?? ss_msg.c
字號:
while (numBytes--)
*dBuf->b_wptr++ = *cptr++;
tmp = tmp->b_cont;
}
minfo2->len = minfo1->len;
/* set the endptr and b_cont of dstBuf to point to dBuf */
minfo2->endptr = dBuf;
(*dstBuf)->b_cont = dBuf;
RETVALUE(ROK);
}
/*
*
* Fun: SAddMsgRef
*
* Desc: This function is used to copy a message into
* a new region and or pool of memory.
*
* Ret: ROK - ok
* RFAILED - failed, general (optional)
* ROUTRES - failed, out of resources (optional)
*
* Notes: None
*
* File: ss_msg.c
*
*/
#ifdef ANSI
PUBLIC S16 SAddMsgRef
(
Buffer *srcBuf,
Region dstRegion,
Pool dstPool,
Buffer **dstBuf
)
#else
PUBLIC S16 SAddMsgRef(srcBuf, dstRegion, dstPool, dstBuf)
Buffer *srcBuf;
Region dstRegion;
Pool dstPool;
Buffer **dstBuf;
#endif
{
SsMsgInfo *minfo1;
SsMsgInfo *minfo2;
Buffer *tmp;
Buffer *dBuf;
Buffer *curblk;
Buffer *newblk;
Buffer *prevblk;
Data *cptr;
MsgLen numBytes;
TRC1(SAddMsgRef)
#if (ERRCLASS & ERRCLS_INT_PAR)
if (!srcBuf)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS282, ERRZERO, "SAddMsgRef : Null Buffer");
RETVALUE(RFAILED);
}
if (srcBuf->b_datap->db_type != SS_M_PROTO)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS283, ERRZERO, "SAddMsgRef : Incorrect\
buffer type");
RETVALUE(RFAILED);
}
#endif
/* allocate a message buffer */
if (SGetMsg(dstRegion, dstPool, dstBuf) != ROK)
{
#if (ERRCLASS & ERRCLS_DEBUG)
SSLOGERROR(ERRCLS_DEBUG, ESS284, ERRZERO, "SAddMsgRef : SGetMsg failed");
#endif
RETVALUE(RFAILED);
}
/* get the SsMsgInfo from srcBuf */
minfo1 = (SsMsgInfo*) srcBuf->b_rptr;
/* get the SsMsgInfo from srcBuf */
minfo2 = (SsMsgInfo*) (*dstBuf)->b_rptr;
/* get the first SS_M_DATA blk of srcBuf */
tmp = srcBuf->b_cont;
/* if srcBuf and dstBuf belong to the same region, increment the reference
* count
*/
if (dstRegion == minfo1->region)
{
newblk = NULLP;
curblk = NULLP;
prevblk = NULLP;
while (tmp)
{
if ((curblk = ssDupB(tmp)) == NULLP)
{
while (newblk)
{
curblk = newblk->b_cont;
(Void) SPutDBuf(minfo1->region, minfo1->pool, newblk);
newblk = curblk;
}
(Void) SPutMsg(*dstBuf);
RETVALUE(ROUTRES);
}
if (!prevblk)
newblk = curblk;
else
prevblk->b_cont = curblk;
prevblk = curblk;
tmp = tmp->b_cont;
}
if (curblk)
curblk->b_cont = NULLP;
minfo2->len = minfo1->len;
minfo2->endptr = curblk;
(*dstBuf)->b_cont = newblk;
RETVALUE(ROK);
}
/* allocate a data buffer */
if (ssGetDBufOfSize(dstRegion, minfo1->len, &dBuf) != ROK)
{
SSLOGERROR(ERRCLS_DEBUG, ESS285, ERRZERO, "SAddMsgRef : ssGetDBufOfSize\
failed");
RETVALUE(ROUTRES);
}
dBuf->b_datap->db_type = SS_M_DATA;
while (tmp)
{
numBytes = tmp->b_wptr - tmp->b_rptr;
cptr = tmp->b_rptr;
while (numBytes--)
*dBuf->b_wptr++ = *cptr++;
tmp = tmp->b_cont;
}
minfo2->len = minfo1->len;
/* set the endptr and b_cont of dstBuf to point to dBuf */
minfo2->endptr = dBuf;
(*dstBuf)->b_cont = dBuf;
RETVALUE(ROK);
}
/*
*
* Fun: SGetDBuf
*
* Desc: This function allocates a buffer from the dynamic
* memory pool indicated by the caller.
*
* Ret: ROK - ok
* RFAILED - failed, general (optional)
* ROUTRES - failed, out of resources (optional)
*
* Notes: The dynamic memory pools are used to create and
* manipulate messages.
