#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<sys/un.h>
#include<errno.h>
//define send and recv buf size
#define BUFSIZE 250*1024
//define unix domain socket path
#define pmmanager "/tmp/pmmanager"
#define pmapi "/tmp/pmapi"
int main(int argc, char** argv)
{
char tx_buf[BUFSIZE];
int pmapi_fd, ret;
socklen_t len;
struct sockaddr_un pmmanager_addr, pmapi_addr;
//create pmmanager socket fd
pmapi_fd = socket(AF_UNIX, SOCK_DGRAM, 0);
if(pmapi_fd == -1)
{
perror("cannot create pmapi fd.");
}
unlink(pmapi);
//configure pmapi's addr
memset(&pmapi_addr, 0, sizeof(pmapi_addr));
pmapi_addr.sun_family = AF_UNIX;
strncpy(pmapi_addr.sun_path, pmapi, sizeof(pmapi_addr.sun_path)-1);
//bind pmapi_fd to pmapi_addr
ret = bind(pmapi_fd, (struct sockaddr*)&pmapi_addr, sizeof(pmapi_addr));
if(ret == -1)
{
perror("bind error.");
}
int sendBufSize;
len = sizeof(sendBufSize);
ret = getsockopt(pmapi_fd, SOL_SOCKET, SO_SNDBUF, &sendBufSize, &len);
if(ret ==-1)
{
perror("getsocket error.");
}
printf("Before setsockopt, SO_SNDBUF-%d\n",sendBufSize);
sendBufSize = 512*1024;
ret = setsockopt(pmapi_fd, SOL_SOCKET, SO_SNDBUF, &sendBufSize, len);
if(ret == -1)
{
perror("setsockopt error.");
}
ret = getsockopt(pmapi_fd, SOL_SOCKET, SO_SNDBUF, &sendBufSize, &len);
if(ret ==-1)
{
perror("getsocket error.");
}
printf("Set send buf successful, SO_SNDBUF-%d\n\n\n", sendBufSize);
//configure pmmanager's addr
memset(&pmmanager_addr, 0, sizeof(pmmanager_addr));
pmmanager_addr.sun_family = AF_UNIX;
strncpy(pmmanager_addr.sun_path, pmmanager, sizeof(pmmanager_addr)-1);
len = sizeof(pmmanager_addr);
int sendSize = 0;
int i;
for(i=1; i<=4; i++)
{
memset(tx_buf, '0', sizeof(tx_buf));
sprintf(tx_buf, "send msg %d to pmmanager.", i);
printf("%s, msg size - %d\n",tx_buf, sizeof(tx_buf));
sendSize = sendto(pmapi_fd, tx_buf, sizeof(tx_buf), 0, (struct sockaddr*)&pmmanager_addr, len);
if(sendSize == -1)
{
perror("sendto error.");
}
printf("Send message to pmmanager: %s\n\n\n", tx_buf);
}
}
服务器端
未果，还是返回这个错误。（其它路径下的相关选项也试了，不行）
