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sinks: android: handle when message is not loggable (#2801)

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Android logger (since API 30) checks the per-tag property `log.tag.<tag>` to determine if a log message is loggable. See https://developer.android.com/ndk/reference/group/logging#__android_log_is_loggable . For example, `__android_log_buf_write` for a VERBOSE message will call `__android_log_is_loggable` and return `-EPERM` if the log message will not be printed because `log.tag.<tag>` is set to `INFO`.

Instead of erroring with the following error message, the Android sink should handle `-EPERM`. It is not an error to disable a log via the run-time property.

```
[*** LOG ERROR #0001 ***] [2023-06-29 00:50:26] [logcat] logging to Android failed: Unknown error -1 [/path/to/file.cpp(123)]
```
This commit is contained in:
Lucas Rangit MAGASWERAN 2023-07-06 23:24:06 +02:00 committed by GitHub
parent 4b8ff51a29
commit 01b3724c48
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4
include/spdlog/sinks/android_sink.h
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@ -56,6 +56,10 @@ protected:
// See system/core/liblog/logger_write.c for explanation of return value
int ret = android_log(priority, tag_.c_str(), msg_output);
if (ret == -EPERM)
{
return; // !__android_log_is_loggable
}
int retry_count = 0;
while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
{