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[tor-commits] [tor/master] Test functions used for TB_EMPTY and CELL_STATS events.
commit e39292f21dd363bd7601b63b4f43a95705c3332b
Author: Karsten Loesing <karsten.loesing@xxxxxxx>
Date: Fri May 31 15:51:25 2013 +0200
Test functions used for TB_EMPTY and CELL_STATS events.
---
src/or/connection.c | 5 +-
src/or/connection.h | 11 ++
src/or/control.c | 22 +--
src/or/control.h | 26 +++-
src/test/Makefile.nmake | 6 +-
src/test/include.am | 1 +
src/test/test.c | 2 +
src/test/test_controller_events.c | 283 +++++++++++++++++++++++++++++++++++++
8 files changed, 331 insertions(+), 25 deletions(-)
diff --git a/src/or/connection.c b/src/or/connection.c
index 88def49..8425239 100644
--- a/src/or/connection.c
+++ b/src/or/connection.c
@@ -17,6 +17,7 @@
* part of a subclass (channel_tls_t).
*/
#define TOR_CHANNEL_INTERNAL_
+#define CONNECTION_PRIVATE
#include "channel.h"
#include "channeltls.h"
#include "circuitbuild.h"
@@ -2561,7 +2562,7 @@ msec_since_midnight(struct timeval tvnow)
* <b>tokens_removed</b> tokens removed at timestamp <b>tvnow</b> has run
* out of tokens, and if so, note the milliseconds since midnight in
* <b>timestamp_var</b> for the next TB_EMPTY event. */
-static void
+void
connection_buckets_note_empty_ts(uint32_t *timestamp_var,
int tokens_before, size_t tokens_removed,
struct timeval tvnow)
@@ -2728,7 +2729,7 @@ connection_bucket_refill_helper(int *bucket, int rate, int burst,
* <b>tvnow</b>, capped at <b>milliseconds_elapsed</b> milliseconds since
* last refilling that bucket. Return 0 if the bucket has not been empty
* since the last refill or has not been refilled. */
-static uint32_t
+uint32_t
bucket_millis_empty(int tokens_before, uint32_t last_empty_time,
int tokens_after, int milliseconds_elapsed,
struct timeval tvnow)
diff --git a/src/or/connection.h b/src/or/connection.h
index 3e656ec..c0894cd 100644
--- a/src/or/connection.h
+++ b/src/or/connection.h
@@ -214,5 +214,16 @@ void connection_enable_rate_limiting(connection_t *conn);
#define connection_type_uses_bufferevent(c) (0)
#endif
+#ifdef CONNECTION_PRIVATE
+/* Used only by connection.c and test*.c */
+uint32_t bucket_millis_empty(int tokens_before, uint32_t last_empty_time,
+ int tokens_after, int milliseconds_elapsed,
+ struct timeval tvnow);
+void connection_buckets_note_empty_ts(uint32_t *timestamp_var,
+ int tokens_before,
+ size_t tokens_removed,
+ struct timeval tvnow);
+#endif
+
#endif
diff --git a/src/or/control.c b/src/or/control.c
index 5e2020f..495b7d7 100644
--- a/src/or/control.c
+++ b/src/or/control.c
@@ -4015,27 +4015,11 @@ control_event_conn_bandwidth_used(void)
return 0;
}
-/** Helper structure: temporarily stores cell statistics for a circuit. */
-typedef struct cell_stats_t {
- /** Number of cells added in app-ward direction by command. */
- uint64_t added_cells_appward[CELL_COMMAND_MAX_ + 1];
- /** Number of cells added in exit-ward direction by command. */
- uint64_t added_cells_exitward[CELL_COMMAND_MAX_ + 1];
- /** Number of cells removed in app-ward direction by command. */
- uint64_t removed_cells_appward[CELL_COMMAND_MAX_ + 1];
- /** Number of cells removed in exit-ward direction by command. */
- uint64_t removed_cells_exitward[CELL_COMMAND_MAX_ + 1];
- /** Total waiting time of cells in app-ward direction by command. */
- uint64_t total_time_appward[CELL_COMMAND_MAX_ + 1];
- /** Total waiting time of cells in exit-ward direction by command. */
- uint64_t total_time_exitward[CELL_COMMAND_MAX_ + 1];
-} cell_stats_t;
-
/** Helper: iterate over cell statistics of <b>circ</b> and sum up added
* cells, removed cells, and waiting times by cell command and direction.
