END_TEST
START_TEST (test_rhythmdb_deserialisation3)
{
RhythmDBQueryModel *model;
/* two entries of different types db */
g_object_set (G_OBJECT (db), "name", "deserialization-test3.xml", NULL);
set_waiting_signal (G_OBJECT (db), "load-complete");
rhythmdb_load (db);
wait_for_signal ();
model = rhythmdb_query_model_new_empty (db);
g_object_set (G_OBJECT (model), "show-hidden", TRUE, NULL);
set_waiting_signal (G_OBJECT (model), "complete");
rhythmdb_do_full_query (db, RHYTHMDB_QUERY_RESULTS (model),
NULL,
RHYTHMDB_QUERY_PROP_EQUALS,
RHYTHMDB_PROP_TYPE, RHYTHMDB_ENTRY_TYPE_IGNORE,
RHYTHMDB_QUERY_END);
wait_for_signal ();
/* FIXME: this fails for some reason
fail_unless (gtk_tree_model_iter_n_children (GTK_TREE_MODEL (model), NULL) == 1, "deserialisation incorrect");*/
g_object_unref (model);
/* TODO: check values */
}
int
main(int argc, char **argv)
{
int status;
timer_t timer;
unsigned long count = 0;
int stop_test = 0;
block_signals();
setup_timer(&timer);
printf("Press Ctrl-C to stop\n");
while (stop_test == 0) {
if (start_timer(timer, 0, 500000000)) {
stop_test = 1;
continue;
}
status = wait_for_signal();
if (status == SIGINT) {
fputs("\033[1B", stdout);
stop_test = 1;
}
else if (status == TIMER_SIGNAL) {
printf("count: %lu\n", ++count);
fputs("\033[1A", stdout);
}
else {
fprintf(stderr, "WTF?\n");
return -1;
}
}
return 0;
}
/* Ensures that terminal is in proper state for a loop iteration. Returns
* non-zero if so, otherwise zero is returned. */
static int
ensure_term_is_ready(void)
{
ui_update_term_state();
update_terminal_settings();
if(curr_stats.term_state == TS_TOO_SMALL)
{
ui_display_too_small_term_msg();
wait_for_signal();
return 0;
}
if(curr_stats.term_state == TS_BACK_TO_NORMAL)
{
ui_drain_input();
curr_stats.term_state = TS_NORMAL;
modes_redraw();
curr_stats.save_msg = 0;
ui_sb_msg("");
}
return 1;
}
/* Ensures that terminal is in proper state for a loop iteration. Returns
* non-zero if so, otherwise zero is returned. */
static int
ensure_term_is_ready(void)
{
ui_update_term_state();
update_terminal_settings();
if(curr_stats.term_state == TS_TOO_SMALL)
{
ui_display_too_small_term_msg();
wait_for_signal();
return 0;
}
if(curr_stats.term_state == TS_BACK_TO_NORMAL)
{
wint_t c;
wtimeout(status_bar, 0);
while(compat_wget_wch(status_bar, &c) != ERR);
curr_stats.term_state = TS_NORMAL;
modes_redraw();
wtimeout(status_bar, cfg.timeout_len);
curr_stats.save_msg = 0;
status_bar_message("");
}
return 1;
}
END_TEST
START_TEST (test_rhythmdb_podcast_upgrade)
{
RhythmDBEntry *entry;
const char *mountpoint;
/* load db with old podcasts setups */
g_object_set (G_OBJECT (db), "name", SHARE_UNINSTALLED_DIR "/../tests/podcast-upgrade.xml", NULL);
set_waiting_signal (G_OBJECT (db), "load-complete");
rhythmdb_load (db);
wait_for_signal ();
entry = rhythmdb_entry_lookup_by_location (db, "file:///home/tester/Desktop/BBC%20Xtra/xtra_20080906-1226a.mp3");
fail_unless (entry != NULL, "entry missing");
fail_unless (rhythmdb_entry_get_entry_type (entry) == RHYTHMDB_ENTRY_TYPE_PODCAST_POST, "entry isn't a podcast");
mountpoint = rhythmdb_entry_get_string (entry, RHYTHMDB_PROP_MOUNTPOINT);
fail_unless (mountpoint != NULL, "no mountpoint for podcast");
fail_unless (strcmp (mountpoint, "http://downloads.bbc.co.uk/podcasts/worldservice/xtra/xtra_20080906-1226a.mp3") == 0, "wrong mountpoint for podcast");
entry = rhythmdb_entry_lookup_by_location (db, "http://downloads.bbc.co.uk/podcasts/worldservice/xtra/xtra_20080903-1217a.mp3");
fail_unless (entry != NULL, "entry not upgraded");
fail_unless (rhythmdb_entry_get_string (entry, RHYTHMDB_PROP_MOUNTPOINT) == NULL, "wrong mountpoint for podcast");
}
int spi_master_send_command(struct spi_comm_packet *cmd)
{
stm32_spi_regs_t *spi = STM32_SPI1_REGS;
int ret;
if (cmd->size + 3 > SPI_PACKET_MAX_SIZE)
return EC_ERROR_OVERFLOW;
/* Wait for SPI_NSS to go low */
if (wait_for_signal(GPIO_A, 1 << 0, 0, 10 * MSEC))
return EC_ERROR_TIMEOUT;
/* Set CS1 (slave SPI_NSS) to low */
STM32_GPIO_BSRR(GPIO_A) = 1 << (6 + 16);
/* Wait for the slave to acknowledge */
master_slave_sync(5);
/* Clock out the packet size. */
spi->dr = cmd->size;
while (!(spi->sr & STM32_SPI_SR_RXNE))
;
ret = spi->dr;
/* Wait for the slave to acknowledge */
master_slave_sync(5);
/* Clock out command. Don't care about input. */
ret = spi_master_read_write_byte(in_msg, ((uint8_t *)cmd) + 1,
cmd->size + SPI_PACKET_HEADER_SIZE - 1);
return ret;
}
int
main (int argc, char **argv)
{
RhythmDB *db;
char *name;
int i;
if (argc < 2) {
name = g_build_filename (rb_user_data_dir(), "rhythmdb.xml", NULL);
g_print ("using %s\n", name);
} else {
name = g_strdup (argv[1]);
}
rb_profile_start ("load test");
g_thread_init (NULL);
rb_threads_init ();
gtk_set_locale ();
gtk_init (&argc, &argv);
rb_debug_init (FALSE);
rb_refstring_system_init ();
rb_file_helpers_init (TRUE);
GDK_THREADS_ENTER ();
db = rhythmdb_tree_new ("test");
g_object_set (G_OBJECT (db), "name", name, NULL);
g_free (name);
for (i = 1; i <= 10; i++) {
int j;
rb_profile_start ("10 rhythmdb loads");
for (j = 1; j <= 10; j++) {
set_waiting_signal (G_OBJECT (db), "load-complete");
rhythmdb_load (db);
wait_for_signal ();
rhythmdb_entry_delete_by_type (db, RHYTHMDB_ENTRY_TYPE_SONG);
rhythmdb_entry_delete_by_type (db, rhythmdb_entry_type_get_by_name (db, "iradio"));
rhythmdb_entry_delete_by_type (db, RHYTHMDB_ENTRY_TYPE_PODCAST_FEED);
rhythmdb_entry_delete_by_type (db, RHYTHMDB_ENTRY_TYPE_PODCAST_POST);
}
rb_profile_end ("10 rhythmdb loads");
g_print ("completed %d loads\n", i * 10);
}
rhythmdb_shutdown (db);
g_object_unref (G_OBJECT (db));
db = NULL;
rb_file_helpers_shutdown ();
rb_refstring_system_shutdown ();
rb_profile_end ("load test");
return 0;
}
static bool perform_dump(const debugger_request_t& request, int fd, int tombstone_fd,
BacktraceMap* backtrace_map, const std::set<pid_t>& siblings,
int* crash_signal) {
if (TEMP_FAILURE_RETRY(write(fd, "\0", 1)) != 1) {
ALOGE("debuggerd: failed to respond to client: %s\n", strerror(errno));
return false;
}
int total_sleep_time_usec = 0;
while (true) {
int signal = wait_for_signal(request.tid, &total_sleep_time_usec);
switch (signal) {
case -1:
ALOGE("debuggerd: timed out waiting for signal");
return false;
case SIGSTOP:
if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
ALOGV("debuggerd: stopped -- dumping to tombstone");
engrave_tombstone(tombstone_fd, backtrace_map, request.pid, request.tid, siblings, signal,
request.original_si_code, request.abort_msg_address);
} else if (request.action == DEBUGGER_ACTION_DUMP_BACKTRACE) {
ALOGV("debuggerd: stopped -- dumping to fd");
dump_backtrace(fd, -1, backtrace_map, request.pid, request.tid, siblings);
} else {
ALOGV("debuggerd: stopped -- continuing");
if (ptrace(PTRACE_CONT, request.tid, 0, 0) != 0) {
ALOGE("debuggerd: ptrace continue failed: %s", strerror(errno));
return false;
}
continue; // loop again
}
break;
case SIGABRT:
case SIGBUS:
case SIGFPE:
case SIGILL:
case SIGSEGV:
#ifdef SIGSTKFLT
case SIGSTKFLT:
#endif
case SIGTRAP:
ALOGV("stopped -- fatal signal\n");
*crash_signal = signal;
engrave_tombstone(tombstone_fd, backtrace_map, request.pid, request.tid, siblings, signal,
request.original_si_code, request.abort_msg_address);
break;
default:
ALOGE("debuggerd: process stopped due to unexpected signal %d\n", signal);
break;
}
break;
}
return true;
}
void communicate(struct sigaction* signal_action, struct Arguments* args) {
// Tell the sever we can go
notify_server();
for (; args->count > 0; --args->size) {
wait_for_signal(signal_action);
notify_server();
}
}
/*-------------------------------------------------------------------------
* Function: end_verification
*
* Purpose: Tells test script that verification routines are completed and
* that the test can wrap up.
