int repeater_run(struct repeater_config *config)
{
int status;
struct repeater repeater;
status = init(&repeater, config);
if (status == 0) {
/* Start tasks and wait for a key press to shut down */
status = start_tasks(&repeater);
if (status < 0) {
fprintf(stderr, "Failed to start tasks.\n");
} else {
printf("Repeater running. Press enter to stop.\n");
getchar();
}
/* Stop tasks */
stop_tasks(&repeater);
deinit(&repeater);
}
return status;
}
int repeater_run(struct repeater_config *config)
{
int status;
char key;
struct repeater repeater;
status = term_init();
if (status != 0) {
return 1;
}
status = init(&repeater, config);
if (status == 0) {
/* Start tasks and wait for a key press to shut down */
status = start_tasks(&repeater);
if (status < 0) {
fprintf(stderr, "Failed to start tasks.\r\n");
} else {
repeater_help();
do {
key = get_key();
repeater_handle_key(&repeater, key);
} while (key != KEY_QUIT);
}
/* Stop tasks */
stop_tasks(&repeater);
deinit(&repeater);
}
return term_deinit();
}
int main()
{
int r = 0;
int g = 100;
int b = 0;
int temp = 1;
enable_interrupts();
timer_init();
// RGB_LED(0,0,0);
delay_ms(2000);
RGB_LED(100, 0, 0);
uart0_write_string("blah");
uart0_write_string("blah\r\n");
start_tasks();
for (;;) {
delay_ms(1000);
RGB_LED(r, g, b);
temp = r;
r = b;
b = g;
g = temp;
uart0_write_string
("123456789012345678901234567890123456789012345678901234567890\n\r");
uart0_write_string("1234567890\r\n");
uart0_write_string("blah\r\n");
}
}
int main(int argc, char** argv)
{
I_LOG("Are you Ready? start my butler!!!!\n");
start_tasks();
while(1)
{
sleep(60);
}
return 0;
}
/*
* StartOS API call.
* This service is called to start the operating system in a specific mode.
*/
void os_StartOS(AppModeType appmode)
{
os_ipl save_ipl;
OS_SAVE_IPL(save_ipl); /* Save IPL on entry so can restore on exit, side-effect: assigns back to save_ipl */
ENTER_KERNEL_DIRECT(); /* Set IPL to kernel level while setting up OS variables etc. */
OS_API_TRACE_START_OS();
INIT_STACKCHECK_TO_OFF(); /* Make sure stack checking is turned off so that when/if dispatch() is called there are no stack errors
* Note that this requires the kernel stack (i.e. main()'s stack) is big enough to support this call to
* StartOS plus a call to dispatch() and the entry into the subsequent task
*/
#ifndef NDEBUG
assert_initialized(); /* assert the C runtime startup has setup all vars to startup state */
#endif
/* Saving a jmp_buf (os_startosenv) so that the entire OS can be terminated via a longjmp call inside a ShutdownOS call */
/* $Req: artf1216 artf1219 $ */
if (SETJMP(os_startosenv) == 0) {
/* This half of the 'if' is the half that is the run-on continuation */
/* $Req: artf1214 artf1094 $ */
os_appmode = appmode; /* Store application mode in which the OS was started */
/* setup the tasks and alarms that are to be autostarted for the given app mode */
start_tasks(appmode);
/* Initialize all counters in the system to start running */
start_counters();
/* Autostart alarms */
if(appmode->start_alarms_singleton) {
appmode->start_alarms_singleton(appmode);
}
if(appmode->start_alarms_multi) {
appmode->start_alarms_multi(appmode);
}
/* Autostarted schedule tables are autostarted implicitly by the underlying alarms being autostarted */
#ifdef STACK_CHECKING
os_curtos = OS_KS_TOP;
#endif
/* Call startup hook if required to do so */
/* $Req: artf1215 $ */
if (os_flags.startuphook) { /* check if need to call the startuphook handler */
/* hook needs calling */
ENABLE_STACKCHECK(); /* enable stack checking */
/* @todo check that we really need to raise IPL to lock out all interrupts (both CAT1 and CAT2) within the hook */
OS_SET_IPL_MAX(); /* raise IPL to lock out all interrupts (both CAT1 and CAT2) within the hook */
MARK_OUT_KERNEL(); /* drop out of the kernel, keeping IPL at max level */
/* $Req: artf1117 $ */
StartupHook(); /* call the hook routine with IPL set to kernel level and stack checking on */
MARK_IN_KERNEL(); /* go back into the kernel */
OS_SET_IPL_KERNEL(); /* set IPL back to kernel level */
DISABLE_STACKCHECK(); /* disable stack checking */
}
/* Start the scheduling activity */
if (TASK_SWITCH_PENDING(os_curpri)) {
os_ks_dispatch();
}
ENABLE_STACKCHECK();
LEAVE_KERNEL();
/* now running as the body of the os_idle task, with IPL at level 0 and priority of IDLEPRI */
/* $Req: artf1116 $ */
/* Note that interrupts will be enabled prior to here because the os_ks_dispatch() call above
* might switch to running autostarted tasks, which will lower interrupts to level 0
*/
for ( ; ; ) {
os_idle(); /* call the os_idle task entry function */
}
NOT_REACHED();
}
else {
/* This half of the 'if' is the half that is RETURNING from a longjmp */
/* We have come back from a ShutdownOS() call */
}
/* Reached here because ShutdownOS(E_OK) was called.
*
* $Req: artf1219 $
*/
assert(KERNEL_LOCKED());
assert(STACKCHECK_OFF()); /* Stack checking turned off prior to longjmp in shutdown() */
/* Would normally stop the counters, reinitialise the kernel variables, etc. in case StartOS() were to be called again,
* but OS424 (artf1375) requires that StartOS() doesn't return, but instead goes into an infinite loop.
