diff mbox series

[v7,01/32] eal: introduce API for getting thread name

Message ID 20200422190349.3768487-2-jerinj@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: David Marchand
Headers
Series DPDK Trace support |

Checks

Context Check Description
ci/checkpatch warning coding style issues
ci/Intel-compilation success Compilation OK
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-nxp-Performance success Performance Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-testing fail Testing issues

Commit Message

Jerin Jacob Kollanukkaran April 22, 2020, 7:03 p.m. UTC 
  From: Jerin Jacob <jerinj@marvell.com>

Introduce rte_thread_getname() API to get the thread name
and implement it for Linux and FreeBSD.

FreeBSD does not support getting the thread name.

One of the consumers of this API will be the trace subsystem where
it used as an informative purpose.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
 lib/librte_eal/freebsd/eal_thread.c |  9 +++++++++
 lib/librte_eal/include/rte_lcore.h  | 17 +++++++++++++++++
 lib/librte_eal/linux/eal_thread.c   | 15 +++++++++++++++
 lib/librte_eal/rte_eal_version.map  |  1 +
 4 files changed, 42 insertions(+)
diff mbox series

Patch

diff --git a/lib/librte_eal/freebsd/eal_thread.c b/lib/librte_eal/freebsd/eal_thread.c
index f21eddd93..d802c1d2e 100644
--- a/lib/librte_eal/freebsd/eal_thread.c
+++ b/lib/librte_eal/freebsd/eal_thread.c
@@ -175,3 +175,12 @@  int rte_thread_setname(pthread_t id, const char *name)
 	pthread_set_name_np(id, name);
 	return 0;
 }
+
+int rte_thread_getname(pthread_t id, char *name, size_t len)
+{
+	RTE_SET_USED(id);
+	RTE_SET_USED(name);
+	RTE_SET_USED(len);
+
+	return -ENOTSUP;
+}
diff --git a/lib/librte_eal/include/rte_lcore.h b/lib/librte_eal/include/rte_lcore.h
index 476b8ef3a..339046bc8 100644
--- a/lib/librte_eal/include/rte_lcore.h
+++ b/lib/librte_eal/include/rte_lcore.h
@@ -240,6 +240,23 @@  void rte_thread_get_affinity(rte_cpuset_t *cpusetp);
  */
 int rte_thread_setname(pthread_t id, const char *name);
 
+/**
+ * Get thread name.
+ *
+ * @note It fails with glibc < 2.12.
+ *
+ * @param id
+ *   Thread id.
+ * @param name
+ *   Thread name to set.
+ * @param len
+ *   Thread name buffer length.
+ * @return
+ *   On success, return 0; otherwise return a negative value.
+ */
+__rte_experimental
+int rte_thread_getname(pthread_t id, char *name, size_t len);
+
 /**
  * Create a control thread.
  *
diff --git a/lib/librte_eal/linux/eal_thread.c b/lib/librte_eal/linux/eal_thread.c
index 2fa5806b8..61fb2ed45 100644
--- a/lib/librte_eal/linux/eal_thread.c
+++ b/lib/librte_eal/linux/eal_thread.c
@@ -186,3 +186,18 @@  int rte_thread_setname(pthread_t id, const char *name)
 	RTE_SET_USED(name);
 	return -ret;
 }
+
+int rte_thread_getname(pthread_t id, char *name, size_t len)
+{
+	int ret = ENOSYS;
+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
+#if __GLIBC_PREREQ(2, 12)
+	ret = pthread_getname_np(id, name, len);
+#endif
+#endif
+	RTE_SET_USED(id);
+	RTE_SET_USED(name);
+	RTE_SET_USED(len);
+	return -ret;
+
+}
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index f9ede5b41..71098581f 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -338,4 +338,5 @@  EXPERIMENTAL {
 
 	# added in 20.05
 	rte_log_can_log;
+	rte_thread_getname;
 };