*
* Return: void
*
* Programmer: Mike McGreevy
* July 16, 2010
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t end_verification(void)
{
/* Send Signal to SCRIPT to indicate that we're done with verification. */
send_signal(SIGNAL_TO_SCRIPT, "VERIFICATION_DONE", "VERIFICATION_DONE");
/* Wait for Signal from SCRIPT indicating that we can continue. */
if (wait_for_signal(SIGNAL_FROM_SCRIPT) < 0) TEST_ERROR;
return SUCCEED;
error:
return FAIL;
} /* end_verification */
// sends a message with OFS_THREADSIGNAL_MSG signaling
int locking_send_msg(int totask, int port, void *msg, int wpid)
{
set_wait_for_signal(wpid, OFS_THREADSIGNAL_MSG, totask);
if(send_msg(totask, port, msg))
{
return FALSE;
}
// wait for signal
wait_for_signal(wpid);
return TRUE;
}
END_TEST
START_TEST (test_rhythmdb_deserialisation1)
{
RhythmDBQueryModel *model;
/* empty db */
g_object_set (G_OBJECT (db), "name", "deserialization-test1.xml", NULL);
set_waiting_signal (G_OBJECT (db), "load-complete");
rhythmdb_load (db);
wait_for_signal ();
model = rhythmdb_query_model_new_empty (db);
g_object_set (G_OBJECT (model), "show-hidden", TRUE, NULL);
set_waiting_signal (G_OBJECT (model), "complete");
rhythmdb_do_full_query (db, RHYTHMDB_QUERY_RESULTS (model),
NULL,
RHYTHMDB_QUERY_PROP_EQUALS,
RHYTHMDB_PROP_TYPE, RHYTHMDB_ENTRY_TYPE_IGNORE,
RHYTHMDB_QUERY_END);
wait_for_signal ();
fail_unless (gtk_tree_model_iter_n_children (GTK_TREE_MODEL (model), NULL) == 0, "deserialisation incorrect");
g_object_unref (model);
}
/*-------------------------------------------------------------------------
* Function: run_flush_verification_process
*
* Purpose: This function is used to communicate with the test script
* in order to spawn off a process to verify that a flush
* of an individual object was successful.
*
* Return: 0 on Success, 1 on Failure
*
* Programmer: Mike McGreevy
* July 16, 2010
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t run_flush_verification_process(const char * obj_pathname, const char * expected)
{
/* Send Signal to SCRIPT indicating that it should kick off a verification process. */
send_signal(SIGNAL_TO_SCRIPT, obj_pathname, expected);
/* Wait for Signal from SCRIPT indicating that verification process has completed. */
if (wait_for_signal(SIGNAL_FROM_SCRIPT) < 0) TEST_ERROR;
/* Check to see if any errors occurred */
if (check_for_errors() < 0) TEST_ERROR;
/* Return */
return SUCCEED;
error:
return FAIL;
} /* run_flush_verification_process */
/*-------------------------------------------------------------------------
* Function: start_refresh_verification_process
*
* Purpose: This function is used to communicate with the test script
* in order to spawn off a process which will test the
* H5*refresh routine.
*
* Return: 0 on Success, 1 on Failure
*
* Programmer: Mike McGreevy
* July 16, 2010
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t start_refresh_verification_process(const char * obj_pathname)
{
/* Send Signal to SCRIPT indicating that it should kick off a refresh
verification process */
send_signal(SIGNAL_TO_SCRIPT, obj_pathname, NULL);
/* Wait for Signal from VERIFICATION PROCESS indicating that it's opened the
target object and ready for MAIN PROCESS to modify it */
if (wait_for_signal(SIGNAL_BETWEEN_PROCESSES_1) < 0) TEST_ERROR;
/* Check to see if any errors occurred */
if (check_for_errors() < 0) TEST_ERROR;
/* Return */
return SUCCEED;
error:
return FAIL;
} /* start_refresh_verification_process */
/*-------------------------------------------------------------------------
* Function: end_refresh_verification_process
*
* Purpose: This function is used to communicate with the verification
* process spawned by the start_refresh_verification_process
* function. It gives it the go-ahead to call H5*refresh
* on an object and conlcude the refresh verification.
*
* Return: 0 on Success, 1 on Failure
*
* Programmer: Mike McGreevy
* July 16, 2010
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t end_refresh_verification_process(void)
{
/* Send Signal to REFRESH VERIFICATION PROCESS indicating that the object
has been modified and it should now attempt to refresh its metadata,
and verify the results. */
send_signal(SIGNAL_BETWEEN_PROCESSES_2, NULL, NULL);
/* Wait for Signal from SCRIPT indicating that the refresh verification
process has completed. */
if (wait_for_signal(SIGNAL_FROM_SCRIPT) < 0) TEST_ERROR;
/* Check to see if any errors occurred */
if (check_for_errors() < 0) TEST_ERROR;
/* Return */
return SUCCEED;
error:
return FAIL;
} /* end_refresh_verification_process */
int main(int argc, char* argv[])
{
// parse options
addpd::options options(argc, argv);
// create server
server s(options.port(), options.multicast());
// run server in background thread
sigset_t sigmask = block_signals();
boost::thread t(boost::bind(&server::run, &s));
restore_signals(sigmask);
// wait for signal to terminate
wait_for_signal();
// stop the server
s.stop();
t.join();
return 0;
}
void child_code(char *command,int i,int sec){
int result;
printf("[%d]-execute command\n",getpid() );
if (i==1)
{
printf("[%d]-I'm the second child - wait second\n",getpid());
wait_for_signal(command ,sec);
}
else if (i==2) {
printf("[%d]-I'm the first child - start command\n",getpid());
/*result = execl(command,(char *)0);*/
result =system(command);
if (result == -1)
{
kill(pid[i+1%2],SIGTERM);
}
else {
kill(pid[i+1%2],SIGUSR1);
}
}
}
int spi_master_wait_response_async(void)
{
stm32_spi_regs_t *spi = STM32_SPI1_REGS;
int size;
master_slave_sync(40);
if (wait_for_signal(GPIO_A, 1 << 0, 1, 40 * MSEC))
goto err_wait_resp_async;
/* Discard potential garbage in SPI DR */
if (spi->sr & STM32_SPI_SR_RXNE)
in_msg[0] = spi->dr;
/* Get the packet size */
spi->dr = DUMMY_DATA;
while (!(spi->sr & STM32_SPI_SR_RXNE))
;
in_msg[0] = spi->dr;
size = in_msg[0] + SPI_PACKET_HEADER_SIZE;
master_slave_sync(5);
dma_clear_isr(STM32_DMAC_SPI1_TX);
dma_clear_isr(STM32_DMAC_SPI1_RX);
/* Get the rest of the packet*/
dma_start_rx(&dma_rx_option, size - 1, in_msg + 1);
dma_prepare_tx(&dma_tx_option, size - 1, out_msg);
dma_go(dma_get_channel(STM32_DMAC_SPI1_TX));
return EC_SUCCESS;
err_wait_resp_async:
/* Set CS1 (slave SPI_NSS) to high */
STM32_GPIO_BSRR(GPIO_A) = 1 << 6;
return EC_ERROR_TIMEOUT;
}
END_TEST
/* this tests that chained query models, where the base shows hidden entries
* forwards visibility changes correctly. This is basically what static playlists do */
START_TEST (test_hidden_chain_filter)
{
RhythmDBQueryModel *base_model;
RhythmDBQueryModel *filter_model;
RhythmDBQuery *query;
RhythmDBEntry *entry;
GtkTreeIter iter;
GValue val = {0,};
start_test_case ();
/* setup */
base_model = rhythmdb_query_model_new_empty (db);
g_object_set (base_model, "show-hidden", TRUE, NULL);
filter_model = rhythmdb_query_model_new_empty (db);
g_object_set (filter_model, "base-model", base_model, NULL);
query = g_ptr_array_new ();
g_object_set (filter_model, "query", query, NULL);
rhythmdb_query_free (query);
entry = rhythmdb_entry_new (db, RHYTHMDB_ENTRY_TYPE_IGNORE, "file:///whee.ogg");
rhythmdb_commit (db);
g_value_init (&val, G_TYPE_BOOLEAN);
/* add entry to base, should be in both */
rhythmdb_query_model_add_entry (base_model, entry, -1);
fail_unless (rhythmdb_query_model_entry_to_iter (base_model, entry, &iter));
fail_unless (rhythmdb_query_model_entry_to_iter (filter_model, entry, &iter));
end_step ();
/* hide entry, should be in base and not filtered */
g_value_set_boolean (&val, TRUE);
set_waiting_signal (G_OBJECT (db), "entry-changed");
rhythmdb_entry_set (db, entry, RHYTHMDB_PROP_HIDDEN, &val);
rhythmdb_commit (db);
wait_for_signal ();
fail_unless (rhythmdb_query_model_entry_to_iter (base_model, entry, &iter));
fail_if (rhythmdb_query_model_entry_to_iter (filter_model, entry, &iter));
end_step ();
/* show entry again, should be in both */
g_value_set_boolean (&val, FALSE);
set_waiting_signal (G_OBJECT (db), "entry-changed");
rhythmdb_entry_set (db, entry, RHYTHMDB_PROP_HIDDEN, &val);
rhythmdb_commit (db);
wait_for_signal ();
fail_unless (rhythmdb_query_model_entry_to_iter (base_model, entry, &iter));
fail_unless (rhythmdb_query_model_entry_to_iter (filter_model, entry, &iter));
end_step ();
/* tidy up */
rhythmdb_entry_delete (db, entry);
g_object_unref (base_model);
g_object_unref (filter_model);
g_value_unset (&val);
end_test_case ();
}
/*-------------------------------------------------------------------------
* Function: refresh_verification
*
* Purpose: This function opens the specified object, and checks to see
* that is does not have any attributes on it. It then sends
* a signal to the main process, which will flush the object
* (putting an attribute on the object on disk). This function
* will then refresh the object, and verify that it has picked
* up the new metadata reflective of the added attribute.
