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Abort when receiving 0 bytes in IPC call

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When sway crashes a swaybar process is sometimes left behind running at
100% CPU. This was caused by the swaybar trying to retrieve an IPC
response from the closed sway socket.

This patch fixes the problem by aborting when the socket has been closed
(recv return 0).

Fix #528
This commit is contained in:
Mikkel Oscar Lyderik 2016-03-22 11:27:36 +01:00
parent 4ce1ab8a26
commit 1d010afbf7
1 changed files with 1 additions and 1 deletions
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2
common/ipc-client.c
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@ -47,7 +47,7 @@ struct ipc_response *ipc_recv_response(int socketfd) {
size_t total = 0; size_t total = 0;
while (total < ipc_header_size) { while (total < ipc_header_size) {
ssize_t received = recv(socketfd, data + total, ipc_header_size - total, 0); ssize_t received = recv(socketfd, data + total, ipc_header_size - total, 0);
if (received < 0) { if (received <= 0) {
sway_abort("Unable to receive IPC response"); sway_abort("Unable to receive IPC response");
} }
total += received; total += received;