Add new control message to atomically get and clear statistics.
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parent
a8f6d55e95
commit
0521578550
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=64513
@ -116,6 +116,13 @@ static const struct ng_cmdlist ng_tee_cmds[] = {
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NULL,
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NULL
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},
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{
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NGM_TEE_COOKIE,
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NGM_TEE_GETCLR_STATS,
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"getclrstats",
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NULL,
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&ng_tee_stats_type
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},
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{ 0 }
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};
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@ -204,34 +211,40 @@ ngt_rcvmsg(node_p node, struct ng_mesg *msg, const char *retaddr,
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case NGM_TEE_COOKIE:
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switch (msg->header.cmd) {
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case NGM_TEE_GET_STATS:
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{
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case NGM_TEE_CLR_STATS:
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case NGM_TEE_GETCLR_STATS:
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{
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struct ng_tee_stats *stats;
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NG_MKRESPONSE(resp, msg,
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sizeof(struct ng_tee_stats), M_NOWAIT);
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if (resp == NULL) {
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error = ENOMEM;
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goto done;
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if (msg->header.cmd != NGM_TEE_CLR_STATS) {
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NG_MKRESPONSE(resp, msg,
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sizeof(*stats), M_NOWAIT);
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if (resp == NULL) {
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error = ENOMEM;
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goto done;
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}
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stats = (struct ng_tee_stats *)resp->data;
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bcopy(&sc->right.stats, &stats->right,
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sizeof(stats->right));
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bcopy(&sc->left.stats, &stats->left,
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sizeof(stats->left));
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bcopy(&sc->right2left.stats, &stats->right2left,
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sizeof(stats->right2left));
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bcopy(&sc->left2right.stats, &stats->left2right,
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sizeof(stats->left2right));
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}
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if (msg->header.cmd != NGM_TEE_GET_STATS) {
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bzero(&sc->right.stats,
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sizeof(sc->right.stats));
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bzero(&sc->left.stats,
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sizeof(sc->left.stats));
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bzero(&sc->right2left.stats,
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sizeof(sc->right2left.stats));
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bzero(&sc->left2right.stats,
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sizeof(sc->left2right.stats));
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}
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stats = (struct ng_tee_stats *) resp->data;
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bcopy(&sc->right.stats,
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&stats->right, sizeof(stats->right));
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bcopy(&sc->left.stats,
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&stats->left, sizeof(stats->left));
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bcopy(&sc->right2left.stats,
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&stats->right2left, sizeof(stats->right2left));
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bcopy(&sc->left2right.stats,
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&stats->left2right, sizeof(stats->left2right));
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break;
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break;
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}
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case NGM_TEE_CLR_STATS:
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bzero(&sc->right.stats, sizeof(sc->right.stats));
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bzero(&sc->left.stats, sizeof(sc->left.stats));
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bzero(&sc->right2left.stats,
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sizeof(sc->right2left.stats));
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bzero(&sc->left2right.stats,
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sizeof(sc->left2right.stats));
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break;
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default:
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error = EINVAL;
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break;
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