[Spice-devel] [spice-gtk][PATCH] Prefer using g_malloc0()/g_free()
Fabiano Fidêncio
fidencio at redhat.com
Tue Jul 15 01:13:21 PDT 2014
As we already depend on GLib, let's use g_{malloc,new}0() instead of the
standard malloc() or the spice_{malloc,new}*() and g_free() instead of
the standard free() when possible.
Memory allocated by other libraries using malloc() should still be freed
by free().
As a side effect of the changes, we are muting a few warnings caught by
coverity.
---
gtk/channel-cursor.c | 2 +-
gtk/channel-display-mjpeg.c | 8 +++-----
gtk/channel-display.c | 8 ++++----
gtk/channel-main.c | 12 ++++++------
gtk/channel-record.c | 2 +-
gtk/channel-webdav.c | 4 ++--
gtk/controller/test.c | 4 ++--
gtk/decode-glz.c | 10 +++++-----
gtk/decode-jpeg.c | 2 +-
gtk/decode-zlib.c | 2 +-
gtk/spice-channel.c | 20 ++++++++++----------
gtk/spice-client-gtk.override | 7 ++++---
gtk/spice-session.c | 2 +-
gtk/spice-widget.c | 2 +-
gtk/usb-device-manager.c | 2 +-
15 files changed, 43 insertions(+), 44 deletions(-)
diff --git a/gtk/channel-cursor.c b/gtk/channel-cursor.c
index a7d7153..ae788dc 100644
--- a/gtk/channel-cursor.c
+++ b/gtk/channel-cursor.c
@@ -323,7 +323,7 @@ static display_cursor *set_cursor(SpiceChannel *channel, SpiceCursor *scursor)
g_return_val_if_fail(scursor->data_size != 0, NULL);
size = 4u * hdr->width * hdr->height;
- cursor = spice_malloc(sizeof(*cursor) + size);
+ cursor = g_malloc0(sizeof(*cursor) + size);
cursor->hdr = *hdr;
cursor->default_cursor = FALSE;
cursor->refcount = 1;
diff --git a/gtk/channel-display-mjpeg.c b/gtk/channel-display-mjpeg.c
index 2ad653e..95d5b33 100644
--- a/gtk/channel-display-mjpeg.c
+++ b/gtk/channel-display-mjpeg.c
@@ -73,11 +73,9 @@ void stream_mjpeg_data(display_stream *st)
uint8_t *lines[4];
stream_get_dimensions(st, &width, &height);
- dest = malloc(width * height * 4);
+ dest = g_malloc0(width * height * 4);
- if (st->out_frame) {
- free(st->out_frame);
- }
+ g_free(st->out_frame);
st->out_frame = dest;
jpeg_read_header(&st->mjpeg_cinfo, 1);
@@ -153,6 +151,6 @@ G_GNUC_INTERNAL
void stream_mjpeg_cleanup(display_stream *st)
{
jpeg_destroy_decompress(&st->mjpeg_cinfo);
- free(st->out_frame);
+ g_free(st->out_frame);
st->out_frame = NULL;
}
diff --git a/gtk/channel-display.c b/gtk/channel-display.c
index 6265334..6fa97aa 100644
--- a/gtk/channel-display.c
+++ b/gtk/channel-display.c
@@ -730,7 +730,7 @@ static void destroy_canvas(display_surface *surface)
jpeg_decoder_destroy(surface->jpeg_decoder);
if (surface->shmid == -1) {
- free(surface->data);
+ g_free(surface->data);
}
#ifdef HAVE_SYS_SHM_H
else {
@@ -986,7 +986,7 @@ static void display_handle_stream_create(SpiceChannel *channel, SpiceMsgIn *in)
memset(c->streams + n, 0, (c->nstreams - n) * sizeof(c->streams[0]));
}
g_return_if_fail(c->streams[op->id] == NULL);
- c->streams[op->id] = spice_new0(display_stream, 1);
+ c->streams[op->id] = g_new0(display_stream, 1);
st = c->streams[op->id];
st->msg_create = in;
@@ -1486,7 +1486,7 @@ static void destroy_stream(SpiceChannel *channel, int id)
g_queue_free(st->msgq);
if (st->timeout != 0)
