[libc-commits] [libc] [libc][POSIX][pthreads] implemented missing pthread_rwlockattr functions (PR #90249)
Hendrik Hübner via libc-commits
libc-commits at lists.llvm.org
Fri Apr 26 11:52:42 PDT 2024
https://github.com/HendrikHuebner created https://github.com/llvm/llvm-project/pull/90249
Closes #89443
I added the two missing functions and respective test cases. Let me know if anything needs changing.
>From 5326ae645cf50a44d22d11b14942a6ea01a098fc Mon Sep 17 00:00:00 2001
From: hhuebner <hendrik.huebner18 at gmail.com>
Date: Fri, 26 Apr 2024 17:10:36 +0200
Subject: [PATCH] [libc][POSIX][pthreads] implemented
pthread_rwlockattr_{get|set}kind_np functions
---
libc/config/linux/x86_64/entrypoints.txt | 2 ++
libc/include/pthread.h.def | 5 ++++
libc/spec/posix.td | 10 +++++++
libc/src/pthread/CMakeLists.txt | 21 +++++++++++++
.../pthread/pthread_rwlockattr_getkind_np.cpp | 23 ++++++++++++++
.../pthread/pthread_rwlockattr_getkind_np.h | 20 +++++++++++++
libc/src/pthread/pthread_rwlockattr_init.cpp | 1 +
.../pthread/pthread_rwlockattr_setkind_np.cpp | 30 +++++++++++++++++++
.../pthread/pthread_rwlockattr_setkind_np.h | 20 +++++++++++++
libc/test/src/pthread/CMakeLists.txt | 2 ++
.../src/pthread/pthread_rwlockattr_test.cpp | 29 ++++++++++++++++--
11 files changed, 160 insertions(+), 3 deletions(-)
create mode 100644 libc/src/pthread/pthread_rwlockattr_getkind_np.cpp
create mode 100644 libc/src/pthread/pthread_rwlockattr_getkind_np.h
create mode 100644 libc/src/pthread/pthread_rwlockattr_setkind_np.cpp
create mode 100644 libc/src/pthread/pthread_rwlockattr_setkind_np.h
diff --git a/libc/config/linux/x86_64/entrypoints.txt b/libc/config/linux/x86_64/entrypoints.txt
index a8e28992766712..4a6d9659380321 100644
--- a/libc/config/linux/x86_64/entrypoints.txt
+++ b/libc/config/linux/x86_64/entrypoints.txt
@@ -670,8 +670,10 @@ if(LLVM_LIBC_FULL_BUILD)
libc.src.pthread.pthread_mutexattr_settype
libc.src.pthread.pthread_once
libc.src.pthread.pthread_rwlockattr_destroy
+ libc.src.pthread.pthread_rwlockattr_getkind_np
libc.src.pthread.pthread_rwlockattr_getpshared
libc.src.pthread.pthread_rwlockattr_init
+ libc.src.pthread.pthread_rwlockattr_setkind_np
libc.src.pthread.pthread_rwlockattr_setpshared
libc.src.pthread.pthread_setspecific
diff --git a/libc/include/pthread.h.def b/libc/include/pthread.h.def
index a94d770657e100..d41273b5590eaa 100644
--- a/libc/include/pthread.h.def
+++ b/libc/include/pthread.h.def
@@ -38,6 +38,11 @@ enum {
#define PTHREAD_PROCESS_PRIVATE 0
#define PTHREAD_PROCESS_SHARED 1
+#define PTHREAD_RWLOCK_PREFER_READER_NP 0
+#define PTHREAD_RWLOCK_PREFER_WRITER_NP 1
+#define PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP 2
+
+
%%public_api()
#endif // LLVM_LIBC_PTHREAD_H
diff --git a/libc/spec/posix.td b/libc/spec/posix.td
index d428d54e32a331..e8a6dff25d7300 100644
--- a/libc/spec/posix.td
+++ b/libc/spec/posix.td
@@ -1229,6 +1229,11 @@ def POSIX : StandardSpec<"POSIX"> {
RetValSpec<IntType>,
[ArgSpec<PThreadRWLockAttrTPtr>]
>,
+ FunctionSpec<
+ "pthread_rwlockattr_getkind_np",
+ RetValSpec<IntType>,
+ [ArgSpec<PThreadRWLockAttrTPtr>, ArgSpec<IntPtr>]
+ >,
FunctionSpec<
"pthread_rwlockattr_getpshared",
RetValSpec<IntType>,
@@ -1239,6 +1244,11 @@ def POSIX : StandardSpec<"POSIX"> {
RetValSpec<IntType>,
[ArgSpec<PThreadRWLockAttrTPtr>]
>,
+ FunctionSpec<
+ "pthread_rwlockattr_setkind_np",
+ RetValSpec<IntType>,
+ [ArgSpec<PThreadRWLockAttrTPtr>, ArgSpec<IntType>]
+ >,
FunctionSpec<
"pthread_rwlockattr_setpshared",
RetValSpec<IntType>,
diff --git a/libc/src/pthread/CMakeLists.txt b/libc/src/pthread/CMakeLists.txt
index c57475c9114fa6..e5bebb63c64013 100644
--- a/libc/src/pthread/CMakeLists.txt
+++ b/libc/src/pthread/CMakeLists.txt
