Drizzled Public API Documentation

xid.cc
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19 
20 #include <config.h>
21 #include <cstring>
22 
23 #include <drizzled/xid.h>
24 #include <drizzled/charset.h>
25 
26 namespace drizzled {
27 
28 void XID::set(uint64_t xid)
29 {
30  formatID= 1;
31  set(DRIZZLE_XID_PREFIX_LEN, 0, DRIZZLE_XID_PREFIX);
32  memcpy(data + DRIZZLE_XID_PREFIX_LEN, &server_id, sizeof(server_id));
33  my_xid tmp= xid;
34  memcpy(data + DRIZZLE_XID_OFFSET, &tmp, sizeof(tmp));
35  gtrid_length= DRIZZLE_XID_GTRID_LEN;
36 }
37 
38 void XID::set(long g, long b, const char *d)
39 {
40  formatID= 1;
41  gtrid_length= g;
42  bqual_length= b;
43  memcpy(data, d, g+b);
44 }
45 
46 bool XID::is_null() const
47 {
48  return formatID == -1;
49 }
50 
51 void XID::set_null()
52 {
53  formatID= -1;
54 }
55 
56 my_xid XID::quick_get_my_xid()
57 {
58  my_xid tmp;
59  memcpy(&tmp, data + DRIZZLE_XID_OFFSET, sizeof(tmp));
60  return tmp;
61 }
62 
63 my_xid XID::get_my_xid()
64 {
65  return gtrid_length == DRIZZLE_XID_GTRID_LEN && bqual_length == 0 &&
66  !memcmp(data+DRIZZLE_XID_PREFIX_LEN, &server_id, sizeof(server_id)) &&
67  !memcmp(data, DRIZZLE_XID_PREFIX, DRIZZLE_XID_PREFIX_LEN) ?
68  quick_get_my_xid() : 0;
69 }
70 
71 uint32_t XID::length() const
72 {
73  return sizeof(formatID)+sizeof(gtrid_length)+sizeof(bqual_length)+
74  gtrid_length+bqual_length;
75 }
76 
77 } /* namespace drizzled */
TODO: Rename this file - func.h is stupid.
uint64_t my_xid
Definition: common_fwd.h:349