Hi Nhat Pham,
Because of this changes interduced an error "osafckptnd[19133]:
ncs_sel_obj_ind: write failed - Bad file descriptor"
which is reported in https://sourceforge.net/p/opensaf/tickets/1830/.
In patch of #1821 changed order of sel_obj_ind & _sel_obj_create,
fist doing indication on `cb->clm_updated_sel_obj` then create
`cb->clm_updated_sel_obj` , please correct.
===========================================================================
1) main()->__init_cpnd()->cpnd_lib_req()->cpnd_lib_init()->cpnd_clm_init()->
/* Notify main process to update clm select object */
ncs_sel_obj_ind(&cb->clm_updated_sel_obj);
2) main()->cpnd_main_process()->
ncs_sel_obj_create(&cb->clm_updated_sel_obj);
===========================================================================
-AVM
On 5/13/2016 1:31 PM, Nhat Pham wrote:
> Hi Mahesh,
>
> In osaf/services/saf/amf/amfnd/main.cc, I think there is a fault case.
> The fds[FD_CLM].fd is updated once before start the while loop.
> Thus, the fds[FD_CLM].fd is not updated in case cb->clm_sel_obj is updated.
> As result, if the cb->clm_sel_obj is different with the previous one. The
> amfnd doesn't poll() correct fds[FD_CLM].fd.
>
> Regarding "- Not tested/hit the new thread code of saClmDispatch() fail
> case.", The saClmDispatch() fail case happens when a SC is up after headless
> state.
>
> If you agree to keep the V2, could you please help to push the patch?
> Thanks.
>
> Best regards,
> Nhat Pham
>
> -----Original Message-----
> From: A V Mahesh [mailto:mahesh.va...@oracle.com]
> Sent: Friday, May 13, 2016 11:20 AM
> To: Nhat Pham <nhat.p...@dektech.com.au>; anders.wid...@ericsson.com
> Cc: opensaf-devel@lists.sourceforge.net
> Subject: Re: [PATCH 1 of 1] cpnd: To improve handling fault code returned by
> saClmInitialize [#1821] V2
>
> Hi Nhat Pham,
>
> ACK with following :
>
> We can still optimize the code with single FD_CLM ( smiler was achieved in
> osaf/services/saf/amf/amfnd/main.cc )
>
> - Done normal node bring-up
> - Not tested/hit the new thread code of saClmDispatch() fail case.
> - Simulate the problem before pushing.
>
> -AVM
>
>
> On 5/12/2016 8:49 AM, wrote:
>> osaf/libs/common/cpsv/include/cpnd_cb.h | 2 +
>> osaf/services/saf/cpsv/cpnd/cpnd_init.c | 213
> ++++++++++++++++++++++++-------
>> 2 files changed, 163 insertions(+), 52 deletions(-)
>>
>>
>> There are 2 places where the saClmInitialize() is called.
>> 1. At start up time, in cpnd_lib_init() (cpnd_init.c) 2. In
>> cpnd_main_process() (cpnd_init.c), when saClmDispatch() returns
> SA_AIS_ERR_BAD_HANDLE.
>> The solution is:
>> For case 1: initialize clm is retried on the current executing thread.
>> (i.e not creating new thread) For case 2: a new thread is created to
> initialize clm.