@@ -470,6 +470,16 @@ add_entrypoint_object(
libc.include.pthread
)
+add_entrypoint_object(
+ pthread_rwlockattr_getkind_np
+ SRCS
+ pthread_rwlockattr_getkind_np.cpp
+ HDRS
+ pthread_rwlockattr_getkind_np.h
+ DEPENDS
+ libc.include.pthread
+)
+
add_entrypoint_object(
pthread_rwlockattr_getpshared
SRCS
@@ -490,6 +500,17 @@ add_entrypoint_object(
libc.include.pthread
)
+add_entrypoint_object(
+ pthread_rwlockattr_setkind_np
+ SRCS
+ pthread_rwlockattr_setkind_np.cpp
+ HDRS
+ pthread_rwlockattr_setkind_np.h
+ DEPENDS
+ libc.include.pthread
+ libc.include.errno
+)
+
add_entrypoint_object(
pthread_rwlockattr_setpshared
SRCS
diff --git a/libc/src/pthread/pthread_rwlockattr_getkind_np.cpp b/libc/src/pthread/pthread_rwlockattr_getkind_np.cpp
new file mode 100644
index 00000000000000..a80ef41fb28efb
--- /dev/null
+++ b/libc/src/pthread/pthread_rwlockattr_getkind_np.cpp
@@ -0,0 +1,23 @@
+//===-- Implementation of the pthread_rwlockattr_getkind_np ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "pthread_rwlockattr_getkind_np.h"
+
+#include "src/__support/common.h"
+
+#include <pthread.h> // pthread_rwlockattr_t
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(int, pthread_rwlockattr_getkind_np,
+ (const pthread_rwlockattr_t *__restrict attr, int *__restrict pref)) {
+ *pref = attr->pref;
+ return 0;
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/pthread/pthread_rwlockattr_getkind_np.h b/libc/src/pthread/pthread_rwlockattr_getkind_np.h
new file mode 100644
index 00000000000000..827506d955d203
--- /dev/null
+++ b/libc/src/pthread/pthread_rwlockattr_getkind_np.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for pthread_rwlockattr_getkind_np -*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_GETKIND_NP_H
+#define LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_GETKIND_NP_H
+
+#include <pthread.h>
+
+namespace LIBC_NAMESPACE {
+
+int pthread_rwlockattr_getkind_np(const pthread_rwlockattr_t *__restrict attr, int *__restrict pref);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_GETKIND_NP_H
diff --git a/libc/src/pthread/pthread_rwlockattr_init.cpp b/libc/src/pthread/pthread_rwlockattr_init.cpp
index 7971f1714db484..bbc89555c6c1cd 100644
--- a/libc/src/pthread/pthread_rwlockattr_init.cpp
+++ b/libc/src/pthread/pthread_rwlockattr_init.cpp
@@ -17,6 +17,7 @@ namespace LIBC_NAMESPACE {
LLVM_LIBC_FUNCTION(int, pthread_rwlockattr_init,
(pthread_rwlockattr_t * attr)) {
attr->pshared = PTHREAD_PROCESS_PRIVATE;
+ attr->pref = PTHREAD_RWLOCK_PREFER_READER_NP;
return 0;
}
diff --git a/libc/src/pthread/pthread_rwlockattr_setkind_np.cpp b/libc/src/pthread/pthread_rwlockattr_setkind_np.cpp
new file mode 100644
index 00000000000000..ca3ab7d4a9a6ae
--- /dev/null
+++ b/libc/src/pthread/pthread_rwlockattr_setkind_np.cpp
@@ -0,0 +1,30 @@
+//===-- Implementation of the pthread_rwlockattr_setkind_np ---------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "pthread_rwlockattr_setkind_np.h"
+
+#include "src/__support/common.h"
+
+#include <errno.h>
+#include <pthread.h> // pthread_rwlockattr_t
+
+namespace LIBC_NAMESPACE {
+
+LLVM_LIBC_FUNCTION(int, pthread_rwlockattr_setkind_np,
+ (pthread_rwlockattr_t *attr, int pref)) {
+
+ if (pref != PTHREAD_RWLOCK_PREFER_READER_NP &&
+ pref != PTHREAD_RWLOCK_PREFER_WRITER_NP &&
+ pref != PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP)
+ return EINVAL;
+
+ attr->pref = pref;
+ return 0;
+}
+
+} // namespace LIBC_NAMESPACE
diff --git a/libc/src/pthread/pthread_rwlockattr_setkind_np.h b/libc/src/pthread/pthread_rwlockattr_setkind_np.h
new file mode 100644
index 00000000000000..00ef8e1bbe0090
--- /dev/null
+++ b/libc/src/pthread/pthread_rwlockattr_setkind_np.h
@@ -0,0 +1,20 @@
