Rework connect functions for upcoming non-blocking mode. As we are here
make some variables names shorter and more descriptive.
Change-Id: Ifcba24fc16f0931261067f6c2bf64eef450d0ec9
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/429912
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
As preparation for non blocking mode make the
spdk_jsonrpc_client_send_request functon just queue the request. Then in
spdk_jsonrpc_client_recv_response we actually send it. Without this
change send function will stay blocking.
Change-Id: Ida2290696d78afcb06d84a4538b74e2311043911
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/429910
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
As a step toward non-blocking JSON RPC client change the the way we
retrive the response.
Now we retrive full response by calling
spdk_jsonrpc_client_recv_response(). If response is ready it will be
parsed to spdk_jsonrpc_client_response object then user can issue
spdk_jsonrpc_client_get_response() to get the response object. When
processing response object is done the user calls
spdk_jsonrpc_client_free_response() to free it.
This logic will simplify both non-blocking mode and multiple response
handling.
Change-Id: I737d8a34283f4a68795d6bc6ba0c8646b7ae3319
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/429262
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Capture json version by reference so we don't need to call free() in
parse_single_response.
Change-Id: Ia97fa484ca9ff8692a15160878b625b57d7f4b9e
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/429261
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
In JSON RPC the ID is optional. Method is mandatory but user might want
to produce the name later or by using
spdk_json_write_named_string_fmt(). This patch also changes the argument
order.
Change-Id: Ifbd35b8c93e684d15731c4ba1d18bf68d1e8a068
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/429254
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
It's a C libary for client to call rpc method.
Change-Id: I5378747bd9dab83a41801225ba794b3910d1f5a5
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/424061
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Decrementing struct spdk_jsonrpc_server_conn::outstanding_requests
should be atomic since this variable are accesed from multiple threads.
Istead of that just route the request back to the server thread with
nothing to send.
As we are here change spdk_jsonrpc_server_send_response() to take only
struct spdk_jsonrpc_request parameter.
Change-Id: I9b856e7d530355cea43a29f58f4f9405e7e35fc2
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/422124
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The spdk_jsonrpc_server_conn_remove() was just swapping last connection
with that is being removed. This was fine but not for BSD queues which
rely on its own address.
Simple fix would be to add STAILQ_INIT and STAILQ_SWAP for queued
requests but we can hit the same nasty and easy to overlook bug in
future. Instead convert connection array to linked list and move around
only pointers.
Fixes#322
Change-Id: Ibb359d281f6164bcd17df37ba9d31ffdb46c2e0a
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/414257
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
The decoder was still marked as required, so omitting "jsonrpc" version
from the request did not work.
Change-Id: Ied6a8bb1fbbf072c5eff87ed0b343edd7b3702b3
Fixes: aa67900a2e ("jsonrpc: make "jsonrpc" request field optional")
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/412859
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The "jsonrpc" field, per spec, is meant to contain the exact string
"2.0" to indicate the version of the JSON-RPC specification implemented
by the client. We don't do anything useful with this information except
to drop requests for (theoretical) other versions, so it should be safe
to allow the parameter to be optional. If the version is specified, we
will still validate that it is 2.0.
This enables interoperability with a Go JSON-RPC client, as mentioned in
issue #303: https://godoc.org/github.com/mafredri/cdp/rpcc
Change-Id: Ifde32b3f47a5d7942f4ab74b4d6029dd0168efa8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/411742
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Prepare to use RPC server before env initialization when we can't use
struct spdk_ring yet.
Change-Id: I0d37fcdd7bf162d6a25baa050efa0421fdcf9599
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/407207
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reallocate the send buffer if more data is written by the RPC handler
than currently fits in the buffer.
Change-Id: I590dd173b843aba48c768adfafaf87e4b47bcc19
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/399925
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This patch remove need for additional buffer when translating error code
to string.
Change-Id: Iaa60088b5c450581d3cdddbb425119b17d55a44b
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/386114
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Disambiguate the log components from the trace functionality
(include/spdk/trace.h).
The internal spdk_trace_flag structure and related functions will be
renamed in a later commit - this is just a find and replace on
SPDK_TRACE_* and SPDK_LOG_REGISTER_TRACE_FLAG().
