mrb_state*
mrb_open()
{
mrb_state *mrb = mrb_open_allocf(allocf);
return mrb;
}
mrb_state*
mrb_open(void)
{
mrb_state *mrb = mrb_open_allocf(mrb_default_allocf, NULL);
return mrb;
}
mrb_state*
mrb_open(void)
{
mrb_state *mrb = mrb_open_allocf(allocf, NULL);
return mrb;
}
static mrb_value
mrb_thread_init(mrb_state* mrb, mrb_value self) {
mrb_value proc = mrb_nil_value();
mrb_int argc;
mrb_value* argv;
mrb_get_args(mrb, "&*", &proc, &argv, &argc);
if (!mrb_nil_p(proc) && MRB_PROC_CFUNC_P(mrb_proc_ptr(proc))) {
mrb_raise(mrb, E_RUNTIME_ERROR, "forking C defined block");
}
if (!mrb_nil_p(proc)) {
int i, l;
mrb_thread_context* context = (mrb_thread_context*) malloc(sizeof(mrb_thread_context));
context->mrb_caller = mrb;
context->mrb = mrb_open_allocf(mrb->allocf, mrb->allocf_ud);
migrate_all_symbols(mrb, context->mrb);
context->proc = mrb_proc_new(mrb, mrb_proc_ptr(proc)->body.irep);
context->proc->target_class = context->mrb->object_class;
context->argc = argc;
context->argv = calloc(sizeof (mrb_value), context->argc);
context->result = mrb_nil_value();
context->alive = TRUE;
for (i = 0; i < context->argc; i++) {
context->argv[i] = migrate_simple_value(mrb, argv[i], context->mrb);
}
{
mrb_value gv = mrb_funcall(mrb, self, "global_variables", 0, NULL);
l = RARRAY_LEN(gv);
for (i = 0; i < l; i++) {
mrb_int len;
int ai = mrb_gc_arena_save(mrb);
mrb_value k = mrb_ary_entry(gv, i);
mrb_value o = mrb_gv_get(mrb, mrb_symbol(k));
if (is_safe_migratable_simple_value(mrb, o, context->mrb)) {
const char *p = mrb_sym2name_len(mrb, mrb_symbol(k), &len);
mrb_gv_set(context->mrb,
mrb_intern_static(context->mrb, p, len),
migrate_simple_value(mrb, o, context->mrb));
}
mrb_gc_arena_restore(mrb, ai);
}
}
mrb_iv_set(mrb, self, mrb_intern_lit(mrb, "context"), mrb_obj_value(
Data_Wrap_Struct(mrb, mrb->object_class,
&mrb_thread_context_type, (void*) context)));
pthread_create(&context->thread, NULL, &mrb_thread_func, (void*) context);
}
return self;
}
int init_plugin_from_file(Plugin *plugin, const char *path, const char *plugin_name)
{
int fds[2], flags, buffer_size, n;
printf("Loading plugin %s...\n", path);
plugin->mrb = mrb_open_allocf(profiler_allocf, (void *)path);
setup_api(plugin->mrb);
execute_file(plugin->mrb, path);
execute_file(plugin->mrb, config_path);
C_CHECK("socketpair", socketpair(PF_UNIX, SOCK_DGRAM, 0, fds));
buffer_size = PIPE_BUFFER_SIZE;
n = sizeof(buffer_size);
C_CHECK("setsockopt 0 snd", setsockopt(fds[0], SOL_SOCKET, SO_SNDBUF, (void *)&buffer_size, n));
C_CHECK("setsockopt 0 rcv", setsockopt(fds[0], SOL_SOCKET, SO_RCVBUF, (void *)&buffer_size, n));
C_CHECK("setsockopt 1 snd", setsockopt(fds[1], SOL_SOCKET, SO_SNDBUF, (void *)&buffer_size, n));
C_CHECK("setsockopt 1 snd", setsockopt(fds[1], SOL_SOCKET, SO_RCVBUF, (void *)&buffer_size, n));
flags = fcntl(fds[0], F_GETFL);
flags |= O_NONBLOCK;