*
* SGetDBuf is never called by a protocol layer.
*
* SGetDBuf assumes that interrupts are already disabled.
*
* File: ss_msg.c
*
*/
#ifdef ANSI
PUBLIC S16 SGetDBuf
(
Region region, /* region id */
Pool pool, /* pool id */
Buffer **bufPtr
)
#else
PUBLIC S16 SGetDBuf(region, pool, bufPtr)
Region region; /* region id */
Pool pool; /* pool id */
Buffer **bufPtr; /* pointer to buffer */
#endif
{
Size size;
Size mdsize;
Data *data;
SsDblk *dptr;
SsRegionEntry *regp;
TRC1(SGetDBuf)
#if (ERRCLASS & ERRCLS_INT_PAR)
/* check buffer pointer */
if (!bufPtr)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS286, ERRZERO, "SGetDBuf : Null Buffer");
RETVALUE(RFAILED);
}
if (region >= SS_MAX_REGS)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS287, ERRZERO, "SGetDBuf : Invalid region\
id");
RETVALUE(RFAILED);
}
if (pool >= SS_MAX_POOLS_PER_REG)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS288, ERRZERO, "SGetDBuf : Invalid pool id");
RETVALUE(RFAILED);
}
#endif
regp = &osCp.regionTbl[region];
#if (ERRCLASS & ERRCLS_DEBUG)
if (regp->poolTbl[pool].type != SS_POOL_DYNAMIC)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS289, ERRZERO,
"SGetDBuf : Invalid pool type");
RETVALUE(RFAILED);
}
#endif
/* get the size from region/pool */
size = regp->poolTbl[pool].u.dpool.size;
mdsize = MDBSIZE;
/* out board memory */
if (regp->flags & SS_OUTBOARD_FLAG)
{
/* allocate memory for data buffer */
if (SAlloc(region, &size, 0, &data) != ROK)
{
RETVALUE(ROUTRES);
}
if (SAlloc(SS_DFLT_REGION, &mdsize, 0, (Data **) bufPtr) != ROK)
{
SFree(region, (Data *) data, size);
RETVALUE(ROUTRES);
}
} else
{
mdsize += size;
if (SAlloc(region, &mdsize, 0, (Data **) bufPtr) != ROK)
{
RETVALUE(ROUTRES);
}
data = (Data *) (*bufPtr) + MDBSIZE;
size = mdsize - MDBSIZE;
}
dptr = (SsDblk*) (((Data *) (*bufPtr)) + MBSIZE);
INITB((*bufPtr), dptr, data, size, NULLP)
RETVALUE(ROK);
}
/*
*
* Fun: SGetDBufBySize
*
* Desc: This function allocates a buffer from the dynamic
* memory pool indicated by the caller.
*
* Ret: ROK - ok
* RFAILED - failed, general (optional)
* ROUTRES - failed, out of resources (optional)
*
* Notes: The dynamic memory pools are used to create and
* manipulate messages.
*
* SGetDBufBySize is never called by a protocol layer.
*
* SGetDBufBySize assumes that interrupts are already disabled.
*
* File: ss_msg.c
*
*/
#ifdef ANSI
PUBLIC S16 SGetDBufBySize
(
Region region, /* region id */
Pool pool, /* pool id */
Size size, /* buffer size */
Buffer **bufPtr
)
#else
PUBLIC S16 SGetDBuf(region, pool, size, bufPtr)
Region region; /* region id */
Pool pool; /* pool id */
Size size; /* buffer size */
Buffer **bufPtr; /* pointer to buffer */
#endif
{
Size mdsize;
Data *data;
SsDblk *dptr;
SsRegionEntry *regp;
TRC1(SGetDBuf)
#if (ERRCLASS & ERRCLS_INT_PAR)
/* check buffer pointer */
if (!bufPtr)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS286, ERRZERO, "SGetDBuf : Null Buffer");
RETVALUE(RFAILED);
}
if (region >= SS_MAX_REGS)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS287, ERRZERO, "SGetDBuf : Invalid region\
id");
RETVALUE(RFAILED);
}
if (pool >= SS_MAX_POOLS_PER_REG)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS288, ERRZERO, "SGetDBuf : Invalid pool id");
RETVALUE(RFAILED);
}
if (0 == size )
{
SSLOGERROR(ERRCLS_INT_PAR, ESS288, ERRZERO, "SGetDBuf : Invalid size");
RETVALUE(RFAILED);
}
#endif
regp = &osCp.regionTbl[region];
#if (ERRCLASS & ERRCLS_DEBUG)
if (regp->poolTbl[pool].type != SS_POOL_DYNAMIC)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS289, ERRZERO,
"SGetDBuf : Invalid pool type");
RETVALUE(RFAILED);
}
#endif
mdsize = MDBSIZE;
/* out board memory */
if (regp->flags & SS_OUTBOARD_FLAG)
{
/* allocate memory for data buffer */
if (SAlloc(region, &size, 0, &data) != ROK)
{
RETVALUE(ROUTRES);
}
if (SAlloc(SS_DFLT_REGION, &mdsize, 0, (Data **) bufPtr) != ROK)
{
SFree(region, (Data *) data, size);
RETVALUE(ROUTRES);
}
} else
{
mdsize += size;
if (SAlloc(region, &mdsize, 0, (Data **) bufPtr) != ROK)
{
RETVALUE(ROUTRES);
}
data = (Data *) (*bufPtr) + MDBSIZE;
size = mdsize - MDBSIZE;
}
dptr = (SsDblk*) (((Data *) (*bufPtr)) + MBSIZE);
INITB((*bufPtr), dptr, data, size, NULLP)
RETVALUE(ROK);
}
/*
*
* Fun: SPutDBuf
*
* Desc: This function deallocates a buffer back to the
* dynamic memory pool indicated by the caller.