g_source_remove(st->timeout);
- free(st);
+ g_free(st);
c->streams[id] = NULL;
}
@@ -1498,7 +1498,7 @@ static void clear_streams(SpiceChannel *channel)
for (i = 0; i < c->nstreams; i++) {
destroy_stream(channel, i);
}
- free(c->streams);
+ g_free(c->streams);
c->streams = NULL;
c->nstreams = 0;
}
diff --git a/gtk/channel-main.c b/gtk/channel-main.c
index 352499c..7a299a4 100644
--- a/gtk/channel-main.c
+++ b/gtk/channel-main.c
@@ -1050,7 +1050,7 @@ gboolean spice_main_send_monitor_config(SpiceMainChannel *channel)
}
size = sizeof(VDAgentMonitorsConfig) + sizeof(VDAgentMonConfig) * monitors;
- mon = spice_malloc0(size);
+ mon = g_malloc0(size);
mon->num_of_monitors = monitors;
if (c->disable_display_position == FALSE ||
@@ -1081,7 +1081,7 @@ gboolean spice_main_send_monitor_config(SpiceMainChannel *channel)
monitors_align(mon->monitors, mon->num_of_monitors);
agent_msg_queue(channel, VD_AGENT_MONITORS_CONFIG, size, mon);
- free(mon);
+ g_free(mon);
spice_channel_wakeup(SPICE_CHANNEL(channel), FALSE);
if (c->timer_id != 0) {
@@ -1133,7 +1133,7 @@ static void agent_announce_caps(SpiceMainChannel *channel)
return;
size = sizeof(VDAgentAnnounceCapabilities) + VD_AGENT_CAPS_BYTES;
- caps = spice_malloc0(size);
+ caps = g_malloc0(size);
if (!c->agent_caps_received)
caps->request = 1;
VD_AGENT_SET_CAPABILITY(caps->caps, VD_AGENT_CAP_MOUSE_STATE);
@@ -1144,7 +1144,7 @@ static void agent_announce_caps(SpiceMainChannel *channel)
VD_AGENT_SET_CAPABILITY(caps->caps, VD_AGENT_CAP_CLIPBOARD_SELECTION);
agent_msg_queue(channel, VD_AGENT_ANNOUNCE_CAPABILITIES, size, caps);
- free(caps);
+ g_free(caps);
}
/* any context: the message is not flushed immediately,
@@ -1879,7 +1879,7 @@ static void main_handle_agent_data_msg(SpiceChannel* channel, int* msg_size, guc
SPICE_DEBUG("agent msg start: msg_size=%d, protocol=%d, type=%d",
c->agent_msg.size, c->agent_msg.protocol, c->agent_msg.type);
g_return_if_fail(c->agent_msg_data == NULL);
- c->agent_msg_data = g_malloc(c->agent_msg.size);
+ c->agent_msg_data = g_malloc0(c->agent_msg.size);
}
}
@@ -2740,7 +2740,7 @@ static void file_xfer_send_start_msg_async(SpiceMainChannel *channel,
SpiceFileXferTask *task;
static uint32_t xfer_id; /* Used to identify task id */
- task = spice_malloc0(sizeof(SpiceFileXferTask));
+ task = g_malloc0(sizeof(SpiceFileXferTask));
task->id = ++xfer_id;
task->channel = g_object_ref(channel);
task->file = g_object_ref(file);
diff --git a/gtk/channel-record.c b/gtk/channel-record.c
index 20af3de..946d66f 100644
--- a/gtk/channel-record.c
+++ b/gtk/channel-record.c
@@ -418,7 +418,7 @@ static void record_handle_start(SpiceChannel *channel, SpiceMsgIn *in)
g_free(c->last_frame);
c->frame_bytes = frame_size * 16 * start->channels / 8;
- c->last_frame = g_malloc(c->frame_bytes);
+ c->last_frame = g_malloc0(c->frame_bytes);
c->last_frame_current = 0;
g_coroutine_signal_emit(channel, signals[SPICE_RECORD_START], 0,
diff --git a/gtk/channel-webdav.c b/gtk/channel-webdav.c
index b8b0993..0529b59 100644
--- a/gtk/channel-webdav.c
+++ b/gtk/channel-webdav.c
@@ -388,7 +388,7 @@ static void client_connected(GObject *source_object,
