bool gtcmtr_initreg(void)
{
cm_region_head *region;
cm_region_list *list_entry;
unsigned char *reply;
unsigned short temp_short;
assert(*curr_entry->clb_ptr->mbf == CMMS_S_INITREG);
region = gtcmd_ini_reg(curr_entry);
gtcm_add_region(curr_entry,region);
if (region->reg->max_rec_size + CM_BUFFER_OVERHEAD > curr_entry->clb_ptr->mbl)
{
free(curr_entry->clb_ptr->mbf);
curr_entry->clb_ptr->mbf = (unsigned char *)malloc(region->reg->max_rec_size + CM_BUFFER_OVERHEAD);
curr_entry->clb_ptr->mbl = region->reg->max_rec_size + CM_BUFFER_OVERHEAD;
}
reply = curr_entry->clb_ptr->mbf;
*reply++ = CMMS_T_REGNUM;
*reply++ = curr_entry->current_region->regnum;
*reply++ = region->reg->null_subs;
temp_short = (unsigned short)region->reg->max_rec_size;
assert((int4)temp_short == region->reg->max_rec_size); /* ushort <- int4 assignment lossy? */
PUT_USHORT(reply, temp_short);
reply += sizeof(unsigned short);
temp_short = (unsigned short)region->reg->max_key_size;
assert((int4)temp_short == region->reg->max_key_size); /* ushort <- int4 assignment lossy? */
PUT_USHORT(reply, temp_short);
reply += sizeof(unsigned short);
curr_entry->clb_ptr->cbl = reply - curr_entry->clb_ptr->mbf;
return TRUE;
}
long SDMCode::Marshal(char* buf)
{
int cur;
cur = HEADER_SIZE;
PUT_USHORT(&buf[cur], seq_num);
cur += sizeof(seq_num);
PUT_USHORT(&buf[cur], num_segments);
cur += sizeof(num_segments);
//
// Copy the filename
size_t uiCurLength = strlen(filename);
strcpy(buf + cur, filename);
cur += (int)uiCurLength + 1;
//
// Copy the code section
memcpy (&buf[cur], &code, code_length);
cur += code_length;
c_sum = checksum(code, code_length);
PUT_INT (&buf[cur], c_sum);
cur += sizeof (c_sum);
msg_length = cur - HEADER_SIZE;
MarshalHeader(buf);
return cur;
}
bool gtcmtr_data(void)
{
cm_region_list *reg_ref;
unsigned char *ptr,regnum;
unsigned short top,len;
mval v;
int x;
ptr = curr_entry->clb_ptr->mbf;
assert(*ptr == CMMS_Q_DATA);
ptr++;
GET_USHORT(len, ptr);
ptr += sizeof(unsigned short);
regnum = *ptr++;
reg_ref = gtcm_find_region(curr_entry, regnum);
len--; /* subtract size of regnum */
CM_GET_GVCURRKEY(ptr, len);
gtcm_bind_name(reg_ref->reghead, TRUE);
x = 0;
if (gv_target->root)
x = gvcst_data();
v = *fndata_table[x / 10][x & 1];
ptr = curr_entry->clb_ptr->mbf;
*ptr++ = CMMS_R_DATA;
len = sizeof(unsigned char);
PUT_USHORT(ptr, len);
ptr += sizeof(unsigned short);
*ptr++ = MV_FORCE_INTD(&v);
curr_entry->clb_ptr->cbl = ptr - curr_entry->clb_ptr->mbf;
return TRUE;
}
/*
Marshal the header without reassigning a new timestamp.
*/
long SDMmessage::MarshalHeaderOldTimeStamp(char* buf)
{
buf[0] = MsgName;
PUT_LONG(&buf[1],sec);
PUT_LONG(&buf[5],subsec);
PUT_USHORT(&buf[9],msg_length);
return HEADER_SIZE;
}
long SDMmessage::MarshalHeader(char* buf)
{
#ifdef __VXWORKS__
struct timespec time;
clock_gettime(CLOCK_REALTIME, &time);
sec = time.tv_sec;
subsec = time.tv_nsec/1000;
#else
struct timeval time;
gettimeofday(&time,NULL);
sec = time.tv_sec;
subsec = time.tv_usec;
#endif
buf[0] = MsgName;
PUT_LONG(&buf[1],sec);
PUT_LONG(&buf[5],subsec);
PUT_USHORT(&buf[9],msg_length);
return HEADER_SIZE;
}
/*
* -----------------------------------------------------
* Convert a string subscript to MUMPS string
* Save result in a buffer pointed by targ.
