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Problem: get_opt function read the options value maybe not thread safe

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Solution: use scoped lock to prevent them from being modified during reading
This commit is contained in:
Abama cai 2022-08-10 22:35:14 +08:00
parent 0251be4d77
commit 717d1980ee
1 changed files with 7 additions and 0 deletions
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7
src/ctx.cpp
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@ -328,6 +328,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
switch (option_) {
case ZMQ_MAX_SOCKETS:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _max_sockets;
return 0;
}
@ -342,6 +343,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_IO_THREADS:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _io_thread_count;
return 0;
}
@ -349,6 +351,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_IPV6:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _ipv6;
return 0;
}
@ -356,6 +359,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_BLOCKY:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _blocky;
return 0;
}
@ -363,6 +367,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_MAX_MSGSZ:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _max_msgsz;
return 0;
}
@ -370,6 +375,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_MSG_T_SIZE:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = sizeof (zmq_msg_t);
return 0;
}
@ -377,6 +383,7 @@ int zmq::ctx_t::get (int option_, void *optval_, const size_t *optvallen_)
case ZMQ_ZERO_COPY_RECV:
if (is_int) {
scoped_lock_t locker (_opt_sync);
*value = _zero_copy;
return 0;
}