client->self = self;
client->conn = conn;
client->mux.id = GINT64_TO_LE(client->id);
- client->mux.buf = g_malloc(MAX_MUX_SIZE);
+ client->mux.buf = g_malloc0(MAX_MUX_SIZE);
client->cancellable = g_cancellable_new();
output = g_buffered_output_stream_new(g_io_stream_get_output_stream(G_IO_STREAM(conn)));
@@ -559,7 +559,7 @@ static void spice_webdav_channel_init(SpiceWebdavChannel *channel)
c->cancellable = g_cancellable_new();
c->clients = g_hash_table_new_full(g_int64_hash, g_int64_equal,
NULL, client_remove_unref);
- c->demux.buf = g_malloc(MAX_MUX_SIZE);
+ c->demux.buf = g_malloc0(MAX_MUX_SIZE);
GOutputStream *ostream = g_io_stream_get_output_stream(G_IO_STREAM(c->stream));
c->queue = output_queue_new(ostream);
diff --git a/gtk/controller/test.c b/gtk/controller/test.c
index 851f237..f426669 100644
--- a/gtk/controller/test.c
+++ b/gtk/controller/test.c
@@ -94,13 +94,13 @@ void send_value (uint32_t id, uint32_t value)
void send_data (uint32_t id, uint8_t* data, size_t data_size)
{
size_t size = sizeof (ControllerData) + data_size;
- ControllerData* msg = (ControllerData*)malloc (size);
+ ControllerData* msg = (ControllerData*)g_malloc0 (size);
msg->base.id = id;
msg->base.size = (uint32_t)size;
memcpy (msg->data, data, data_size);
write_to_pipe (msg, size);
- free (msg);
+ g_free (msg);
}
ssize_t read_from_pipe (void* data, size_t size)
diff --git a/gtk/decode-glz.c b/gtk/decode-glz.c
index b09de00..34a7185 100644
--- a/gtk/decode-glz.c
+++ b/gtk/decode-glz.c
@@ -52,7 +52,7 @@ static struct glz_image *glz_image_new(struct glz_image_hdr *hdr,
g_return_val_if_fail(type == LZ_IMAGE_TYPE_RGB32 || type == LZ_IMAGE_TYPE_RGBA, NULL);
- img = spice_new0(struct glz_image, 1);
+ img = g_new0(struct glz_image, 1);
img->hdr = *hdr;
img->surface = alloc_lz_image_surface
(opaque, type == LZ_IMAGE_TYPE_RGBA ? PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8,
@@ -94,7 +94,7 @@ static void glz_decoder_window_resize(SpiceGlzDecoderWindow *w)
SPICE_DEBUG("%s: array resize %d -> %d", __FUNCTION__,
w->nimages, w->nimages * 2);
- new_images = spice_new0(struct glz_image*, w->nimages * 2);
+ new_images = g_new0(struct glz_image*, w->nimages * 2);
for (i = 0; i < w->nimages; i++) {
if (w->images[i] == NULL) {
/*
@@ -440,13 +440,13 @@ void glz_decoder_window_clear(SpiceGlzDecoderWindow *w)
w->nimages = 16;
g_free(w->images);
- w->images = spice_new0(struct glz_image*, w->nimages);
+ w->images = g_new0(struct glz_image*, w->nimages);
w->tail_gap = 0;
}
SpiceGlzDecoderWindow *glz_decoder_window_new(void)
{
- SpiceGlzDecoderWindow *w = spice_new0(SpiceGlzDecoderWindow, 1);
+ SpiceGlzDecoderWindow *w = g_new0(SpiceGlzDecoderWindow, 1);
glz_decoder_window_clear(w);
return w;
}
@@ -463,7 +463,7 @@ void glz_decoder_window_destroy(SpiceGlzDecoderWindow *w)
SpiceGlzDecoder *glz_decoder_new(SpiceGlzDecoderWindow *w)
{
- GlibGlzDecoder *d = spice_new0(GlibGlzDecoder, 1);
+ GlibGlzDecoder *d = g_new0(GlibGlzDecoder, 1);
d->base.ops = &glz_decoder_ops;
d->window = w;
return &d->base;
diff --git a/gtk/decode-jpeg.c b/gtk/decode-jpeg.c
index cce7b53..db54a31 100644