*
* Return: 0 on Success, 1 on Failure
*
* Programmer: Mike McGreevy
* July 16, 2010
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
herr_t refresh_verification(const char * obj_pathname)
{
/* Variables */
hid_t oid,fid,status = 0;
H5O_info_t flushed_oinfo;
H5O_info_t refreshed_oinfo;
/* Open Object */
if ((fid = H5Fopen(FILENAME, H5F_ACC_SWMR_READ, H5P_DEFAULT)) < 0) PROCESS_ERROR;
if ((oid = H5Oopen(fid, obj_pathname, H5P_DEFAULT)) < 0) PROCESS_ERROR;
/* Get Object info */
if ((status = H5Oget_info(oid, &flushed_oinfo)) < 0) PROCESS_ERROR;
/* Make sure there are no attributes on the object. This is just a sanity
check to ensure we didn't erroneously flush the attribute before
starting the verification. */
if (flushed_oinfo.num_attrs != 0) PROCESS_ERROR;
/* Send Signal to MAIN PROCESS indicating that it can go ahead and modify the
object. */
send_signal(SIGNAL_BETWEEN_PROCESSES_1, NULL, NULL);
/* Wait for Signal from MAIN PROCESS indicating that it's modified the
object and we can run verification now. */
if (wait_for_signal(SIGNAL_BETWEEN_PROCESSES_2) < 0) PROCESS_ERROR;
/* Get object info again. This will NOT reflect what's on disk, only what's
in the cache. Thus, all values will be unchanged from above, despite
newer information being on disk. */
if ((status = H5Oget_info(oid, &refreshed_oinfo)) < 0) PROCESS_ERROR;
/* Verify that before doing a refresh, getting the object info returns stale
information. (i.e., unchanged from above, despite new info on disk). */
if (flushed_oinfo.addr != refreshed_oinfo.addr) PROCESS_ERROR;
if (flushed_oinfo.type != refreshed_oinfo.type) PROCESS_ERROR;
if (flushed_oinfo.hdr.version != refreshed_oinfo.hdr.version) PROCESS_ERROR;
if (flushed_oinfo.hdr.flags != refreshed_oinfo.hdr.flags) PROCESS_ERROR;
if (flushed_oinfo.num_attrs != refreshed_oinfo.num_attrs) PROCESS_ERROR;
if (flushed_oinfo.hdr.nmesgs != refreshed_oinfo.hdr.nmesgs) PROCESS_ERROR;
if (flushed_oinfo.hdr.nchunks != refreshed_oinfo.hdr.nchunks) PROCESS_ERROR;
if (flushed_oinfo.hdr.space.total != refreshed_oinfo.hdr.space.total) PROCESS_ERROR;
/* Refresh object */
/* The H5*refresh function called depends on which object we are trying
* to refresh. (MIKE: add desired refresh call as parameter so adding new
* test cases is easy). */
if ((strcmp(obj_pathname, D1) == 0) ||
(strcmp(obj_pathname, D2) == 0)) {
if (H5Drefresh(oid) < 0) PROCESS_ERROR;
} /* end if */
else if ((strcmp(obj_pathname, G1) == 0) ||
(strcmp(obj_pathname, G2) == 0)) {
if (H5Grefresh(oid) < 0) PROCESS_ERROR;
} /* end if */
else if ((strcmp(obj_pathname, T1) == 0) ||
(strcmp(obj_pathname, T2) == 0)) {
if (H5Trefresh(oid) < 0) PROCESS_ERROR;
} /* end if */
else if ((strcmp(obj_pathname, D3) == 0) ||
(strcmp(obj_pathname, G3) == 0) ||
(strcmp(obj_pathname, T3) == 0)) {
if (H5Orefresh(oid) < 0) PROCESS_ERROR;
} /* end if */
else {
HDfprintf(stdout, "Error. %s is an unrecognized object.\n", obj_pathname);
PROCESS_ERROR;
} /* end else */
/* Get object info. This should now accurately reflect the refreshed object on disk. */
if ((status = H5Oget_info(oid, &refreshed_oinfo)) < 0) PROCESS_ERROR;
/* Confirm following attributes are the same: */
if (flushed_oinfo.addr != refreshed_oinfo.addr) PROCESS_ERROR;
if (flushed_oinfo.type != refreshed_oinfo.type) PROCESS_ERROR;
if (flushed_oinfo.hdr.version != refreshed_oinfo.hdr.version) PROCESS_ERROR;
if (flushed_oinfo.hdr.flags != refreshed_oinfo.hdr.flags) PROCESS_ERROR;
/* Confirm following attributes are different */
if (flushed_oinfo.num_attrs == refreshed_oinfo.num_attrs) PROCESS_ERROR;
if (flushed_oinfo.hdr.nmesgs == refreshed_oinfo.hdr.nmesgs) PROCESS_ERROR;
if (flushed_oinfo.hdr.nchunks == refreshed_oinfo.hdr.nchunks) PROCESS_ERROR;
if (flushed_oinfo.hdr.space.total == refreshed_oinfo.hdr.space.total) PROCESS_ERROR;
/* Close objects */
if (H5Oclose(oid) < 0) PROCESS_ERROR;
if (H5Fclose(fid) < 0) PROCESS_ERROR;
/* Return */
return SUCCEED;
error:
return FAIL;
} /* refresh_verification */
/*
* Main program. Initialize us, disconnect us from the tty if necessary,
* and loop waiting for I/O and/or timer expiries.
*/
int
ntpdmain(
int argc,
char *argv[]
)
{
l_fp now;
struct recvbuf *rbuf;
#ifdef _AIX /* HMS: ifdef SIGDANGER? */
struct sigaction sa;
#endif
progname = argv[0];
initializing = 1; /* mark that we are initializing */
process_commandline_opts(&argc, &argv);
init_logging(progname, 1); /* Open the log file */
char *error = NULL;
if (sandbox_init("ntpd", SANDBOX_NAMED, &error) == -1) {
msyslog(LOG_ERR, "sandbox_init(ntpd, SANDBOX_NAMED) failed: %s", error);
sandbox_free_error(error);
}
#ifdef HAVE_UMASK
{
mode_t uv;
uv = umask(0);
if(uv)
(void) umask(uv);
else
(void) umask(022);
}
#endif
#if defined(HAVE_GETUID) && !defined(MPE) /* MPE lacks the concept of root */
{
uid_t uid;
uid = getuid();
if (uid && !HAVE_OPT( SAVECONFIGQUIT )) {
msyslog(LOG_ERR, "ntpd: must be run as root, not uid %ld", (long)uid);
printf("must be run as root, not uid %ld\n", (long)uid);
exit(1);
}
}
#endif
/* getstartup(argc, argv); / * startup configuration, may set debug */
#ifdef DEBUG
debug = DESC(DEBUG_LEVEL).optOccCt;
DPRINTF(1, ("%s\n", Version));
#endif
/* honor -l/--logfile option to log to a file */
setup_logfile();
/*
* Enable the Multi-Media Timer for Windows?
*/
#ifdef SYS_WINNT
if (HAVE_OPT( MODIFYMMTIMER ))
set_mm_timer(MM_TIMER_HIRES);
#endif
if (HAVE_OPT( NOFORK ) || HAVE_OPT( QUIT )
#ifdef DEBUG
|| debug
#endif
|| HAVE_OPT( SAVECONFIGQUIT ))
nofork = 1;
if (HAVE_OPT( NOVIRTUALIPS ))
listen_to_virtual_ips = 0;
/*
* --interface, listen on specified interfaces
*/
if (HAVE_OPT( INTERFACE )) {
int ifacect = STACKCT_OPT( INTERFACE );
const char** ifaces = STACKLST_OPT( INTERFACE );
isc_netaddr_t netaddr;
while (ifacect-- > 0) {
add_nic_rule(
is_ip_address(*ifaces, &netaddr)
? MATCH_IFADDR
: MATCH_IFNAME,
*ifaces, -1, ACTION_LISTEN);
ifaces++;
}
}
if (HAVE_OPT( NICE ))
priority_done = 0;
#if defined(HAVE_SCHED_SETSCHEDULER)
if (HAVE_OPT( PRIORITY )) {
config_priority = OPT_VALUE_PRIORITY;
config_priority_override = 1;
priority_done = 0;
}
#endif
#ifdef SYS_WINNT
/*
* Start interpolation thread, must occur before first
* get_systime()
*/
init_winnt_time();
#endif
/*
* Initialize random generator and public key pair
*/
get_systime(&now);
ntp_srandom((int)(now.l_i * now.l_uf));
#if !defined(VMS)
# ifndef NODETACH
/*
* Detach us from the terminal. May need an #ifndef GIZMO.
*/
if (!nofork) {
/*
* Install trap handlers to log errors and assertion
* failures. Default handlers print to stderr which
* doesn't work if detached.
*/
isc_assertion_setcallback(assertion_failed);
isc_error_setfatal(library_fatal_error);
isc_error_setunexpected(library_unexpected_error);
# ifndef SYS_WINNT
# ifdef HAVE_DAEMON
daemon(0, 0);
# else /* not HAVE_DAEMON */
if (fork()) /* HMS: What about a -1? */
exit(0);
{
#if !defined(F_CLOSEM)
u_long s;
int max_fd;
#endif /* !FCLOSEM */
if (syslog_file != NULL) {
fclose(syslog_file);
syslog_file = NULL;
}
#if defined(F_CLOSEM)
/*
* From 'Writing Reliable AIX Daemons,' SG24-4946-00,
* by Eric Agar (saves us from doing 32767 system
* calls)
*/
if (fcntl(0, F_CLOSEM, 0) == -1)
msyslog(LOG_ERR, "ntpd: failed to close open files(): %m");
#else /* not F_CLOSEM */
# if defined(HAVE_SYSCONF) && defined(_SC_OPEN_MAX)
max_fd = sysconf(_SC_OPEN_MAX);
# else /* HAVE_SYSCONF && _SC_OPEN_MAX */
max_fd = getdtablesize();
# endif /* HAVE_SYSCONF && _SC_OPEN_MAX */
for (s = 0; s < max_fd; s++)
(void) close((int)s);
#endif /* not F_CLOSEM */
(void) open("/", 0);
(void) dup2(0, 1);
(void) dup2(0, 2);
init_logging(progname, 0);
/* we lost our logfile (if any) daemonizing */
setup_logfile();
#ifdef SYS_DOMAINOS
{
uid_$t puid;
status_$t st;
proc2_$who_am_i(&puid);
proc2_$make_server(&puid, &st);
}
#endif /* SYS_DOMAINOS */
#if defined(HAVE_SETPGID) || defined(HAVE_SETSID)
# ifdef HAVE_SETSID
if (setsid() == (pid_t)-1)
msyslog(LOG_ERR, "ntpd: setsid(): %m");
# else
if (setpgid(0, 0) == -1)
msyslog(LOG_ERR, "ntpd: setpgid(): %m");
# endif
#else /* HAVE_SETPGID || HAVE_SETSID */
{
# if defined(TIOCNOTTY)
int fid;
fid = open("/dev/tty", 2);
if (fid >= 0)
{
(void) ioctl(fid, (u_long) TIOCNOTTY, (char *) 0);
(void) close(fid);
}
# endif /* defined(TIOCNOTTY) */
# ifdef HAVE_SETPGRP_0
(void) setpgrp();
# else /* HAVE_SETPGRP_0 */
(void) setpgrp(0, getpid());
# endif /* HAVE_SETPGRP_0 */
}
#endif /* HAVE_SETPGID || HAVE_SETSID */
#ifdef _AIX
/* Don't get killed by low-on-memory signal. */
sa.sa_handler = catch_danger;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
(void) sigaction(SIGDANGER, &sa, NULL);
#endif /* _AIX */
}
# endif /* not HAVE_DAEMON */
# endif /* SYS_WINNT */
}
# endif /* NODETACH */
#endif /* VMS */
#ifdef SCO5_CLOCK
/*
* SCO OpenServer's system clock offers much more precise timekeeping
* on the base CPU than the other CPUs (for multiprocessor systems),
* so we must lock to the base CPU.
