Comments (7)
取决于数据库的设置,设置为滚动保存时,会覆盖最早的,否则就提示插入失败了,需要用户手动清空数据库
详见 control API https://github.com/armink/FlashDB/blob/master/src/fdb_tsdb.c#L671
from flashdb.
谢谢,请问这个软件有详细的使用说明书吗?
from flashdb.
请问,fdb_tsl_query_count(fdb_tsdb_t db, fdb_time_t from, fdb_time_t to, fdb_tsl_status_t status),这个函数中,fdb_tsl_status_t status主要做什么作用?
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我看说明上修改状态:
NOTE: The actions to modify the state must be in order.
* FDB_TSL_WRITE -> FDB_TSL_USER_STATUS1 -> FDB_TSL_DELETED -> FDB_TSL_USER_STATUS2
这些状态位,必须顺序修改吗?
from flashdb.
更多的文档在准备中,可以先看一下 sample 里的示例,快速学习一下
from flashdb.
谢谢!正在阅读源代码
from flashdb.
TSDB 启用滚动写入,当可用扇区写满的时候,是不是最早的一整个扇区的数据都会被清除,而不是一条一条清除?
from flashdb.
Related Issues (20)
- 移植后norlfash的默认配置参数无法写入成功,请问下可能是什么原因? HOT 1
- Question: any reason to check that new entry timestamp is newer than previous? HOT 4
- 关于默认参数表写入超过48字节的字符型kv引发的问题 HOT 3
- 现有迭代器函数很难覆盖更多应用,一些新迭代器函数的实现探讨 HOT 1
- flashdb日志写满判断 HOT 2
- fal_flash_stm32f4.c中stm32_get_sector函数中的Address是否应替换为addr
- 关于TSDB存满之后的问题,望作者大大解答呀
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- 2.1版本初始化KVDB时重复上锁 HOT 5
- FlashDB 中tsdb如何实现log存储,需要用easylogger配合吗?
- [FlashDB][tsl][log] Error: this TSL (0x004002E8) size (724249387) is out of bound.remain = 3972857
- 出现crc32 failed, 测试程序boot_count总是读取失败, 但是测试程序temp的read/write是正常的 HOT 2
- KVDB在写满后再次写入失败,需要写入第二次 HOT 1
- 请教 KVDB 掉电异常后的恢复方法
- 测试tsdb连续保存累计数达一定数量后出现前面部分数据丢失的现象 HOT 2
- 用文件作为存储后端,有锁首次初始化时,_fdb_kv_load 中调用 fdb_kv_set_default 死锁 HOT 2
- 老化擦写Flash的KV后,读取一个不存在的KV或者写一个不存在的KV,Flash耗时长
- check the current timestamp, MUST more than the last save timestamp HOT 4
- 是否支持STM32G0B1RCT6 HOT 6
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from flashdb.