X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=utilities%2Fovs-vsctl.c;h=d09cf7460b0f645f8cd94e50f644962d34ae7fb9;hb=9a3f4a496f9772b65562044f722536cd6270f698;hp=043530280365450075297a4dfe4db735560ab382;hpb=6b7b9d34c0eab9871cf6284c41108a84129817f3;p=openvswitch

diff --git a/utilities/ovs-vsctl.c b/utilities/ovs-vsctl.c
index 04353028..d09cf746 100644
--- a/utilities/ovs-vsctl.c
+++ b/utilities/ovs-vsctl.c
@@ -1305,12 +1305,11 @@ add_port(struct vsctl_context *ctx,
 
     get_info(ctx->ovs, &info);
     if (may_exist) {
-        struct vsctl_port *port;
+        struct vsctl_port *vsctl_port;
 
-        port = find_port(&info, port_name, false);
-        if (port) {
+        vsctl_port = find_port(&info, port_name, false);
+        if (vsctl_port) {
             struct svec want_names, have_names;
-            size_t i;
 
             svec_init(&want_names);
             for (i = 0; i < n_ifaces; i++) {
@@ -1319,15 +1318,16 @@ add_port(struct vsctl_context *ctx,
             svec_sort(&want_names);
 
             svec_init(&have_names);
-            for (i = 0; i < port->port_cfg->n_interfaces; i++) {
-                svec_add(&have_names, port->port_cfg->interfaces[i]->name);
+            for (i = 0; i < vsctl_port->port_cfg->n_interfaces; i++) {
+                svec_add(&have_names,
+                         vsctl_port->port_cfg->interfaces[i]->name);
             }
             svec_sort(&have_names);
 
-            if (strcmp(port->bridge->name, br_name)) {
+            if (strcmp(vsctl_port->bridge->name, br_name)) {
                 char *command = vsctl_context_to_string(ctx);
                 vsctl_fatal("\"%s\" but %s is actually attached to bridge %s",
-                            command, port_name, port->bridge->name);
+                            command, port_name, vsctl_port->bridge->name);
             }
 
             if (!svec_equal(&want_names, &have_names)) {
@@ -1975,6 +1975,28 @@ get_column(const struct vsctl_table_class *table, const char *column_name,
     }
 }
 
+static struct uuid *
+create_symbol(struct ovsdb_symbol_table *symtab, const char *id, bool *newp)
+{
+    struct ovsdb_symbol *symbol;
+
+    if (id[0] != '@') {
+        vsctl_fatal("row id \"%s\" does not begin with \"@\"", id);
+    }
+
+    if (newp) {
+        *newp = ovsdb_symbol_table_get(symtab, id) == NULL;
+    }
+
+    symbol = ovsdb_symbol_table_insert(symtab, id);
+    if (symbol->used) {
+        vsctl_fatal("row id \"%s\" may only be specified on one --id option",
+                    id);
+    }
+    symbol->used = true;
+    return &symbol->uuid;
+}
+
 static char *
 missing_operator_error(const char *arg, const char **allowed_operators,
                        size_t n_allowed)
@@ -2142,6 +2164,7 @@ error:
 static void
 cmd_get(struct vsctl_context *ctx)
 {
+    const char *id = shash_find_data(&ctx->options, "--id");
     bool if_exists = shash_find(&ctx->options, "--if-exists");
     const char *table_name = ctx->argv[1];
     const char *record_id = ctx->argv[2];
@@ -2152,6 +2175,15 @@ cmd_get(struct vsctl_context *ctx)
 
     table = get_table(table_name);
     row = must_get_row(ctx, table, record_id);
+    if (id) {
+        bool new;
+
+        *create_symbol(ctx->symtab, id, &new) = row->uuid;
+        if (!new) {
+            vsctl_fatal("row id \"%s\" specified on \"get\" command was used "
+                        "before it was defined", id);
+        }
+    }
     for (i = 3; i < ctx->argc; i++) {
         const struct ovsdb_idl_column *column;
         const struct ovsdb_datum *datum;
@@ -2453,24 +2485,7 @@ cmd_create(struct vsctl_context *ctx)
     const struct uuid *uuid;
     int i;
 
-    if (id) {
-        struct ovsdb_symbol *symbol;
-
-        if (id[0] != '@') {
-            vsctl_fatal("row id \"%s\" does not begin with \"@\"", id);
-        }
-
-        symbol = ovsdb_symbol_table_insert(ctx->symtab, id);
-        if (symbol->used) {
-            vsctl_fatal("row id \"%s\" may only be used to insert a single "
-                        "row", id);
-        }
-        symbol->used = true;
-
-        uuid = &symbol->uuid;
-    } else {
-        uuid = NULL;
-    }
+    uuid = id ? create_symbol(ctx->symtab, id, NULL) : NULL;
 
     table = get_table(table_name);
     row = ovsdb_idl_txn_insert(ctx->txn, table->class, uuid);
@@ -2767,8 +2782,8 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
 
             ds_chomp(ds, '\n');
             for (j = 0; j < ds->length; j++) {
-                int c = ds->string[j];
-                switch (c) {
+                int ch = ds->string[j];
+                switch (ch) {
                 case '\n':
                     fputs("\\n", stdout);
                     break;
@@ -2778,7 +2793,7 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
                     break;
 
                 default:
-                    putchar(c);
+                    putchar(ch);
                 }
             }
             putchar('\n');
@@ -2796,8 +2811,6 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
 
     if (wait_for_reload && status != TXN_UNCHANGED) {
         for (;;) {
-            const struct ovsrec_open_vswitch *ovs;
-
             ovsdb_idl_run(idl);
             OVSREC_OPEN_VSWITCH_FOR_EACH (ovs, idl) {
                 if (ovs->cur_cfg >= next_cfg) {
@@ -2867,7 +2880,7 @@ static const struct vsctl_command_syntax all_commands[] = {
     {"emer-reset", 0, 0, cmd_emer_reset, NULL, ""},
 
     /* Parameter commands. */
-    {"get", 3, INT_MAX, cmd_get, NULL, "--if-exists"},
+    {"get", 2, INT_MAX, cmd_get, NULL, "--if-exists,--id="},
     {"list", 1, INT_MAX, cmd_list, NULL, ""},
     {"set", 3, INT_MAX, cmd_set, NULL, ""},
     {"add", 4, INT_MAX, cmd_add, NULL, ""},