if( fcntl(fds[0], F_SETFL, flags) == -1 ){
perror("fcntl");
return -1;
}
plugin->host_pipe = fds[0];
plugin->plugin_pipe = wrap_io(plugin->mrb, fds[1], "w");
strncpy(plugin->name, plugin_name, sizeof(plugin->name) - 1);
// set ivs
// struct RClass *rprobe = mrb_class_get(plugin->mrb, "D3Probe");
// mrb_value probe_klass = mrb_obj_value(rprobe);
mrb_sym plugin_iv_sym = mrb_intern_cstr(plugin->mrb, "@plugin");
plugin->plugin_obj = mrb_iv_get(plugin->mrb, mrb_obj_value(plugin->mrb->top_self), plugin_iv_sym);
// pp(plugin->mrb, plugin->plugin_obj, 0);
// associates the c structure with the ruby object
DATA_PTR(plugin->plugin_obj) = (void*)plugin;
mrb_funcall(plugin->mrb, plugin->plugin_obj, "after_config", 0);
check_exception("after_config", plugin->mrb);
return 0;
}
bool init_mruby()
{
Serial2.println("init_mruby enter");
g_mrb = mrb_open_allocf(myallocfCCM, NULL);
// g_mrb = mrb_open_allocf(myallocf, NULL);
Serial2.print("mrb_open done. total allocated : ");
Serial2.println(total_size, DEC);
mrb_load_irep(g_mrb, blinker);
RClass *freeRTOSModule = mrb_define_module(g_mrb, "FreeRTOS");
mrb_define_module_function(g_mrb, freeRTOSModule, "sleep", mrb_freertos_sleep, ARGS_REQ(1));
Serial2.println("mruby initialized");
return true;
}
void
grn_ctx_impl_mrb_init(grn_ctx *ctx)
{
if (!grn_ctx_impl_mrb_mruby_enabled) {
ctx->impl->mrb.state = NULL;
ctx->impl->mrb.base_directory[0] = '\0';
ctx->impl->mrb.module = NULL;
ctx->impl->mrb.object_class = NULL;
ctx->impl->mrb.checked_procs = NULL;
ctx->impl->mrb.registered_plugins = NULL;
ctx->impl->mrb.builtin.time_class = NULL;
ctx->impl->mrb.groonga.operator_class = NULL;
} else {
mrb_state *mrb;
mrb = mrb_open_allocf(grn_ctx_impl_mrb_allocf, ctx);
ctx->impl->mrb.state = mrb;
ctx->impl->mrb.base_directory[0] = '\0';
grn_ctx_impl_mrb_init_bindings(ctx);
if (ctx->impl->mrb.state->exc) {
mrb_value reason;
reason = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
ERR(GRN_UNKNOWN_ERROR,
"failed to initialize mruby: %.*s",
RSTRING_LEN(reason), RSTRING_PTR(reason));
mrb_close(ctx->impl->mrb.state);
ctx->impl->mrb.state = NULL;
} else {
ctx->impl->mrb.checked_procs =
grn_hash_create(ctx, NULL, sizeof(grn_id), 0, GRN_HASH_TINY);
ctx->impl->mrb.registered_plugins =
grn_hash_create(ctx, NULL, sizeof(grn_id), 0, GRN_HASH_TINY);
GRN_VOID_INIT(&(ctx->impl->mrb.buffer.from));
GRN_VOID_INIT(&(ctx->impl->mrb.buffer.to));
ctx->impl->mrb.builtin.time_class = mrb_class_get(mrb, "Time");
}
}
}
int main(int argc, char const *argv[])
{
#ifdef _MEM_PROFILER
uint8_t checkpoint_set = 0;
#endif
fd_set rfds;
char buffer[PIPE_BUFFER_SIZE];
int i, n;
Plugin plugins[MAX_PLUGINS];
int plugins_count = 0;
mrb_state *mrb;
mrb_value r_output, r_plugins_list;
mrb_sym output_gv_sym, plugins_to_load_gv_sym;
printf("Version: %s\n", PROBE_VERSION);
if( argc != 2 ){
