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iscsi_top: restore old delay value if scanf fails

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Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I27d8565296e6c1e94cadaa47c0dfd2cea31f7236
This commit is contained in:
Jim Harris 2017-03-27 14:48:36 -07:00
parent 031937d0ff
commit d35443d460
1 changed files with 4 additions and 2 deletions
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6
app/iscsi_top/iscsi_top.cpp
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@ -136,7 +136,7 @@ int main(int argc, char **argv)
struct spdk_trace_history *history; struct spdk_trace_history *history;
uint64_t tasks_done, last_tasks_done[SPDK_TRACE_MAX_LCORE]; uint64_t tasks_done, last_tasks_done[SPDK_TRACE_MAX_LCORE];
int delay, history_fd, i, quit, rc; int delay, old_delay, history_fd, i, quit, rc;
int tasks_done_delta, tasks_done_per_sec; int tasks_done_delta, tasks_done_per_sec;
int total_tasks_done_per_sec; int total_tasks_done_per_sec;
struct timeval timeout; struct timeval timeout;
@ -207,9 +207,11 @@ int main(int argc, char **argv)
switch (ch) { switch (ch) {
case 'd': case 'd':
printf("Enter num seconds to delay (1-10): "); printf("Enter num seconds to delay (1-10): ");
old_delay = delay;
rc = scanf("%d", &delay); rc = scanf("%d", &delay);
if (rc != 1) { if (rc != 1) {
break; fprintf(stderr, "Illegal delay value\n");
delay = old_delay;
} else if (delay < 1 || delay > 10) { } else if (delay < 1 || delay > 10) {
delay = 1; delay = 1;
} }