Hi Dave,
Thanks for your help!
In the test.c , I see "if (async) { *send-ping* ".
And vac_connect's 3rd input-param set to NULL, I want the operation-by-c-api to
be synch.
Even no change, it (src/vpp-api/client) can not work successfully.
Is there something wrong?
Maybe, should I follow another example?
Can you give me a example that can dump sw_interfaces?
Be deeply grateful.
wangchuan...@163.com
From: Dave Barach (dbarach)
Date: 2018-09-11 21:10
To: wangchuan...@163.com; vpp-dev@lists.fd.io
Subject: RE: [vpp-dev] VPP's C-type-api example
The typical coding pattern to use when you don’t know how many messages will
come back: send a dump request, followed by an echo-ping.
When the ping reply shows up, the dump is complete...
HTH... Dave
From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of
wangchuan...@163.com
Sent: Tuesday, September 11, 2018 4:34 AM
To: vpp-dev <vpp-dev@lists.fd.io>
Subject: [vpp-dev] VPP's C-type-api example
Hi all,
I code my example following src/vpp-api/client, but do {vac_read}while(1)
often block when the results-num does not know.
It shows pthread_cond_wait when gdb.
Help please!
Thanks very much!
void printIntefaces()
{
api_main_t * am = &api_main;
vl_api_sw_interface_dump_t message;
M_NOALLOC(SW_INTERFACE_DUMP);
message.name_filter_valid = 0;
strcpy(message.name_filter, "Gigabit");
vac_write((char *)&message, sizeof(message));
char* pMsg = NULL;
int nLen = 0;
int ret = 0;
int nCount = 0;
do {
printf("begin interface read .. \n");
ret = vac_read(&pMsg, &nLen, 1);
printf("begin interface end .. \n");
if(ret != -1)
{
vl_api_sw_interface_details_t* pSV = (vl_api_sw_interface_details_t*)pMsg;
printf("%lu:%s \n", ntohl(pSV->sw_if_index), pSV->interface_name);
vac_free(pMsg);
nCount += 1;
}
else{
break;
}
}while(1);
printf("get real count[%d] \n", nCount);
}
wangchuan...@163.com
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