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| author | Manuel Stoeckl <code@mstoeckl.com> | 2020-09-26 21:14:16 -0400 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2021-07-20 09:20:38 +0000 |
| commit | ada25fbd526dec116026cb2567a912b47890ad05 (patch) | |
| tree | 750876704312eb5338d14c32a3db4eace7e9ed4b /src/connection.c | |
| parent | wayland-util: avoid memcpy(NULL) in wl_array_copy() (diff) | |
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client: print discarded events in debug log
Before this patch, setting WAYLAND_DEBUG=1 or WAYLAND_DEBUG=client made
a program log all requests sent and events that it processes. However,
some events received are not processed. This can happen when a Wayland
server sends an event to an object that does not exist, or was recently
destroyed by the client program (either before the event was decoded,
or after being decoded but before being dispatched.)
This commit prints all discarded messages in the debug log, producing
lines like:
[1234567.890] discarded [unknown]@42.[event 0](0 fd, 12 byte)
[1234567.890] discarded wl_callback@3.done(34567)
[1234567.890] discarded [zombie]@13.[event 1](3 fd, 8 byte)
The first indicates an event to an object that does not exist; the
second, an event to an object that was deleted after decoding, but
before dispatch; the third, an event to an object that left a
'zombie' marker behind to indicate which events have associated
file descriptors.
Signed-off-by: Manuel Stoeckl <code@mstoeckl.com>
Diffstat (limited to 'src/connection.c')
| -rw-r--r-- | src/connection.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/connection.c b/src/connection.c index ccbb972..91d00c5 100644 --- a/src/connection.c +++ b/src/connection.c @@ -1263,7 +1263,8 @@ wl_closure_queue(struct wl_closure *closure, struct wl_connection *connection) } void -wl_closure_print(struct wl_closure *closure, struct wl_object *target, int send) +wl_closure_print(struct wl_closure *closure, struct wl_object *target, + int send, int discarded) { int i; struct argument_details arg; @@ -1274,8 +1275,9 @@ wl_closure_print(struct wl_closure *closure, struct wl_object *target, int send) clock_gettime(CLOCK_REALTIME, &tp); time = (tp.tv_sec * 1000000L) + (tp.tv_nsec / 1000); - fprintf(stderr, "[%10.3f] %s%s@%u.%s(", + fprintf(stderr, "[%10.3f] %s%s%s@%u.%s(", time / 1000.0, + discarded ? "discarded " : "", send ? " -> " : "", target->interface->name, target->id, closure->message->name); |