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utils/examples: avoid busy waiting on wait for reconnect

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Signed-off-by: Peter Lieven <pl@kamp.de>
This commit is contained in:
Peter Lieven
2015-04-13 10:26:28 +02:00
parent a8b33cefac
commit e219f1bb97
5 changed files with 38 additions and 13 deletions
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32
utils/iscsi-ls.c
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@@ -31,6 +31,7 @@
#include <stdint.h>
#include <string.h>
#include <getopt.h>
#include <unistd.h>
#include "iscsi.h"
#include "scsi-lowlevel.h"
@@ -54,21 +55,26 @@ struct client_state {
void event_loop(struct iscsi_context *iscsi, struct client_state *state)
{
struct pollfd pfd;
struct pollfd pfd;
while (state->finished == 0) {
pfd.fd = iscsi_get_fd(iscsi);
pfd.events = iscsi_which_events(iscsi);
while (state->finished == 0) {
pfd.fd = iscsi_get_fd(iscsi);
pfd.events = iscsi_which_events(iscsi);
if (poll(&pfd, 1, -1) < 0) {
fprintf(stderr, "Poll failed");
exit(10);
}
if (iscsi_service(iscsi, pfd.revents) < 0) {
fprintf(stderr, "iscsi_service failed with : %s\n", iscsi_get_error(iscsi));
exit(10);
}
}
if (!pfd.events) {
sleep(1);
continue;
}
if (poll(&pfd, 1, -1) < 0) {
fprintf(stderr, "Poll failed");
exit(10);
}
if (iscsi_service(iscsi, pfd.revents) < 0) {
fprintf(stderr, "iscsi_service failed with : %s\n", iscsi_get_error(iscsi));
exit(10);
}
}
}
void show_lun(struct iscsi_context *iscsi, int lun)