From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50903) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bn11V-000849-4R for qemu-devel@nongnu.org; Thu, 22 Sep 2016 06:14:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bn11S-0006pu-Vy for qemu-devel@nongnu.org; Thu, 22 Sep 2016 06:14:32 -0400 Received: from mail-wm0-f54.google.com ([74.125.82.54]:37118) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bn11S-0006pj-Lr for qemu-devel@nongnu.org; Thu, 22 Sep 2016 06:14:30 -0400 Received: by mail-wm0-f54.google.com with SMTP id b130so139479286wmc.0 for ; Thu, 22 Sep 2016 03:14:30 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Thu, 22 Sep 2016 11:13:15 +0100 Message-Id: <20160922101316.13064-9-alex.bennee@linaro.org> In-Reply-To: <20160922101316.13064-1-alex.bennee@linaro.org> References: <20160922101316.13064-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH v2 8/9] qga/command: use QEMU atomic primitives List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, pbonzini@redhat.com, cota@braap.org, stefanha@redhat.com, kwolf@redhat.com Cc: mttcg@listserver.greensocs.com, fred.konrad@greensocs.com, a.rigo@virtualopensystems.com, bobby.prani@gmail.com, nikunj@linux.vnet.ibm.com, mark.burton@greensocs.com, jan.kiszka@siemens.com, serge.fdrv@gmail.com, rth@twiddle.net, peter.maydell@linaro.org, claudio.fontana@huawei.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= , Michael Roth The guest client's use of the glib's g_atomic primitives causes newer GCC's to barf when built on Travis. As QEMU has its own primitives with well understood semantics we might as well use them. The use of atomics was a little inconsistent so I've also ensure the values are correctly set with atomic primitives at the same time. I also made the usage of bool consistent while I was at it. Signed-off-by: Alex Bennée --- qga/commands.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/qga/commands.c b/qga/commands.c index 50fd26a..edd3e83 100644 --- a/qga/commands.c +++ b/qga/commands.c @@ -16,6 +16,7 @@ #include "qapi/qmp/qerror.h" #include "qemu/base64.h" #include "qemu/cutils.h" +#include "qemu/atomic.h" /* Maximum captured guest-exec out_data/err_data - 16MB */ #define GUEST_EXEC_MAX_OUTPUT (16*1024*1024) @@ -82,7 +83,7 @@ struct GuestExecIOData { guchar *data; gsize size; gsize length; - gint closed; + bool closed; bool truncated; const char *name; }; @@ -93,7 +94,7 @@ struct GuestExecInfo { int64_t pid_numeric; gint status; bool has_output; - gint finished; + bool finished; GuestExecIOData in; GuestExecIOData out; GuestExecIOData err; @@ -156,13 +157,13 @@ GuestExecStatus *qmp_guest_exec_status(int64_t pid, Error **err) ges = g_new0(GuestExecStatus, 1); - bool finished = g_atomic_int_get(&gei->finished); + bool finished = atomic_mb_read(&gei->finished); /* need to wait till output channels are closed * to be sure we captured all output at this point */ if (gei->has_output) { - finished = finished && g_atomic_int_get(&gei->out.closed); - finished = finished && g_atomic_int_get(&gei->err.closed); + finished = finished && atomic_mb_read(&gei->out.closed); + finished = finished && atomic_mb_read(&gei->err.closed); } ges->exited = finished; @@ -264,7 +265,7 @@ static void guest_exec_child_watch(GPid pid, gint status, gpointer data) (int32_t)gpid_to_int64(pid), (uint32_t)status); gei->status = status; - gei->finished = true; + atomic_mb_set(&gei->finished, true); g_spawn_close_pid(pid); } @@ -320,7 +321,7 @@ static gboolean guest_exec_input_watch(GIOChannel *ch, done: g_io_channel_shutdown(ch, true, NULL); g_io_channel_unref(ch); - g_atomic_int_set(&p->closed, 1); + atomic_mb_set(&p->closed, true); g_free(p->data); return false; @@ -374,7 +375,7 @@ static gboolean guest_exec_output_watch(GIOChannel *ch, close: g_io_channel_shutdown(ch, true, NULL); g_io_channel_unref(ch); - g_atomic_int_set(&p->closed, 1); + atomic_mb_set(&p->closed, true); return false; } -- 2.9.3