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/*
Copyright (C) 2023 Sutou Kouhei <kou@clear-code.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "grn_ctx_impl.h"
#include "grn_vector.h"
#include <chrono>
namespace {
uint64_t
now_nanoseconds()
{
return std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::steady_clock::now().time_since_epoch())
.count();
}
}; // namespace
extern "C" {
void
grn_ctx_trace_log_enable(grn_ctx *ctx)
{
if (grn_ctx_trace_log_is_enabled(ctx)) {
grn_ctx_trace_log_disable(ctx);
}
ctx->impl->trace_log.start_time = now_nanoseconds();
GRN_UINT16_PUT(ctx, &(ctx->impl->trace_log.sequence_stack), 0);
}
void
grn_ctx_trace_log_disable(grn_ctx *ctx)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
ctx->impl->trace_log.start_time = 0;
ctx->impl->trace_log.current_depth = 0;
GRN_BULK_REWIND(&(ctx->impl->trace_log.depths));
GRN_BULK_REWIND(&(ctx->impl->trace_log.sequence_stack));
GRN_BULK_REWIND(&(ctx->impl->trace_log.sequences));
GRN_BULK_REWIND(&(ctx->impl->trace_log.names));
GRN_BULK_REWIND(&(ctx->impl->trace_log.values));
GRN_BULK_REWIND(&(ctx->impl->trace_log.elapsed_times));
}
void
grn_ctx_trace_log_dump(grn_ctx *ctx, grn_ctx *dump_ctx, grn_obj *output)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
grn_text_benc(dump_ctx, output, 0);
return;
}
auto depths = &(ctx->impl->trace_log.depths);
auto sequences = &(ctx->impl->trace_log.sequences);
auto names = &(ctx->impl->trace_log.names);
auto values = &(ctx->impl->trace_log.values);
auto elapsed_times = &(ctx->impl->trace_log.elapsed_times);
size_t i;
size_t n = GRN_UINT16_VECTOR_SIZE(depths);
grn_text_benc(dump_ctx, output, n);
for (i = 0; i < n; ++i) {
grn_text_benc(dump_ctx, output, GRN_UINT16_VALUE_AT(depths, i));
}
for (i = 0; i < n; ++i) {
grn_text_benc(dump_ctx, output, GRN_UINT16_VALUE_AT(sequences, i));
}
grn_obj footer;
GRN_TEXT_INIT(&footer, 0);
auto body = grn_vector_pack(dump_ctx,
names,
0,
grn_vector_size(dump_ctx, names),
0,
output,
&footer);
GRN_TEXT_PUT(ctx, output, GRN_TEXT_VALUE(body), GRN_TEXT_LEN(body));
GRN_TEXT_PUT(ctx, output, GRN_TEXT_VALUE(&footer), GRN_TEXT_LEN(&footer));
GRN_BULK_REWIND(&footer);
body = grn_vector_pack(dump_ctx,
values,
0,
grn_vector_size(dump_ctx, values),
0,
output,
&footer);
GRN_TEXT_PUT(dump_ctx, output, GRN_TEXT_VALUE(body), GRN_TEXT_LEN(body));
GRN_TEXT_PUT(dump_ctx,
output,
GRN_TEXT_VALUE(&footer),
GRN_TEXT_LEN(&footer));
GRN_OBJ_FIN(ctx, &footer);
for (i = 0; i < n; ++i) {
uint64_t elapsed_time = GRN_UINT64_VALUE_AT(elapsed_times, i);
grn_text_benc(dump_ctx, output, (elapsed_time >> 32) & 0xffffffff);
grn_text_benc(dump_ctx, output, elapsed_time & 0xffffffff);
}
}
size_t
grn_ctx_trace_log_restore(grn_ctx *ctx, const uint8_t *data, size_t data_size)
{
auto start = data;
auto current = start;
auto end = current + data_size;
uint32_t n;
GRN_B_DEC(n, current);
if (n == 0) {
return current - start;
}
auto depths = &(ctx->impl->trace_log.depths);
auto sequences = &(ctx->impl->trace_log.sequences);
auto names = &(ctx->impl->trace_log.names);
auto values = &(ctx->impl->trace_log.values);
auto elapsed_times = &(ctx->impl->trace_log.elapsed_times);
uint32_t i;
for (i = 0; i < n; ++i) {
uint32_t depth;
GRN_B_DEC(depth, current);
GRN_UINT16_PUT(ctx, depths, depth);
}
for (i = 0; i < n; ++i) {
uint32_t sequence;
GRN_B_DEC(sequence, current);
GRN_UINT16_PUT(ctx, sequences, sequence);
}
uint32_t used_size;
grn_vector_unpack(ctx, names, current, end - current, 0, &used_size);
current += used_size;
grn_vector_unpack(ctx, values, current, end - current, 0, &used_size);
current += used_size;
for (i = 0; i < n; ++i) {
uint32_t elapsed_time_upper;
GRN_B_DEC(elapsed_time_upper, current);
uint32_t elapsed_time_lower;
GRN_B_DEC(elapsed_time_lower, current);
GRN_UINT64_PUT(ctx,
elapsed_times,
(static_cast<uint64_t>(elapsed_time_upper) << 32) +
