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Log native thread ID when a thread is created.

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If possible gettid() is used, otherwise pthread_self() is logged (which is
not completely portable, but seems to work on most supported platforms).
This commit is contained in:
Tobias Brunner 2011-12-16 16:21:01 +01:00
parent b24287c269
commit c17f6f96e2
2 changed files with 27 additions and 1 deletions
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11
configure.in
View File

@ -380,6 +380,17 @@ dnl check if native rwlocks are available
AC_CHECK_FUNCS(pthread_rwlock_init) AC_CHECK_FUNCS(pthread_rwlock_init)
LIBS=$saved_LIBS LIBS=$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_FUNCS(prctl mallinfo getpass closefrom)
AC_CHECK_HEADERS(sys/sockio.h glob.h) AC_CHECK_HEADERS(sys/sockio.h glob.h)

17
src/libstrongswan/threading/thread.c
View File

@ -1,5 +1,5 @@
/* /*
* Copyright (C) 2009 Tobias Brunner * Copyright (C) 2009-2011 Tobias Brunner
* Hochschule fuer Technik Rapperswil * Hochschule fuer Technik Rapperswil
* *
* This program is free software; you can redistribute it and/or modify it * This program is free software; you can redistribute it and/or modify it
@ -17,6 +17,10 @@
#include <pthread.h> #include <pthread.h>
#include <signal.h> #include <signal.h>
#include <semaphore.h> #include <semaphore.h>
#ifdef HAVE_GETTID
#include <unistd.h>
#include <sys/syscall.h>
#endif
#include <library.h> #include <library.h>
#include <debug.h> #include <debug.h>
@ -278,6 +282,17 @@ static void *thread_main(private_thread_t *this)
sem_wait(&this->created); sem_wait(&this->created);
current_thread->set(current_thread, this); current_thread->set(current_thread, this);
pthread_cleanup_push((thread_cleanup_t)thread_cleanup, 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); res = this->main(this->arg);
pthread_cleanup_pop(TRUE); pthread_cleanup_pop(TRUE);