* Similarly, OS425 (artf1376) requires that interrupts are disabled before entering the loop.
*
* If StartOS() is ever required to return to caller, see revision 568 of this file (startos.c) for the
* original code that did this.
*
* $Req: artf1375 $
* $Req: artf1376 $
*/
OS_SET_IPL_MAX();
for(;;)
;
}
/*
* Overall executable distribution using fast.
*/
int
distribute_executable(void)
{
int ret = 1; /* failure */
#if HAVE_FAST_DIST
const char *fast_command = FAST_DIST_PATH; /* from configure */
int i;
int numtasks_save;
int local_numtasks;
tasks_t *tasks_save;
cl_args_t cl_args_save;
config_spec_t cs, root_cs;
growstr_t *g, *root_g;
int temp_fd;
char *file_template;
int port_num;
FILE *fp;
const char *exec_to_dist;
int *usenodes;
exec_to_dist = config_get_unique_executable();
if (!exec_to_dist)
return ret;
if (!stat_exe(fast_command, 0))
return ret;
/* analyze nodes */
usenodes = Malloc(numnodes * sizeof(*usenodes));
memset(usenodes, 0, numnodes * sizeof(*usenodes));
local_numtasks = 0;
for (i=0; i<numtasks; i++) {
if (!usenodes[tasks[i].node]) {
usenodes[tasks[i].node] = 1;
++local_numtasks;
}
}
/* don't bother if there is only one node */
if (local_numtasks <= 1) {
free(usenodes);
return ret;
}
/* create temporary node file */
file_template = strsave("/tmp/mpiexec-fast-XXXXXX");
temp_fd = mkstemp(file_template);
if (!temp_fd)
goto out;
debug(1, "%s: temp node list file is %d",__func__, temp_fd);
fp = fdopen(temp_fd, "w");
if (!fp)
goto out;
/* add nodes to the node file */
for (i=0; i<numnodes; i++) {
if (!usenodes[i])
continue;
if (fprintf(fp, "%s\n", nodes[i].name) <= 0) {
fclose(fp);
goto out;
}
}
if (fclose(fp) != 0)
goto out;
/* pick a random port number between 6 and 8 thousand */
srand(time(NULL));
port_num = rand() % 2000 + 6000;
/*
* Back up the tasks structure and number of tasks as well as command
* line args.
*/
tasks_save = tasks;
numtasks_save = numtasks;
memcpy(&cl_args_save, cl_args, sizeof(*cl_args));
/* set the fast_dist executable name */
cs.exe = fast_command;
root_cs.exe = cs.exe;
/* set up the args to pass to the non-root nodes */
g = growstr_init();
growstr_printf(g, "-p %d", port_num);
cs.args = g->s;
debug(1, "%s: arg string for non root: %s", __func__, g->s);
/* and to the root node */
root_g = growstr_init();
growstr_printf(root_g, "-p %d -r %s -e %s -n %s",
port_num, nodes[tasks[0].node].name, exec_to_dist, file_template);
root_cs.args = root_g->s;
debug(1, "%s: arg string for root: %s", __func__, root_g->s);
/* build new tasks */
cl_args->which_stdin = STDIN_NONE;
cl_args->comm = COMM_NONE;
tasks = Malloc(local_numtasks * sizeof(*tasks));
numtasks = local_numtasks;
for (i=0; i < numtasks; i++) {
tasks[i].num_copies = 1;
tasks[i].done = DONE_NOT_STARTED;
*tasks[i].status = -1;
/*
* Slight race condition in that the root wants to actively connect
* to some other nodes, but it will retry a bit. Put root last to
* hope that there is a bit of delay in startup.
*/
if (i == numtasks - 1) {
tasks[i].node = tasks_save[0].node;
tasks[i].conf = &root_cs;
} else {
tasks[i].node = tasks_save[i+1].node;
tasks[i].conf = &cs;
}
debug(1, "%s: task %d on %d", __func__, i, tasks[i].node);
}
/* spawn tasks */
start_tasks(0);
debug(1, "%s: tasks started", __func__);
/* wait for them to exit */
wait_tasks();
/* make sure everyone finished successfully */
ret = 0;
for (i=0; i<numtasks; i++) {
if (tasks[i].done == DONE_NO_EXIT_STATUS)
continue;
if (*tasks[i].status != 0) {
ret = 1;
break;
}
}
debug(1, "%s: done, ret = %d", __func__, ret);
/* put back original tasks structures */
free(tasks);
tasks = tasks_save;
numtasks = numtasks_save;
memcpy(cl_args, &cl_args_save, sizeof(*cl_args));
growstr_free(g);
growstr_free(root_g);
/*
* Update executable in old config structure to point to new /tmp exec,
* using the same algorithm as fast_dist. It is not deleted upon
* completion but relies on $TMPDIR being deleted when PBS cleans up the
* job or normal /tmp cleaning.
*/
if (ret == 0) {
const char *cp, *base;
growstr_t *h;
h = growstr_init();
cp = getenv("TMPDIR");
if (!cp || !*cp)
cp = "/tmp";
growstr_append(h, cp);
for (cp=base=exec_to_dist; *cp; cp++)
if (*cp == '/')
base = cp+1;
growstr_append(h, "/");
growstr_append(h, base);
config_set_unique_executable(strsave(h->s));
growstr_free(h);
}
out:
unlink(file_template);
free(file_template);
free(usenodes);
#endif /* HAVE_FAST_DIST */
return ret;
}