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Diffstat (limited to 'src/overlays.c')
-rw-r--r--src/overlays.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/src/overlays.c b/src/overlays.c
index 0b77db3..a5f3713 100644
--- a/src/overlays.c
+++ b/src/overlays.c
@@ -218,14 +218,17 @@ vwm_overlays_t * vwm_overlays_create(vwm_xserver_t *xserver)
overlays = calloc(1, sizeof(vwm_overlays_t));
if (!overlays) {
VWM_PERROR("unable to allocate vwm_overlays_t");
- return NULL;
+ goto _err;
}
overlays->xserver = xserver;
overlays->prev_sampling_interval = overlays->sampling_interval = 0.1f; /* default to 10Hz */
- /* initialize libvmon */
- vmon_init(&overlays->vmon, VMON_FLAG_2PASS, VMON_WANT_SYS_STAT, (VMON_WANT_PROC_STAT | VMON_WANT_PROC_FOLLOW_CHILDREN | VMON_WANT_PROC_FOLLOW_THREADS));
+ if (!vmon_init(&overlays->vmon, VMON_FLAG_2PASS, VMON_WANT_SYS_STAT, (VMON_WANT_PROC_STAT | VMON_WANT_PROC_FOLLOW_CHILDREN | VMON_WANT_PROC_FOLLOW_THREADS))) {
+ VWM_ERROR("unable to initialize libvmon");
+ goto _err_overlays;
+ }
+
overlays->vmon.proc_ctor_cb = vmon_ctor_cb;
overlays->vmon.proc_dtor_cb = vmon_dtor_cb;
overlays->vmon.sample_cb = sample_callback;
@@ -234,6 +237,10 @@ vwm_overlays_t * vwm_overlays_create(vwm_xserver_t *xserver)
/* get all the text and graphics stuff setup for overlays */
overlays->overlay_font = XLoadQueryFont(xserver->display, OVERLAY_FIXED_FONT);
+ if (!overlays->overlay_font) {
+ VWM_ERROR("unable to load overlay font \"%s\"", OVERLAY_FIXED_FONT);
+ goto _err_vmon;
+ }
/* create a GC for rendering the text using Xlib into the text overlay stencils */
bitmask = create_pixmap(overlays, 1, 1, OVERLAY_MASK_DEPTH);
@@ -258,6 +265,15 @@ vwm_overlays_t * vwm_overlays_create(vwm_xserver_t *xserver)
XRenderFillRectangle(xserver->display, PictOpSrc, overlays->finish_fill, &overlay_trans_color, 0, 1, 1, 1);
return overlays;
+
+_err_vmon:
+ vmon_destroy(&overlays->vmon);
+
+_err_overlays:
+ free(overlays);
+
+_err:
+ return NULL;
}
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