL_amount_subtract_neg_ (struct TALER_Amount *diff,
}
/**
* Signal handler called for signals that should cause us to shutdown.
*/
static void
handle_sigint (void)
{
abort_flag = true;
}
/**
* Setup global variables based on configuration.
*
@ -672,11 +712,30 @@ TALER_ARL_init (const struct GNUNET_CONFIGURATION_Handle *c)
return GNUNET_SYSERR;
}
}
sig_int = GNUNET_SIGNAL_handler_install (SIGINT,
&handle_sigint);
if (NULL == sig_int)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
"signal");
TALER_ARL_done (NULL);
return GNUNET_SYSERR;
}
sig_term = GNUNET_SIGNAL_handler_install (SIGTERM,
&handle_sigint);
if (NULL == sig_term)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
"signal");
TALER_ARL_done (NULL);
return GNUNET_SYSERR;
}
if (NULL ==
(TALER_ARL_edb = TALER_EXCHANGEDB_plugin_load (TALER_ARL_cfg)))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to initialize exchange database plugin.\n");
TALER_ARL_done (NULL);
return GNUNET_SYSERR;
}
if (NULL ==
@ -727,6 +786,16 @@ TALER_ARL_done (json_t *report)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Audit complete\n");
if (NULL != sig_int)
{
GNUNET_SIGNAL_handler_uninstall (sig_int);
sig_int = NULL;
}
if (NULL != sig_term)
{
GNUNET_SIGNAL_handler_uninstall (sig_term);
sig_term = NULL;
}
if (NULL != TALER_ARL_adb)
{
TALER_AUDITORDB_plugin_unload (TALER_ARL_adb);

11
src/auditor/report-lib.h
View File

@ -301,6 +301,17 @@ TALER_ARL_setup_sessions_and_run (TALER_ARL_Analysis ana,
void *ana_cls);
/**
* Test if the audit should be aborted because the user
* pressed CTRL-C.
*
* @return false to continue the audit, true to terminate
* cleanly as soon as possible
*/
bool
TALER_ARL_do_abort (void);
/**
* Setup global variables based on configuration.
*