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crtools: make to be able to split messages by pid

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If the option --log-pid is set, each process will have an own log file.
Otherwise PID is added to each log message.

A message can't be bigger than one page minus some bytes for pid.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2012-05-02 14:42:00 +04:00
committed by Pavel Emelyanov
parent ad7c18a1d4
commit fc7bedc50a
6 changed files with 48 additions and 4 deletions
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9
crtools.c
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@@ -395,6 +395,7 @@ int main(int argc, char *argv[])
{ "help", no_argument, 0, 'h' },
{ SK_EST_PARAM, no_argument, 0, 42 },
{ "close", required_argument, 0, 43 },
{ "log-pid", no_argument, 0, 44},
{ },
};
@@ -434,6 +435,7 @@ int main(int argc, char *argv[])
}
break;
case 'o':
opts.output = strdup(optarg);
if (log_init(optarg))
return -1;
log_inited = 1;
@@ -470,6 +472,9 @@ int main(int argc, char *argv[])
close(fd);
break;
}
case 44:
opts.log_file_per_pid = 1;
break;
case 'h':
default:
goto usage;
@@ -553,7 +558,9 @@ usage:
pr_msg(" --%s checkpoint/restore established TCP connections\n", SK_EST_PARAM);
pr_msg("\n* Logging:\n");
pr_msg(" -o|--log-file log file name (relative path is relative to --images-dir)\n");
pr_msg(" -o|--log-file [NAME] log file name (relative path is relative to --images-dir)\n");
pr_msg(" --log-pid if the -o option is in effect, each restored processes is\n");
pr_msg(" written to the [NAME].pid file\n");
pr_msg(" -v [num] set logging level\n");
pr_msg(" 0 - silent (only error messages)\n");
pr_msg(" 1 - informative (default)\n");