--- a/gtk/decode-jpeg.c
+++ b/gtk/decode-jpeg.c
@@ -165,7 +165,7 @@ static void jpeg_decoder_term_source (j_decompress_ptr cinfo)
SpiceJpegDecoder *jpeg_decoder_new(void)
{
- GlibJpegDecoder *d = spice_new0(GlibJpegDecoder, 1);
+ GlibJpegDecoder *d = g_new0(GlibJpegDecoder, 1);
d->_cinfo.err = jpeg_std_error(&d->_jerr);
jpeg_create_decompress(&d->_cinfo);
diff --git a/gtk/decode-zlib.c b/gtk/decode-zlib.c
index 966fc16..a5325c0 100644
--- a/gtk/decode-zlib.c
+++ b/gtk/decode-zlib.c
@@ -57,7 +57,7 @@ static SpiceZlibDecoderOps zlib_decoder_ops = {
SpiceZlibDecoder *zlib_decoder_new(void)
{
- GlibZlibDecoder *d = spice_new0(GlibZlibDecoder, 1);
+ GlibZlibDecoder *d = g_new0(GlibZlibDecoder, 1);
int z_ret;
d->_z_strm.zalloc = Z_NULL;
diff --git a/gtk/spice-channel.c b/gtk/spice-channel.c
index 1a4a5bf..521f10a 100644
--- a/gtk/spice-channel.c
+++ b/gtk/spice-channel.c
@@ -516,7 +516,7 @@ void spice_msg_in_unref(SpiceMsgIn *in)
if (in->parent) {
spice_msg_in_unref(in->parent);
} else {
- free(in->data);
+ g_free(in->data);
}
g_slice_free(SpiceMsgIn, in);
}
@@ -866,7 +866,7 @@ static void spice_channel_write_msg(SpiceChannel *channel, SpiceMsgOut *out)
spice_channel_write(channel, data, len);
if (free_data)
- free(data);
+ g_free(data);
spice_msg_out_unref(out);
}
@@ -1143,7 +1143,7 @@ static void spice_channel_send_link(SpiceChannel *channel)
c->link_hdr.size += (c->link_msg.num_common_caps +
c->link_msg.num_channel_caps) * sizeof(uint32_t);
- buffer = spice_malloc(sizeof(c->link_hdr) + c->link_hdr.size);
+ buffer = g_malloc0(sizeof(c->link_hdr) + c->link_hdr.size);
p = buffer;
memcpy(p, &c->link_hdr, sizeof(c->link_hdr)); p += sizeof(c->link_hdr);
@@ -1163,7 +1163,7 @@ static void spice_channel_send_link(SpiceChannel *channel)
c->link_msg.num_common_caps,
c->link_msg.num_channel_caps);
spice_channel_write(channel, buffer, p - buffer);
- free(buffer);
+ g_free(buffer);
}
/* coroutine context */
@@ -1191,7 +1191,7 @@ static gboolean spice_channel_recv_link_hdr(SpiceChannel *channel, gboolean *swi
goto error;
}
- c->peer_msg = spice_malloc(c->peer_hdr.size);
+ c->peer_msg = g_malloc0(c->peer_hdr.size);
if (c->peer_msg == NULL) {
g_warning("invalid peer header size: %u", c->peer_hdr.size);
goto error;
@@ -1427,7 +1427,7 @@ static gboolean spice_channel_perform_auth_sasl(SpiceChannel *channel)
goto error;
}
- mechlist = g_malloc(len + 1);
+ mechlist = g_malloc0(len + 1);
spice_channel_read(channel, mechlist, len);
mechlist[len] = '\0';
if (c->has_error) {
@@ -1498,7 +1498,7 @@ restart:
/* NB, distinction of NULL vs "" is *critical* in SASL */
if (len > 0) {
- serverin = g_malloc(len);
+ serverin = g_malloc0(len);
spice_channel_read(channel, serverin, len);
serverin[len - 1] = '\0';
len--;
@@ -1580,7 +1580,7 @@ restart:
/* NB, distinction of NULL vs "" is *critical* in SASL */
if (len) {
- serverin = g_malloc(len);
+ serverin = g_malloc0(len);
spice_channel_read(channel, serverin, len);
serverin[len - 1] = '\0';
len--;
@@ -1780,7 +1780,7 @@ void spice_channel_recv_msg(SpiceChannel *channel,
/* FIXME: do not allow others to take ref on in, and use realloc here?
