diff mbox series

[v5,5/6] eal: allow user to set default log stream before init

Message ID 20230628175827.471909-6-stephen@networkplumber.org (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series Logging related patches |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Stephen Hemminger June 28, 2023, 5:58 p.m. UTC 
  It is useful for application to be able to set the default log
stream before call rte_eal_init(). This makes all messages go
to the new default.

For example, to skip using syslog; just doing
	rte_log_set_default(stderr);

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 lib/eal/common/eal_common_log.c | 6 ++++++
 lib/eal/common/eal_log.h        | 1 +
 lib/eal/unix/eal_log.c          | 4 ++++
 3 files changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/lib/eal/common/eal_common_log.c b/lib/eal/common/eal_common_log.c
index bd7b188ceb4a..9b158c201205 100644
--- a/lib/eal/common/eal_common_log.c
+++ b/lib/eal/common/eal_common_log.c
@@ -535,6 +535,12 @@  eal_log_set_default(FILE *default_log)
 #endif
 }
 
+FILE *
+eal_log_get_default(void)
+{
+	return default_log_stream;
+}
+
 /*
  * Called by eal_cleanup
  */
diff --git a/lib/eal/common/eal_log.h b/lib/eal/common/eal_log.h
index 31dc489350f6..268c2a264382 100644
--- a/lib/eal/common/eal_log.h
+++ b/lib/eal/common/eal_log.h
@@ -22,6 +22,7 @@  int eal_log_level_parse(int argc, char * const argv[]);
  * Determine where log data is written when no call to rte_openlog_stream.
  */
 void eal_log_set_default(FILE *default_log);
+FILE *eal_log_get_default(void);
 
 /*
  * Save a log option for later.
diff --git a/lib/eal/unix/eal_log.c b/lib/eal/unix/eal_log.c
index 7921417b050a..3bfe5853095f 100644
--- a/lib/eal/unix/eal_log.c
+++ b/lib/eal/unix/eal_log.c
@@ -113,6 +113,10 @@  eal_log_init(const char *id, int facility)
 {
 	FILE *log_stream;
 
+	/* has user has already setup a log stream */
+	if (eal_log_get_default())
+		return 0;
+
 	log_stream = fopencookie(NULL, "w+", console_log_func);
 	if (log_stream == NULL)
 		return -1;