Re: [FFmpeg-devel] [PATCH v2] lavu/thread: add support for setting thread name on *bsd and solaris

[Brad Smith]

On 2024-01-07 12:55 a.m., Brad Smith wrote:

lavu/thread: add support for setting thread name on *bsd and solaris

FreeBSD/DragonFly/Solaris use pthread_setname_np(). OpenBSD uses 
pthread_set_name_np().

Signed-off-by: Brad Smith<b...@comstyle.com>
---
  configure          | 10 ++++++++++
  libavutil/thread.h | 14 ++++++++++++--
  2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index 0b5e83bd20..67660b6292 100755
--- a/configure
+++ b/configure
@@ -2239,6 +2239,7 @@ HEADERS_LIST="
      opencv2_core_core_c_h
      OpenGL_gl3_h
      poll_h
+    pthread_np_h
      sys_param_h
      sys_resource_h
      sys_select_h
@@ -2341,6 +2342,8 @@ SYSTEM_FUNCS="
      posix_memalign
      prctl
      pthread_cancel
+    pthread_set_name_np
+    pthread_setname_np
      sched_getaffinity
      SecItemImport
      SetConsoleTextAttribute
@@ -6523,6 +6526,7 @@ check_headers malloc.h
  check_headers mftransform.h
  check_headers net/udplite.h
  check_headers poll.h
+check_headers pthread_np.h
  check_headers sys/param.h
  check_headers sys/resource.h
  check_headers sys/select.h
@@ -6691,6 +6695,12 @@ if ! disabled pthreads && ! enabled w32threads && ! 
enabled os2threads; then
      if enabled pthreads; then
          check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); 
sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
          check_func pthread_cancel $pthreads_extralibs
+        hdrs=pthread.h
+        if enabled pthread_np_h; then
+            hdrs="$hdrs pthread_np.h"
+        fi
+        check_lib pthread_set_name_np "$hdrs" pthread_set_name_np -lpthread
+        check_lib pthread_setname_np "$hdrs" pthread_setname_np -lpthread
      fi
  fi

diff --git a/libavutil/thread.h b/libavutil/thread.h

index 2ded498c89..fa74dd2ea7 100644
--- a/libavutil/thread.h
+++ b/libavutil/thread.h
@@ -26,6 +26,8 @@

#if HAVE_PRCTL

  #include <sys/prctl.h>
+#elif (HAVE_PTHREAD_SETNAME_NP || HAVE_PTHREAD_SET_NAME_NP) && 
HAVE_PTHREAD_NP_H
+#include <pthread_np.h>
  #endif

#include "error.h"

@@ -213,11 +215,19 @@ static inline int ff_thread_once(char *control, void 
(*routine)(void))

static inline int ff_thread_setname(const char *name)

  {
+    int ret = 0;
+
  #if HAVE_PRCTL
-    return AVERROR(prctl(PR_SET_NAME, name));
+    ret = AVERROR(prctl(PR_SET_NAME, name));
+#elif HAVE_PTHREAD_SETNAME_NP
+    ret = AVERROR(pthread_setname_np(pthread_self(), name));
+#elif HAVE_PTHREAD_SET_NAME_NP
+    pthread_set_name_np(pthread_self(), name);
+#else
+    ret = AVERROR(ENOSYS);
  #endif

- return AVERROR(ENOSYS);

+    return ret;
  }

#endif /* AVUTIL_THREAD_H */

ping.
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