Add 'status' command which prints general information about devices.
For example:
# gmirror status
Name Status Components
mirror/root COMPLETE ad0s1a
ad2s1a
mirror/data DEGRADED da0
da1 (76%)
da2
MFC after: 1 week
This commit is contained in:
pjd
parent
bc988d83e6
commit
9aad0c73fc
@ -65,12 +65,14 @@ static int std_available(const char *name);
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static void std_help(struct gctl_req *req, unsigned flags);
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static void std_list(struct gctl_req *req, unsigned flags);
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static void std_status(struct gctl_req *req, unsigned flags);
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static void std_load(struct gctl_req *req, unsigned flags);
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static void std_unload(struct gctl_req *req, unsigned flags);
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struct g_command std_commands[] = {
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{ "help", 0, std_help, G_NULL_OPTS },
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{ "list", 0, std_list, G_NULL_OPTS },
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{ "status", 0, std_status, G_NULL_OPTS },
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{ "load", G_FLAG_VERBOSE | G_FLAG_LOADKLD, std_load, G_NULL_OPTS },
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{ "unload", G_FLAG_VERBOSE, std_unload, G_NULL_OPTS },
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G_CMD_SENTINEL
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@ -744,6 +746,178 @@ std_list(struct gctl_req *req, unsigned flags __unused)
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geom_deletetree(&mesh);
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}
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static int
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std_status_available(void)
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{
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/* 'status' command is available when 'list' command is. */
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return (std_list_available());
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}
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static void
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status_update_len(struct ggeom *gp, size_t *name_len, size_t *status_len)
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{
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struct gprovider *pp;
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struct gconfig *conf;
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size_t len;
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assert(gp != NULL);
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assert(name_len != NULL);
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assert(status_len != NULL);
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pp = LIST_FIRST(&gp->lg_provider);
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if (pp != NULL)
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len = strlen(pp->lg_name);
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else
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len = strlen(gp->lg_name);
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if (*name_len < len)
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*name_len = len;
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LIST_FOREACH(conf, &gp->lg_config, lg_config) {
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if (strcasecmp(conf->lg_name, "state") == 0) {
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len = strlen(conf->lg_val);
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if (*status_len < len)
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*status_len = len;
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}
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}
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}
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static int
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status_one_consumer(struct gconsumer *cp)
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{
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struct gprovider *pp;
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struct gconfig *conf;
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pp = cp->lg_provider;
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if (pp == NULL)
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return (0);
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printf(" %s", pp->lg_name);
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LIST_FOREACH(conf, &cp->lg_config, lg_config) {
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if (strcasecmp(conf->lg_name, "synchronized") == 0)
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printf(" (%s)", conf->lg_val);
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}
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printf("\n");
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return (1);
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}
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static void
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status_one_geom(struct ggeom *gp, size_t name_len, size_t status_len)
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{
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struct gprovider *pp;
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struct gconsumer *cp;
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struct gconfig *conf;
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const char *name;
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int newline = 0;
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pp = LIST_FIRST(&gp->lg_provider);
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if (pp != NULL)
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name = pp->lg_name;
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else
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name = gp->lg_name;
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printf("%*s", name_len, name);
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LIST_FOREACH(conf, &gp->lg_config, lg_config) {
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if (strcasecmp(conf->lg_name, "state") == 0) {
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printf(" %*s", status_len, conf->lg_val);
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break;
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}
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}
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if (conf == NULL)
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printf(" %*s", status_len, "N/A");
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LIST_FOREACH(cp, &gp->lg_consumer, lg_consumer) {
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if (cp != LIST_FIRST(&gp->lg_consumer))
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printf("%*s %*s", name_len, "", status_len, "");
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if (status_one_consumer(cp) && !newline)
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newline = 1;
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}
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if (!newline)
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printf("\n");
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}
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static void
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std_status(struct gctl_req *req, unsigned flags __unused)
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{
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struct gmesh mesh;
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struct gclass *classp;
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struct ggeom *gp;
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size_t name_len, status_len;
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int error, *nargs;
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error = geom_gettree(&mesh);
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if (error != 0) {
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fprintf(stderr, "Cannot get GEOM tree: %s.\n", strerror(error));
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exit(EXIT_FAILURE);
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}
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classp = find_class(&mesh, gclass_name);
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if (classp == NULL) {
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fprintf(stderr, "Class %s not found.\n", gclass_name);
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goto end;
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}
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nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
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if (nargs == NULL) {
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gctl_error(req, "No '%s' argument.", "nargs");
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goto end;
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}
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name_len = strlen("Name");
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status_len = strlen("Status");
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if (*nargs > 0) {
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int i, n = 0;
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for (i = 0; i < *nargs; i++) {
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const char *name;
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char param[16];
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snprintf(param, sizeof(param), "arg%d", i);
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name = gctl_get_asciiparam(req, param);
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assert(name != NULL);
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gp = find_geom(classp, name);
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if (gp == NULL)
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fprintf(stderr, "No such geom: %s.\n", name);
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else {
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status_update_len(gp, &name_len, &status_len);
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n++;
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}
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}
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if (n == 0)
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goto end;
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} else {
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int n = 0;
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LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
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if (LIST_EMPTY(&gp->lg_provider))
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continue;
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status_update_len(gp, &name_len, &status_len);
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n++;
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}
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if (n == 0)
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goto end;
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}
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printf("%*s %*s %s\n", name_len, "Name", status_len, "Status",
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"Components");
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if (*nargs > 0) {
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int i;
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for (i = 0; i < *nargs; i++) {
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const char *name;
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char param[16];
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snprintf(param, sizeof(param), "arg%d", i);
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name = gctl_get_asciiparam(req, param);
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assert(name != NULL);
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gp = find_geom(classp, name);
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if (gp != NULL) {
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status_one_geom(gp, name_len, status_len);
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}
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}
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} else {
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LIST_FOREACH(gp, &classp->lg_geom, lg_geom) {
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if (LIST_EMPTY(&gp->lg_provider))
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continue;
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status_one_geom(gp, name_len, status_len);
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}
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}
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end:
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geom_deletetree(&mesh);
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}
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static int
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std_load_available(void)
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{
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@ -824,6 +998,8 @@ std_available(const char *name)
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return (1);
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else if (strcmp(name, "list") == 0)
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return (std_list_available());
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else if (strcmp(name, "status") == 0)
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return (std_status_available());
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else if (strcmp(name, "load") == 0)
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return (std_load_available());
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else if (strcmp(name, "unload") == 0)
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