X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=hello%2Fhello.c;h=3bbb2bd94961523bb7721fae991ef5a5740e423a;hb=811e4b93ba6acb72226a9243ae9a525f444e7e80;hp=67b9ef3a9f56f1455e2f43026d46e816d34ed792;hpb=20b37a3100b0d8722b361f62fd592520264fb9fa;p=ust.git diff --git a/hello/hello.c b/hello/hello.c index 67b9ef3..3bbb2bd 100644 --- a/hello/hello.c +++ b/hello/hello.c @@ -13,145 +13,6 @@ #include "relay.h" -char consumer_stack[10000]; - -#define CPRINTF(fmt, args...) safe_printf(fmt "\n", ## args) - -int safe_printf(const char *fmt, ...) -{ - static char buf[500]; - va_list ap; - int n; - - va_start(ap, fmt); - - n = vsnprintf(buf, sizeof(buf), fmt, ap); - - write(STDOUT_FILENO, buf, n); - - va_end(ap); -} - -struct consumer_channel { - int fd; - struct ltt_channel_struct *chan; -}; - -int consumer(void *arg) -{ - int result; - int fd; - char str[] = "Hello, this is the consumer.\n"; - struct ltt_trace_struct *trace; - struct consumer_channel *consumer_channels; - int i; - char trace_name[] = "auto"; - - ltt_lock_traces(); - trace = _ltt_trace_find(trace_name); - ltt_unlock_traces(); - - if(trace == NULL) { - CPRINTF("cannot find trace!"); - return 1; - } - - consumer_channels = (struct consumer_channel *) malloc(trace->nr_channels * sizeof(struct consumer_channel)); -if(consumer_channels == NULL) { - ERR("malloc returned NULL"); - return 1; - } - - CPRINTF("opening trace files"); - for(i=0; inr_channels; i++) { - char tmp[100]; - struct ltt_channel_struct *chan = &trace->channels[i]; - - consumer_channels[i].chan = chan; - - snprintf(tmp, sizeof(tmp), "trace/%s", chan->channel_name); - result = consumer_channels[i].fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 00644); - if(result == -1) { - perror("open"); - return -1; - } - CPRINTF("\topened trace file %s", tmp); - - } - CPRINTF("done opening trace files"); - - for(;;) { - /*wait*/ - - for(i=0; inr_channels; i++) { - struct rchan *rchan = consumer_channels[i].chan->trans_channel_data; - struct rchan_buf *rbuf = rchan->buf; - struct ltt_channel_buf_struct *lttbuf = consumer_channels[i].chan->buf; - long consumed_old; - - result = ltt_do_get_subbuf(rbuf, lttbuf, &consumed_old); - if(result < 0) { - CPRINTF("ltt_do_get_subbuf: error: %s", strerror(-result)); - } - else { - CPRINTF("success!"); - - result = write(consumer_channels[i].fd, rbuf->buf_data + (consumed_old & (2 * 4096-1)), 4096); - ltt_do_put_subbuf(rbuf, lttbuf, consumed_old); - } - } - - sleep(1); - } - -// CPRINTF("consumer: got a trace: %s with %d channels\n", trace_name, trace->nr_channels); -// -// struct ltt_channel_struct *chan = &trace->channels[0]; -// -// CPRINTF("channel 1 (%s) active=%u", chan->channel_name, chan->active & 1); - -// struct rchan *rchan = chan->trans_channel_data; -// struct rchan_buf *rbuf = rchan->buf; -// struct ltt_channel_buf_struct *lttbuf = chan->buf; -// long consumed_old; -// -// result = fd = open("trace.out", O_WRONLY | O_CREAT | O_TRUNC, 00644); -// if(result == -1) { -// perror("open"); -// return -1; -// } - -// for(;;) { -// write(STDOUT_FILENO, str, sizeof(str)); -// -// result = ltt_do_get_subbuf(rbuf, lttbuf, &consumed_old); -// if(result < 0) { -// CPRINTF("ltt_do_get_subbuf: error: %s", strerror(-result)); -// } -// else { -// CPRINTF("success!"); -// -// result = write(fd, rbuf->buf_data + (consumed_old & (2 * 4096-1)), 4096); -// ltt_do_put_subbuf(rbuf, lttbuf, consumed_old); -// } -// -// //CPRINTF("There seems to be %ld bytes available", SUBBUF_TRUNC(local_read(<tbuf->offset), rbuf->chan) - consumed_old); -// CPRINTF("Commit count %ld", local_read(<tbuf->commit_count[0])); -// -// -// sleep(1); -// } -} - -void start_consumer(void) -{ - int result; - - result = clone(consumer, consumer_stack+sizeof(consumer_stack)-1, CLONE_FS | CLONE_FILES | CLONE_VM | CLONE_SIGHAND | CLONE_THREAD, NULL); - if(result == -1) { - perror("clone"); - } -} void probe(const struct marker *mdata, void *probe_private, void *call_private, @@ -199,11 +60,10 @@ int main() init_int_handler(); - start_consumer(); printf("Hello, World!\n"); sleep(1); - for(i=0; i<50; i++) { + for(i=0; i<5000; i++) { trace_mark(ust, bar, "str %s", "FOOBAZ"); trace_mark(ust, bar2, "number1 %d number2 %d", 53, 9800); usleep(100000);