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svm: queue sub: Add conditional timed wait

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On reviece side svm queue only permits blocking and
non-blocking calls. This patch adds timed wait blocking
functionality which returns either on signal/event or
on given time out.

It also preserves the original behavior, so it will not
hurt client applications which are using svm queue.

Change-Id: Ic10632170330a80afb8bc781d4ccddfe4da2c69a
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
This commit is contained in:
Mohsin Kazmi
2018-01-04 18:57:26 +01:00
committed by Dave Barach
parent e82488f10f
commit 3fca567ff4
13 changed files with 95 additions and 38 deletions
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5
src/vpp-api/vapi/vapi.hpp
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@ -245,7 +245,7 @@ public:
*
* @return VAPI_OK on success, other error code on error
*/
vapi_error_e dispatch (const Common_req *limit = nullptr)
vapi_error_e dispatch (const Common_req *limit = nullptr, u32 time = 5)
{
std::lock_guard<std::mutex> lock (dispatch_mutex);
vapi_error_e rv = VAPI_OK;
@ -254,7 +254,8 @@ public:
{
void *shm_data;
size_t shm_data_size;
rv = vapi_recv (vapi_ctx, &shm_data, &shm_data_size);
rv = vapi_recv (vapi_ctx, &shm_data, &shm_data_size, SVM_Q_TIMEDWAIT,
time);
if (VAPI_OK != rv)
{
return rv;