*/
{
int fd = open("/dev/at1", O_RDONLY);
if (fd >= 0) {
int zero = 0;
if (ioctl(fd, ACPU_LOCK, &zero) < 0)
msyslog(LOG_ERR, "cannot lock to base CPU: %m");
close( fd );
} /* else ...
* If we can't open the device, this probably just isn't
* a multiprocessor system, so we're A-OK.
*/
}
#endif
#if defined(HAVE_MLOCKALL) && defined(MCL_CURRENT) && defined(MCL_FUTURE)
# ifdef HAVE_SETRLIMIT
/*
* Set the stack limit to something smaller, so that we don't lock a lot
* of unused stack memory.
*/
{
struct rlimit rl;
/* HMS: must make the rlim_cur amount configurable */
if (getrlimit(RLIMIT_STACK, &rl) != -1
&& (rl.rlim_cur = 50 * 4096) < rl.rlim_max)
{
if (setrlimit(RLIMIT_STACK, &rl) == -1)
{
msyslog(LOG_ERR,
"Cannot adjust stack limit for mlockall: %m");
}
}
# ifdef RLIMIT_MEMLOCK
/*
* The default RLIMIT_MEMLOCK is very low on Linux systems.
* Unless we increase this limit malloc calls are likely to
* fail if we drop root privlege. To be useful the value
* has to be larger than the largest ntpd resident set size.
*/
rl.rlim_cur = rl.rlim_max = 32*1024*1024;
if (setrlimit(RLIMIT_MEMLOCK, &rl) == -1) {
msyslog(LOG_ERR, "Cannot set RLIMIT_MEMLOCK: %m");
}
# endif /* RLIMIT_MEMLOCK */
}
# endif /* HAVE_SETRLIMIT */
/*
* lock the process into memory
*/
if (mlockall(MCL_CURRENT|MCL_FUTURE) < 0)
msyslog(LOG_ERR, "mlockall(): %m");
#else /* not (HAVE_MLOCKALL && MCL_CURRENT && MCL_FUTURE) */
# ifdef HAVE_PLOCK
# ifdef PROCLOCK
# ifdef _AIX
/*
* set the stack limit for AIX for plock().
* see get_aix_stack() for more info.
*/
if (ulimit(SET_STACKLIM, (get_aix_stack() - 8*4096)) < 0)
{
msyslog(LOG_ERR,"Cannot adjust stack limit for plock on AIX: %m");
}
# endif /* _AIX */
/*
* lock the process into memory
*/
if (plock(PROCLOCK) < 0)
msyslog(LOG_ERR, "plock(PROCLOCK): %m");
# else /* not PROCLOCK */
# ifdef TXTLOCK
/*
* Lock text into ram
*/
if (plock(TXTLOCK) < 0)
msyslog(LOG_ERR, "plock(TXTLOCK) error: %m");
# else /* not TXTLOCK */
msyslog(LOG_ERR, "plock() - don't know what to lock!");
# endif /* not TXTLOCK */
# endif /* not PROCLOCK */
# endif /* HAVE_PLOCK */
#endif /* not (HAVE_MLOCKALL && MCL_CURRENT && MCL_FUTURE) */
/*
* Set up signals we pay attention to locally.
*/
#ifdef SIGDIE1
(void) signal_no_reset(SIGDIE1, finish);
#endif /* SIGDIE1 */
#ifdef SIGDIE2
(void) signal_no_reset(SIGDIE2, finish);
#endif /* SIGDIE2 */
#ifdef SIGDIE3
(void) signal_no_reset(SIGDIE3, finish);
#endif /* SIGDIE3 */
#ifdef SIGDIE4
(void) signal_no_reset(SIGDIE4, finish);
#endif /* SIGDIE4 */
#ifdef SIGBUS
(void) signal_no_reset(SIGBUS, finish);
#endif /* SIGBUS */
#if !defined(SYS_WINNT) && !defined(VMS)
# ifdef DEBUG
(void) signal_no_reset(MOREDEBUGSIG, moredebug);
(void) signal_no_reset(LESSDEBUGSIG, lessdebug);
# else
(void) signal_no_reset(MOREDEBUGSIG, no_debug);
(void) signal_no_reset(LESSDEBUGSIG, no_debug);
# endif /* DEBUG */
#endif /* !SYS_WINNT && !VMS */
/*
* Set up signals we should never pay attention to.
*/
#if defined SIGPIPE
(void) signal_no_reset(SIGPIPE, SIG_IGN);
#endif /* SIGPIPE */
/*
* Call the init_ routines to initialize the data structures.
*
* Exactly what command-line options are we expecting here?
*/
init_auth();
init_util();
init_restrict();
init_mon();
init_timer();
init_lib();
init_request();
init_control();
init_peer();
#ifdef REFCLOCK
init_refclock();
#endif
set_process_priority();
init_proto(); /* Call at high priority */
init_io();
init_loopfilter();
mon_start(MON_ON); /* monitor on by default now */
/* turn off in config if unwanted */
/*
* Get the configuration. This is done in a separate module
* since this will definitely be different for the gizmo board.
*/
getconfig(argc, argv);
NLOG(NLOG_SYSINFO) /* 'if' clause for syslog */
msyslog(LOG_NOTICE, "%s", Version);
report_event(EVNT_SYSRESTART, NULL, NULL);
loop_config(LOOP_DRIFTCOMP, old_drift);
initializing = 0;
#ifdef HAVE_DROPROOT
if( droproot ) {
/* Drop super-user privileges and chroot now if the OS supports this */
#ifdef HAVE_LINUX_CAPABILITIES
/* set flag: keep privileges accross setuid() call (we only really need cap_sys_time): */
if (prctl( PR_SET_KEEPCAPS, 1L, 0L, 0L, 0L ) == -1) {
msyslog( LOG_ERR, "prctl( PR_SET_KEEPCAPS, 1L ) failed: %m" );
exit(-1);
}
#else
/* we need a user to switch to */
if (user == NULL) {
msyslog(LOG_ERR, "Need user name to drop root privileges (see -u flag!)" );
exit(-1);
}
#endif /* HAVE_LINUX_CAPABILITIES */
if (user != NULL) {
if (isdigit((unsigned char)*user)) {
sw_uid = (uid_t)strtoul(user, &endp, 0);
if (*endp != '\0')
goto getuser;
if ((pw = getpwuid(sw_uid)) != NULL) {
user = strdup(pw->pw_name);
if (NULL == user) {
msyslog(LOG_ERR, "strdup() failed: %m");
exit (-1);
}
sw_gid = pw->pw_gid;
} else {
errno = 0;
msyslog(LOG_ERR, "Cannot find user ID %s", user);
exit (-1);
}
} else {
getuser:
errno = 0;
if ((pw = getpwnam(user)) != NULL) {
sw_uid = pw->pw_uid;
sw_gid = pw->pw_gid;
} else {
if (errno)
msyslog(LOG_ERR, "getpwnam(%s) failed: %m", user);
else
msyslog(LOG_ERR, "Cannot find user `%s'", user);
exit (-1);
}
}
}
if (group != NULL) {
if (isdigit((unsigned char)*group)) {
sw_gid = (gid_t)strtoul(group, &endp, 0);
if (*endp != '\0')
goto getgroup;
} else {
getgroup:
if ((gr = getgrnam(group)) != NULL) {
sw_gid = gr->gr_gid;
} else {
errno = 0;
msyslog(LOG_ERR, "Cannot find group `%s'", group);
exit (-1);
}
}
}
if (chrootdir ) {
/* make sure cwd is inside the jail: */
if (chdir(chrootdir)) {
msyslog(LOG_ERR, "Cannot chdir() to `%s': %m", chrootdir);
exit (-1);
}
if (chroot(chrootdir)) {
msyslog(LOG_ERR, "Cannot chroot() to `%s': %m", chrootdir);
exit (-1);
}
if (chdir("/")) {
msyslog(LOG_ERR, "Cannot chdir() to`root after chroot(): %m");
exit (-1);
}
}
if (user && initgroups(user, sw_gid)) {
msyslog(LOG_ERR, "Cannot initgroups() to user `%s': %m", user);
exit (-1);
}
if (group && setgid(sw_gid)) {
msyslog(LOG_ERR, "Cannot setgid() to group `%s': %m", group);
exit (-1);
}
if (group && setegid(sw_gid)) {
msyslog(LOG_ERR, "Cannot setegid() to group `%s': %m", group);
exit (-1);
}
if (user && setuid(sw_uid)) {
msyslog(LOG_ERR, "Cannot setuid() to user `%s': %m", user);
exit (-1);
}
if (user && seteuid(sw_uid)) {
msyslog(LOG_ERR, "Cannot seteuid() to user `%s': %m", user);
exit (-1);
}
#ifndef HAVE_LINUX_CAPABILITIES
/*
* for now assume that the privilege to bind to privileged ports
* is associated with running with uid 0 - should be refined on
* ports that allow binding to NTP_PORT with uid != 0
*/
disable_dynamic_updates |= (sw_uid != 0); /* also notifies routing message listener */
#endif
if (disable_dynamic_updates && interface_interval) {
interface_interval = 0;
msyslog(LOG_INFO, "running in unprivileged mode disables dynamic interface tracking");
}
#ifdef HAVE_LINUX_CAPABILITIES
do {
/*
* We may be running under non-root uid now, but we still hold full root privileges!
* We drop all of them, except for the crucial one or two: cap_sys_time and
* cap_net_bind_service if doing dynamic interface tracking.
*/
cap_t caps;
char *captext = (interface_interval)
? "cap_sys_time,cap_net_bind_service=ipe"
: "cap_sys_time=ipe";
if( ! ( caps = cap_from_text( captext ) ) ) {
msyslog( LOG_ERR, "cap_from_text() failed: %m" );
exit(-1);
}
if( cap_set_proc( caps ) == -1 ) {
msyslog( LOG_ERR, "cap_set_proc() failed to drop root privileges: %m" );
exit(-1);
}
cap_free( caps );
} while(0);
#endif /* HAVE_LINUX_CAPABILITIES */
} /* if( droproot ) */
#endif /* HAVE_DROPROOT */
/*
* Use select() on all on all input fd's for unlimited
* time. select() will terminate on SIGALARM or on the
* reception of input. Using select() means we can't do
* robust signal handling and we get a potential race
* between checking for alarms and doing the select().
* Mostly harmless, I think.
*/
/* On VMS, I suspect that select() can't be interrupted
* by a "signal" either, so I take the easy way out and
* have select() time out after one second.
* System clock updates really aren't time-critical,
* and - lacking a hardware reference clock - I have
* yet to learn about anything else that is.