>> diff --git a/osaf/libs/common/cpsv/include/cpnd_cb.h
>> b/osaf/libs/common/cpsv/include/cpnd_cb.h
>> --- a/osaf/libs/common/cpsv/include/cpnd_cb.h
>> +++ b/osaf/libs/common/cpsv/include/cpnd_cb.h
>> @@ -321,6 +321,8 @@ typedef struct cpnd_cb_tag {
>> bool scAbsenceAllowed;
>> bool shm_alloc_guaranteed;
>>
>> + NCS_SEL_OBJ clm_updated_sel_obj; /* The CLM select object updated
>> +event */
>> +
>> } CPND_CB;
>>
>> /* CB prototypes */
>> diff --git a/osaf/services/saf/cpsv/cpnd/cpnd_init.c
>> b/osaf/services/saf/cpsv/cpnd/cpnd_init.c
>> --- a/osaf/services/saf/cpsv/cpnd/cpnd_init.c
>> +++ b/osaf/services/saf/cpsv/cpnd/cpnd_init.c
>> @@ -30,12 +30,14 @@
>> #include <daemon.h>
>> #include "cpnd.h"
>> #include "osaf_poll.h"
>> +#include "osaf_time.h"
>>
>> enum {
>> FD_TERM,
>> FD_MBX,
>> FD_AMF,
>> FD_CLM,
>> + FD_CLM_UPDATED,
>> NUMBER_OF_FDS
>> };
>>
>> @@ -57,6 +59,10 @@ static uint32_t cpnd_cb_db_destroy(CPND_
>>
>> static bool cpnd_clear_mbx(NCSCONTEXT arg, NCSCONTEXT msg);
>>
>> +static SaAisErrorT cpnd_clm_init(void);
>> +
>> +static SaAisErrorT cpnd_start_clm_init_bg();
>> +
>> void cpnd_main_process(CPND_CB *cb);
>>
>>
>> /*********************************************************************
>> ******* @@ -173,16 +179,10 @@ static uint32_t cpnd_lib_init(CPND_CREAT
>> void *shm_ptr;
>> GBL_SHM_PTR gbl_shm_addr;
>> memset(&cpnd_open_req, '\0', sizeof(cpnd_open_req));
>> - SaVersionT clm_version;
>> - SaClmClusterNodeT cluster_node;
>> - SaClmHandleT clmHandle;
>>
>> - m_CPSV_GET_AMF_VER(clm_version);
>> - SaClmCallbacksT gen_cbk;
>> char *ptr;
>>
>> TRACE_ENTER();
>> - memset(&cluster_node, 0, sizeof(SaClmClusterNodeT));
>>
>> /* allocate a CB */
>> cb = m_MMGR_ALLOC_CPND_CB;
>> @@ -237,38 +237,14 @@ static uint32_t cpnd_lib_init(CPND_CREAT
>> LOG_ER("cpnd ipc attach failed");
>> goto cpnd_ipc_att_fail;
>> }
>> - gen_cbk.saClmClusterNodeGetCallback = NULL;
>> - gen_cbk.saClmClusterTrackCallback = cpnd_clm_cluster_track_cb;
>> - rc = saClmInitialize(&clmHandle, &gen_cbk, &clm_version);
>> - while (rc == SA_AIS_ERR_TRY_AGAIN) {
>> - usleep(1000000);
>> - rc = saClmInitialize(&clmHandle, &gen_cbk, &clm_version);
>> - }
>>
>> + /* Initalize the CLM service */
>> + rc = cpnd_clm_init();
>> if (rc != SA_AIS_OK) {
>> LOG_ER("cpnd clm init failed with return value:%d",rc);
>> goto cpnd_clm_init_fail;
>> }
>> - cb->clm_hdl = clmHandle;
>>
>> - if (SA_AIS_OK != (rc = saClmSelectionObjectGet(cb->clm_hdl,
> &cb->clm_sel_obj))) {
>> - LOG_ER("cpnd clm selection object Get failed with return
> value:%d",rc);
>> - TRACE_LEAVE();
>> - return rc;
>> - }
>> -
>> - rc = saClmClusterNodeGet(cb->clm_hdl, SA_CLM_LOCAL_NODE_ID,
> CPND_CLM_API_TIMEOUT, &cluster_node);
>> - if (rc != SA_AIS_OK) {
>> - LOG_ER("cpnd clm node get failed with return value:%d",rc);
>> - goto cpnd_clm_fail;
>> - }
>> - cb->nodeid = cluster_node.nodeId;
>> -
>> - rc = saClmClusterTrack(cb->clm_hdl, (SA_TRACK_CURRENT |
> SA_TRACK_CHANGES), NULL);
>> - if (rc != SA_AIS_OK) {
>> - LOG_ER("cpnd clm clusterTrack failed with return
> value:%d",rc);
>> - goto cpnd_clm_fail;
>> - }
>> /* Initialise with the AMF service */
>> if (cpnd_amf_init(cb) != NCSCC_RC_SUCCESS) {