*
* Entry:
* sub - input string in subscript format
* targ - output string buffer
* xlat_flg- translate flag.
* If true convert string to MUMPS format
* Return:
* (pointer to the last char.
* converted in the targ string) + 1.
* -----------------------------------------------------
*/
unsigned char *gvsub2str(unsigned char *sub, unsigned char *targ, bool xlat_flg)
{
unsigned char buf1[MAX_KEY_SZ + 1], ch, *ptr, trail_ch;
unsigned short *tbl_ptr;
int expon, in_length, length, tmp;
mstr mstr_ch, mstr_targ;
ch = *sub++;
if (STR_SUB_PREFIX == ch || (SUBSCRIPT_STDCOL_NULL == ch && KEY_DELIMITER == *sub))
{ /* If this is a string */
if (xlat_flg)
return gvstrsub(sub, targ);
else
{
in_length = 0;
ptr = targ;
while ((ch = *sub++))
{ /* Copy string to targ, xlating each char */
in_length++;
if (STR_SUB_ESCAPE == ch)
/* if this is an escape, demote next char */
ch = (*sub++ - 1);
*targ++ = ch;
}
if (transform && gv_target && gv_target->collseq)
{
mstr_ch.len = in_length;
mstr_ch.addr = (char *)ptr;
mstr_targ.len = sizeof(buf1);
mstr_targ.addr = (char *)buf1;
do_xform(gv_target->collseq, XBACK, &mstr_ch, &mstr_targ, &length);
memcpy(ptr, mstr_targ.addr, length); /* mstr_targ.addr is used just in case it is
reallocated by the XBACK routine */
targ = ptr + length;
}
}
} else
{ /* Number */
if (SUBSCRIPT_ZERO == ch)
*targ++ = '0';
else
{
tbl_ptr = (unsigned short *)&dpos[0] - 1;
trail_ch = KEY_DELIMITER;
if ((signed char)ch >= 0)
{ /* Bit 7 of the exponent is set for positive numbers; must be negative */
trail_ch = NEG_MNTSSA_END;
tbl_ptr = (unsigned short *)dneg;
ch = ~ch;
*targ++ = '-';
}
ch -= (SUBSCRIPT_BIAS - 1); /* Unbias the exponent */
expon = ch;
if ((signed char)ch <= 0)
{ /* number is a fraction */
ch = -(signed char)ch;
/* Save decimal point */
*targ++ = '.';
/* generate leading 0's */
do *targ++ = '0';
while ((signed char)ch-- > 0)
;
/* make expon. really large to avoid
* generating extra dots */
expon = LARGE_EXP;
}
while ((ch = *sub++) && ch != trail_ch)
{ /* Convert digits loop */
/* adjust dcm. point */
if ((expon -= 2) <= 0)
{
if (0 != expon)
{
*targ++ = '.';
expon = LARGE_EXP;
PUT_USHORT(targ, tbl_ptr[ch]);
targ += sizeof(short);
} else
{ /* Insert dot between digits */
PUT_USHORT(targ, tbl_ptr[ch]);
targ += sizeof(short);
*targ = *(targ - 1);
*(targ - 1) = '.';
targ++;
expon = LARGE_EXP;
}
} else
{
PUT_USHORT(targ, tbl_ptr[ch]);
targ += sizeof(short);
}
}
if (expon > (LARGE_EXP - 100))
{
if ('0' == *(targ - 1))
targ--;
if ('.' == *(targ - 1))
targ--;
} else
while (--expon > 0)
*targ++ = '0';
}
}
return (targ);
}
bool gtcmtr_increment(void)
{
cm_region_list *reg_ref;
mval incr_delta, post_incr;
unsigned char buff[MAX_ZWR_KEY_SZ], *end;
unsigned char *ptr, regnum;
short n;
unsigned short top, len, temp_short;
static readonly gds_file_id file;
error_def(ERR_KEY2BIG);
error_def(ERR_GVIS);
error_def(ERR_DBPRIVERR);