*/
#if defined(HAVE_IO_COMPLETION_PORT)
for (;;) {
GetReceivedBuffers();
#else /* normal I/O */
BLOCK_IO_AND_ALARM();
was_alarmed = 0;
for (;;)
{
# if !defined(HAVE_SIGNALED_IO)
extern fd_set activefds;
extern int maxactivefd;
fd_set rdfdes;
int nfound;
# endif
if (alarm_flag) /* alarmed? */
{
was_alarmed = 1;
alarm_flag = 0;
}
if (!was_alarmed && has_full_recv_buffer() == ISC_FALSE)
{
/*
* Nothing to do. Wait for something.
*/
# ifndef HAVE_SIGNALED_IO
rdfdes = activefds;
# if defined(VMS) || defined(SYS_VXWORKS)
/* make select() wake up after one second */
{
struct timeval t1;
t1.tv_sec = 1; t1.tv_usec = 0;
nfound = select(maxactivefd+1, &rdfdes, (fd_set *)0,
(fd_set *)0, &t1);
}
# else
nfound = select(maxactivefd+1, &rdfdes, (fd_set *)0,
(fd_set *)0, (struct timeval *)0);
# endif /* VMS */
if (nfound > 0)
{
l_fp ts;
get_systime(&ts);
(void)input_handler(&ts);
}
else if (nfound == -1 && errno != EINTR)
msyslog(LOG_ERR, "select() error: %m");
# ifdef DEBUG
else if (debug > 5)
msyslog(LOG_DEBUG, "select(): nfound=%d, error: %m", nfound);
# endif /* DEBUG */
# else /* HAVE_SIGNALED_IO */
wait_for_signal();
# endif /* HAVE_SIGNALED_IO */
if (alarm_flag) /* alarmed? */
{
was_alarmed = 1;
alarm_flag = 0;
}
}
if (was_alarmed)
{
UNBLOCK_IO_AND_ALARM();
/*
* Out here, signals are unblocked. Call timer routine
* to process expiry.
*/
timer();
was_alarmed = 0;
BLOCK_IO_AND_ALARM();
}
#endif /* ! HAVE_IO_COMPLETION_PORT */
#ifdef DEBUG_TIMING
{
l_fp pts;
l_fp tsa, tsb;
int bufcount = 0;
get_systime(&pts);
tsa = pts;
#endif
rbuf = get_full_recv_buffer();
while (rbuf != NULL)
{
if (alarm_flag)
{
was_alarmed = 1;
alarm_flag = 0;
}
UNBLOCK_IO_AND_ALARM();
if (was_alarmed)
{ /* avoid timer starvation during lengthy I/O handling */
timer();
was_alarmed = 0;
}
/*
* Call the data procedure to handle each received
* packet.
*/
if (rbuf->receiver != NULL) /* This should always be true */
{
#ifdef DEBUG_TIMING
l_fp dts = pts;
L_SUB(&dts, &rbuf->recv_time);
DPRINTF(2, ("processing timestamp delta %s (with prec. fuzz)\n", lfptoa(&dts, 9)));
collect_timing(rbuf, "buffer processing delay", 1, &dts);
bufcount++;
#endif
(rbuf->receiver)(rbuf);
} else {
msyslog(LOG_ERR, "receive buffer corruption - receiver found to be NULL - ABORTING");
abort();
}
BLOCK_IO_AND_ALARM();
freerecvbuf(rbuf);
rbuf = get_full_recv_buffer();
}
#ifdef DEBUG_TIMING
get_systime(&tsb);
L_SUB(&tsb, &tsa);
if (bufcount) {
collect_timing(NULL, "processing", bufcount, &tsb);
DPRINTF(2, ("processing time for %d buffers %s\n", bufcount, lfptoa(&tsb, 9)));
}
}
#endif
/*
* Go around again
*/
#ifdef HAVE_DNSREGISTRATION
if (mdnsreg && (current_time - mdnsreg ) > 60 && mdnstries && sys_leap != LEAP_NOTINSYNC) {
mdnsreg = current_time;
msyslog(LOG_INFO, "Attemping to register mDNS");
if ( DNSServiceRegister (&mdns, 0, 0, NULL, "_ntp._udp", NULL, NULL,
htons(NTP_PORT), 0, NULL, NULL, NULL) != kDNSServiceErr_NoError ) {
if (!--mdnstries) {
msyslog(LOG_ERR, "Unable to register mDNS, giving up.");
} else {
msyslog(LOG_INFO, "Unable to register mDNS, will try later.");
}
} else {
msyslog(LOG_INFO, "mDNS service registered.");
mdnsreg = 0;
}
}
#endif /* HAVE_DNSREGISTRATION */
}
UNBLOCK_IO_AND_ALARM();
return 1;
}
#ifdef SIGDIE2
/*
* finish - exit gracefully
*/
static RETSIGTYPE
finish(
int sig
)
{
msyslog(LOG_NOTICE, "ntpd exiting on signal %d", sig);
#ifdef HAVE_DNSREGISTRATION
if (mdns != NULL)
DNSServiceRefDeallocate(mdns);
#endif
switch (sig) {
# ifdef SIGBUS
case SIGBUS:
printf("\nfinish(SIGBUS)\n");
exit(0);
# endif
case 0: /* Should never happen... */
return;
default:
exit(0);
}
}
void *
sampleset_worker_function(void *arg)
{
int render_needed,
render_index = 0,
i;
y_sampleset_t *ss, *render_ss = NULL;
y_sample_t *sample, *needs_freeing_sample_list, *prev;
/* -FIX- ardour has:
* pthread_setcancelstate (PTHREAD_CANCEL_ENABLE, 0);
* pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, 0);
* plus the SCHED_FIFO setting. Why the cancel settings?
*/
while (!global.worker_thread_done) {
wait_for_signal();
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: what needs to be done?\n");
pthread_mutex_lock(&global.sampleset_mutex);
/* loop until no samples needing to be rendered are found */
do {
/* scan the sampleset list, assigning any already-rendered samples */
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: beginning render check\n");
render_needed = 0;
for (ss = global.active_sampleset_list; ss; ss = ss->next) {
int all_samples_rendered;
if (ss->rendered)
continue;
else if (!ss->set_up) {
if (ss->mode == Y_OSCILLATOR_MODE_PADSYNTH)
padsynth_sampletable_setup(ss);
else
sampleset_dummy_sampletable_setup(ss);
ss->set_up = 1;
}
all_samples_rendered = 1;
for (i = 0; i < WAVETABLE_MAX_WAVES; i++) {
if (ss->sample[i] == NULL) {
sample = sampleset_find_sample(ss, i);
if (sample) {
sample->ref_count++;
ss->sample[i] = sample;
} else {
render_needed = 1;
render_ss = ss;
render_index = i;
all_samples_rendered = 0;
}
}
if (ss->max_key[i] == 256) {
if (all_samples_rendered)
ss->rendered = 1;
break;
}
}
}
/* if we found a sample in need of rendering, bump the reference
* count on its sampleset to make sure it doesn't get garbage
* collected */
if (render_needed)
render_ss->ref_count++;
/* all rendered samples should be assigned, so garbage collect now */
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: beginning garbage collect\n");
ss = global.active_sampleset_list;
while (ss) {
if (ss->ref_count == 0) {
y_sampleset_t *t = ss;
ss = ss->next;
sampleset_free(t);
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: freeing unused sampleset %p\n", t);
} else
ss = ss->next;
}
needs_freeing_sample_list = NULL;
prev = NULL;
sample = global.active_sample_list;
while (sample) {
if (sample->ref_count == 0) {
y_sample_t *t = sample;
if (prev)
prev->next = sample->next;
else
global.active_sample_list = sample->next;
sample = sample->next;
t->next = needs_freeing_sample_list;
needs_freeing_sample_list = t;
} else {
prev = sample;
sample = sample->next;
}
}
/* free unused samples */
if (needs_freeing_sample_list) {
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: freeing unused samples\n");
pthread_mutex_unlock(&global.sampleset_mutex);
for (sample = needs_freeing_sample_list; sample; sample = sample->next) {
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: freeing unused sample %p\n", sample);
free(sample->data - 4);
}
pthread_mutex_lock(&global.sampleset_mutex);
while (needs_freeing_sample_list) {
sample = needs_freeing_sample_list;
needs_freeing_sample_list = sample->next;
sample->next = global.free_sample_list;
global.free_sample_list = sample;
}
}
/* render the sample */
if (render_needed) {
int rc;
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: beginning render\n");
sample = global.free_sample_list;
if (sample == NULL) {
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function ERROR: no free samples!\n");
render_needed = 0;
break;
}
global.free_sample_list = sample->next;
sample->ref_count = 0;
sample->mode = render_ss->mode;
sample->source = render_ss->source[render_index];
sample->max_key = render_ss->max_key[render_index];
sample->param1 = render_ss->param1;
sample->param2 = render_ss->param2;
sample->param3 = (render_ss->mode == Y_OSCILLATOR_MODE_PADSYNTH ?