printf("Usage: %s <config_path>\n", argv[0]);
exit(1);
}
#ifdef _MEM_PROFILER
init_profiler();
#endif
config_path = argv[1];
printf("Initializing core...\n");
mrb = mrb_open_allocf(profiler_allocf, "main");
output_gv_sym = mrb_intern_cstr(mrb, "$output");
plugins_to_load_gv_sym = mrb_intern_cstr(mrb, "$plugins_to_load");
setup_api(mrb);
execute_file(mrb, "plugins/main.rb");
execute_file(mrb, config_path);
printf("Loading plugins...\n");
r_plugins_list = mrb_gv_get(mrb, plugins_to_load_gv_sym);
for(i = 0; i< mrb_ary_len(mrb, r_plugins_list); i++){
char *path, tmp[100];
int ssize;
mrb_value r_plugin_name = mrb_ary_ref(mrb, r_plugins_list, i);
const char *plugin_name = mrb_string_value_cstr(mrb, &r_plugin_name);
snprintf(tmp, sizeof(tmp) - 1, "plugins/%s.rb", plugin_name);
ssize = strlen(tmp);
path = malloc(ssize + 1);
strncpy(path, tmp, ssize);
path[ssize] = '\0';
if( access(path, F_OK) == -1 ){
printf("cannot open plugin file \"%s\": %s\n", path, strerror(errno));
exit(1);
}
init_plugin_from_file(&plugins[plugins_count], path, plugin_name); plugins_count++;
}
printf("Instanciating output class...\n");
r_output = mrb_gv_get(mrb, output_gv_sym);
interval = mrb_fixnum(mrb_funcall(mrb, r_output, "interval", 0));
printf("Interval set to %dms\n", (int)interval);
printf("Sending initial report...\n");
mrb_funcall(mrb, r_output, "send_report", 0);
if (mrb->exc) {
mrb_print_error(mrb);
exit(1);
}
// start all the threads
for(i= 0; i< plugins_count; i++){
// printf("== plugin %d\n", i);
n = pthread_create(&plugins[i].thread, NULL, plugin_thread, (void *)&plugins[i]);
if( n < 0 ){
fprintf(stderr, "create failed\n");
}
}
if( signal(SIGINT, clean_exit) == SIG_ERR){
perror("signal");
exit(1);
}
while(running){
int fds[MAX_PLUGINS];
int maxfd = 0, ai;
struct timeval tv;
mrb_value r_buffer;
struct timeval cycle_started_at, cycle_completed_at;
gettimeofday(&cycle_started_at, NULL);
bzero(fds, sizeof(int) * MAX_PLUGINS);
// ask every plugin to send their data
for(i= 0; i< plugins_count; i++){
strcpy(buffer, "request");
if( send(plugins[i].host_pipe, buffer, strlen(buffer), 0) == -1 ){
printf("send error when writing in pipe connected to plugin '%s'\n", plugins[i].name);
}
fds[i] = plugins[i].host_pipe;
// printf("sent request to %d\n", i);
}
// printf("waiting answers...\n");
// and now wait for each answer
while(1){
int left = 0;
FD_ZERO(&rfds);
for(i = 0; i< MAX_PLUGINS; i++){
if( fds[i] != NOPLUGIN_VALUE ){
FD_SET(fds[i], &rfds);
left++;
if( fds[i] > maxfd )
maxfd = fds[i];
}
}
// printf("left: %d %d\n", left, left <= 0);
if( !running || (0 == left) )
break;
// substract 20ms to stay below the loop delay
fill_timeout(&tv, cycle_started_at, interval - 20);
// printf("before select\n");
n = select(maxfd + 1, &rfds, NULL, NULL, &tv);
// printf("after select: %d\n", n);
if( n > 0 ){
// find out which pipes have data
