+/* This function is called by ltt_rw_init which has signals blocked */
+static void ltt_usertrace_fast_daemon(struct ltt_trace_info *shared_trace_info,
+ sigset_t oldset, pid_t l_traced_pid, pthread_t l_traced_thread)
+{
+ struct sigaction act;
+ int ret;
+ int fd_fac;
+ int fd_cpu;
+ char outfile_name[PATH_MAX];
+ char identifier_name[PATH_MAX];
+
+
+ traced_pid = l_traced_pid;
+ traced_thread = l_traced_thread;
+
+ printf("LTT ltt_usertrace_fast_daemon : init is %d, pid is %lu, traced_pid is %lu\n",
+ shared_trace_info->init, getpid(), traced_pid);
+
+ act.sa_handler = handler_sigusr1;
+ act.sa_flags = 0;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGUSR1);
+ sigaction(SIGUSR1, &act, NULL);
+
+ act.sa_handler = handler_sigusr2;
+ act.sa_flags = 0;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGUSR2);
+ sigaction(SIGUSR2, &act, NULL);
+
+ act.sa_handler = handler_sigalarm;
+ act.sa_flags = 0;
+ sigemptyset(&(act.sa_mask));
+ sigaddset(&(act.sa_mask), SIGALRM);
+ sigaction(SIGALRM, &act, NULL);
+
+ /* Enable signals */
+ ret = pthread_sigmask(SIG_SETMASK, &oldset, NULL);
+ if(ret) {
+ printf("LTT Error in pthread_sigmask\n");
+ }
+
+ alarm(3);
+
+ /* Open output files */
+ umask(00000);
+ ret = mkdir(LTT_USERTRACE_ROOT, 0777);
+ if(ret < 0 && errno != EEXIST) {
+ perror("LTT Error in creating output (mkdir)");
+ exit(-1);
+ }
+ ret = chdir(LTT_USERTRACE_ROOT);
+ if(ret < 0) {
+ perror("LTT Error in creating output (chdir)");
+ exit(-1);
+ }
+ snprintf(identifier_name, PATH_MAX-1, "%lu.%lu.%llu",
+ traced_pid, traced_thread, get_cycles());
+ snprintf(outfile_name, PATH_MAX-1, "facilities-%s", identifier_name);
+ fd_fac = creat(outfile_name, 0644);
+
+ snprintf(outfile_name, PATH_MAX-1, "cpu-%s", identifier_name);
+ fd_cpu = creat(outfile_name, 0644);
+
+
+ while(1) {
+ pause();
+ if(traced_pid == 0) break; /* parent died */
+ if(parent_exited) break;
+ printf("LTT Doing a buffer switch read. pid is : %lu\n", getpid());
+ //printf("Test parent. pid is : %lu, ppid is %lu\n", getpid(), getppid());
+ }
+
+ /* Buffer force switch (flush) */
+ //TODO
+
+ close(fd_fac);
+ close(fd_cpu);
+
+ /* The parent thread is dead and we have finished with the buffer */
+ munmap(shared_trace_info, sizeof(*shared_trace_info));
+
+ exit(0);
+}
+
+
+/* Reader-writer initialization */
+
+static enum ltt_process_role { LTT_ROLE_WRITER, LTT_ROLE_READER }
+ role = LTT_ROLE_WRITER;
+
+
+void ltt_rw_init(void)