* Store results in <b>cell_stats</b>. Free cell statistics of the
* circuit afterwards. */
-static void
+void
sum_up_cell_stats_by_command(circuit_t *circ, cell_stats_t *cell_stats)
{
memset(cell_stats, 0, sizeof(cell_stats_t));
@@ -4067,7 +4051,7 @@ sum_up_cell_stats_by_command(circuit_t *circ, cell_stats_t *cell_stats)
* the (possibly zero) entry from <code>number_to_include</code>. If no
* entry in <code>include_if_non_zero</code> is positive, no string will
* be added to <code>event_parts</code>. */
-static void
+void
append_cell_stats_by_command(smartlist_t *event_parts, const char *key,
uint64_t *include_if_non_zero,
uint64_t *number_to_include)
@@ -4092,7 +4076,7 @@ append_cell_stats_by_command(smartlist_t *event_parts, const char *key,
/** Helper: format <b>cell_stats</b> for <b>circ</b> for inclusion in a
* CELL_STATS event and write result string to <b>event_string</b>. */
-static void
+void
format_cell_stats(char **event_string, circuit_t *circ,
cell_stats_t *cell_stats)
{
diff --git a/src/or/control.h b/src/or/control.h
index c79c432..1773a87 100644
--- a/src/or/control.h
+++ b/src/or/control.h
@@ -97,9 +97,33 @@ void control_event_bootstrap_problem(const char *warn, int reason);
void control_event_clients_seen(const char *controller_str);
#ifdef CONTROL_PRIVATE
-/* Used only by control.c and test.c */
+/* Used only by control.c and test*.c */
size_t write_escaped_data(const char *data, size_t len, char **out);
size_t read_escaped_data(const char *data, size_t len, char **out);
+
+/** Helper structure: temporarily stores cell statistics for a circuit. */
+typedef struct cell_stats_t {
+ /** Number of cells added in app-ward direction by command. */
+ uint64_t added_cells_appward[CELL_COMMAND_MAX_ + 1];
+ /** Number of cells added in exit-ward direction by command. */
+ uint64_t added_cells_exitward[CELL_COMMAND_MAX_ + 1];
+ /** Number of cells removed in app-ward direction by command. */
+ uint64_t removed_cells_appward[CELL_COMMAND_MAX_ + 1];
+ /** Number of cells removed in exit-ward direction by command. */
+ uint64_t removed_cells_exitward[CELL_COMMAND_MAX_ + 1];
+ /** Total waiting time of cells in app-ward direction by command. */
+ uint64_t total_time_appward[CELL_COMMAND_MAX_ + 1];
+ /** Total waiting time of cells in exit-ward direction by command. */
+ uint64_t total_time_exitward[CELL_COMMAND_MAX_ + 1];
+} cell_stats_t;
+void sum_up_cell_stats_by_command(circuit_t *circ,
+ cell_stats_t *cell_stats);
+void append_cell_stats_by_command(smartlist_t *event_parts,
+ const char *key,
+ uint64_t *include_if_non_zero,
+ uint64_t *number_to_include);
+void format_cell_stats(char **event_string, circuit_t *circ,
+ cell_stats_t *cell_stats);
#endif
#endif
diff --git a/src/test/Makefile.nmake b/src/test/Makefile.nmake
index 562c8df..6479f9d 100644
--- a/src/test/Makefile.nmake
+++ b/src/test/Makefile.nmake
