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2018-08-10vcl: support for eventfd mq signalingFlorin Coras1-221/+197
- support eventfd based mq signaling. Based on configuration, vcl epoll/select can use either condvars or epoll on mq eventfds. - add vcl support for memfd segments - vpp explicitly registers cut-through segments with apps/vcl - if using eventfd, make ldp allow one call to libc_epoll_create. Needed for the message queue epfd - update svm_queue_t to allow blocking calls with eventfd signaling. Change-Id: I064151ac370bbe29bb16c968bf4e3659c8286bea Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-07-27vcl: use events for epoll/select/read/writeFlorin Coras1-1/+1
Have vcl poll and wait on the event message queues as opposed to constantly polling the session fifos. This also adds event signaling to cut through sessions. On the downside, because we can't wait on multiple condvars, i.e., when we have multiple message queues because of cut-through registrations, we do timed waits. Change-Id: I29ade95dba449659fe46008bb1af502276a7c5fd Signed-off-by: Florin Coras <fcoras@cisco.com>
2018-05-31fix socket send() return size checkqchang1-1/+1
Change-Id: I098c671607c75cb34d04f421b4d16b73f7b47392 Signed-off-by: qchang <qing.chang1@huawei.com>
2018-02-24LDP: Refactor epoll_ctl wrapper.Dave Wallace1-45/+80
- Add AF_UNIX transaction to sock_test_client/server echo test to verify mixed epoll ldp implementation. - Misc cleanup / refactoring of ldp code. - Fix LDP_DEBUG in test/socket_test.sh Change-Id: Ib524c824728f109007d8c4d07d74603b6c687902 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2018-02-23VCL/LDP: Suppress trace output unless debug is enabled.Dave Wallace1-14/+19
Change-Id: Iaef2fe4b8c6b57d54ef6309423c9a0acba8a2f89 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
2018-02-09LD_PRELOAD: Refactor nomenclature (vcom -> ldp).Dave Wallace1-0/+3447
Change-Id: Id3891fe2873b631f8f69c1ca2905968130678561 Signed-off-by: Dave Wallace <dwallacelf@gmail.com>