forked from OpenHarmony / docs

加入 Gitee

与超过 1200万开发者一起发现、参与优秀开源项目，私有仓库也完全免费：）

克隆/下载

hdf_log-h.md 4.65 KB

# hdf\_log.h<a name="ZH-CN_TOPIC_0000001054918123"></a>

## **Overview**<a name="section1518799958093525"></a>

**Related Modules:**

[DriverUtils](DriverUtils.md)

**Description:**

Declares log printing functions of the driver module. This module provides functions for printing logs at the verbose, debug, information, warning, and error levels.

To use these functions, you must define  **HDF\_LOG\_TAG**, for example, \#define HDF\_LOG\_TAG evt.

**Since:**

1.0

**Version:**

1.0

## **Summary**<a name="section1710176096093525"></a>

## Macros<a name="define-members"></a>

<a name="table474190013093525"></a>
<table><thead align="left"><tr id="row1540299786093525"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p1375405289093525"><a name="p1375405289093525"></a><a name="p1375405289093525"></a>Macro Name and Value</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p831903220093525"><a name="p831903220093525"></a><a name="p831903220093525"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row2016145204093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1567601529093525"><a name="p1567601529093525"></a><a name="p1567601529093525"></a><a href="DriverUtils.md#ga7e862bda9f0b95d1628f6f62598f1f42">LOG_TAG_MARK_EXTEND</a>(HDF_TAG)&nbsp;&nbsp;&nbsp;#HDF_TAG</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 ">&nbsp;</td>
</tr>
<tr id="row2052661276093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1717711828093525"><a name="p1717711828093525"></a><a name="p1717711828093525"></a><a href="DriverUtils.md#ga4abebfca1aaeb8125f85800425caf304">HDF_LOGV</a>(fmt, arg...)&nbsp;&nbsp;&nbsp;<a href="zh-cn_topic_0000001054799545.md#ga98631211a4a8aee62f572375d5b637be">printf</a>("[HDF:V/" LOG_TAG "]" fmt "\r\n", ##arg)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1201297239093525"><a name="p1201297239093525"></a><a name="p1201297239093525"></a>Prints logs at the verbose level. </p>
</td>
</tr>
<tr id="row1026030118093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1571404864093525"><a name="p1571404864093525"></a><a name="p1571404864093525"></a><a href="DriverUtils.md#gaa0411582f697619cdb045ae61ac42539">HDF_LOGD</a>(fmt, arg...)&nbsp;&nbsp;&nbsp;<a href="zh-cn_topic_0000001054799545.md#ga98631211a4a8aee62f572375d5b637be">printf</a>("[HDF:D/" LOG_TAG "]" fmt "\r\n", ##arg)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1903141057093525"><a name="p1903141057093525"></a><a name="p1903141057093525"></a>Prints logs at the debug level. </p>
</td>
</tr>
<tr id="row1310544128093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p656632918093525"><a name="p656632918093525"></a><a name="p656632918093525"></a><a href="DriverUtils.md#ga369d56841d17e6908fc6885fcb814b80">HDF_LOGI</a>(fmt, arg...)&nbsp;&nbsp;&nbsp;<a href="zh-cn_topic_0000001054799545.md#ga98631211a4a8aee62f572375d5b637be">printf</a>("[HDF:I/" LOG_TAG "]" fmt "\r\n", ##arg)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p2142371427093525"><a name="p2142371427093525"></a><a name="p2142371427093525"></a>Prints logs at the information level. </p>
</td>
</tr>
<tr id="row1863126406093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p256499208093525"><a name="p256499208093525"></a><a name="p256499208093525"></a><a href="DriverUtils.md#ga72f232dade88b85aff2d8c0e42b82df0">HDF_LOGW</a>(fmt, arg...)&nbsp;&nbsp;&nbsp;<a href="zh-cn_topic_0000001054799545.md#ga98631211a4a8aee62f572375d5b637be">printf</a>("[HDF:W/" LOG_TAG "]" fmt "\r\n", ##arg)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p508076966093525"><a name="p508076966093525"></a><a name="p508076966093525"></a>Prints logs at the warning level. </p>
</td>
</tr>
<tr id="row1258814462093525"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1898504596093525"><a name="p1898504596093525"></a><a name="p1898504596093525"></a><a href="DriverUtils.md#gaacd0eb778948960a7f97af155287ce8c">HDF_LOGE</a>(fmt, arg...)&nbsp;&nbsp;&nbsp;<a href="zh-cn_topic_0000001054799545.md#ga98631211a4a8aee62f572375d5b637be">printf</a>("[HDF:E/" LOG_TAG "]" fmt "\r\n", ##arg)</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1443792214093525"><a name="p1443792214093525"></a><a name="p1443792214093525"></a>Prints logs at the error level. </p>
</td>
</tr>
</tbody>
</table>

一键复制编辑原始数据按行查看历史

提交于 2020-09-08 10:08 . add OpenHarmony 1.0 baseline

hdf_log.h

Overview

Related Modules:

Description:

Declares log printing functions of the driver module. This module provides functions for printing logs at the verbose, debug, information, warning, and error levels.

To use these functions, you must define HDF_LOG_TAG, for example, #define HDF_LOG_TAG evt.

Since:

1.0

Version:

1.0

Summary

Macros

Macro Name and Value	Description
LOG_TAG_MARK_EXTEND(HDF_TAG) #HDF_TAG
HDF_LOGV(fmt, arg...) printf("[HDF:V/" LOG_TAG "]" fmt "\r\n", ##arg)	Prints logs at the verbose level.
HDF_LOGD(fmt, arg...) printf("[HDF:D/" LOG_TAG "]" fmt "\r\n", ##arg)	Prints logs at the debug level.
HDF_LOGI(fmt, arg...) printf("[HDF:I/" LOG_TAG "]" fmt "\r\n", ##arg)	Prints logs at the information level.
HDF_LOGW(fmt, arg...) printf("[HDF:W/" LOG_TAG "]" fmt "\r\n", ##arg)	Prints logs at the warning level.
HDF_LOGE(fmt, arg...) printf("[HDF:E/" LOG_TAG "]" fmt "\r\n", ##arg)	Prints logs at the error level.

1

https://gitee.com/dreaminghell/docs.git

git@gitee.com:dreaminghell/docs.git

dreaminghell

docs

docs

master