>> LOG_ER("cpnd amf init failed");
>> @@ -283,7 +259,7 @@ static uint32_t cpnd_lib_init(CPND_CREAT
>>
>> /* CODE FOR THE NO REDUNDANCY */
>> memset(&gbl_shm_addr, 0, sizeof(GBL_SHM_PTR));
>> - shm_ptr = cpnd_restart_shm_create(&cpnd_open_req, cb,
> cluster_node.nodeId);
>> + shm_ptr = cpnd_restart_shm_create(&cpnd_open_req, cb, cb->nodeid);
>> if (shm_ptr) {
>> gbl_shm_addr.base_addr = shm_ptr; /* Store base
> address of shared memory, but not used for any operations as of now */
>> gbl_shm_addr.cli_addr = shm_ptr + sizeof(CPND_SHM_VERSION);
> @@
>> -340,9 +316,6 @@ static uint32_t cpnd_lib_init(CPND_CREAT
>> cpnd_mds_fail:
>> m_NCS_TASK_STOP(cb->task_hdl);
>>
>> - cpnd_clm_fail:
>> - saClmFinalize(cb->clm_hdl);
>> -
>> cpnd_clm_init_fail:
>> m_NCS_IPC_DETACH(&cb->cpnd_mbx, cpnd_clear_mbx, cb);
>>
>> @@ -533,6 +506,10 @@ void cpnd_main_process(CPND_CB *cb)
>> struct pollfd fds[NUMBER_OF_FDS];
>> int term_fd;
>>
>> + ncs_sel_obj_create(&cb->clm_updated_sel_obj);
>> + fds[FD_CLM_UPDATED].fd =
> m_GET_FD_FROM_SEL_OBJ(cb->clm_updated_sel_obj);
>> + fds[FD_CLM_UPDATED].events = POLLIN;
>> +
>> mbx_fd = ncs_ipc_get_sel_obj(&cb->cpnd_mbx);
>> fds[FD_MBX].fd = m_GET_FD_FROM_SEL_OBJ(mbx_fd);
>> fds[FD_MBX].events = POLLIN;
>> @@ -578,31 +555,22 @@ void cpnd_main_process(CPND_CB *cb)
>> }
>> }
>>
>> + /* process all the CLM messages */
>> if (fds[FD_CLM].revents & POLLIN) {
>> clm_error = saClmDispatch(cb->clm_hdl,
> SA_DISPATCH_ALL);
>> if (clm_error == SA_AIS_ERR_BAD_HANDLE) {
>> - SaVersionT clm_version;
>> - SaClmHandleT clmHandle;
>> - SaClmCallbacksT gen_cbk;
>> + LOG_NO("Bad CLM handle. Reinitializing.");
>> + osaf_nanosleep(&kHundredMilliseconds);
>>
>> - LOG_NO("Bad CLM handle. Reinitializing.");
>> - usleep(100000);
>> + cpnd_start_clm_init_bg();
>>
>> - m_CPSV_GET_AMF_VER(clm_version);
>> - gen_cbk.saClmClusterNodeGetCallback = NULL;
>> - gen_cbk.saClmClusterTrackCallback =
> cpnd_clm_cluster_track_cb;
>> -
>> - clm_error = saClmInitialize(&clmHandle,
> &gen_cbk, &clm_version);
>> - if (clm_error != SA_AIS_OK) {
>> - LOG_ER("cpnd clm init failed with
> return value:%d", clm_error);
>> - TRACE_LEAVE();
>> - return;
>> - }
>> - cb->clm_hdl = clmHandle;
>> + /* Ignore the FD_CLM */
>> + fds[FD_CLM].fd = -1;
>> } else if (clm_error != SA_AIS_OK) {
>> LOG_ER("cpnd clm dispatch failure %u",
> clm_error);
>> }
>> }
>> +
>> /* process the CPND Mail box */
>> if (fds[FD_MBX].revents & POLLIN) {
>>
>> @@ -611,7 +579,148 @@ void cpnd_main_process(CPND_CB *cb)
>> cpnd_process_evt(evt);
>> }
>> }
>> +
>> + /* process the CLM object updated event */
>> + if (fds[FD_CLM_UPDATED].revents & POLLIN) {
>> + fds[FD_CLM].fd = cb->clm_sel_obj;
>> + LOG_NO("CLM selection object was updated. (%lld)",
>> +cb->clm_sel_obj);
>> +
>> + ncs_sel_obj_rmv_ind(&cb->clm_updated_sel_obj, true,
> true);
>> + }
>> }
>> TRACE_LEAVE();
>> return;
>> }
>> +
>>
> +/**************************************************************************
> **
>> + * Name : cpnd_clm_init
>> + *
>> + * Description : This function initialize CLM, get Node Id, and enalbe
>> + * tracking callback.
>> + *
>> + * Arguments : -
>> + *
>> + * Return Values : -
>> + *
>> + * Notes : None.