+//===-- Implementation header for pthread_rwlockattr_setkind_np -*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_SETKIND_NP_H
+#define LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_SETKIND_NP_H
+
+#include <pthread.h>
+
+namespace LIBC_NAMESPACE {
+
+int pthread_rwlockattr_setkind_np(pthread_rwlockattr_t *attr, int pref);
+
+} // namespace LIBC_NAMESPACE
+
+#endif // LLVM_LIBC_SRC_PTHREAD_PTHREAD_RWLOCKATTR_SETKIND_NP_H
diff --git a/libc/test/src/pthread/CMakeLists.txt b/libc/test/src/pthread/CMakeLists.txt
index ea75e65f57c9eb..0eeec445d5f49c 100644
--- a/libc/test/src/pthread/CMakeLists.txt
+++ b/libc/test/src/pthread/CMakeLists.txt
@@ -68,7 +68,9 @@ add_libc_unittest(
libc.include.errno
libc.include.pthread
libc.src.pthread.pthread_rwlockattr_destroy
+ libc.src.pthread.pthread_rwlockattr_getkind_np
libc.src.pthread.pthread_rwlockattr_getpshared
libc.src.pthread.pthread_rwlockattr_init
+ libc.src.pthread.pthread_rwlockattr_setkind_np
libc.src.pthread.pthread_rwlockattr_setpshared
)
diff --git a/libc/test/src/pthread/pthread_rwlockattr_test.cpp b/libc/test/src/pthread/pthread_rwlockattr_test.cpp
index 6e5ae70df7343f..3791f568e2228d 100644
--- a/libc/test/src/pthread/pthread_rwlockattr_test.cpp
+++ b/libc/test/src/pthread/pthread_rwlockattr_test.cpp
@@ -8,8 +8,10 @@
#include "include/llvm-libc-macros/generic-error-number-macros.h" // EINVAL
#include "src/pthread/pthread_rwlockattr_destroy.h"
+#include "src/pthread/pthread_rwlockattr_getkind_np.h"
#include "src/pthread/pthread_rwlockattr_getpshared.h"
#include "src/pthread/pthread_rwlockattr_init.h"
+#include "src/pthread/pthread_rwlockattr_setkind_np.h"
#include "src/pthread/pthread_rwlockattr_setpshared.h"
#include "test/UnitTest/Test.h"
@@ -25,40 +27,61 @@ TEST(LlvmLibcPThreadRWLockAttrTest, InitAndDestroy) {
TEST(LlvmLibcPThreadRWLockAttrTest, GetDefaultValues) {
pthread_rwlockattr_t attr;
- // Invalid value.
+ // Invalid values.
int pshared = 42;
+ int pref = 1337;
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
+ ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
+
ASSERT_EQ(pshared, PTHREAD_PROCESS_PRIVATE);
+ ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_READER_NP);
+
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
}
TEST(LlvmLibcPThreadRWLockAttrTest, SetGoodValues) {
pthread_rwlockattr_t attr;
- // Invalid value.
+ // Invalid values.
int pshared = 42;
+ int pref = 1337;
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setpshared(
&attr, PTHREAD_PROCESS_SHARED),
0);
+ ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setkind_np(
+ &attr, PTHREAD_RWLOCK_PREFER_WRITER_NP),
+ 0);
+
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
+ ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
+
ASSERT_EQ(pshared, PTHREAD_PROCESS_SHARED);
+ ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_WRITER_NP);
+
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
}
TEST(LlvmLibcPThreadRWLockAttrTest, SetBadValues) {
pthread_rwlockattr_t attr;
- // Invalid value.
+ // Invalid values.
int pshared = 42;
+ int pref = 1337;
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_init(&attr), 0);
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setpshared(&attr, pshared),
EINVAL);
+ ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_setkind_np(&attr, pref), EINVAL);
+
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getpshared(&attr, &pshared), 0);
+ ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_getkind_np(&attr, &pref), 0);
+
ASSERT_EQ(pshared, PTHREAD_PROCESS_PRIVATE);
+ ASSERT_EQ(pref, PTHREAD_RWLOCK_PREFER_READER_NP);
+
ASSERT_EQ(LIBC_NAMESPACE::pthread_rwlockattr_destroy(&attr), 0);
}
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