harmony 鸿蒙HiTraceId
HiTraceId
Overview
Defines a HiTraceId instance.
System capability: SystemCapability.HiviewDFX.HiTrace
Since: 12
Related module: Hitrace
Header file: trace.h
Summary
Member Variables
A little-endian HiTraceId consists of the following fields in sequence:
| Field | Number of Bits | Description |
|---|---|---|
| uint64_t valid | 1 | Whether HiTraceId is valid. |
| uint64_t ver | 3 | Version number of HiTraceId. |
| uint64_t chainId | 60 | Chain ID of HiTraceId. |
| uint64_t flags | 12 | Flag of HiTraceId. |
| uint64_t spanId | 26 | Span ID of HiTraceId. |
| uint64_t parentSpanId | 26 | Parent span ID of HiTraceId. |
A big-endian HiTraceId consists of the following fields in sequence:
| Field | Number of Bits | Description |
|---|---|---|
| uint64_t chainId | 60 | Chain ID of HiTraceId. |
| uint64_t ver | 3 | Version number of HiTraceId. |
| uint64_t valid | 1 | Whether HiTraceId is valid. |
| uint64_t parentSpanId | 26 | Parent span ID of HiTraceId. |
| uint64_t spanId | 26 | Span ID of HiTraceId. |
| uint64_t flags | 12 | Flag of HiTraceId. |
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