@@ -12,9 +12,9 @@ LIBS = ..\..\..\build-alpha\lib\libevent.lib \
crypt32.lib gdi32.lib user32.lib
TEST_OBJECTS = test.obj test_addr.obj test_containers.obj \
- test_crypto.obj test_data.obj test_dir.obj test_microdesc.obj \
- test_pt.obj test_util.obj test_config.obj test_cell_formats.obj \
- test_replay.obj test_introduce.obj tinytest.obj
+ test_controller_events.ogj test_crypto.obj test_data.obj test_dir.obj \
+ test_microdesc.obj test_pt.obj test_util.obj test_config.obj \
+ test_cell_formats.obj test_replay.obj test_introduce.obj tinytest.obj
tinytest.obj: ..\ext\tinytest.c
$(CC) $(CFLAGS) /D snprintf=_snprintf /c ..\ext\tinytest.c
diff --git a/src/test/include.am b/src/test/include.am
index 112d1a7..84a7643 100644
--- a/src/test/include.am
+++ b/src/test/include.am
@@ -16,6 +16,7 @@ src_test_test_SOURCES = \
src/test/test_addr.c \
src/test/test_cell_formats.c \
src/test/test_containers.c \
+ src/test/test_controller_events.c \
src/test/test_crypto.c \
src/test/test_data.c \
src/test/test_dir.c \
diff --git a/src/test/test.c b/src/test/test.c
index a9cf899..eec591a 100644
--- a/src/test/test.c
+++ b/src/test/test.c
@@ -2133,6 +2133,7 @@ extern struct testcase_t config_tests[];
extern struct testcase_t introduce_tests[];
extern struct testcase_t replaycache_tests[];
extern struct testcase_t cell_format_tests[];
+extern struct testcase_t controller_event_tests[];
static struct testgroup_t testgroups[] = {
{ "", test_array },
@@ -2148,6 +2149,7 @@ static struct testgroup_t testgroups[] = {
{ "config/", config_tests },
{ "replaycache/", replaycache_tests },
{ "introduce/", introduce_tests },
+ { "control/", controller_event_tests },
END_OF_GROUPS
};
diff --git a/src/test/test_controller_events.c b/src/test/test_controller_events.c
new file mode 100644
index 0000000..28ba4fa
--- /dev/null
+++ b/src/test/test_controller_events.c
@@ -0,0 +1,283 @@
+/* Copyright (c) 2013, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+#define CONNECTION_PRIVATE
+#define TOR_CHANNEL_INTERNAL_
+#define CONTROL_PRIVATE
+#include "or.h"
+#include "channel.h"
+#include "channeltls.h"
+#include "connection.h"
+#include "control.h"
+#include "test.h"
+
+static void
+help_test_bucket_note_empty(uint32_t expected_msec_since_midnight,
+ int tokens_before, size_t tokens_removed,
+ uint32_t msec_since_epoch)
+{
+ uint32_t timestamp_var = 0;
+ struct timeval tvnow;
+ tvnow.tv_sec = msec_since_epoch / 1000;
+ tvnow.tv_usec = (msec_since_epoch % 1000) * 1000;
+ connection_buckets_note_empty_ts(×tamp_var, tokens_before,
+ tokens_removed, tvnow);
+ tt_int_op(expected_msec_since_midnight, ==, timestamp_var);
+
+ done:
+ ;
+}
+
+static void
+test_cntev_bucket_note_empty(void *arg)
+{
+ (void)arg;
+
+ /* Two cases with nothing to note, because bucket was empty before;
+ * 86442200 == 1970-01-02 00:00:42.200000 */
+ help_test_bucket_note_empty(0, 0, 0, 86442200);