elapsed_time_lower);
}
if (!grn_ctx_trace_log_is_enabled(ctx)) {
GRN_BULK_REWIND(depths);
GRN_BULK_REWIND(sequences);
GRN_BULK_REWIND(names);
GRN_BULK_REWIND(values);
GRN_BULK_REWIND(elapsed_times);
}
return current - start;
}
uint16_t
grn_ctx_trace_log_get_current_depth(grn_ctx *ctx)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return 0;
}
return ctx->impl->trace_log.current_depth;
}
static inline void
grn_ctx_trace_log_push_common(grn_ctx *ctx)
{
GRN_UINT16_PUT(ctx, &(ctx->impl->trace_log.sequence_stack), 0);
}
void
grn_ctx_trace_log_push(grn_ctx *ctx)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
ctx->impl->trace_log.current_depth++;
grn_ctx_trace_log_push_common(ctx);
}
static inline void
grn_ctx_trace_log_pop_common(grn_ctx *ctx)
{
uint16_t sequence;
GRN_UINT16_POP(&(ctx->impl->trace_log.sequence_stack), sequence);
}
void
grn_ctx_trace_log_pop(grn_ctx *ctx)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
ctx->impl->trace_log.current_depth--;
grn_ctx_trace_log_pop_common(ctx);
}
void
grn_ctx_trace_log_set_current_depth(grn_ctx *ctx, uint16_t depth)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
if (depth == ctx->impl->trace_log.current_depth) {
return;
}
uint16_t i;
if (depth > ctx->impl->trace_log.current_depth) {
uint16_t n = depth - ctx->impl->trace_log.current_depth;
for (i = 0; i < n; i++) {
grn_ctx_trace_log_push_common(ctx);
}
} else {
uint16_t n = ctx->impl->trace_log.current_depth - depth;
for (i = 0; i < n; i++) {
grn_ctx_trace_log_pop_common(ctx);
}
}
ctx->impl->trace_log.current_depth = depth;
}
static void
grn_ctx_trace_log_emit_common(grn_ctx *ctx, const char *name)
{
uint64_t elapsed_time = now_nanoseconds() - ctx->impl->trace_log.start_time;
GRN_UINT16_PUT(ctx,
&(ctx->impl->trace_log.depths),
ctx->impl->trace_log.current_depth);
grn_obj *sequence_stack = &(ctx->impl->trace_log.sequence_stack);
uint16_t sequence =
GRN_UINT16_VALUE_AT(sequence_stack,
GRN_UINT16_VECTOR_SIZE(sequence_stack) - 1)++;
GRN_UINT16_PUT(ctx, &(ctx->impl->trace_log.sequences), sequence);
grn_vector_add_element_float(ctx,
&(ctx->impl->trace_log.names),
name,
strlen(name),
0.0,
GRN_DB_TEXT);
GRN_UINT64_PUT(ctx, &(ctx->impl->trace_log.elapsed_times), elapsed_time);
}
void
grn_ctx_trace_log_emit_string(grn_ctx *ctx,
const char *name,
const char *value,
size_t value_length)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
grn_ctx_trace_log_emit_common(ctx, name);
grn_vector_add_element_float(ctx,
&(ctx->impl->trace_log.values),
value,
value_length,
0.0,
GRN_DB_TEXT);
}
void
grn_ctx_trace_log_emit_cstring(grn_ctx *ctx,
const char *name,
const char *value)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
grn_ctx_trace_log_emit_string(ctx, name, value, strlen(value));
}
void
grn_ctx_trace_log_emit_uint32(grn_ctx *ctx, const char *name, uint32_t n)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
grn_ctx_trace_log_emit_common(ctx, name);
grn_vector_add_element_float(ctx,
&(ctx->impl->trace_log.values),
(const char *)(&n),
sizeof(n),
0.0,
GRN_DB_UINT32);
}
void
grn_ctx_trace_log_emit_record_key(grn_ctx *ctx,
const char *name,
grn_obj *table,
grn_id id)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
char key[GRN_TABLE_MAX_KEY_SIZE];
int key_size;
key_size = grn_table_get_key(ctx, table, id, key, GRN_TABLE_MAX_KEY_SIZE);
if (key_size == 0) {
return;
}
/* TODO: Support non ShortText key */
grn_ctx_trace_log_emit_string(ctx, name, key, key_size);
}
void
grn_ctx_trace_log_emit_object(grn_ctx *ctx, const char *name, grn_obj *object)
{
if (!grn_ctx_trace_log_is_enabled(ctx)) {
return;
}
grn_obj inspected;
GRN_TEXT_INIT(&inspected, 0);
grn_inspect(ctx, &inspected, object);
grn_ctx_trace_log_emit_string(ctx,
name,
GRN_TEXT_VALUE(&inspected),
GRN_TEXT_LEN(&inspected));
GRN_OBJ_FIN(ctx, &inspected);
}
}
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