[sheepdog] [PATCH v2 2/7] logger: add a helper to get the thread name

[Liu Yuan]

From: Liu Yuan <tailai.ly at taobao.com>

This patch prepare for trace patch set.

Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
---
 include/logger.h |    1 +
 lib/logger.c     |   10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/logger.h b/include/logger.h
index 580c5de..019d0d8 100644
--- a/include/logger.h
+++ b/include/logger.h
@@ -26,6 +26,7 @@ extern void dump_logmsg(void *);
 extern void log_write(int prio, const char *func, int line, const char *fmt, ...)
 	__attribute__ ((format (printf, 4, 5)));
 extern void set_thread_name(const char *name, int idx);
+extern void get_thread_name(char *name);
 
 /*
 + * sheep log priorities, comliant with syslog spec
diff --git a/lib/logger.c b/lib/logger.c
index 154cb6b..380d65c 100644
--- a/lib/logger.c
+++ b/lib/logger.c
@@ -571,3 +571,13 @@ notrace void set_thread_name(const char *name, int idx)
 	worker_name = name;
 	worker_idx = idx;
 }
+
+notrace void get_thread_name(char *name)
+{
+	if (worker_name && worker_idx)
+		sprintf(name, "%s %d", worker_name, worker_idx);
+	else if (worker_name)
+		sprintf(name, "%s", worker_name);
+	else
+		sprintf(name, "%s", "main");
+}
-- 
1.7.10.2