for(i = 0; i< MAX_PLUGINS; i++){
if( (fds[i] != NOPLUGIN_VALUE) && FD_ISSET(fds[i], &rfds) ){
while (1){
struct timeval answered_at;
n = read(fds[i], buffer, sizeof(buffer));
if( n == -1 ){
if( errno != EAGAIN )
perror("read");
break;
}
if( n == PIPE_BUFFER_SIZE ){
printf("PIPE_BUFFER_SIZE is too small, increase it ! (value: %d)\n", PIPE_BUFFER_SIZE);
continue;
}
gettimeofday(&answered_at, NULL);
// printf("received answer from %s in %u ms\n", (const char *) plugins[i].mrb->ud,
// (uint32_t)((answered_at.tv_sec - cycle_started_at.tv_sec) * 1000 +
// (answered_at.tv_usec - cycle_started_at.tv_usec) / 1000)
// );
buffer[n] = 0x00;
ai = mrb_gc_arena_save(mrb);
r_buffer = mrb_str_buf_new(mrb, n);
mrb_str_buf_cat(mrb, r_buffer, buffer, n);
// mrb_funcall(mrb, r_output, "tick", 0);
mrb_funcall(mrb, r_output, "add", 1, r_buffer);
check_exception("add", mrb);
// pp(mrb, r_output, 0);
mrb_gc_arena_restore(mrb, ai);
}
fds[i] = 0;
}
}
}
else if( n == 0 ) {
printf("no responses received from %d plugins.\n", left);
break;
// timeout
}
else {
perror("select");
}
}
int idx = mrb_gc_arena_save(mrb);
mrb_funcall(mrb, r_output, "flush", 0);
check_exception("flush", mrb);
mrb_gc_arena_restore(mrb, idx);
// and now sleep until the next cycle
gettimeofday(&cycle_completed_at, NULL);
#ifdef _MEM_PROFILER
if( checkpoint_set ){
print_allocations();
}
#endif
// force a gc run at the end of each cycle
mrb_full_gc(mrb);
// printf("[main] capa: %d / %d\n", mrb->arena_idx, mrb->arena_capa);
// for(i= 0; i< plugins_count; i++){
// printf("[%s] capa: %d / %d\n", plugins[i].name, plugins[i].mrb->arena_idx, plugins[i].mrb->arena_capa);
// }
#ifdef _MEM_PROFILER
checkpoint_set = 1;
// and set starting point
profiler_set_checkpoint();
#endif
#ifdef _MEM_PROFILER_RUBY
// dump VMS state
dump_state(mrb);
for(i= 0; i< plugins_count; i++){
dump_state(plugins[i].mrb);
}
#endif
fflush(stdout);
sleep_delay(&cycle_started_at, &cycle_completed_at, interval);
}
printf("Sending exit signal to all plugins...\n");
strcpy(buffer, "exit");
for(i= 0; i< plugins_count; i++){
C_CHECK("send", send(plugins[i].host_pipe, buffer, strlen(buffer), 0) );
}
printf("Giving some time for threads to exit...\n\n");
really_sleep(2000);
for(i= 0; i< plugins_count; i++){
int ret = pthread_kill(plugins[i].thread, 0);
// if a success is returned then the thread is still alive
// which means the thread did not acknoledged the exit message
// kill it.
if( ret == 0 ){
printf(" - plugin \"%s\" failed to exit properly, killing it...\n", (const char *) plugins[i].mrb->ud);
pthread_cancel(plugins[i].thread);
}
else {
printf(" - plugin \"%s\" exited properly.\n", (const char *) plugins[i].mrb->allocf_ud);
}
if( pthread_join(plugins[i].thread, NULL) < 0){
fprintf(stderr, "join failed\n");
}
mrb_close(plugins[i].mrb);
}
mrb_close(mrb);
printf("Exited !\n");
return 0;
}