Change-Id: I617bd5a9fbe35ffb44ae6020b292658c094a0ad6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376421
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
There are two ways to set stockets to nonblocking type:
- ioctl with FIONBIO
- fcntl with O_NONBLOCK
Those two should be equivalent for sockets used in SPDK.
During testing it was shown that VPP interprets only
the second type, so this patch changes all occurences of it.
When here, more descriptive error logs were set in case of
failure.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ifa5b30e3a4fa04fe23f41fa2ae9dab4b01dd7d3c
Reviewed-on: https://review.gerrithub.io/388816
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This matches the name to the behavior and prepares for addition of a new
log macro for "info" log level.
Change-Id: I94ccd49face4309d3368e399528776ab140748c4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375833
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
replaces all references to strerror in the spdk lib directory with
references to the thread safe strerror_r
Change-Id: I80d946cce3299007ee10500b93f7e1c8e503ee41
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/374012
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Change-Id: Ib756212d227fb71b9ef3d486223740e4cb152815
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/370200
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This was left behind in commit 122e28465 ("jsonrpc: move closed conn
handling before poll()"). It is not needed now that the closed
connection handling is in a loop by itself.
Change-Id: I09959003bc6a370f1621815aebdd428be3304e5e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369906
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
recv() returns 0 when the remote end of the connection is shut down, but
there is no such rule for send(). Remove the incorrect treatment of
send() returning 0 as an error. The remaining code will treat a send()
return value of 0 as a non-error condition and will continue to work
correctly.
Change-Id: Ia753b802d95428104a62d1acb13c5fa437add6b4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369299
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
If a connection is closed by the remote end, the JSON-RPC server could
potentially call poll() on the pollfd containing the invalid file
descriptor. Rework the logic so that the pollfd's fd field is set to a
negative value so that poll() will ignore it until the connection is
fully cleaned up by spdk_jsonrpc_server_conn_remove().
Also add handling for the potential error conditions returned by poll()
so that if something does go wrong, the server doesn't get stuck polling
a broken pollfd forever.
Change-Id: Id02e3a230740c8ffd513888cb0564891b3aca069
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369285
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Make sure that we check any closed connections even if poll() indicates
that no sockets are ready, since closed sockets won't ever trigger
poll().
Change-Id: Ie543cc2848d07f3d8e22662cb22c3d0f5cf3d174
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/369292
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Move the per-connection send buffer into each request, and allow a
connection to have a queue of responses ready to be sent.
Change-Id: If6b2151691c4cd76f3cf7cde0cdd8f20cac77ceb
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368470
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This will be necessary when the lifetime of a request can exceed the
lifetime of the values stored in spdk_jsonrpc_server_conn.
Change-Id: Icd9772eb142e3f6ae69303aff1e12bc213f435a4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368455
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This will greatly simplify the implementation of asynchronous requests,
and asynchronous requests also allow clients to submit multiple
overlapped requests, making batches unnecessary for executing multiple
RPCs at once. Additionally, our RPC client (scripts/rpc.py) does not
use batch requests.
Change-Id: I2529793c54b43acbacd934d82926aa32e286210c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368449
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This will enable asynchronous request handling in a future patch, and it
also removes the need for the RPC handlers to know about request id and
the JSON-RPC rules about notification-only requests.
Change-Id: I25aaa8e48bff8d5594ffcccecb61842b1e31ec3c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368225
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
SPDK_COUNTOF works like sizeof, except it returns the number of elements
in an array instead of the number of bytes.
Change-Id: I38ff4dd3485ed9b630cc5660ff84851d0031911f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The SPDK_TRACELOG macro depends on a CONFIG setting (DEBUG), so it
should not be part of the public API.
Create a new include/spdk_internal directory for headers that should
only be used within SPDK, not exported for public use.
Change-Id: I39b90ce57da3270e735ba32210c4b3a3468c460b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Explicitly include spdk.common.mk at the top of all lib Makefiles so
that CONFIG options and other predefined variables are set.
Change-Id: I1e560c294fe8242602e45191a280f4295533ae44
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
