xentrace: Add a time parameter
Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
diff -r 6c15f46f69b9 tools/xentrace/xentrace.c
--- a/tools/xentrace/xentrace.c Mon Feb 25 15:58:39 2008 +0000
+++ b/tools/xentrace/xentrace.c Mon Feb 25 16:13:32 2008 +0000
@@ -55,6 +55,7 @@ typedef struct settings_st {
uint32_t cpu_mask;
unsigned long tbuf_size;
unsigned long disk_rsvd;
+ unsigned long timeout;
uint8_t discard:1,
disable_tracing:1;
} settings_t;
@@ -534,6 +535,7 @@ void usage(void)
" it exits. Selecting this option will tell it to\n" \
" keep tracing on. Traces will be collected in\n" \
" Xen's trace buffers until they become full.\n" \
+" -T --time-interval=s Run xentrace for s seconds and quit.\n" \
" -?, --help Show this message\n" \
" -V, --version Print program version\n" \
"\n" \
@@ -603,6 +605,7 @@ void parse_args(int argc, char **argv)
{ "evt-mask", required_argument, 0, 'e' },
{ "trace-buf-size", required_argument, 0, 'S' },
{ "reserve-disk-space", required_argument, 0, 'r' },
+ { "time-interval", required_argument, 0, 'T' },
{ "discard-buffers", no_argument, 0, 'D' },
{ "dont-disable-tracing", no_argument, 0, 'x' },
{ "help", no_argument, 0, '?' },
@@ -648,6 +651,10 @@ void parse_args(int argc, char **argv)
opts.disable_tracing = 0;
break;
+ case 'T':
+ opts.timeout = argtol(optarg, 0);
+ break;
+
default:
usage();
}
@@ -659,7 +666,6 @@ void parse_args(int argc, char **argv)
opts.outfile = argv[optind];
}
-
/* *BSD has no O_LARGEFILE */
#ifndef O_LARGEFILE
@@ -677,6 +683,7 @@ int main(int argc, char **argv)
opts.cpu_mask = 0;
opts.disk_rsvd = 0;
opts.disable_tracing = 1;
+ opts.timeout = 0;
parse_args(argc, argv);
@@ -692,6 +699,9 @@ int main(int argc, char **argv)
if ( opts.cpu_mask != 0 )
set_mask(opts.cpu_mask, 1);
+
+ if ( opts.timeout != 0 )
+ alarm(opts.timeout);
if ( opts.outfile )
outfd = open(opts.outfile,
@@ -717,6 +727,7 @@ int main(int argc, char **argv)
sigaction(SIGHUP, &act, NULL);
sigaction(SIGTERM, &act, NULL);
sigaction(SIGINT, &act, NULL);
+ sigaction(SIGALRM, &act, NULL);
ret = monitor_tbufs(outfd);
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
Home