* this would avoid malloc/free on each message?
*/
- in->data = spice_malloc(msg_size);
+ in->data = g_malloc0(msg_size);
spice_channel_read(channel, in->data, msg_size);
if (c->has_error)
goto end;
@@ -2543,7 +2543,7 @@ static void channel_reset(SpiceChannel *channel, gboolean migrating)
c->fd = -1;
- free(c->peer_msg);
+ g_free(c->peer_msg);
c->peer_msg = NULL;
c->peer_pos = 0;
diff --git a/gtk/spice-client-gtk.override b/gtk/spice-client-gtk.override
index 31e4f9e..41aeee3 100644
--- a/gtk/spice-client-gtk.override
+++ b/gtk/spice-client-gtk.override
@@ -39,21 +39,22 @@ _wrap_spice_display_send_keys(PyGObject *self,
return NULL;
len = PyList_Size(keyList);
- keys = malloc(sizeof(guint)*len);
+ keys = g_malloc0(sizeof(guint)*len);
+
for (i = 0 ; i < len ; i++) {
PyObject *val;
char *sym;
val = PyList_GetItem(keyList, i);
sym = PyString_AsString(val);
if (!sym) {
- free(keys);
+ g_free(keys);
return NULL;
}
keys[i] = gdk_keyval_from_name(sym);
}
spice_display_send_keys(SPICE_DISPLAY(self->obj), keys, len, kind);
- free(keys);
+ g_free(keys);
Py_INCREF(Py_None);
return Py_None;
diff --git a/gtk/spice-session.c b/gtk/spice-session.c
index 7aef787..9c7316e 100644
--- a/gtk/spice-session.c
+++ b/gtk/spice-session.c
@@ -1884,7 +1884,7 @@ void spice_session_channel_new(SpiceSession *session, SpiceChannel *channel)
g_return_if_fail(s != NULL);
g_return_if_fail(channel != NULL);
- item = spice_new0(struct channel, 1);
+ item = g_new0(struct channel, 1);
item->channel = channel;
ring_add(&s->channels, &item->link);
diff --git a/gtk/spice-widget.c b/gtk/spice-widget.c
index 9b835f0..154c43e 100644
--- a/gtk/spice-widget.c
+++ b/gtk/spice-widget.c
@@ -2559,7 +2559,7 @@ GdkPixbuf *spice_display_get_pixbuf(SpiceDisplay *display)
/* TODO: ensure d->data has been exposed? */
g_return_val_if_fail(d->data != NULL, NULL);
- data = g_malloc(d->area.width * d->area.height * 3);
+ data = g_malloc0(d->area.width * d->area.height * 3);
src = d->data;
dest = data;
diff --git a/gtk/usb-device-manager.c b/gtk/usb-device-manager.c
index 1051d10..5013b6c 100644
--- a/gtk/usb-device-manager.c
+++ b/gtk/usb-device-manager.c
@@ -1017,7 +1017,7 @@ static int spice_usb_device_manager_hotplug_cb(libusb_context *ctx,
void *user_data)
{
SpiceUsbDeviceManager *self = SPICE_USB_DEVICE_MANAGER(user_data);
- struct hotplug_idle_cb_args *args = g_malloc(sizeof(*args));
+ struct hotplug_idle_cb_args *args = g_malloc0(sizeof(*args));
args->self = g_object_ref(self);
args->device = libusb_ref_device(device);
--
1.9.3
More information about the Spice-devel
mailing list