Lines Matching +full:poll +full:- +full:period

29 .Nd Hyper-V Volume Shadow Copy Service API
32 .Bd -literal
55 But for VM guest running on Hyper-V, the corresponding VSS is
59 But it is not aware of the freeze/thaw notification from Hyper-V host.
63 Thus, it plays a role of broker to forward the freeze/thaw command from Hyper-V host
66 VM, and sends the result back to Hyper-V host.
72 When Hyper-V host wants to take a snapshot of the
86 Any error occurs during this period,
88 will inform Hyper-V host that VSS is not supported.
89 In addition, there is a default timeout limit before sending response to Hyper-V host.
93 will occur and VSS unsupported is responded to Hyper-V host.
95 After Hyper-V host confirmed the
108 will inform Hyper-V host that freezing is done.
112 If there is any error occurs or timeout happened, the freezing is failed on Hyper-V side.
114 Hyper-V host will send thaw request after taking the snapshot, typically, this period is
121 There is also a timeout check before sending response to Hyper-V host.
134 an error (-1) will be returned, and errno was set.
143 .Bd -literal
153 #include <poll.h>
235 "%s -f <0|1|2>: simulate app freeze."
237 " -c <0|1|2>: simulate vss feature check"
238 " -t <0|1|2>: simulate app thaw."
240 " -d : enable debug mode\\n"
241 " -n : run this tool under non-daemon mode\\n", cmd);
251 while ((ch = getopt(argc, argv, "f:c:t:dnh")) != -1) {
295 r = poll(app_vss_fd, 1, INFTIM);
297 VSS_LOG(LOG_DEBUG, "poll returned r = %d, revent = 0x%x\\n",
308 * For poll return failure other than EAGAIN,
311 VSS_LOG(LOG_ERR, "Poll failed.\\n");
312 perror("poll");
368 .An -nosplit