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-rw-r--r--vlib/example/main_stub.c385
1 files changed, 385 insertions, 0 deletions
diff --git a/vlib/example/main_stub.c b/vlib/example/main_stub.c
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+#include <math.h>
+
+int main (int argc, char * argv[])
+{
+ return vlib_unix_main (argc, argv);
+}
+
+static clib_error_t *
+main_stub_init (vlib_main_t * vm)
+{
+ clib_error_t * error;
+
+ if ((error = unix_physmem_init (vm, /* fail_if_physical_memory_not_present */ 0)))
+ return error;
+
+ if ((error = vlib_call_init_function (vm, unix_cli_init)))
+ return error;
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (main_stub_init);
+
+#if 0
+/* Node test code. */
+typedef struct {
+ int scalar;
+ int vector[0];
+} my_frame_t;
+
+static u8 * format_my_node_frame (u8 * s, va_list * va)
+{
+ vlib_frame_t * f = va_arg (*va, vlib_frame_t *);
+ my_frame_t * g = vlib_frame_args (f);
+ int i;
+
+ s = format (s, "scalar %d, vector { ", g->scalar);
+ for (i = 0; i < f->n_vectors; i++)
+ s = format (s, "%d, ", g->vector[i]);
+ s = format (s, " }");
+
+ return s;
+}
+
+static uword
+my_func (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ vlib_node_t * node;
+ my_frame_t * y;
+ u32 i, n_left = 0;
+ static int serial;
+ int verbose;
+
+ node = vlib_get_node (vm, rt->node_index);
+
+ verbose = 0;
+
+ if (verbose && f)
+ vlib_cli_output (vm, "%v: call frame %p %U", node->name,
+ f, format_my_node_frame, f);
+
+ if (rt->n_next_nodes > 0)
+ {
+ vlib_frame_t * next = vlib_get_next_frame (vm, rt, /* next index */ 0);
+ n_left = VLIB_FRAME_SIZE - next->n_vectors;
+ y = vlib_frame_args (next);
+ y->scalar = serial++;
+ }
+ else
+ y = 0;
+
+ for (i = 0; i < 5; i++)
+ {
+ if (y)
+ {
+ ASSERT (n_left > 0);
+ n_left--;
+ y->vector[i] = y->scalar + i;
+ }
+ }
+ if (y)
+ vlib_put_next_frame (vm, rt, /* next index */ 0, n_left);
+
+ if (verbose)
+ vlib_cli_output (vm, "%v: return frame %p", node->name, f);
+
+ return i;
+}
+
+VLIB_REGISTER_NODE (my_node1,static) = {
+ .function = my_func,
+ .type = VLIB_NODE_TYPE_INPUT,
+ .name = "my-node1",
+ .scalar_size = sizeof (my_frame_t),
+ .vector_size = STRUCT_SIZE_OF (my_frame_t, vector[0]),
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "my-node2",
+ },
+};
+
+VLIB_REGISTER_NODE (my_node2,static) = {
+ .function = my_func,
+ .name = "my-node2",
+ .scalar_size = sizeof (my_frame_t),
+ .vector_size = STRUCT_SIZE_OF (my_frame_t, vector[0]),
+};
+
+#endif
+
+#if 0
+
+typedef enum {
+ MY_EVENT_TYPE1,
+ MY_EVENT_TYPE2,
+} my_process_completion_type_t;
+
+typedef struct {
+ int a;
+ f64 b;
+} my_process_event_data_t;
+
+static u8 * format_my_process_event_data (u8 * s, va_list * va)
+{
+ my_process_event_data_t * d = va_arg (*va, my_process_event_data_t *);
+ return format (s, "{ a %d b %.6f}", d->a, d->b);
+}
+
+static uword
+my_proc (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ vlib_node_t * node;
+ u32 i;
+
+ node = vlib_get_node (vm, rt->node_index);
+
+ vlib_cli_output (vm, "%v: call frame %p", node->name, f);
+
+ for (i = 0; i < 5; i++)
+ {
+ vlib_cli_output (vm, "%v: %d", node->name, i);
+ vlib_process_suspend (vm, 1e0 /* secs */);
+ }
+
+ vlib_cli_output (vm, "%v: return frame %p", node->name, f);
+
+ if (0)
+ {
+ uword n_events_seen, type, * data = 0;
+
+ for (n_events_seen = 0; n_events_seen < 2;)
+ {
+ vlib_process_wait_for_event (vm);
+ type = vlib_process_get_events (vm, &data);
+ n_events_seen += vec_len (data);
+ vlib_cli_output (vm, "%U %v: completion #%d type %d data 0x%wx",
+ format_time_interval, "h:m:s:u", vlib_time_now (vm),
+ node->name, i, type, data[0]);
+ _vec_len (data) = 0;
+ }
+
+ vec_free (data);
+ }
+ else
+ {
+ uword n_events_seen, i, type;
+ my_process_event_data_t * data;
+ for (n_events_seen = 0; n_events_seen < 2;)
+ {
+ vlib_process_wait_for_event (vm);
+ data = vlib_process_get_event_data (vm, &type);
+ vec_foreach_index (i, data) {
+ vlib_cli_output (vm, "%U event type %d data %U",
+ format_time_interval, "h:m:s:u", vlib_time_now (vm),
+ type, format_my_process_event_data, data);