render_ss->param3 & ~1 : render_ss->param3);
sample->param4 = render_ss->param4;
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: ready to render %p as %d %d:%d=>%p@%d %d %d %d %d\n", sample, sample->mode, render_ss->waveform, render_index, sample->source, sample->max_key, sample->param1, sample->param2, sample->param3, sample->param4);
render_ss->ref_count--; /* now the sampleset can be freed */
pthread_mutex_unlock(&global.sampleset_mutex);
if (sample->mode == Y_OSCILLATOR_MODE_PADSYNTH) {
rc = padsynth_render(sample);
} else {
rc = sampleset_dummy_render(sample);
}
pthread_mutex_lock(&global.sampleset_mutex);
if (rc) {
sample->next = global.active_sample_list;
global.active_sample_list = sample;
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: sample %p render succeeded!\n", sample);
} else {
sample->next = global.free_sample_list;
global.free_sample_list = sample;
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function ERROR: sample %p render failed!\n", sample);
render_needed = 0; /* bail */
}
}
} while (render_needed && !global.worker_thread_done);
padsynth_free_temp();
pthread_mutex_unlock(&global.sampleset_mutex);
YDB_MESSAGE(YDB_SAMPLE, " sampleset_worker_function: all done for now.\n");
} /* while (!done) */
return NULL;
}
int
ntpdmain(
int argc,
char *argv[]
)
{
l_fp now;
struct recvbuf *rbuf;
const char * logfilename;
# ifdef HAVE_UMASK
mode_t uv;
# endif
# if defined(HAVE_GETUID) && !defined(MPE) /* MPE lacks the concept of root */
uid_t uid;
# endif
# if defined(HAVE_WORKING_FORK)
long wait_sync = 0;
int pipe_fds[2];
int rc;
int exit_code;
# ifdef _AIX
struct sigaction sa;
# endif
# if !defined(HAVE_SETSID) && !defined (HAVE_SETPGID) && defined(TIOCNOTTY)
int fid;
# endif
# endif /* HAVE_WORKING_FORK*/
# ifdef SCO5_CLOCK
int fd;
int zero;
# endif
# ifdef HAVE_UMASK
uv = umask(0);
if (uv)
umask(uv);
else
umask(022);
# endif
saved_argc = argc;
saved_argv = argv;
progname = argv[0];
initializing = TRUE; /* mark that we are initializing */
parse_cmdline_opts(&argc, &argv);
# ifdef DEBUG
debug = OPT_VALUE_SET_DEBUG_LEVEL;
# endif
if (HAVE_OPT(NOFORK) || HAVE_OPT(QUIT)
# ifdef DEBUG
|| debug
# endif
|| HAVE_OPT(SAVECONFIGQUIT))
nofork = TRUE;
init_logging(progname, NLOG_SYNCMASK, TRUE);
/* honor -l/--logfile option to log to a file */
if (HAVE_OPT(LOGFILE)) {
logfilename = OPT_ARG(LOGFILE);
syslogit = FALSE;
change_logfile(logfilename, FALSE);
} else {
logfilename = NULL;
if (nofork)
msyslog_term = TRUE;
if (HAVE_OPT(SAVECONFIGQUIT))
syslogit = FALSE;
}
msyslog(LOG_NOTICE, "%s: Starting\n", Version);
{
int i;
char buf[1024]; /* Secret knowledge of msyslog buf length */
char *cp = buf;
/* Note that every arg has an initial space character */
snprintf(cp, sizeof(buf), "Command line:");
cp += strlen(cp);
for (i = 0; i < saved_argc ; ++i) {
snprintf(cp, sizeof(buf) - (cp - buf),
" %s", saved_argv[i]);
cp += strlen(cp);
}
msyslog(LOG_NOTICE, "%s", buf);
}
/*
* Install trap handlers to log errors and assertion failures.
* Default handlers print to stderr which doesn't work if detached.
*/
isc_assertion_setcallback(assertion_failed);
isc_error_setfatal(library_fatal_error);
isc_error_setunexpected(library_unexpected_error);
/* MPE lacks the concept of root */
# if defined(HAVE_GETUID) && !defined(MPE)
uid = getuid();
if (uid && !HAVE_OPT( SAVECONFIGQUIT )) {
msyslog_term = TRUE;
msyslog(LOG_ERR,
"must be run as root, not uid %ld", (long)uid);
exit(1);
}
# endif
/*
* Enable the Multi-Media Timer for Windows?
*/
# ifdef SYS_WINNT
if (HAVE_OPT( MODIFYMMTIMER ))
set_mm_timer(MM_TIMER_HIRES);
# endif
#ifdef HAVE_DNSREGISTRATION
/*
* Enable mDNS registrations?
*/
if (HAVE_OPT( MDNS )) {
mdnsreg = TRUE;
}
#endif /* HAVE_DNSREGISTRATION */
if (HAVE_OPT( NOVIRTUALIPS ))
listen_to_virtual_ips = 0;
/*
* --interface, listen on specified interfaces
*/
if (HAVE_OPT( INTERFACE )) {
int ifacect = STACKCT_OPT( INTERFACE );
const char** ifaces = STACKLST_OPT( INTERFACE );
sockaddr_u addr;
while (ifacect-- > 0) {
add_nic_rule(
is_ip_address(*ifaces, AF_UNSPEC, &addr)
? MATCH_IFADDR
: MATCH_IFNAME,
*ifaces, -1, ACTION_LISTEN);
ifaces++;
}
}
if (HAVE_OPT( NICE ))
priority_done = 0;
# ifdef HAVE_SCHED_SETSCHEDULER
if (HAVE_OPT( PRIORITY )) {
config_priority = OPT_VALUE_PRIORITY;
config_priority_override = 1;
priority_done = 0;
}
# endif
# ifdef HAVE_WORKING_FORK
do { /* 'loop' once */
if (!HAVE_OPT( WAIT_SYNC ))
break;
wait_sync = OPT_VALUE_WAIT_SYNC;
if (wait_sync <= 0) {
wait_sync = 0;
break;
}
/* -w requires a fork() even with debug > 0 */
nofork = FALSE;
if (pipe(pipe_fds)) {
exit_code = (errno) ? errno : -1;
msyslog(LOG_ERR,
"Pipe creation failed for --wait-sync: %m");
exit(exit_code);
}
waitsync_fd_to_close = pipe_fds[1];
} while (0); /* 'loop' once */
# endif /* HAVE_WORKING_FORK */
init_lib();
# ifdef SYS_WINNT
/*
* Start interpolation thread, must occur before first
* get_systime()
*/
init_winnt_time();
# endif
/*
* Initialize random generator and public key pair
*/
get_systime(&now);
ntp_srandom((int)(now.l_i * now.l_uf));
/*
* Detach us from the terminal. May need an #ifndef GIZMO.
*/
if (!nofork) {
# ifdef HAVE_WORKING_FORK
rc = fork();
if (-1 == rc) {
exit_code = (errno) ? errno : -1;
msyslog(LOG_ERR, "fork: %m");
exit(exit_code);
}
if (rc > 0) {
/* parent */
exit_code = wait_child_sync_if(pipe_fds[0],
wait_sync);
exit(exit_code);
}
/*
* child/daemon
* close all open files excepting waitsync_fd_to_close.
* msyslog() unreliable until after init_logging().
*/
closelog();
if (syslog_file != NULL) {
fclose(syslog_file);
syslog_file = NULL;
syslogit = TRUE;
}
close_all_except(waitsync_fd_to_close);
INSIST(0 == open("/dev/null", 0) && 1 == dup2(0, 1) \
&& 2 == dup2(0, 2));
init_logging(progname, 0, TRUE);
/* we lost our logfile (if any) daemonizing */
setup_logfile(logfilename);
# ifdef SYS_DOMAINOS
{
uid_$t puid;
status_$t st;
proc2_$who_am_i(&puid);
proc2_$make_server(&puid, &st);
}
# endif /* SYS_DOMAINOS */
# ifdef HAVE_SETSID
if (setsid() == (pid_t)-1)
msyslog(LOG_ERR, "setsid(): %m");
# elif defined(HAVE_SETPGID)
if (setpgid(0, 0) == -1)
msyslog(LOG_ERR, "setpgid(): %m");
# else /* !HAVE_SETSID && !HAVE_SETPGID follows */
# ifdef TIOCNOTTY
fid = open("/dev/tty", 2);
if (fid >= 0) {
ioctl(fid, (u_long)TIOCNOTTY, NULL);
close(fid);
}
# endif /* TIOCNOTTY */
ntp_setpgrp(0, getpid());
# endif /* !HAVE_SETSID && !HAVE_SETPGID */
# ifdef _AIX
/* Don't get killed by low-on-memory signal. */
sa.sa_handler = catch_danger;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sigaction(SIGDANGER, &sa, NULL);
# endif /* _AIX */
# endif /* HAVE_WORKING_FORK */
}
# ifdef SCO5_CLOCK
/*
* SCO OpenServer's system clock offers much more precise timekeeping
* on the base CPU than the other CPUs (for multiprocessor systems),
* so we must lock to the base CPU.
*/
fd = open("/dev/at1", O_RDONLY);
if (fd >= 0) {
zero = 0;
if (ioctl(fd, ACPU_LOCK, &zero) < 0)
msyslog(LOG_ERR, "cannot lock to base CPU: %m");
close(fd);
}
# endif
# if defined(HAVE_MLOCKALL)
# ifdef HAVE_SETRLIMIT
ntp_rlimit(RLIMIT_STACK, DFLT_RLIMIT_STACK * 4096, 4096, "4k");
# ifdef RLIMIT_MEMLOCK
/*
* The default RLIMIT_MEMLOCK is very low on Linux systems.
* Unless we increase this limit malloc calls are likely to
* fail if we drop root privilege. To be useful the value
* has to be larger than the largest ntpd resident set size.
*/
ntp_rlimit(RLIMIT_MEMLOCK, DFLT_RLIMIT_MEMLOCK * 1024 * 1024, 1024 * 1024, "MB");
# endif /* RLIMIT_MEMLOCK */
# endif /* HAVE_SETRLIMIT */
/*
* lock the process into memory
*/
if (!HAVE_OPT(SAVECONFIGQUIT) &&
0 != mlockall(MCL_CURRENT|MCL_FUTURE))
msyslog(LOG_ERR, "mlockall(): %m");
# else /* !HAVE_MLOCKALL follows */
# ifdef HAVE_PLOCK
# ifdef PROCLOCK
# ifdef _AIX
/*
* set the stack limit for AIX for plock().
* see get_aix_stack() for more info.
*/
if (ulimit(SET_STACKLIM, (get_aix_stack() - 8 * 4096)) < 0)
msyslog(LOG_ERR,
"Cannot adjust stack limit for plock: %m");
# endif /* _AIX */
/*
* lock the process into memory
*/
if (!HAVE_OPT(SAVECONFIGQUIT) && 0 != plock(PROCLOCK))
msyslog(LOG_ERR, "plock(PROCLOCK): %m");
# else /* !PROCLOCK follows */
# ifdef TXTLOCK
/*
* Lock text into ram
*/
if (!HAVE_OPT(SAVECONFIGQUIT) && 0 != plock(TXTLOCK))
msyslog(LOG_ERR, "plock(TXTLOCK) error: %m");
# else /* !TXTLOCK follows */
msyslog(LOG_ERR, "plock() - don't know what to lock!");
# endif /* !TXTLOCK */
# endif /* !PROCLOCK */
# endif /* HAVE_PLOCK */
# endif /* !HAVE_MLOCKALL */
/*
* Set up signals we pay attention to locally.
*/
# ifdef SIGDIE1
signal_no_reset(SIGDIE1, finish);
signal_no_reset(SIGDIE2, finish);
signal_no_reset(SIGDIE3, finish);
signal_no_reset(SIGDIE4, finish);
# endif
# ifdef SIGBUS
signal_no_reset(SIGBUS, finish);
# endif
# if !defined(SYS_WINNT) && !defined(VMS)
# ifdef DEBUG
(void) signal_no_reset(MOREDEBUGSIG, moredebug);
(void) signal_no_reset(LESSDEBUGSIG, lessdebug);
# else
(void) signal_no_reset(MOREDEBUGSIG, no_debug);
(void) signal_no_reset(LESSDEBUGSIG, no_debug);
# endif /* DEBUG */
# endif /* !SYS_WINNT && !VMS */
/*
* Set up signals we should never pay attention to.
