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Issue #96: Add udevd condition to udevadm trigger commands

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We must wait for udevd to be started before we call udevadm.  However,
udevd doesn't create a PID file, so we must also fake this.  There is
still a slight risk of a race condition: udevd not having properly
started before udevadm tries to connect, but it works OK in Debian.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson
2018-03-01 23:57:27 +01:00
parent f2655d14c8
commit 4585aa0fb4
1 changed files with 8 additions and 4 deletions
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src/finit.c
+8 -4
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@@ -381,18 +381,22 @@ int main(int argc, char* argv[])
udev = 1;
/* Register udevd as a monitored service */
snprintf(cmd, sizeof(cmd), "[S12345789] %s -- Device event managing daemon", path);
free(path);
snprintf(cmd, sizeof(cmd), "[S12345789] pid:udevd %s -- Device event managing daemon", path);
if (service_register(SVC_TYPE_SERVICE, cmd, global_rlimit, NULL)) {
_pe("Failed registering %s", path);
udev = 0;
} else {
snprintf(cmd, sizeof(cmd), ":1 [S] udevadm trigger -c add -t devices -- Requesting device events");
snprintf(cmd, sizeof(cmd), ":1 [S] <svc%s> "
"udevadm trigger -c add -t devices "
"-- Requesting device events", path);
service_register(SVC_TYPE_RUN, cmd, global_rlimit, NULL);
snprintf(cmd, sizeof(cmd), ":2 [S] udevadm trigger -c add -t subsystems -- Requesting subsystem events");
snprintf(cmd, sizeof(cmd), ":2 [S] <svc%s> "
"udevadm trigger -c add -t subsystems "
"-- Requesting subsystem events", path);
service_register(SVC_TYPE_RUN, cmd, global_rlimit, NULL);
}
free(path);
} else {
path = which("mdev");
if (path) {