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Diffstat (limited to 'linuxthreads/pthread.c')
-rw-r--r--linuxthreads/pthread.c29
1 files changed, 14 insertions, 15 deletions
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c
index 9699b4ddcc..83d160622d 100644
--- a/linuxthreads/pthread.c
+++ b/linuxthreads/pthread.c
@@ -58,7 +58,8 @@ struct _pthread_descr_struct __pthread_initial_thread = {
};
/* Descriptor of the manager thread; none of this is used but the error
- variables and the address for identification. */
+ variables, the p_pid and p_priority fields,
+ and the address for identification. */
struct _pthread_descr_struct __pthread_manager_thread = {
NULL, /* pthread_descr p_nextlive */
@@ -108,10 +109,6 @@ int __pthread_manager_request = -1;
int __pthread_manager_reader;
-/* PID of thread manager */
-
-static int __pthread_manager_pid;
-
/* Limits of the thread manager stack */
char *__pthread_manager_thread_bos = NULL;
@@ -203,6 +200,7 @@ static void pthread_initialize(void)
static int pthread_initialize_manager(void)
{
int manager_pipe[2];
+ int pid;
/* If basic initialization not done yet (e.g. we're called from a
constructor run before our constructor), do it now */
@@ -217,20 +215,19 @@ static int pthread_initialize_manager(void)
free(__pthread_manager_thread_bos);
return -1;
}
- __pthread_manager_request = manager_pipe[1]; /* writing end */
- __pthread_manager_reader = manager_pipe[0]; /* reading end */
/* Start the thread manager */
- __pthread_manager_pid =
- __clone(__pthread_manager, (void **) __pthread_manager_thread_tos,
- CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
- (void *)(long)manager_pipe[0]);
- if (__pthread_manager_pid == -1) {
+ pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos,
+ CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND,
+ (void *)(long)manager_pipe[0]);
+ if (pid == -1) {
free(__pthread_manager_thread_bos);
__libc_close(manager_pipe[0]);
__libc_close(manager_pipe[1]);
- __pthread_manager_request = -1;
return -1;
}
+ __pthread_manager_request = manager_pipe[1]; /* writing end */
+ __pthread_manager_reader = manager_pipe[0]; /* reading end */
+ __pthread_manager_thread.p_pid = pid;
return 0;
}
@@ -319,6 +316,8 @@ int pthread_setschedparam(pthread_t thread, int policy,
}
th->p_priority = policy == SCHED_OTHER ? 0 : param->sched_priority;
release(&handle->h_spinlock);
+ if (__pthread_manager_request >= 0)
+ __pthread_manager_adjust_prio(th->p_priority);
return 0;
}
@@ -359,7 +358,7 @@ static void pthread_exit_process(int retcode, void *arg)
/* Main thread should accumulate times for thread manager and its
children, so that timings for main thread account for all threads. */
if (self == __pthread_main_thread)
- waitpid(__pthread_manager_pid, NULL, __WCLONE);
+ waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE);
}
}
@@ -392,7 +391,7 @@ static void pthread_handle_sigcancel(int sig)
/* Main thread should accumulate times for thread manager and its
children, so that timings for main thread account for all threads. */
if (self == __pthread_main_thread)
- waitpid(__pthread_manager_pid, NULL, __WCLONE);
+ waitpid(__pthread_manager_thread.p_pid, NULL, __WCLONE);
_exit(__pthread_exit_code);
}
if (self->p_canceled && self->p_cancelstate == PTHREAD_CANCEL_ENABLE) {