static void
GetChnFontData(
char* pBuffer,
FONT* pFont,
char* pChar
)
{
unsigned char qh,wh;
int iOffset;
//qu-wei code of chinese
qh=*(pChar)-0xa0;
wh=*(pChar+1)-0xa0;
if(qh>=0x10) {
iOffset=pFont->iOffset + pFont->FontLibHeader.iSize
+ pFont->FontLibHeader.iChnOffset;
iOffset=iOffset
+ ((94*(qh-1)+(wh-1))-0x0582)* pFont->FontLibHeader.iChnBytes;
}
else {
iOffset=pFont->iOffset + pFont->FontLibHeader.iSize
+ pFont->FontLibHeader.iChnSymOffset;
iOffset=iOffset
+ (94*(qh-1)+(wh-1)) * pFont->FontLibHeader.iChnBytes;
}
shm_read(pBuffer, iOffset, pFont->FontLibHeader.iChnBytes);
}
int main()
{
int choice = 1;
shmget(2009, SHMSIZE, 0666 | IPC_CREAT);
while (1) {
printf("1 Parent writes\n"
"2 Parent reads\n"
"3 Child writes\n"
"4 Child reads\n"
"5 quit\n");
scanf("%d", &choice);
switch(choice) {
case 1:
shm_write("Parent");
break;
case 2:
shm_read("Parent");
break;
case 3:
if (fork() == 0) {
shm_write("Child");
}
else {
wait(NULL);
break;
}
case 4:
if (fork() == 0) {
shm_read("Child");
}
else {
wait(NULL);
}
break;
default:
exit(0);
}
}
shmctl(shmid, IPC_RMID, NULL);
return 0;
}
static void
GetAscFontData(
char* pBuffer,
FONT* pFont,
char* pChar
)
{
int iOffset;
iOffset=pFont->iOffset + pFont->FontLibHeader.iSize
+ pFont->FontLibHeader.iAscOffset;
iOffset=iOffset+(*pChar) * pFont->FontLibHeader.iAscBytes;
shm_read(pBuffer, iOffset, pFont->FontLibHeader.iAscBytes);
}
void ZmqEnd::backThreadFunc() {
LOG(INFO)<<"backThreadFunc start";
mBackSock.connect(mInProcUri);
while(!mThreadInter) {
/* wait*/
int wRet = mBinSem.timeWait(3);
if (wRet == -1) {
if (errno != ETIMEDOUT)
LOG(ERROR)<<strerror(errno);
continue;
}
/*get msg from queue*/
repInfo * ptRepO = nullptr;
int ret = shm_read(&mCommCtlInfo, (void *)&ptRepO, sizeof(void *), STREAM_IN_DIRECT);
if (SHM_OPT_FAIL == ret)
{
LOG(ERROR)<<"shm_read fail";
continue;
}
/*send msg with zmq*/
int cliIdSize = strlen(ptRepO->mPtrCliId);
int payloadSize = strlen(ptRepO->mPtrPayLoad);
zmq::message_t outCliIdMsg(cliIdSize);
memcpy ((void *)outCliIdMsg.data(), ptRepO->mPtrCliId, cliIdSize);
mBackSock.send(outCliIdMsg, ZMQ_SNDMORE);
zmq::message_t outPayloadMsg(payloadSize);
memcpy((void *)outPayloadMsg.data(), ptRepO->mPtrPayLoad, payloadSize);
mBackSock.send(outPayloadMsg, 0);
releaseRepInfoObj(&ptRepO);
ptRepO = nullptr;
}
LOG(INFO)<<"backThreadFunc end";
}
int main(void)
{
const char *path1="/usr/include/stdio.h";
const int ch1='A';
const char *path2="/usr/include/stdio.h";
const int ch2='B';
const char *path3="/usr/include/stdio.h";
const int ch3='C';
char *text3="\nThis is the test text #3 and integer: ";
char text1[256],text2[256];
ShmLink link1,link2,link3;
int size1,size2,err,i=0,res1=0,res2=0;
size1=strlen(text3)+1;
size2=sizeof(int);
if( (err=shm_connect(&link3,path3,ch3,size1+size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for shm_link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link3));
return -1;
}
sleep(1);
if( (err=shm_connect(&link2,path2,ch2,size1+size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for shm_link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link2));
return -1;
}
if( (err=shm_connect(&link1,path1,ch1,size1+size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for shm_link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link1));
return -1;
}
for(i=0;i<10;i++)
{
if( (err=shm_write(&link3,text3,0,size1))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link3));
return -2;
}
if( (err=shm_write(&link3,&i,size1,size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link3));
return -2;
}
if( (err=shm_read(&link1,text1,0,size1))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link1));
return -2;
}
if( (err=shm_read(&link1,&res1,size1,size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link1));
return -2;
}
if( (err=shm_read(&link2,text2,0,size1))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link2));
return -2;
}
if( (err=shm_read(&link2,&res2,size1,size2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link2));
return -2;
}
sleep(2);
}
if( (err=shm_disconnect(&link1))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link1));
return -4;
}
if( (err=shm_disconnect(&link2))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link2));
return -4;
}
if( (err=shm_disconnect(&link3))<0 )
{
fprintf(stderr,"[%s:%d] Error #%d for link:\n%s",
__FILE__,__LINE__,err,shm_strerror(&link3));
return -4;
}
return 0;
}
int shcon_recv_shm_msg (shcon_t* _shcon, msg_t** _msg, int _init)
{
int tmp = 0;
int ret = 0;
int _offset = 0;
if (_shcon == NULL || _shcon->shm == NULL)
{
ERR_PRINT (_EPTRNULL);
ret = -1;
return ret;
}
if (!(_shcon->locked))
{
// todo- new error
ERR_PRINT (_EBADVAL);
ret = -1;
return ret;
}
(*_msg) = msg_t_new ();
if (_msg == NULL || (*_msg) == NULL)
{
ERR_FROM ();
ret = -1;
return ret;
}
if (!_init)
{
tmp = msg_to_raw_len (&shcon_msg_init);
if (tmp < 0)
{
ERR_FROM ();
msg_t_del (_msg);
ret = -1;
return ret;
}
_offset += tmp;
}
tmp = shm_read
(_shcon->shm, &((*_msg)->type), sizeof (enum _MSG_TYPE), _offset);
if (tmp < 0)
{
ERR_FROM ();
msg_t_del (_msg);
ret = -1;
return ret;
}
_offset += sizeof ((*_msg)->type);
tmp = shm_read
(_shcon->shm, &((*_msg)->hdr), sizeof (msg_hdr_t), _offset);
if (tmp < 0)
{
ERR_FROM ();
msg_t_del (_msg);
ret = -1;
return ret;
}
if ((*_msg)->hdr.len != 0)
{
(*_msg)->data = malloc ((*_msg)->hdr.len);
if ((*_msg)->data == NULL)
{
ERR_PRINT (_EALLOC);
ret = -1;
return ret;
}
_offset += sizeof ((*_msg)->hdr);
tmp = shm_read
(_shcon->shm, (*_msg)->data, (*_msg)->hdr.len, _offset);
if (tmp < 0)
{
ERR_FROM ();
msg_t_del (_msg);
ret = -1;
return ret;
}
}
tmp = _shcon_check_prev_time (_shcon, (*_msg));
ret = tmp;
if (tmp < 0)
{
ERR_FROM ();
return ret;
}
if (tmp)
{
tmp = _shcon_set_prev_time (_shcon, (*_msg));
if (tmp < 0)
{
ERR_FROM ();
ret = tmp;
}
}
return ret;
}
