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authorTobias Brunner <tobias@strongswan.org>2011-12-16 16:21:01 +0100
committerTobias Brunner <tobias@strongswan.org>2011-12-16 16:44:38 +0100
commitc17f6f96e2da0265a5d565a43cbca036f1571dfb (patch)
tree1719b4ec23b9f10ae5dbaa6e6628997ea379d965
parentb24287c2693e681c33a6a3f11455cbf604f218b0 (diff)
downloadstrongswan-c17f6f96e2da0265a5d565a43cbca036f1571dfb.tar.bz2
strongswan-c17f6f96e2da0265a5d565a43cbca036f1571dfb.tar.xz
Log native thread ID when a thread is created.
If possible gettid() is used, otherwise pthread_self() is logged (which is not completely portable, but seems to work on most supported platforms).
-rw-r--r--configure.in11
-rw-r--r--src/libstrongswan/threading/thread.c17
2 files changed, 27 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index 4f4f03554..b6c35703a 100644
--- a/configure.in
+++ b/configure.in
@@ -380,6 +380,17 @@ dnl check if native rwlocks are available
AC_CHECK_FUNCS(pthread_rwlock_init)
LIBS=$saved_LIBS
+AC_MSG_CHECKING([for gettid])
+AC_TRY_COMPILE(
+ [#define _GNU_SOURCE
+ #include <unistd.h>
+ #include <sys/syscall.h>],
+ [int main() {
+ return syscall(SYS_gettid);}],
+ [AC_MSG_RESULT([yes]); AC_DEFINE([HAVE_GETTID])],
+ [AC_MSG_RESULT([no])]
+)
+
AC_CHECK_FUNCS(prctl mallinfo getpass closefrom)
AC_CHECK_HEADERS(sys/sockio.h glob.h)
diff --git a/src/libstrongswan/threading/thread.c b/src/libstrongswan/threading/thread.c
index d3da1e379..9092bf7b7 100644
--- a/src/libstrongswan/threading/thread.c
+++ b/src/libstrongswan/threading/thread.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2009 Tobias Brunner
+ * Copyright (C) 2009-2011 Tobias Brunner
* Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
@@ -17,6 +17,10 @@
#include <pthread.h>
#include <signal.h>
#include <semaphore.h>
+#ifdef HAVE_GETTID
+#include <unistd.h>
+#include <sys/syscall.h>
+#endif
#include <library.h>
#include <debug.h>
@@ -278,6 +282,17 @@ static void *thread_main(private_thread_t *this)
sem_wait(&this->created);
current_thread->set(current_thread, this);
pthread_cleanup_push((thread_cleanup_t)thread_cleanup, this);
+
+ /* TODO: this is not 100% portable as pthread_t is an opaque type (i.e.
+ * could be of any size, or even a struct) */
+#ifdef HAVE_GETTID
+ DBG2(DBG_LIB, "created thread %.2d [%u]",
+ this->id, syscall(SYS_gettid));
+#else
+ DBG2(DBG_LIB, "created thread %.2d [%lx]",
+ this->id, (u_long)this->thread_id);
+#endif
+
res = this->main(this->arg);
pthread_cleanup_pop(TRUE);