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Fix not checking errno after calling recv() (#2538)

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There was an issue not checking if recv() set the error value to EWOULDBLOCK or EAGAIN (both equals 11).
If recv() returns 0 that means the connection was gracefully closed from the other side. However, if you are using non-blocking sockets, and recv() returns 0, but sets the errno to EWOULDBLOCK or EAGAIN it means the socket operation would block.
This patch fixes #2537

JerryScript-DCO-1.0-Signed-off-by: Daniel Balla dballa@inf.u-szeged.hu
This commit is contained in:
Daniel Balla 2018-09-24 09:21:35 +02:00 committed by László Langó
parent 35fbcd1ffd
commit 0523278a98
1 changed files with 1 additions and 1 deletions
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2
jerry-ext/debugger/debugger-tcp.c
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@ -78,7 +78,7 @@ jerryx_debugger_tcp_send (jerry_debugger_transport_header_t *header_p, /**< tcp
{
ssize_t is_err = recv (tcp_p->tcp_socket, NULL, 0, MSG_PEEK);
if (is_err == 0)
if (is_err == 0 && errno != EWOULDBLOCK)
{
int err_val = errno;
jerry_debugger_transport_close ();