#include <stdio.h>
#include <unistd.h>
#include <sys/mman.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
#include "../libmarkers/marker.h"
#include "usterr.h"
#include "tracer.h"
#include "marker-control.h"
+#include "relay.h"
+
+
+char consumer_stack[10000];
+char trace_name[] = "theusttrace";
+char trace_type[] = "ustrelay";
+
+#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);
+}
+
+int consumer(void *arg)
+{
+ int result;
+
+ int fd;
+
+ char str[] = "Hello, this is the consumer.\n";
+
+ struct ltt_trace_struct *trace;
+
+ ltt_lock_traces();
+ trace = _ltt_trace_find(trace_name);
+ ltt_unlock_traces();
+
+ if(trace == NULL) {
+ CPRINTF("cannot find trace!");
+ return 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, NULL);
+ if(result == -1) {
+ perror("clone");
+ }
+}
void probe(const struct marker *mdata,
void *probe_private, void *call_private,
printf("In probe\n");
}
-//ust// void try_map()
-//ust// {
-//ust// char *m;
-//ust//
-//ust// /* maybe add MAP_LOCKED */
-//ust// m = mmap(NULL, 4096, PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE , -1, 0);
-//ust// if(m == (char*)-1) {
-//ust// perror("mmap");
-//ust// return;
-//ust// }
-//ust//
-//ust// printf("The mapping is at %p.\n", m);
-//ust// strcpy(m, "Hello, Mapping!");
-//ust// }
-
-//sig_atomic_t must_quit;
-
void inthandler(int sig)
{
printf("in handler\n");
return 0;
}
-//ust// DEFINE_MUTEX(probes_mutex);
-//ust//
-//ust// static LIST_HEAD(probes_registered_list);
-//ust//
-//ust// int ltt_marker_connect(const char *channel, const char *mname,
-//ust// const char *pname)
-//ust//
-//ust// {
-//ust// int ret;
-//ust// struct ltt_active_marker *pdata;
-//ust// struct ltt_available_probe *probe;
-//ust//
-//ust// ltt_lock_traces();
-//ust// mutex_lock(&probes_mutex);
-//ust// probe = get_probe_from_name(pname);
-//ust// if (!probe) {
-//ust// ret = -ENOENT;
-//ust// goto end;
-//ust// }
-//ust// pdata = marker_get_private_data(channel, mname, probe->probe_func, 0);
-//ust// if (pdata && !IS_ERR(pdata)) {
-//ust// ret = -EEXIST;
-//ust// goto end;
-//ust// }
-//ust// pdata = kmem_cache_zalloc(markers_loaded_cachep, GFP_KERNEL);
-//ust// if (!pdata) {
-//ust// ret = -ENOMEM;
-//ust// goto end;
-//ust// }
-//ust// pdata->probe = probe;
-//ust// /*
-//ust// * ID has priority over channel in case of conflict.
-//ust// */
-//ust// ret = marker_probe_register(channel, mname, NULL,
-//ust// probe->probe_func, pdata);
-//ust// if (ret)
-//ust// kmem_cache_free(markers_loaded_cachep, pdata);
-//ust// else
-//ust// list_add(&pdata->node, &markers_loaded_list);
-//ust// end:
-//ust// mutex_unlock(&probes_mutex);
-//ust// ltt_unlock_traces();
-//ust// return ret;
-//ust// }
-//ust//
-//ust//
-//ust// int ltt_probe_register(struct ltt_available_probe *pdata)
-//ust// {
-//ust// int ret = 0;
-//ust// int comparison;
-//ust// struct ltt_available_probe *iter;
-//ust//
-//ust// mutex_lock(&probes_mutex);
-//ust// list_for_each_entry_reverse(iter, &probes_registered_list, node) {
-//ust// comparison = strcmp(pdata->name, iter->name);
-//ust// if (!comparison) {
-//ust// ret = -EBUSY;
-//ust// goto end;
-//ust// } else if (comparison > 0) {
-//ust// /* We belong to the location right after iter. */
-//ust// list_add(&pdata->node, &iter->node);
-//ust// goto end;
-//ust// }
-//ust// }
-//ust// /* Should be added at the head of the list */
-//ust// list_add(&pdata->node, &probes_registered_list);
-//ust// end:
-//ust// mutex_unlock(&probes_mutex);
-//ust// return ret;
-//ust// }
-//ust//
-//ust//
-//ust// struct ltt_available_probe default_probe = {
-//ust// .name = "default",
-//ust// .format = NULL,
-//ust// .probe_func = ltt_vtrace,
-//ust// .callbacks[0] = ltt_serialize_data,
-//ust// };
-
int main()
{
int result;
printf("page size is %d\n", sysconf(_SC_PAGE_SIZE));
- char trace_name[] = "theusttrace";
- char trace_type[] = "ustrelay";
-
marker_control_init();
- marker_probe_register("abc", "testmark", "", probe, NULL);
- marker_probe_register("metadata", "core_marker_id", "channel %s name %s event_id %hu int #1u%zu long #1u%zu pointer #1u%zu size_t #1u%zu alignment #1u%u", probe, NULL);
+ //marker_probe_register("abc", "testmark", "", probe, NULL);
+//ust// marker_probe_register("metadata", "core_marker_id", "channel %s name %s event_id %hu int #1u%zu long #1u%zu pointer #1u%zu size_t #1u%zu alignment #1u%u", probe, NULL);
//ust// result = ltt_probe_register(&default_probe);
//ust// if(result)
//ust// ERR("ltt_probe_register");
- result = ltt_marker_connect("abc", "testmark2", "default");
- if(result)
- ERR("ltt_marker_connect");
+ //result = ltt_marker_connect("metadata", "testev", "default");
+ //if(result)
+ // ERR("ltt_marker_connect");
result = ltt_trace_setup(trace_name);
return 1;
}
-
+ start_consumer();
printf("Hello, World!\n");
+ sleep(1);
for(;;) {
- trace_mark(abc, testmark, "", MARK_NOARGS);
- trace_mark(abc, testmark2, "", MARK_NOARGS);
- sleep(1);
+ //trace_mark(abc, testmark, "", MARK_NOARGS);
+ //trace_mark(metadata, testev, "", MARK_NOARGS);
+ trace_mark(metadata, core_marker_id,
+ "channel %s name %s event_id %hu "
+ "int #1u%zu long #1u%zu pointer #1u%zu "
+ "size_t #1u%zu alignment #1u%u",
+ "abc", "def", (unsigned short)1000,
+ sizeof(int), sizeof(long), sizeof(void *),
+ sizeof(size_t), ltt_get_alignment());
+ usleep(100000);
}
scanf("%*s");
projects / ust.git / blobdiff