+ help_test_bucket_note_empty(0, -100, 100, 86442200);
+
+ /* Nothing to note, because bucket has not been emptied. */
+ help_test_bucket_note_empty(0, 101, 100, 86442200);
+
+ /* Bucket was emptied, note 42200 msec since midnight. */
+ help_test_bucket_note_empty(42200, 101, 101, 86442200);
+ help_test_bucket_note_empty(42200, 101, 102, 86442200);
+}
+
+static void
+test_cntev_bucket_millis_empty(void *arg)
+{
+ struct timeval tvnow;
+ (void)arg;
+
+ /* 1970-01-02 00:00:42.200000 */
+ tvnow.tv_sec = 86400 + 42;
+ tvnow.tv_usec = 200000;
+
+ /* Bucket has not been refilled. */
+ tt_int_op(0, ==, bucket_millis_empty(0, 42120, 0, 100, tvnow));
+ tt_int_op(0, ==, bucket_millis_empty(-10, 42120, -10, 100, tvnow));
+
+ /* Bucket was not empty. */
+ tt_int_op(0, ==, bucket_millis_empty(10, 42120, 20, 100, tvnow));
+
+ /* Bucket has been emptied 80 msec ago and has just been refilled. */
+ tt_int_op(80, ==, bucket_millis_empty(-20, 42120, -10, 100, tvnow));
+ tt_int_op(80, ==, bucket_millis_empty(-10, 42120, 0, 100, tvnow));
+ tt_int_op(80, ==, bucket_millis_empty(0, 42120, 10, 100, tvnow));
+
+ /* Bucket has been emptied 180 msec ago, last refill was 100 msec ago
+ * which was insufficient to make it positive, so cap msec at 100. */
+ tt_int_op(100, ==, bucket_millis_empty(0, 42020, 1, 100, tvnow));
+
+ /* 1970-01-02 00:00:00:050000 */
+ tvnow.tv_sec = 86400;
+ tvnow.tv_usec = 50000;
+
+ /* Last emptied 30 msec before midnight, tvnow is 50 msec after
+ * midnight, that's 80 msec in total. */
+ tt_int_op(80, ==, bucket_millis_empty(0, 86400000 - 30, 1, 100, tvnow));
+
+ done:
+ ;
+}
+
+static void
+add_testing_cell_stats_entry(circuit_t *circ, uint8_t command,
+ unsigned int waiting_time,
+ unsigned int removed, unsigned int exitward)
+{
+ testing_cell_stats_entry_t *ent = tor_malloc_zero(
+ sizeof(testing_cell_stats_entry_t));
+ ent->command = command;
+ ent->waiting_time = waiting_time;
+ ent->removed = removed;
+ ent->exitward = exitward;
+ if (!circ->testing_cell_stats)
+ circ->testing_cell_stats = smartlist_new();
+ smartlist_add(circ->testing_cell_stats, ent);
+}
+
+static void
+test_cntev_sum_up_cell_stats(void *arg)
+{
+ or_circuit_t *or_circ;
+ circuit_t *circ;
+ cell_stats_t *cell_stats;
+ (void)arg;
+
+ or_circ = tor_malloc_zero(sizeof(or_circuit_t));
+ or_circ->base_.magic = OR_CIRCUIT_MAGIC;
+ or_circ->base_.purpose = CIRCUIT_PURPOSE_OR;
+ circ = TO_CIRCUIT(or_circ);
+
+ /* A single RELAY cell was added to the appward queue. */
+ cell_stats = tor_malloc_zero(sizeof(cell_stats_t));
+ add_testing_cell_stats_entry(circ, CELL_RELAY, 0, 0, 0);
+ sum_up_cell_stats_by_command(circ, cell_stats);
+ tt_int_op(1, ==, cell_stats->added_cells_appward[CELL_RELAY]);
+
+ /* A single RELAY cell was added to the exitward queue. */
+ add_testing_cell_stats_entry(circ, CELL_RELAY, 0, 0, 1);
+ sum_up_cell_stats_by_command(circ, cell_stats);
