[PATCH v3 2/2] Mutex: add unit tests for new type

[Kemi Wang <kemi dot wang at intel dot com>]

Since a new type mutex with GNU extension PTHREAD_MUTEX_QUEUESPINNER_NP is
introduced, some unit tests are added accordingly to avoid regression.

Similar to other mutex type, the initializer PTHREAD_QUEUESPINNER_MUTEX_INITIALIZER_NP
is tested in nptl/tst-initializers1.c

Based-on the template provided in tst-mutex5.c, the basic function
pthread_mutex_{init, trylock, lock, unlock} and pthread_mutexattr_{init,
settype, destroy} are tested in nptl/tst-mutex5b.c for this new type mutex with
GNU extension PTHREAD_MUTEX_QUEUESPINNER_NP.  Adding extra PI
(PRIORITY_INHERIT) attribution testing in nptl/tst-mutexpi5b.c for this new
mutex type.

Based-on the template provided in tst-mutex7.c, the basic function
pthread_mutex_{lock, unlock} is tested with multiple threads running in
parallel in nptl/tst-mutex7b.c for this new type mutex with GNU extension
PTHREAD_MUTEX_QUEUESPINNER_NP. Adding extra PI attribution testing in
nptl/tst-mutexpi7b.c for this new type.

    *nptl/Makefile (tests): Add tst-mutex5b, tst-mutexpi5b, tst-mutex7b,
    and tst-mutexpi7b
    *nptl/tst-initializer1.c: Add a test for the initializer
    PTHREAD_QUEUESPINNER_MUTEX_INITIALIZER_NP
    *nptl/tst-mutex5b.c: New file
    *nptl/tst-mutexpi5b.c: Likewise
    *nptl/tst-mutex7b.c: Likewise
    *nptl/tst-mutexpi7b.c: Likewise

V2->V3:
  a) Add changelog entry and a more detailed description of this change
  b) Add two more test cases for this mutex type with PI attribution.

V1->V2:
  No change.
Signed-off-by: Kemi Wang <kemi.wang@intel.com>
---
 nptl/Makefile            | 8 ++++----
 nptl/tst-initializers1.c | 9 ++++++---
 nptl/tst-mutex5b.c       | 2 ++
 nptl/tst-mutex7b.c       | 2 ++
 nptl/tst-mutexpi5b.c     | 2 ++
 nptl/tst-mutexpi7b.c     | 2 ++
 6 files changed, 18 insertions(+), 7 deletions(-)
 create mode 100644 nptl/tst-mutex5b.c
 create mode 100644 nptl/tst-mutex7b.c
 create mode 100644 nptl/tst-mutexpi5b.c
 create mode 100644 nptl/tst-mutexpi7b.c

diff --git a/nptl/Makefile b/nptl/Makefile
index 0de8df3..9669f94 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -242,10 +242,10 @@ LDLIBS-tst-minstack-throw = -lstdc++
 
 tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \
 	tst-mutex1 tst-mutex2 tst-mutex3 tst-mutex4 tst-mutex5 tst-mutex6 \
-	tst-mutex7 tst-mutex9 tst-mutex10 tst-mutex5a tst-mutex7a \
-	tst-mutex7robust tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 tst-mutexpi4 \
-	tst-mutexpi5 tst-mutexpi5a tst-mutexpi6 tst-mutexpi7 tst-mutexpi7a \
-	tst-mutexpi9 \
+	tst-mutex7 tst-mutex9 tst-mutex10 tst-mutex5a tst-mutex5b tst-mutex7a \
+	tst-mutex7b tst-mutex7robust tst-mutexpi1 tst-mutexpi2 tst-mutexpi3 \
+	tst-mutexpi4 tst-mutexpi5 tst-mutexpi5a tst-mutexpi5b  tst-mutexpi6 \
+	tst-mutexpi7 tst-mutexpi7a tst-mutexpi7b tst-mutexpi9 \
 	tst-spin1 tst-spin2 tst-spin3 tst-spin4 \
 	tst-cond1 tst-cond2 tst-cond3 tst-cond4 tst-cond5 tst-cond6 tst-cond7 \
 	tst-cond8 tst-cond9 tst-cond10 tst-cond11 tst-cond12 tst-cond13 \
diff --git a/nptl/tst-initializers1.c b/nptl/tst-initializers1.c
index a8fdac1..080ee2f 100644
--- a/nptl/tst-initializers1.c
+++ b/nptl/tst-initializers1.c
@@ -25,6 +25,7 @@ pthread_mutex_t mtx_normal = PTHREAD_MUTEX_INITIALIZER;
 pthread_mutex_t mtx_recursive = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
 pthread_mutex_t mtx_errorchk = PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP;
 pthread_mutex_t mtx_adaptive = PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP;
+pthread_mutex_t mtx_queuespinner = PTHREAD_QUEUESPINNER_MUTEX_INITIALIZER_NP;
 pthread_rwlock_t rwl_normal = PTHREAD_RWLOCK_INITIALIZER;
 pthread_rwlock_t rwl_writer
   = PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP;
@@ -41,18 +42,20 @@ do_test (void)
     return 3;
   if (mtx_adaptive.__data.__kind != PTHREAD_MUTEX_ADAPTIVE_NP)
     return 4;
-  if (rwl_normal.__data.__flags != PTHREAD_RWLOCK_PREFER_READER_NP)
+  if (mtx_queuespinner.__data.__kind != PTHREAD_MUTEX_QUEUESPINNER_NP)
     return 5;
+  if (rwl_normal.__data.__flags != PTHREAD_RWLOCK_PREFER_READER_NP)
+    return 6;
   if (rwl_writer.__data.__flags
       != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP)
-    return 6;
+    return 7;
   /* <libc-lock.h> __libc_rwlock_init definition for libc.so
      relies on PTHREAD_RWLOCK_INITIALIZER being all zeros.  If
      that ever changes, <libc-lock.h> needs updating.  */
   size_t i;
   for (i = 0; i < sizeof (rwl_normal); i++)
     if (((char *) &rwl_normal)[i] != '\0')
-      return 7;
+      return 8;
   return 0;
 }
 
diff --git a/nptl/tst-mutex5b.c b/nptl/tst-mutex5b.c
new file mode 100644
index 0000000..9da54ea
--- /dev/null
+++ b/nptl/tst-mutex5b.c
@@ -0,0 +1,2 @@
+#define TYPE PTHREAD_MUTEX_QUEUESPINNER_NP
+#include "tst-mutex5.c"
diff --git a/nptl/tst-mutex7b.c b/nptl/tst-mutex7b.c
new file mode 100644
index 0000000..c2c1410
--- /dev/null
+++ b/nptl/tst-mutex7b.c
@@ -0,0 +1,2 @@
+#define TYPE PTHREAD_MUTEX_QUEUESPINNER_NP
+#include "tst-mutex7.c"
diff --git a/nptl/tst-mutexpi5b.c b/nptl/tst-mutexpi5b.c
new file mode 100644
index 0000000..8985447
--- /dev/null
+++ b/nptl/tst-mutexpi5b.c
@@ -0,0 +1,2 @@
+#define ENABLE_PI 1
+#include "tst-mutex5b.c"
diff --git a/nptl/tst-mutexpi7b.c b/nptl/tst-mutexpi7b.c
new file mode 100644
index 0000000..900dd89
--- /dev/null
+++ b/nptl/tst-mutexpi7b.c
@@ -0,0 +1,2 @@
+#define ENABLE_PI 1
+#include "tst-mutex7b.c"
-- 
2.7.4