*/
# ifdef SIGPIPE
signal_no_reset(SIGPIPE, SIG_IGN);
# endif
/*
* Call the init_ routines to initialize the data structures.
*
* Exactly what command-line options are we expecting here?
*/
INIT_SSL();
init_auth();
init_util();
init_restrict();
init_mon();
init_timer();
init_request();
init_control();
init_peer();
# ifdef REFCLOCK
init_refclock();
# endif
set_process_priority();
init_proto(); /* Call at high priority */
init_io();
init_loopfilter();
mon_start(MON_ON); /* monitor on by default now */
/* turn off in config if unwanted */
/*
* Get the configuration. This is done in a separate module
* since this will definitely be different for the gizmo board.
*/
getconfig(argc, argv);
loop_config(LOOP_DRIFTINIT, 0);
report_event(EVNT_SYSRESTART, NULL, NULL);
initializing = FALSE;
# ifdef HAVE_DROPROOT
if (droproot) {
/* Drop super-user privileges and chroot now if the OS supports this */
# ifdef HAVE_LINUX_CAPABILITIES
/* set flag: keep privileges accross setuid() call (we only really need cap_sys_time): */
if (prctl( PR_SET_KEEPCAPS, 1L, 0L, 0L, 0L ) == -1) {
msyslog( LOG_ERR, "prctl( PR_SET_KEEPCAPS, 1L ) failed: %m" );
exit(-1);
}
# else
/* we need a user to switch to */
if (user == NULL) {
msyslog(LOG_ERR, "Need user name to drop root privileges (see -u flag!)" );
exit(-1);
}
# endif /* HAVE_LINUX_CAPABILITIES */
if (user != NULL) {
if (isdigit((unsigned char)*user)) {
sw_uid = (uid_t)strtoul(user, &endp, 0);
if (*endp != '\0')
goto getuser;
if ((pw = getpwuid(sw_uid)) != NULL) {
free(user);
user = estrdup(pw->pw_name);
sw_gid = pw->pw_gid;
} else {
errno = 0;
msyslog(LOG_ERR, "Cannot find user ID %s", user);
exit (-1);
}
} else {
getuser:
errno = 0;
if ((pw = getpwnam(user)) != NULL) {
sw_uid = pw->pw_uid;
sw_gid = pw->pw_gid;
} else {
if (errno)
msyslog(LOG_ERR, "getpwnam(%s) failed: %m", user);
else
msyslog(LOG_ERR, "Cannot find user `%s'", user);
exit (-1);
}
}
}
if (group != NULL) {
if (isdigit((unsigned char)*group)) {
sw_gid = (gid_t)strtoul(group, &endp, 0);
if (*endp != '\0')
goto getgroup;
} else {
getgroup:
if ((gr = getgrnam(group)) != NULL) {
sw_gid = gr->gr_gid;
} else {
errno = 0;
msyslog(LOG_ERR, "Cannot find group `%s'", group);
exit (-1);
}
}
}
if (chrootdir ) {
/* make sure cwd is inside the jail: */
if (chdir(chrootdir)) {
msyslog(LOG_ERR, "Cannot chdir() to `%s': %m", chrootdir);
exit (-1);
}
if (chroot(chrootdir)) {
msyslog(LOG_ERR, "Cannot chroot() to `%s': %m", chrootdir);
exit (-1);
}
if (chdir("/")) {
msyslog(LOG_ERR, "Cannot chdir() to`root after chroot(): %m");
exit (-1);
}
}
if (user && initgroups(user, sw_gid)) {
msyslog(LOG_ERR, "Cannot initgroups() to user `%s': %m", user);
exit (-1);
}
if (group && setgid(sw_gid)) {
msyslog(LOG_ERR, "Cannot setgid() to group `%s': %m", group);
exit (-1);
}
if (group && setegid(sw_gid)) {
msyslog(LOG_ERR, "Cannot setegid() to group `%s': %m", group);
exit (-1);
}
if (user && setuid(sw_uid)) {
msyslog(LOG_ERR, "Cannot setuid() to user `%s': %m", user);
exit (-1);
}
if (user && seteuid(sw_uid)) {
msyslog(LOG_ERR, "Cannot seteuid() to user `%s': %m", user);
exit (-1);
}
# ifndef HAVE_LINUX_CAPABILITIES
/*
* for now assume that the privilege to bind to privileged ports
* is associated with running with uid 0 - should be refined on
* ports that allow binding to NTP_PORT with uid != 0
*/
disable_dynamic_updates |= (sw_uid != 0); /* also notifies routing message listener */
# endif
if (disable_dynamic_updates && interface_interval) {
interface_interval = 0;
msyslog(LOG_INFO, "running as non-root disables dynamic interface tracking");
}
# ifdef HAVE_LINUX_CAPABILITIES
{
/*
* We may be running under non-root uid now, but we still hold full root privileges!
* We drop all of them, except for the crucial one or two: cap_sys_time and
* cap_net_bind_service if doing dynamic interface tracking.
*/
cap_t caps;
char *captext;
captext = (0 != interface_interval)
? "cap_sys_time,cap_net_bind_service=pe"
: "cap_sys_time=pe";
caps = cap_from_text(captext);
if (!caps) {
msyslog(LOG_ERR,
"cap_from_text(%s) failed: %m",
captext);
exit(-1);
}
if (-1 == cap_set_proc(caps)) {
msyslog(LOG_ERR,
"cap_set_proc() failed to drop root privs: %m");
exit(-1);
}
cap_free(caps);
}
# endif /* HAVE_LINUX_CAPABILITIES */
root_dropped = TRUE;
fork_deferred_worker();
} /* if (droproot) */
# endif /* HAVE_DROPROOT */
/*
* Use select() on all on all input fd's for unlimited
* time. select() will terminate on SIGALARM or on the
* reception of input. Using select() means we can't do
* robust signal handling and we get a potential race
* between checking for alarms and doing the select().
* Mostly harmless, I think.
*/
/*
* On VMS, I suspect that select() can't be interrupted
* by a "signal" either, so I take the easy way out and
* have select() time out after one second.
* System clock updates really aren't time-critical,
* and - lacking a hardware reference clock - I have
* yet to learn about anything else that is.
*/
# ifdef HAVE_IO_COMPLETION_PORT
for (;;) {
GetReceivedBuffers();
# else /* normal I/O */
BLOCK_IO_AND_ALARM();
was_alarmed = FALSE;
for (;;) {
# ifndef HAVE_SIGNALED_IO
fd_set rdfdes;
int nfound;
# endif
if (alarm_flag) { /* alarmed? */
was_alarmed = TRUE;
alarm_flag = FALSE;
}
if (!was_alarmed && !has_full_recv_buffer()) {
/*
* Nothing to do. Wait for something.
*/
# ifndef HAVE_SIGNALED_IO
rdfdes = activefds;
# if !defined(VMS) && !defined(SYS_VXWORKS)
nfound = select(maxactivefd + 1, &rdfdes, NULL,
NULL, NULL);
# else /* VMS, VxWorks */
/* make select() wake up after one second */
{
struct timeval t1;
t1.tv_sec = 1;
t1.tv_usec = 0;
nfound = select(maxactivefd + 1,
&rdfdes, NULL, NULL,
&t1);
}
# endif /* VMS, VxWorks */
if (nfound > 0) {
l_fp ts;
get_systime(&ts);
input_handler(&ts);
} else if (nfound == -1 && errno != EINTR) {
msyslog(LOG_ERR, "select() error: %m");
}
# ifdef DEBUG
else if (debug > 4) {
msyslog(LOG_DEBUG, "select(): nfound=%d, error: %m", nfound);
} else {
DPRINTF(1, ("select() returned %d: %m\n", nfound));
}
# endif /* DEBUG */
# else /* HAVE_SIGNALED_IO */
wait_for_signal();
# endif /* HAVE_SIGNALED_IO */
if (alarm_flag) { /* alarmed? */
was_alarmed = TRUE;
alarm_flag = FALSE;
}
}
if (was_alarmed) {
UNBLOCK_IO_AND_ALARM();
/*
* Out here, signals are unblocked. Call timer routine
* to process expiry.
*/
timer();
was_alarmed = FALSE;
BLOCK_IO_AND_ALARM();
}
# endif /* !HAVE_IO_COMPLETION_PORT */
# ifdef DEBUG_TIMING
{
l_fp pts;
l_fp tsa, tsb;
int bufcount = 0;
get_systime(&pts);
tsa = pts;
# endif
rbuf = get_full_recv_buffer();
while (rbuf != NULL) {
if (alarm_flag) {
was_alarmed = TRUE;
alarm_flag = FALSE;
}
UNBLOCK_IO_AND_ALARM();
if (was_alarmed) {
/* avoid timer starvation during lengthy I/O handling */
timer();
was_alarmed = FALSE;
}
/*
* Call the data procedure to handle each received
* packet.