+ }
+ n_events_seen += vec_len (data);
+ vlib_process_put_event_data (vm, data);
+ }
+ }
+
+ return i;
+}
+
+VLIB_REGISTER_NODE (my_proc_node,static) = {
+ .function = my_proc,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "my-proc",
+};
+
+static uword
+my_proc_input (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ static int i;
+
+ if (i++ < 2)
+ {
+ if (0)
+ vlib_process_signal_event (vm, my_proc_node.index,
+ i == 1 ? MY_EVENT_TYPE1 : MY_EVENT_TYPE2,
+ 0x12340000 + i);
+ else
+ {
+ my_process_event_data_t * d;
+ f64 dt = 5;
+ d = vlib_process_signal_event_at_time (vm,
+ i * dt,
+ my_proc_node.index,
+ i == 1 ? MY_EVENT_TYPE1 : MY_EVENT_TYPE2,
+ 1 /* elts */,
+ sizeof (d[0]));
+ d->a = i;
+ d->b = vlib_time_now (vm);
+ }
+ }
+ else
+ vlib_node_set_state (vm, rt->node_index, VLIB_NODE_STATE_DISABLED);
+
+ return 0;
+}
+
+VLIB_REGISTER_NODE (my_proc_input_node,static) = {
+ .function = my_proc_input,
+ .type = VLIB_NODE_TYPE_INPUT,
+ .name = "my-proc-input",
+};
+
+static uword _unformat_farith (unformat_input_t * i, va_list * args)
+{
+ u32 prec = va_arg (*args, u32);
+ f64 * result = va_arg (*args, f64 *);
+ f64 tmp[2];
+
+ /* Binary operations in from lowest to highest precedence. */
+ char * binops[] = {
+ "+%U", "-%U", "/%U", "*%U", "^%U",
+ };
+
+ if (prec <= ARRAY_LEN (binops) - 1
+ && unformat_user (i, _unformat_farith, prec + 1, &tmp[0]))
+ {
+ int p;
+ for (p = prec; p < ARRAY_LEN (binops); p++)
+ {
+ if (unformat (i, binops[p],
+ _unformat_farith, prec + 0, &tmp[1]))
+ {
+ switch (binops[p][0])
+ {
+ case '+': result[0] = tmp[0] + tmp[1]; break;
+ case '-': result[0] = tmp[0] - tmp[1]; break;
+ case '/': result[0] = tmp[0] / tmp[1]; break;
+ case '*': result[0] = tmp[0] * tmp[1]; break;
+ case '^': result[0] = pow (tmp[0], tmp[1]); break;
+ default: abort ();
+ }
+ return 1;
+ }
+ }
+ result[0] = tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "-%U",
+ _unformat_farith, prec + 0, &tmp[0]))
+ {
+ result[0] = -tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "(%U)",
+ _unformat_farith, 0, &tmp[0]))
+ {
+ result[0] = tmp[0];
+ return 1;
+ }
+
+ else if (unformat (i, "%f", result))
+ return 1;
+
+ else
+ return 0;
+}
+
+static uword unformat_farith (unformat_input_t * i, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ f64 * result = va_arg (*args, f64 *);
+ return unformat_user (i, _unformat_farith, 0, result);
+}
+
+static uword unformat_integer (unformat_input_t * i, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ u32 * data = va_arg (*args, u32 *);
+ return unformat (i, "%d", data);
+}
+
+static VLIB_CLI_PARSE_RULE (my_parse_rule1) = {
+ .name = "decimal_integer",
+ .short_help = "a decimal integer",
+ .unformat_function = unformat_integer,
+ .data_size = sizeof (u32),
+};
+
+static VLIB_CLI_PARSE_RULE (my_parse_rule2) = {
+ .name = "float_expression",
+ .short_help = "floating point expression",
+ .unformat_function = unformat_farith,
+ .data_size = sizeof (f64),
+};
+
+static clib_error_t *
+bar_command (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ switch (cmd->function_arg)
+ {
+ case 2: {
+ u32 * d, * e;
+ d = vlib_cli_get_parse_rule_result (vm, 0);
+ e = vlib_cli_get_parse_rule_result (vm, 1);
+ vlib_cli_output (vm, "bar2 %d %d", d[0], e[0]);
+ break;
+ }
+
+ case 1: {
+ u32 * d = vlib_cli_get_parse_rule_result (vm, 0);
+ vlib_cli_output (vm, "bar1 %d", d[0]);
+ break;
+ }
+
+ case 3: {
+ f64 * d = vlib_cli_get_parse_rule_result (vm, 0);
+ vlib_cli_output (vm, "expr %.6f", d[0]);
+ }
+ }
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND (bar_command2, static) = {
+ .path = "bar %decimal_integer",
+ .short_help = "bar1 command",
+ .function = bar_command,
+ .function_arg = 1,
+};
+VLIB_CLI_COMMAND (bar_command1, static) = {
+ .path = "bar %decimal_integer %decimal_integer",
+ .short_help = "bar2 command",
+ .function = bar_command,
+ .function_arg = 2,
+};
+VLIB_CLI_COMMAND (bar_command3, static) = {
+ .path = "zap %float_expression",
+ .short_help = "bar3 command",
+ .function = bar_command,
+ .function_arg = 3,
+};
+
+#endif
+