ptr = curr_entry->clb_ptr->mbf;
assert(*ptr == CMMS_Q_INCREMENT);
ptr++;
GET_USHORT(len, ptr);
ptr += SIZEOF(unsigned short);
regnum = *ptr++;
reg_ref = gtcm_find_region(curr_entry,regnum);
len--; /* subtract size of regnum */
CM_GET_GVCURRKEY(ptr, len);
gtcm_bind_name(reg_ref->reghead, TRUE);
if (gv_cur_region->read_only)
rts_error(VARLSTCNT(4) ERR_DBPRIVERR, 2, DB_LEN_STR(gv_cur_region));
if (JNL_ALLOWED(cs_addrs))
{ /* we need to copy client's specific prc_vec into the global variable in order that the gvcst* routines
* do the right job. actually we need to do this only if JNL_ENABLED(cs_addrs), but since it is not
* easy to re-execute the following two assignments in case gvcst_incr's call to t_end encounters a
* cdb_sc_jnlstatemod retry code, we choose the easier approach of executing the following segment
* if JNL_ALLOWED(cs_addrs) is TRUE instead of checking for JNL_ENABLED(cs_addrs) to be TRUE.
* this approach has the overhead that we will be doing the following assignments even though JNL_ENABLED
* might not be TRUE but since the following two are just pointer copies, it is not considered a big overhead.
* this approach ensures that the jnl_put_jrt_pini gets the appropriate prc_vec for writing into the
* journal record in case JNL_ENABLED turns out to be TRUE in t_end time.
* note that the value of JNL_ALLOWED(cs_addrs) cannot be changed on the fly without obtaining standalone access
* and hence the correctness of prc_vec (whenever it turns out necessary) is guaranteed.
*/
originator_prc_vec = curr_entry->pvec;
cs_addrs->jnl->pini_addr = reg_ref->pini_addr;
}
GET_USHORT(len, ptr);
ptr += SIZEOF(unsigned short);
incr_delta.mvtype = MV_STR;
incr_delta.str.len = len;
incr_delta.str.addr = (char *)ptr;
if ((n = gv_currkey->end + 1) > gv_cur_region->max_key_size)
{
if ((end = format_targ_key(&buff[0], MAX_ZWR_KEY_SZ, gv_currkey, TRUE)) == 0)
end = &buff[MAX_ZWR_KEY_SZ - 1];
rts_error(VARLSTCNT(11) ERR_KEY2BIG, 4, n, (int4)gv_cur_region->max_key_size,
REG_LEN_STR(gv_cur_region), 0, ERR_GVIS, 2, end - buff, buff);
}
MV_FORCE_NUMD(&incr_delta);
gvcst_incr(&incr_delta, &post_incr);
if (JNL_ALLOWED(cs_addrs))
reg_ref->pini_addr = cs_addrs->jnl->pini_addr; /* In case journal switch occurred */
ptr = curr_entry->clb_ptr->mbf;
if (MV_DEFINED(&post_incr))
{
temp_short = (unsigned short)post_incr.str.len;
assert((int4)temp_short == post_incr.str.len); /* ushort <- int4 assignment lossy? */
if (curr_entry->clb_ptr->mbl < 1 + /* msg header */
SIZEOF(temp_short) + /* size of length of $INCR return value */
temp_short) /* length of $INCR return value */
{ /* resize buffer */
cmi_realloc_mbf(curr_entry->clb_ptr, 1 + SIZEOF(temp_short) + temp_short);
ptr = curr_entry->clb_ptr->mbf;
}
*ptr++ = CMMS_R_INCREMENT;
PUT_USHORT(ptr, temp_short);
ptr += SIZEOF(unsigned short);
memcpy(ptr, post_incr.str.addr, temp_short);
ptr += temp_short;
} else