*/
if (rbuf->receiver != NULL) {
# ifdef DEBUG_TIMING
l_fp dts = pts;
L_SUB(&dts, &rbuf->recv_time);
DPRINTF(2, ("processing timestamp delta %s (with prec. fuzz)\n", lfptoa(&dts, 9)));
collect_timing(rbuf, "buffer processing delay", 1, &dts);
bufcount++;
# endif
(*rbuf->receiver)(rbuf);
} else {
msyslog(LOG_ERR, "fatal: receive buffer callback NULL");
abort();
}
BLOCK_IO_AND_ALARM();
freerecvbuf(rbuf);
rbuf = get_full_recv_buffer();
}
# ifdef DEBUG_TIMING
get_systime(&tsb);
L_SUB(&tsb, &tsa);
if (bufcount) {
collect_timing(NULL, "processing", bufcount, &tsb);
DPRINTF(2, ("processing time for %d buffers %s\n", bufcount, lfptoa(&tsb, 9)));
}
}
# endif
/*
* Go around again
*/
# ifdef HAVE_DNSREGISTRATION
if (mdnsreg && (current_time - mdnsreg ) > 60 && mdnstries && sys_leap != LEAP_NOTINSYNC) {
mdnsreg = current_time;
msyslog(LOG_INFO, "Attempting to register mDNS");
if ( DNSServiceRegister (&mdns, 0, 0, NULL, "_ntp._udp", NULL, NULL,
htons(NTP_PORT), 0, NULL, NULL, NULL) != kDNSServiceErr_NoError ) {
if (!--mdnstries) {
msyslog(LOG_ERR, "Unable to register mDNS, giving up.");
} else {
msyslog(LOG_INFO, "Unable to register mDNS, will try later.");
}
} else {
msyslog(LOG_INFO, "mDNS service registered.");
mdnsreg = FALSE;
}
}
# endif /* HAVE_DNSREGISTRATION */
}
UNBLOCK_IO_AND_ALARM();
return 1;
}
#endif /* !SIM */
#if !defined(SIM) && defined(SIGDIE1)
/*
* finish - exit gracefully
*/
static RETSIGTYPE
finish(
int sig
)
{
const char *sig_desc;
sig_desc = NULL;
#ifdef HAVE_STRSIGNAL
sig_desc = strsignal(sig);
#endif
if (sig_desc == NULL)
sig_desc = "";
msyslog(LOG_NOTICE, "%s exiting on signal %d (%s)", progname,
sig, sig_desc);
# ifdef HAVE_DNSREGISTRATION
if (mdns != NULL)
DNSServiceRefDeallocate(mdns);
# endif
exit(0);
}
#endif /* !SIM && SIGDIE1 */
#ifndef SIM
/*
* wait_child_sync_if - implements parent side of -w/--wait-sync
*/
# ifdef HAVE_WORKING_FORK
static int
wait_child_sync_if(
int pipe_read_fd,
long wait_sync
)
{
int rc;
int exit_code;
time_t wait_end_time;
time_t cur_time;
time_t wait_rem;
fd_set readset;
struct timeval wtimeout;
if (0 == wait_sync)
return 0;
/* waitsync_fd_to_close used solely by child */
close(waitsync_fd_to_close);
wait_end_time = time(NULL) + wait_sync;
do {
cur_time = time(NULL);
wait_rem = (wait_end_time > cur_time)
? (wait_end_time - cur_time)
: 0;
wtimeout.tv_sec = wait_rem;
wtimeout.tv_usec = 0;
FD_ZERO(&readset);
FD_SET(pipe_read_fd, &readset);
rc = select(pipe_read_fd + 1, &readset, NULL, NULL,
&wtimeout);
if (-1 == rc) {
if (EINTR == errno)
continue;
exit_code = (errno) ? errno : -1;
msyslog(LOG_ERR,
"--wait-sync select failed: %m");
return exit_code;
}
if (0 == rc) {
/*
* select() indicated a timeout, but in case
* its timeouts are affected by a step of the
* system clock, select() again with a zero
* timeout to confirm.
*/
FD_ZERO(&readset);
FD_SET(pipe_read_fd, &readset);
wtimeout.tv_sec = 0;
wtimeout.tv_usec = 0;
rc = select(pipe_read_fd + 1, &readset, NULL,
NULL, &wtimeout);
if (0 == rc) /* select() timeout */
break;
else /* readable */
return 0;
} else /* readable */
return 0;
} while (wait_rem > 0);
fprintf(stderr, "%s: -w/--wait-sync %ld timed out.\n",
progname, wait_sync);
return ETIMEDOUT;
}
int main(int argc, char *argv[])
{
int i,n_children,k,pid[MAX];
// Print all argument (debug purpose)
printf("Arguments:\n");
for (i = 0; i < argc; i++)
printf("[%d]:%s\n", i,argv[i]);
//Check number of arguments
if(argc < 2){
printf("Illegal number of parameters\n");
exit(1);
}
//Check argument is digit
if(!isdigit(argv[1][0])){
printf("%d parameter is not digit\n",argv[1][0]);
exit(1);
}
n_children = atoi(argv[1]);
k = (int)n_children/2;
printf("n_children = %d\n", n_children);
printf("k = %d\n", k);
printf("----- start program -----\n");
for (i = 0; i < n_children; ++i)
{
//printf("about to create child [%d]\n", i);
pid[i] = fork();
if (pid[i] == 0) // child
{
printf("child:pid - [%d][%d]\n",i,getpid());
if (i<k){
printf("\tchild[%d] about to start wait\n",getpid());
wait_for_signal();
}
else {
printf("\tchild[%d] wait 5 sec\n",getpid());
sleep_and_terminate();
}
}
else if (pid[i] > 0) {
//father
}
else //Errors
{
perror("Impossibile fare la fork():");
exit(2);
}
}
for (i = 0; i < k; ++i)
{
kill(pid[i],SIGUSR1);
}
for (i = 0; i < n_children; ++i)
{
wait_child();
}
return 0;
}
static void handle_request(int fd) {
ALOGV("handle_request(%d)\n", fd);
debugger_request_t request;
memset(&request, 0, sizeof(request));
int status = read_request(fd, &request);
if (!status) {
ALOGV("BOOM: pid=%d uid=%d gid=%d tid=%d\n",
request.pid, request.uid, request.gid, request.tid);
// At this point, the thread that made the request is blocked in
// a read() call. If the thread has crashed, then this gives us
// time to PTRACE_ATTACH to it before it has a chance to really fault.
//
// The PTRACE_ATTACH sends a SIGSTOP to the target process, but it
// won't necessarily have stopped by the time ptrace() returns. (We
// currently assume it does.) We write to the file descriptor to
// ensure that it can run as soon as we call PTRACE_CONT below.
// See details in bionic/libc/linker/debugger.c, in function
// debugger_signal_handler().
if (ptrace(PTRACE_ATTACH, request.tid, 0, 0)) {
ALOGE("ptrace attach failed: %s\n", strerror(errno));
} else {
bool detach_failed = false;
bool attach_gdb = should_attach_gdb(&request);
if (TEMP_FAILURE_RETRY(write(fd, "\0", 1)) != 1) {
ALOGE("failed responding to client: %s\n", strerror(errno));
} else {
char* tombstone_path = NULL;
if (request.action == DEBUGGER_ACTION_CRASH) {
close(fd);
fd = -1;
}
int total_sleep_time_usec = 0;
for (;;) {
int signal = wait_for_signal(request.tid, &total_sleep_time_usec);
if (signal < 0) {
break;
}
switch (signal) {
case SIGSTOP:
if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
ALOGV("stopped -- dumping to tombstone\n");
tombstone_path = engrave_tombstone(request.pid, request.tid,
signal, request.original_si_code,
request.abort_msg_address, true,
&detach_failed, &total_sleep_time_usec);
} else if (request.action == DEBUGGER_ACTION_DUMP_BACKTRACE) {
ALOGV("stopped -- dumping to fd\n");
dump_backtrace(fd, -1, request.pid, request.tid, &detach_failed,
&total_sleep_time_usec);
} else {
ALOGV("stopped -- continuing\n");
status = ptrace(PTRACE_CONT, request.tid, 0, 0);
if (status) {
ALOGE("ptrace continue failed: %s\n", strerror(errno));
}
continue; // loop again
}
break;
case SIGABRT:
case SIGBUS:
case SIGFPE:
case SIGILL:
case SIGPIPE:
case SIGSEGV:
#ifdef SIGSTKFLT
case SIGSTKFLT:
#endif
case SIGTRAP:
ALOGV("stopped -- fatal signal\n");
// Send a SIGSTOP to the process to make all of
// the non-signaled threads stop moving. Without
// this we get a lot of "ptrace detach failed:
// No such process".
kill(request.pid, SIGSTOP);
// don't dump sibling threads when attaching to GDB because it
// makes the process less reliable, apparently...
tombstone_path = engrave_tombstone(request.pid, request.tid,
signal, request.original_si_code,
request.abort_msg_address, !attach_gdb,
&detach_failed, &total_sleep_time_usec);
break;
default:
ALOGE("process stopped due to unexpected signal %d\n", signal);
break;
}
break;
}
if (request.action == DEBUGGER_ACTION_DUMP_TOMBSTONE) {
if (tombstone_path) {
write(fd, tombstone_path, strlen(tombstone_path));
}
close(fd);
fd = -1;
}
free(tombstone_path);
}
ALOGV("detaching\n");
if (attach_gdb) {
// stop the process so we can debug
kill(request.pid, SIGSTOP);
// detach so we can attach gdbserver
if (ptrace(PTRACE_DETACH, request.tid, 0, 0)) {
ALOGE("ptrace detach from %d failed: %s\n", request.tid, strerror(errno));
detach_failed = true;
}
// if debug.db.uid is set, its value indicates if we should wait
// for user action for the crashing process.
// in this case, we log a message and turn the debug LED on
// waiting for a gdb connection (for instance)
wait_for_user_action(request);
} else {
// just detach
if (ptrace(PTRACE_DETACH, request.tid, 0, 0)) {
ALOGE("ptrace detach from %d failed: %s\n", request.tid, strerror(errno));
detach_failed = true;
}
}
// resume stopped process (so it can crash in peace).
kill(request.pid, SIGCONT);
// If we didn't successfully detach, we're still the parent, and the
// actual parent won't receive a death notification via wait(2). At this point
// there's not much we can do about that.
if (detach_failed) {
ALOGE("debuggerd committing suicide to free the zombie!\n");
kill(getpid(), SIGKILL);
}
}
}
if (fd >= 0) {
close(fd);
}
}
main () {
// get a file descriptor that identifies the server
int clientFd = establish_client_file_descriptor();
// set up some local variables
enum Signal signal;
char affirm = 'r'; // r = response.
int sentinel = 1;
int length;
int confirm;
char buffer[256];
// show the splash page to new users
display_title();
// the run loop: this will continue until the server sends HANG_UP
while(sentinel) {
// wait for instructions from the server
signal = (enum Signal)wait_for_signal(clientFd);
switch(signal) {
// the server says: hang up!
case HANG_UP :
// we write to let server know we got the message
write(clientFd, &affirm, sizeof(char));
sentinel = 0; // takes us out of the loop
break;
// the server says: output the next string
case DISPLAY_OUTPUT :
// get the length of incoming input and set up a string
read(clientFd, &length, sizeof(int));
char * message = malloc(length);
read(clientFd, message, length);
printf(" %s\n", message); // display the message
// we write to let server know we got the message
write(clientFd, &affirm, sizeof(char));
free(message);
break;
// the server says: send me input from the user
case GET_SYMBOL :
display_choices(); // shwo the menu
selection = get_integer_in_range(1,3);
selection--; // the symbol array is 0 indexed
write(clientFd, &selection, sizeof(int));
break;
case GET_STRING :
// get a string from the user and malloc enough memory to keep it
get_string(buffer, 256, stdin);
message = malloc(strlen(buffer));
strcpy(message, buffer);
// first send the length, then the message
length = strlen(message) + 1;
write(clientFd, &length, sizeof(int));
write(clientFd, message, length);
free(message);
break;
case CONFIRM :
// get confirmation of something from the user
confirm = user_confirms();
write(clientFd, &confirm, sizeof(int));
break;
default :
break;
}
}
// we are finished now
return 0;
}