*
* Ret: ROK - ok
* RFAILED - failed, general (optional)
*
* Notes: The dynamic memory pools are used to create and
* manipulate messages.
*
* SPutDBuf is never called by a protocol layer.
*
* SPutDBuf assumes that interrupts are already disabled.
*
* File: ss_msg.c
*
*/
#ifdef ANSI
PUBLIC S16 SPutDBuf
(
Region region,
Pool pool,
Buffer *buf
)
#else
PUBLIC S16 SPutDBuf(region, pool, buf)
Region region;
Pool pool;
Buffer *buf;
#endif
{
Buffer *tmp;
SsRegionEntry *regp;
TRC2(SPutDBuf);
#if (ERRCLASS & ERRCLS_INT_PAR)
if (region >= SS_MAX_REGS)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS290, ERRZERO, "SPutDBuf:Invalid region");
RETVALUE(RFAILED);
}
if (pool >= SS_MAX_POOLS_PER_REG)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS291, ERRZERO, "SPutDBuf:Invalid pool");
RETVALUE(RFAILED);
}
if (buf == NULLP)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS292, ERRZERO, "SPutDBuf:Null pointer");
RETVALUE(RFAILED);
}
if (buf->b_datap->db_type != SS_M_DATA)
{
SSLOGERROR(ERRCLS_INT_PAR, ESS293, ERRZERO, "SPutDBuf:Incorrect\
buffer type");
RETVALUE(RFAILED);
}
#endif
regp = &osCp.regionTbl[region];
#if (ERRCLASS & ERRCLS_DEBUG)
if (regp->poolTbl[pool].type != SS_POOL_DYNAMIC)
{
SSLOGERROR(ERRCLS_DEBUG, ESS294, ERRZERO, "SPutDBuf:Invalid pool type");
RETVALUE(RFAILED);
}
#endif
/* if reference count falls to zero */
ssLockTsk();
if (!--buf->b_datap->db_ref)
{
ssUnlockTsk();
/* if the buffer, buf is a message blk obtained during dupb */
if (buf != (SsMblk *) (((Data*) (buf->b_datap)) - MBSIZE))
{
tmp = (SsMblk *) (((Data*) (buf->b_datap)) - MBSIZE);
SFree(SS_DFLT_REGION, (Data *) buf, MDBSIZE);
buf = tmp;
}
/* if not outboard memory, release MDBSIZE + data buffer */
if (!(regp->flags & SS_OUTBOARD_FLAG))
SFree(region, (Data *) buf, MDBSIZE +
buf->b_datap->db_lim - buf->b_datap->db_base);
else
{
SFree(region, (Data *) buf->b_datap->db_base,
buf->b_datap->db_lim - buf->b_datap->db_base);
SFree(SS_DFLT_REGION, (Data *) buf, MDBSIZE);
}
} else
{
ssUnlockTsk();
/* if the buffer, buf is a message blk obtained during dupb, */
/* release the message blk */
if (buf != (SsMblk *) (((Data*) (buf->b_datap)) - MBSIZE))
SFree(SS_DFLT_REGION, (Data *) buf, MDBSIZE);
}
RETVALUE(ROK);
}
/*
*
* Fun: SCatMsg
*
* Desc: This function will concatenate the two specified messages
* into one message.
*
* Ret: ROK - ok
* RFAILED - failed, general (optional)
*
*?? 快捷鍵說明
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