>> +
>> +*********************************************************************
>> +********/ static SaAisErrorT cpnd_clm_init(void)
>> +{
>> + CPND_CB *cb = NULL;
>> + SaAisErrorT rc = SA_AIS_OK;
>> + SaVersionT clm_version;
>> + SaClmClusterNodeT cluster_node;
>> + SaClmHandleT clmHandle;
>> + m_CPSV_GET_AMF_VER(clm_version);
>> + SaClmCallbacksT gen_cbk;
>> +
>> + cb = m_CPND_TAKE_CPND_CB;
>> +
>> + TRACE_ENTER();
>> +
>> + memset(&cluster_node, 0, sizeof(SaClmClusterNodeT));
>> +
>> + gen_cbk.saClmClusterNodeGetCallback = NULL;
>> + gen_cbk.saClmClusterTrackCallback = cpnd_clm_cluster_track_cb;
>> + rc = saClmInitialize(&clmHandle, &gen_cbk, &clm_version);
>> + while (rc == SA_AIS_ERR_TRY_AGAIN || rc == SA_AIS_ERR_TIMEOUT ||
>> + rc == SA_AIS_ERR_NO_RESOURCES || rc ==
> SA_AIS_ERR_UNAVAILABLE) {
>> + if (rc != SA_AIS_ERR_TRY_AGAIN) {
>> + LOG_WA("cpnd_lib_init: saClmInitialize returned %u",
> rc);
>> + }
>> + osaf_nanosleep(&kHundredMilliseconds);
>> + rc = saClmInitialize(&clmHandle, &gen_cbk, &clm_version);
>> + }
>> +
>> + if (rc != SA_AIS_OK) {
>> + LOG_ER("cpnd clm init failed with return value:%d",rc);
>> + goto cpnd_clm_initialize_fail;
>> + }
>> +
>> + cb->clm_hdl = clmHandle;
>> +
>> + if (SA_AIS_OK != (rc = saClmSelectionObjectGet(cb->clm_hdl,
> &cb->clm_sel_obj))) {
>> + LOG_ER("cpnd clm selection object Get failed with return
> value:%d",rc);
>> + goto cpnd_clm_fail;
>> + }
>> +
>> + TRACE("cpnd clm selection object = %lld", cb->clm_sel_obj);
>> +
>> + rc = saClmClusterNodeGet(cb->clm_hdl, SA_CLM_LOCAL_NODE_ID,
> CPND_CLM_API_TIMEOUT, &cluster_node);
>> + if (rc != SA_AIS_OK) {
>> + LOG_ER("cpnd clm node get failed with return value:%d",rc);
>> + goto cpnd_clm_fail;
>> + }
>> + cb->nodeid = cluster_node.nodeId;
>> +
>> + rc = saClmClusterTrack(cb->clm_hdl, (SA_TRACK_CURRENT |
> SA_TRACK_CHANGES), NULL);
>> + if (rc != SA_AIS_OK) {
>> + LOG_ER("cpnd clm clusterTrack failed with return
> value:%d",rc);
>> + goto cpnd_clm_fail;
>> + }
>> +
>> + /* Notify main process to update clm select object */
>> + ncs_sel_obj_ind(&cb->clm_updated_sel_obj);
>> +
>> + TRACE_LEAVE();
>> + return rc;
>> +
>> + cpnd_clm_fail:
>> + saClmFinalize(cb->clm_hdl);
>> +
>> + cpnd_clm_initialize_fail:
>> + TRACE_LEAVE();
>> + return rc;
>> +}
>> +
>>
> +/**************************************************************************
> **
>> + * Name : cpnd_clm_init_thread
>> + *
>> + * Description : This function is thread function to initialize clm
>> + *
>> + * Arguments : -
>> + *
>> + * Return Values : -
>> + *
>> + * Notes : None.
>> +
>> +*********************************************************************
>> +********/ static void* cpnd_clm_init_thread(void* arg) {
>> + TRACE_ENTER();
>> +
>> + SaAisErrorT rc = cpnd_clm_init();
>> + if (rc != SA_AIS_OK) {
>> + exit(EXIT_FAILURE);
>> + }
>> +
>> + TRACE_LEAVE();
>> + return NULL;
>> +}
>> +
>>
> +/**************************************************************************
> **
>> + * Name : cpnd_start_clm_init_bg
>> + *
>> + * Description : This function is to start initialize clm thread
>> + *
>> + * Arguments : -
>> + *
>> + * Return Values : -
>> + *
>> + * Notes : None.
>> +
>> +*********************************************************************
>> +********/ static SaAisErrorT cpnd_start_clm_init_bg() {
>> + pthread_t thread;
>> + pthread_attr_t attr;
>> + pthread_attr_init(&attr);
>> + pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
>> +
>> + if (pthread_create(&thread, &attr, cpnd_clm_init_thread, NULL) != 0)
> {
>> + LOG_ER("pthread_create FAILED: %s", strerror(errno));
>> + exit(EXIT_FAILURE);
>> + }
>> +
>> + pthread_attr_destroy(&attr);
>> +
>> + return SA_AIS_OK;
>> +}
>
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