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Move small part of KPHP tracing functionality into runtime-common/std…
…lib (#1132)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| // Compiler for PHP (aka KPHP) | ||
| // Copyright (c) 2024 LLC «V Kontakte» | ||
| // Distributed under the GPL v3 License, see LICENSE.notice.txt | ||
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| #pragma once | ||
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| #include <cstdint> | ||
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| #include "common/mixin/not_copyable.h" | ||
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| namespace kphp_tracing { | ||
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| struct TracingContext final : private vk::not_copyable { | ||
| // cur_trace_level is level of tracing for current php script | ||
| // -1 - not inited, disabled (on php script finish, it's reset to -1) | ||
| // 0 - inited, but turned off | ||
| // (binlog is not written, on_rpc_query_send() and other "callbacks" are not called) | ||
| // 1 - turned on, this php script is traced in a regular mode | ||
| // (binlog is written, and when the script finishes, it's either flushed to a file or dismissed) | ||
| // 2 - turned on in advanced mode | ||
| // (same as 1, but more events with more details are written to binlog, significant overhead) | ||
| int32_t cur_trace_level{-1}; | ||
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| static TracingContext &get() noexcept; | ||
| }; | ||
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| } // namespace kphp_tracing |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // Compiler for PHP (aka KPHP) | ||
| // Copyright (c) 2024 LLC «V Kontakte» | ||
| // Distributed under the GPL v3 License, see LICENSE.notice.txt | ||
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| #pragma once | ||
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| #include "runtime-common/stdlib/tracing/tracing-context.h" | ||
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| namespace kphp_tracing { | ||
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| inline bool is_turned_on() { | ||
| return TracingContext::get().cur_trace_level >= 1; | ||
| } | ||
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| } // namespace kphp_tracing |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // Compiler for PHP (aka KPHP) | ||
| // Copyright (c) 2024 LLC «V Kontakte» | ||
| // Distributed under the GPL v3 License, see LICENSE.notice.txt | ||
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| #pragma once | ||
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| #include <cstdint> | ||
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| #include "common/wrappers/likely.h" | ||
| #include "runtime-common/stdlib/tracing/tracing-context.h" | ||
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| namespace kphp_tracing { | ||
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| // see comments about `@kphp-tracing aggregate` | ||
| enum class BuiltinFuncID : int { | ||
| _max_user_defined_functions = 64000, // and 1.5k for built-in functions (16 bits total) | ||
| _max_user_defined_aggregate = 24, // and 7 for built-in aggregates (5 bits total) | ||
| _shift_for_branch = 16, | ||
| _shift_for_aggregate = 18, | ||
| _shift_for_reserved = 23, | ||
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| preg_match = _max_user_defined_functions + 1, | ||
| preg_match_all, | ||
| preg_split, | ||
| preg_replace, | ||
| preg_replace_callback, | ||
| exec, | ||
| system, | ||
| passthru, | ||
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| branch_regex_needs_compilation = 1, | ||
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| aggregate_regexp_functions = (_max_user_defined_aggregate + 1) << _shift_for_aggregate, | ||
| }; | ||
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| } // namespace kphp_tracing | ||
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| // function calls: autogen from `@kphp-tracing aggregate` | ||
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| class KphpTracingAggregateGuard { | ||
| int32_t func_call_mask{}; | ||
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| void on_started(int32_t func_call_mask) noexcept; | ||
| void on_enter_branch(int32_t branch_num) const noexcept; | ||
| void on_finished() const noexcept; | ||
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| public: | ||
| KphpTracingAggregateGuard() noexcept = default; | ||
| KphpTracingAggregateGuard(const KphpTracingAggregateGuard &) = delete; | ||
| KphpTracingAggregateGuard &operator=(const KphpTracingAggregateGuard &) = delete; | ||
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| void start(int32_t call_mask) { | ||
| if (unlikely(kphp_tracing::TracingContext::get().cur_trace_level >= 2)) { | ||
| on_started(call_mask); | ||
| } | ||
| } | ||
| explicit KphpTracingAggregateGuard(kphp_tracing::BuiltinFuncID func_id, kphp_tracing::BuiltinFuncID aggregate_bits) { | ||
| if (unlikely(kphp_tracing::TracingContext::get().cur_trace_level >= 2)) { | ||
| on_started(static_cast<int>(func_id) | static_cast<int>(aggregate_bits)); | ||
| } | ||
| } | ||
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| void enter_branch(int32_t branch_num) { | ||
| // codegenerated instead of kphp_tracing_func_enter_branch(N) | ||
| if (unlikely(kphp_tracing::TracingContext::get().cur_trace_level >= 2)) { | ||
| on_enter_branch(branch_num); | ||
| } | ||
| } | ||
| void enter_branch(kphp_tracing::BuiltinFuncID branch_num) { | ||
| if (unlikely(kphp_tracing::TracingContext::get().cur_trace_level >= 2)) { | ||
| on_enter_branch(static_cast<int>(branch_num)); | ||
| } | ||
| } | ||
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| ~KphpTracingAggregateGuard() { | ||
| if (unlikely(kphp_tracing::TracingContext::get().cur_trace_level >= 2)) { | ||
| on_finished(); | ||
| } | ||
| } | ||
| }; |
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