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MySQL 5.1: mysql/src/5.1-dbg/libmysql_r/pack.c File Reference

mysql/src/5.1-dbg/libmysql_r/pack.c File Reference

#include <my_global.h>
#include <mysql_com.h>
#include <mysql.h>

Include dependency graph for pack.c:


Functions
ulong STDCALL	net_field_length (uchar **packet)
my_ulonglong	net_field_length_ll (uchar **packet)
char *	net_store_length (char *pkg, ulonglong length)

Function Documentation

ulong STDCALL net_field_length ( uchar ** packet )

Definition at line 22 of file pack.c.

References NULL_LENGTH, pos(), reg1, uint2korr, uint3korr, and uint4korr.

00023 {
00024   reg1 uchar *pos= (uchar *)*packet;
00025   if (*pos < 251)
00026   {
00027     (*packet)++;
00028     return (ulong) *pos;
00029   }
00030   if (*pos == 251)
00031   {
00032     (*packet)++;
00033     return NULL_LENGTH;
00034   }
00035   if (*pos == 252)
00036   {
00037     (*packet)+=3;
00038     return (ulong) uint2korr(pos+1);
00039   }
00040   if (*pos == 253)
00041   {
00042     (*packet)+=4;
00043     return (ulong) uint3korr(pos+1);
00044   }
00045   (*packet)+=9;                                 /* Must be 254 when here */
00046   return (ulong) uint4korr(pos+1);
00047 }

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my_ulonglong net_field_length_ll ( uchar ** packet )

Definition at line 50 of file pack.c.

References NULL_LENGTH, pos(), reg1, uint2korr, uint3korr, uint4korr, and uint8korr.

00051 {
00052   reg1 uchar *pos= *packet;
00053   if (*pos < 251)
00054   {
00055     (*packet)++;
00056     return (my_ulonglong) *pos;
00057   }
00058   if (*pos == 251)
00059   {
00060     (*packet)++;
00061     return (my_ulonglong) NULL_LENGTH;
00062   }
00063   if (*pos == 252)
00064   {
00065     (*packet)+=3;
00066     return (my_ulonglong) uint2korr(pos+1);
00067   }
00068   if (*pos == 253)
00069   {
00070     (*packet)+=4;
00071     return (my_ulonglong) uint3korr(pos+1);
00072   }
00073   (*packet)+=9;                                 /* Must be 254 when here */
00074 #ifdef NO_CLIENT_LONGLONG
00075   return (my_ulonglong) uint4korr(pos+1);
00076 #else
00077   return (my_ulonglong) uint8korr(pos+1);
00078 #endif
00079 }

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char* net_store_length	(	char *	pkg,
		ulonglong	length
	)

Definition at line 99 of file pack.c.

References int2store, int3store, int8store, and LL.

00100 {
00101   uchar *packet=(uchar*) pkg;
00102   if (length < (ulonglong) LL(251))
00103   {
00104     *packet=(uchar) length;
00105     return (char*) packet+1;
00106   }
00107   /* 251 is reserved for NULL */
00108   if (length < (ulonglong) LL(65536))
00109   {
00110     *packet++=252;
00111     int2store(packet,(uint) length);
00112     return (char*) packet+2;
00113   }
00114   if (length < (ulonglong) LL(16777216))
00115   {
00116     *packet++=253;
00117     int3store(packet,(ulong) length);
00118     return (char*) packet+3;
00119   }
00120   *packet++=254;
00121   int8store(packet,length);
00122   return (char*) packet+8;
00123 }

Generated on Sat Sep 9 02:06:48 2006 for MySQL 5.1 by

1.4.7

The world's most popular open source database

mysql/src/5.1-dbg/libmysql_r/pack.c File Reference

Functions

Function Documentation