+ tt_int_op(1, ==, cell_stats->added_cells_exitward[CELL_RELAY]);
+
+ /* A single RELAY cell was removed from the appward queue where it spent
+ * 20 msec. */
+ add_testing_cell_stats_entry(circ, CELL_RELAY, 2, 1, 0);
+ sum_up_cell_stats_by_command(circ, cell_stats);
+ tt_int_op(20, ==, cell_stats->total_time_appward[CELL_RELAY]);
+ tt_int_op(1, ==, cell_stats->removed_cells_appward[CELL_RELAY]);
+
+ /* A single RELAY cell was removed from the exitward queue where it
+ * spent 30 msec. */
+ add_testing_cell_stats_entry(circ, CELL_RELAY, 3, 1, 1);
+ sum_up_cell_stats_by_command(circ, cell_stats);
+ tt_int_op(30, ==, cell_stats->total_time_exitward[CELL_RELAY]);
+ tt_int_op(1, ==, cell_stats->removed_cells_exitward[CELL_RELAY]);
+
+ done:
+ ;
+}
+
+static void
+test_cntev_append_cell_stats(void *arg)
+{
+ smartlist_t *event_parts;
+ const char *key = "Z";
+ uint64_t include_if_non_zero[CELL_COMMAND_MAX_ + 1],
+ number_to_include[CELL_COMMAND_MAX_ + 1];
+ (void)arg;
+
+ event_parts = smartlist_new();
+ memset(include_if_non_zero, 0,
+ (CELL_COMMAND_MAX_ + 1) * sizeof(uint64_t));
+ memset(number_to_include, 0,
+ (CELL_COMMAND_MAX_ + 1) * sizeof(uint64_t));
+
+ /* All array entries empty. */
+ append_cell_stats_by_command(event_parts, key, include_if_non_zero,
+ number_to_include);
+ tt_int_op(0, ==, smartlist_len(event_parts));
+
+ /* There's a RELAY cell to include, but the corresponding field in
+ * include_if_non_zero is still zero. */
+ number_to_include[CELL_RELAY] = 1;
+ append_cell_stats_by_command(event_parts, key, include_if_non_zero,
+ number_to_include);
+ tt_int_op(0, ==, smartlist_len(event_parts));
+
+ /* Now include single RELAY cell. */
+ include_if_non_zero[CELL_RELAY] = 2;
+ append_cell_stats_by_command(event_parts, key, include_if_non_zero,
+ number_to_include);
+ tt_str_op("Z=relay:1", ==, smartlist_pop_last(event_parts));
+
+ /* Add four CREATE cells. */
+ include_if_non_zero[CELL_CREATE] = 3;
+ number_to_include[CELL_CREATE] = 4;
+ append_cell_stats_by_command(event_parts, key, include_if_non_zero,
+ number_to_include);
+ tt_str_op("Z=create:4,relay:1", ==, smartlist_pop_last(event_parts));
+
+ done:
+ ;
+}
+
+static void
+test_cntev_format_cell_stats(void *arg)
+{
+ char *event_string;
+ origin_circuit_t *ocirc;
+ or_circuit_t *or_circ;
+ cell_stats_t *cell_stats;
+ channel_tls_t *n_chan, *p_chan;
+ (void)arg;
+
+ n_chan = tor_malloc_zero(sizeof(channel_tls_t));
+ n_chan->base_.global_identifier = 1;
+
+ ocirc = tor_malloc_zero(sizeof(origin_circuit_t));
+ ocirc->base_.magic = ORIGIN_CIRCUIT_MAGIC;
+ ocirc->base_.purpose = CIRCUIT_PURPOSE_C_GENERAL;
+ ocirc->global_identifier = 2;
+ ocirc->base_.n_circ_id = 3;
+ ocirc->base_.n_chan = &(n_chan->base_);
+
+ /* Origin circuit was completely idle. */
+ cell_stats = tor_malloc_zero(sizeof(cell_stats_t));
+ format_cell_stats(&event_string, TO_CIRCUIT(ocirc), cell_stats);
