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sys: add null driver

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Add a new clock driver that doesn't actually try to adjust the clock.
It allows chronyd to run without the capability to adjust/set the system
clock, e.g. in some containers. It can be enabled by the -x option.
This commit is contained in:
Miroslav Lichvar
2017-03-09 18:16:56 +01:00
parent 0ff449e6a6
commit c44346096c
7 changed files with 202 additions and 5 deletions
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6
main.c
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@@ -376,7 +376,7 @@ int main
int do_init_rtc = 0, restarted = 0, timeout = 0;
int other_pid;
int scfilter_level = 0, lock_memory = 0, sched_priority = 0;
int system_log = 1;
int clock_control = 1, system_log = 1;
int config_args = 0;
do_platform_checks();
@@ -435,6 +435,8 @@ int main
++argv, --argc;
if (argc == 0 || sscanf(*argv, "%d", &timeout) != 1 || timeout <= 0)
LOG_FATAL("Bad timeout");
} else if (!strcmp("-x", *argv)) {
clock_control = 0;
} else if (!strcmp("-4", *argv)) {
address_family = IPADDR_INET4;
} else if (!strcmp("-6", *argv)) {
@@ -499,7 +501,7 @@ int main
PRV_Initialise();
LCL_Initialise();
SCH_Initialise();
SYS_Initialise();
SYS_Initialise(clock_control);
RTC_Initialise(do_init_rtc);
SRC_Initialise();
RCL_Initialise();