+static void init_flags(struct thread_data *td)
+{
+ struct thread_options *o = &td->o;
+
+ if (o->verify_backlog)
+ td->flags |= TD_F_VER_BACKLOG;
+ if (o->trim_backlog)
+ td->flags |= TD_F_TRIM_BACKLOG;
+ if (o->read_iolog_file)
+ td->flags |= TD_F_READ_IOLOG;
+ if (o->refill_buffers)
+ td->flags |= TD_F_REFILL_BUFFERS;
+ /*
+ * Always scramble buffers if asked to
+ */
+ if (o->scramble_buffers && fio_option_is_set(o, scramble_buffers))
+ td->flags |= TD_F_SCRAMBLE_BUFFERS;
+ /*
+ * But also scramble buffers, unless we were explicitly asked
+ * to zero them.
+ */
+ if (o->scramble_buffers && !(o->zero_buffers &&
+ fio_option_is_set(o, zero_buffers)))
+ td->flags |= TD_F_SCRAMBLE_BUFFERS;
+ if (o->verify != VERIFY_NONE)
+ td->flags |= TD_F_VER_NONE;
+
+ if (o->verify_async || o->io_submit_mode == IO_MODE_OFFLOAD)
+ td->flags |= TD_F_NEED_LOCK;
+}
+
+static int setup_random_seeds(struct thread_data *td)
+{
+ unsigned long seed;
+ unsigned int i;
+
+ if (!td->o.rand_repeatable && !fio_option_is_set(&td->o, rand_seed))
+ return init_random_state(td, td->rand_seeds, sizeof(td->rand_seeds));
+
+ seed = td->o.rand_seed;
+ for (i = 0; i < 4; i++)
+ seed *= 0x9e370001UL;
+
+ for (i = 0; i < FIO_RAND_NR_OFFS; i++) {
+ td->rand_seeds[i] = seed;
+ seed *= 0x9e370001UL;
+ }
+
+ td_fill_rand_seeds(td);
+ return 0;
+}
+
+enum {
+ FPRE_NONE = 0,
+ FPRE_JOBNAME,
+ FPRE_JOBNUM,
+ FPRE_FILENUM
+};
+
+static struct fpre_keyword {
+ const char *keyword;
+ size_t strlen;
+ int key;
+} fpre_keywords[] = {
+ { .keyword = "$jobname", .key = FPRE_JOBNAME, },
+ { .keyword = "$jobnum", .key = FPRE_JOBNUM, },
+ { .keyword = "$filenum", .key = FPRE_FILENUM, },
+ { .keyword = NULL, },
+ };
+
+static char *make_filename(char *buf, size_t buf_size,struct thread_options *o,
+ const char *jobname, int jobnum, int filenum)
+{
+ struct fpre_keyword *f;
+ char copy[PATH_MAX];
+ size_t dst_left = PATH_MAX - 1;
+
+ if (!o->filename_format || !strlen(o->filename_format)) {
+ sprintf(buf, "%s.%d.%d", jobname, jobnum, filenum);
+ return NULL;
+ }
+
+ for (f = &fpre_keywords[0]; f->keyword; f++)
+ f->strlen = strlen(f->keyword);
+
+ buf[buf_size - 1] = '\0';
+ strncpy(buf, o->filename_format, buf_size - 1);
+
+ memset(copy, 0, sizeof(copy));
+ for (f = &fpre_keywords[0]; f->keyword; f++) {
+ do {
+ size_t pre_len, post_start = 0;
+ char *str, *dst = copy;
+
+ str = strcasestr(buf, f->keyword);
+ if (!str)
+ break;
+
+ pre_len = str - buf;
+ if (strlen(str) != f->strlen)
+ post_start = pre_len + f->strlen;
+
+ if (pre_len) {
+ strncpy(dst, buf, pre_len);
+ dst += pre_len;
+ dst_left -= pre_len;
+ }
+
+ switch (f->key) {
+ case FPRE_JOBNAME: {
+ int ret;
+
+ ret = snprintf(dst, dst_left, "%s", jobname);
+ if (ret < 0)
+ break;
+ else if (ret > dst_left) {
+ log_err("fio: truncated filename\n");
+ dst += dst_left;
+ dst_left = 0;
+ } else {
+ dst += ret;
+ dst_left -= ret;
+ }
+ break;
+ }
+ case FPRE_JOBNUM: {
+ int ret;
+
+ ret = snprintf(dst, dst_left, "%d", jobnum);
+ if (ret < 0)
+ break;
+ else if (ret > dst_left) {
+ log_err("fio: truncated filename\n");
+ dst += dst_left;
+ dst_left = 0;
+ } else {
+ dst += ret;
+ dst_left -= ret;
+ }
+ break;
+ }
+ case FPRE_FILENUM: {
+ int ret;
+
+ ret = snprintf(dst, dst_left, "%d", filenum);
+ if (ret < 0)
+ break;
+ else if (ret > dst_left) {
+ log_err("fio: truncated filename\n");
+ dst += dst_left;
+ dst_left = 0;
+ } else {
+ dst += ret;
+ dst_left -= ret;
+ }
+ break;
+ }
+ default:
+ assert(0);
+ break;
+ }
+
+ if (post_start)
+ strncpy(dst, buf + post_start, dst_left);
+
+ strncpy(buf, copy, buf_size - 1);
+ } while (1);
+ }
+
+ return buf;
+}
+
+int parse_dryrun(void)
+{
+ return dump_cmdline || parse_only;
+}
+
+static void gen_log_name(char *name, size_t size, const char *logtype,
+ const char *logname, unsigned int num,
+ const char *suf, int per_job)
+{
+ if (per_job)
+ snprintf(name, size, "%s_%s.%d.%s", logname, logtype, num, suf);
+ else
+ snprintf(name, size, "%s_%s.%s", logname, logtype, suf);
+}
+
+static int check_waitees(char *waitee)
+{
+ struct thread_data *td;
+ int i, ret = 0;
+
+ for_each_td(td, i) {
+ if (td->subjob_number)
+ continue;
+
+ ret += !strcmp(td->o.name, waitee);
+ }
+
+ return ret;
+}
+
+static bool wait_for_ok(const char *jobname, struct thread_options *o)
+{
+ int nw;
+
+ if (!o->wait_for)
+ return true;
+
+ if (!strcmp(jobname, o->wait_for)) {
+ log_err("%s: a job cannot wait for itself (wait_for=%s).\n",
+ jobname, o->wait_for);
+ return false;
+ }
+
+ if (!(nw = check_waitees(o->wait_for))) {
+ log_err("%s: waitee job %s unknown.\n", jobname, o->wait_for);
+ return false;
+ }
+
+ if (nw > 1) {
+ log_err("%s: multiple waitees %s found,\n"
+ "please avoid duplicates when using wait_for option.\n",
+ jobname, o->wait_for);
+ return false;
+ }
+
+ return true;
+}
+