From a4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Sat, 27 Aug 2022 23:52:56 -0500
Subject: add plibsys

---
 3rdparty/plibsys/cmake/ThreadNameDetect.cmake | 135 ++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 3rdparty/plibsys/cmake/ThreadNameDetect.cmake

(limited to '3rdparty/plibsys/cmake/ThreadNameDetect.cmake')

diff --git a/3rdparty/plibsys/cmake/ThreadNameDetect.cmake b/3rdparty/plibsys/cmake/ThreadNameDetect.cmake
new file mode 100644
index 0000000..c850d82
--- /dev/null
+++ b/3rdparty/plibsys/cmake/ThreadNameDetect.cmake
@@ -0,0 +1,135 @@
+# The MIT License
+#
+# Copyright (C) 2019 Alexander Saprykin <saprykin.spb@gmail.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# 'Software'), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+function (plibsys_detect_thread_name has_pthread_np_h result)
+        set (PTHREAD_HEADERS "#include <pthread.h>")
+
+        if (${has_pthread_np_h})
+                set (PTHREAD_HEADERS "${PTHREAD_HEADERS}\n#include<pthread_np.h>")
+        endif()
+
+        # Check pthread_setname_np() with 1 arg
+
+        if (NOT PLIBSYS_THREAD_SETTER)
+                check_c_source_compiles ("
+                     ${PTHREAD_HEADERS}
+
+                     int main () {
+                        pthread_setname_np (\"thread_name\");
+                        return 0;
+                     }"
+                    PLIBSYS_HAS_POSIX_SETNAME_NP_1
+                )
+
+                if (PLIBSYS_HAS_POSIX_SETNAME_NP_1)
+                        set (PLIBSYS_THREAD_SETTER "pthread_setname_np")
+                endif()
+        endif()
+
+        # Check pthread_setname_np() with 2 args
+
+        if (NOT PLIBSYS_THREAD_SETTER)
+                check_c_source_compiles ("
+                     ${PTHREAD_HEADERS}
+
+                     int main () {
+                        pthread_setname_np ((pthread_t) 0, \"thread_name\");
+                        return 0;
+                     }"
+                    PLIBSYS_HAS_POSIX_SETNAME_NP_2
+                )
+
+                if (PLIBSYS_HAS_POSIX_SETNAME_NP_2)
+                        set (PLIBSYS_THREAD_SETTER "pthread_setname_np")
+                endif()
+        endif()
+
+        # Check pthread_setname_np() with 3 args
+
+        if (NOT PLIBSYS_THREAD_SETTER)
+                check_c_source_compiles ("
+                     ${PTHREAD_HEADERS}
+
+                     int main () {
+                        pthread_setname_np ((pthread_t) 0, \"thread_name\", 0);
+                        return 0;
+                     }"
+                    PLIBSYS_HAS_POSIX_SETNAME_NP_3
+                )
+
+                if (PLIBSYS_HAS_POSIX_SETNAME_NP_3)
+                        set (PLIBSYS_THREAD_SETTER "pthread_setname_np")
+                endif()
+        endif()
+
+        # Check pthread_set_name_np()
+
+        if (NOT PLIBSYS_THREAD_SETTER)
+                check_c_source_compiles ("
+                     ${PTHREAD_HEADERS}
+
+                     int main () {
+                        pthread_set_name_np ((pthread_t) 0, \"thread_name\");
+                        return 0;
+                     }"
+                    PLIBSYS_HAS_POSIX_SET_NAME_NP
+                )
+
+                if (PLIBSYS_HAS_POSIX_SET_NAME_NP)
+                        set (PLIBSYS_THREAD_SETTER "pthread_set_name_np")
+                endif()
+        endif()
+
+        # The last try is prctl()
+
+        if (NOT PLIBSYS_THREAD_SETTER)
+                check_c_source_compiles ("
+                     #include <sys/prctl.h>
+                     #include <linux/prctl.h>
+
+                     int main () {
+                        prctl (PR_SET_NAME, \"thread_name\", NULL, NULL, NULL);
+                        return 0;
+                     }"
+                    PLIBSYS_PRCTL
+                )
+
+                if (PLIBSYS_PRCTL)
+                        set (PLIBSYS_THREAD_SETTER "prctl")
+                endif()
+        endif()
+
+        # It seems that CMake (old versions like 2.8.x - 2.10.x) has a bug,
+        # such that when passing empty values to the parent scope, these variable
+        # are not treated as empty, thereby use NONE value instead
+
+        if (PLIBSYS_THREAD_SETTER STREQUAL "pthread_setname_np")
+                set (${result} "PLIBSYS_HAS_PTHREAD_SETNAME" PARENT_SCOPE)
+        elseif (PLIBSYS_THREAD_SETTER STREQUAL "pthread_set_name_np")
+                set (${result} "PLIBSYS_HAS_PTHREAD_SET_NAME" PARENT_SCOPE)
+        elseif (PLIBSYS_THREAD_SETTER STREQUAL "prctl")
+                set (${result} "PLIBSYS_HAS_PTHREAD_PRCTL" PARENT_SCOPE)
+        else()
+                set (${result} "NONE" PARENT_SCOPE)
+        endif()
+endfunction (plibsys_detect_thread_name)
-- 
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