Feng Li [off-list ref] 于2021年2月6日周六 上午12:54写道：

Stephen Hemminger [off-list ref] 于2021年2月6日周六 上午12:11写道：

quoted

On Fri, 5 Feb 2021 12:55:48 +0100
David Marchand [off-list ref] wrote:

quoted

On Fri, Feb 5, 2021 at 12:25 PM Li Feng [off-list ref] wrote:

quoted

Currently, the dpdk log is out to stdout/stderr and syslog.
We should support to output the log to another please, e.g. file or
glog.

Why not use rte_openlog_stream() / rte_log_get_stream() ?

Agree, I have used rte_openlog_stream several times to do this.

As Dmitry Kozlyuk said, FILE* is convenient for the C/libc, but not
for other languages.
C++ standard IO stream is the case.

The usage is like this:
| +static ssize_t eal_log_func(void* c, const char* buf, size_t size) {
| +    int glog_level = google::GLOG_INFO;
| +    (void)c;
| +    google::LogMessage(__FILE__, __LINE__, glog_level).stream()
| +        << "[DPDK/" << __FUNCTION__ << "] " << std::string(buf, size);
| +    return 0;
| +}