+ tt_str_op("ID=2 OutboundQueue=3 OutboundConn=1", ==, event_string);
+
+ /* Origin circuit had 4 RELAY cells added to its exitward queue. */
+ cell_stats->added_cells_exitward[CELL_RELAY] = 4;
+ format_cell_stats(&event_string, TO_CIRCUIT(ocirc), cell_stats);
+ tt_str_op("ID=2 OutboundQueue=3 OutboundConn=1 OutboundAdded=relay:4",
+ ==, event_string);
+
+ /* Origin circuit also had 5 CREATE2 cells added to its exitward
+ * queue. */
+ cell_stats->added_cells_exitward[CELL_CREATE2] = 5;
+ format_cell_stats(&event_string, TO_CIRCUIT(ocirc), cell_stats);
+ tt_str_op("ID=2 OutboundQueue=3 OutboundConn=1 OutboundAdded=relay:4,"
+ "create2:5", ==, event_string);
+
+ /* Origin circuit also had 7 RELAY cells removed from its exitward queue
+ * which together spent 6 msec in the queue. */
+ cell_stats->total_time_exitward[CELL_RELAY] = 6;
+ cell_stats->removed_cells_exitward[CELL_RELAY] = 7;
+ format_cell_stats(&event_string, TO_CIRCUIT(ocirc), cell_stats);
+ tt_str_op("ID=2 OutboundQueue=3 OutboundConn=1 OutboundAdded=relay:4,"
+ "create2:5 OutboundRemoved=relay:7 OutboundTime=relay:6",
+ ==, event_string);
+
+ p_chan = tor_malloc_zero(sizeof(channel_tls_t));
+ p_chan->base_.global_identifier = 2;
+
+ or_circ = tor_malloc_zero(sizeof(or_circuit_t));
+ or_circ->base_.magic = OR_CIRCUIT_MAGIC;
+ or_circ->base_.purpose = CIRCUIT_PURPOSE_OR;
+ or_circ->p_circ_id = 8;
+ or_circ->p_chan = &(p_chan->base_);
+ or_circ->base_.n_circ_id = 9;
+ or_circ->base_.n_chan = &(n_chan->base_);
+
+ /* OR circuit was idle. */
+ cell_stats = tor_malloc_zero(sizeof(cell_stats_t));
+ format_cell_stats(&event_string, TO_CIRCUIT(or_circ), cell_stats);
+ tt_str_op("InboundQueue=8 InboundConn=2 OutboundQueue=9 OutboundConn=1",
+ ==, event_string);
+
+ /* OR circuit had 3 RELAY cells added to its appward queue. */
+ cell_stats->added_cells_appward[CELL_RELAY] = 3;
+ format_cell_stats(&event_string, TO_CIRCUIT(or_circ), cell_stats);
+ tt_str_op("InboundQueue=8 InboundConn=2 InboundAdded=relay:3 "
+ "OutboundQueue=9 OutboundConn=1", ==, event_string);
+
+ /* OR circuit had 7 RELAY cells removed from its appward queue which
+ * together spent 6 msec in the queue. */
+ cell_stats->total_time_appward[CELL_RELAY] = 6;
+ cell_stats->removed_cells_appward[CELL_RELAY] = 7;
+ format_cell_stats(&event_string, TO_CIRCUIT(or_circ), cell_stats);
+ tt_str_op("InboundQueue=8 InboundConn=2 InboundAdded=relay:3 "
+ "InboundRemoved=relay:7 InboundTime=relay:6 "
+ "OutboundQueue=9 OutboundConn=1", ==, event_string);
+
+ done:
+ ;
+}
+
+#define TEST(name, flags) \
+ { #name, test_cntev_ ## name, flags, 0, NULL }
+
+struct testcase_t controller_event_tests[] = {
+ TEST(bucket_note_empty, 0),
+ TEST(bucket_millis_empty, 0),
+ TEST(sum_up_cell_stats, 0),
+ TEST(append_cell_stats, 0),
+ TEST(format_cell_stats, 0),
+ END_OF_TESTCASES
+};
+
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