[v2,01/32] eal: introduce API for getting thread name
diff mbox series

Message ID 20200325211603.240288-2-jerinj@marvell.com
State Superseded
Delegated to: Thomas Monjalon
Headers show
Series
  • DPDK Trace support
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Context Check Description
ci/Intel-compilation fail Compilation issues
ci/checkpatch warning coding style issues

Commit Message

Jerin Jacob Kollanukkaran March 25, 2020, 9:15 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/common/include/rte_lcore.h | 17 +++++++++++++++++
 lib/librte_eal/freebsd/eal/eal_thread.c   |  9 +++++++++
 lib/librte_eal/linux/eal/eal_thread.c     | 15 +++++++++++++++
 lib/librte_eal/rte_eal_version.map        |  3 +++
 4 files changed, 44 insertions(+)

Patch
diff mbox series

diff --git a/lib/librte_eal/common/include/rte_lcore.h b/lib/librte_eal/common/include/rte_lcore.h
index 476b8ef3a..339046bc8 100644
--- a/lib/librte_eal/common/include/rte_lcore.h
+++ b/lib/librte_eal/common/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/freebsd/eal/eal_thread.c b/lib/librte_eal/freebsd/eal/eal_thread.c
index 309b58726..ae7b57672 100644
--- a/lib/librte_eal/freebsd/eal/eal_thread.c
+++ b/lib/librte_eal/freebsd/eal/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/linux/eal/eal_thread.c b/lib/librte_eal/linux/eal/eal_thread.c
index 379773b68..3f82b286c 100644
--- a/lib/librte_eal/linux/eal/eal_thread.c
+++ b/lib/librte_eal/linux/eal/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 6cf507068..cadfa6465 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -335,4 +335,7 @@  EXPERIMENTAL {
 
 	# added in 20.02
 	rte_thread_is_intr;
+
+	# added in 20.05
+	rte_thread_getname;
 };