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234a02b2a8
Get rid of VARATT_SIZE and VARATT_DATA, which were simply redundant with VARSIZE and VARDATA, and as a consequence almost no code was using the longer names. Rename the length fields of struct varlena and various derived structures to catch anyplace that was accessing them directly; and clean up various places so caught. In itself this patch doesn't change any behavior at all, but it is necessary infrastructure if we hope to play any games with the representation of varlena headers. Greg Stark and Tom Lane
189 lines
3.3 KiB
C
189 lines
3.3 KiB
C
#include "postgres.h"
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#include "fmgr.h"
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#include "catalog/pg_namespace.h"
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#include "catalog/pg_proc.h"
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#include "utils/syscache.h"
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#include "miscadmin.h"
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#include "ts_cfg.h"
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#include "dict.h"
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#include "wparser.h"
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#include "snmap.h"
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#include "common.h"
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#include "tsvector.h"
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#include "common.h"
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#include "wparser.h"
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#include "ts_cfg.h"
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#include "dict.h"
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Oid TSNSP_FunctionOid = InvalidOid;
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text *
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char2text(char *in)
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{
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return charl2text(in, strlen(in));
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}
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text *
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charl2text(char *in, int len)
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{
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text *out = (text *) palloc(len + VARHDRSZ);
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memcpy(VARDATA(out), in, len);
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SET_VARSIZE(out, len + VARHDRSZ);
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return out;
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}
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char
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*
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text2char(text *in)
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{
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char *out = palloc(VARSIZE(in));
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memcpy(out, VARDATA(in), VARSIZE(in) - VARHDRSZ);
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out[VARSIZE(in) - VARHDRSZ] = '\0';
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return out;
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}
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char
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*
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pnstrdup(char *in, int len)
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{
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char *out = palloc(len + 1);
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memcpy(out, in, len);
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out[len] = '\0';
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return out;
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}
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text
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*
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ptextdup(text *in)
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{
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text *out = (text *) palloc(VARSIZE(in));
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memcpy(out, in, VARSIZE(in));
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return out;
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}
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text
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*
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mtextdup(text *in)
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{
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text *out = (text *) malloc(VARSIZE(in));
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if (!out)
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ts_error(ERROR, "No memory");
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memcpy(out, in, VARSIZE(in));
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return out;
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}
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void
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ts_error(int state, const char *format,...)
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{
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va_list args;
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int tlen = 128,
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len = 0;
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char *buf;
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reset_cfg();
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reset_dict();
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reset_prs();
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va_start(args, format);
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buf = palloc(tlen);
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len = vsnprintf(buf, tlen - 1, format, args);
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if (len >= tlen)
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{
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tlen = len + 1;
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buf = repalloc(buf, tlen);
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vsnprintf(buf, tlen - 1, format, args);
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}
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va_end(args);
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/* ?? internal error ?? */
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elog(state, "%s", buf);
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pfree(buf);
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}
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int
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text_cmp(text *a, text *b)
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{
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if (VARSIZE(a) == VARSIZE(b))
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return strncmp(VARDATA(a), VARDATA(b), VARSIZE(a) - VARHDRSZ);
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return (int) VARSIZE(a) - (int) VARSIZE(b);
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}
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char *
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get_namespace(Oid funcoid)
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{
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HeapTuple tuple;
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Form_pg_proc proc;
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Form_pg_namespace nsp;
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Oid nspoid;
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char *txt;
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tuple = SearchSysCache(PROCOID, ObjectIdGetDatum(funcoid), 0, 0, 0);
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if (!HeapTupleIsValid(tuple))
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elog(ERROR, "cache lookup failed for proc oid %u", funcoid);
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proc = (Form_pg_proc) GETSTRUCT(tuple);
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nspoid = proc->pronamespace;
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ReleaseSysCache(tuple);
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tuple = SearchSysCache(NAMESPACEOID, ObjectIdGetDatum(nspoid), 0, 0, 0);
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if (!HeapTupleIsValid(tuple))
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elog(ERROR, "cache lookup failed for namespace oid %u", nspoid);
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nsp = (Form_pg_namespace) GETSTRUCT(tuple);
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txt = pstrdup(NameStr((nsp->nspname)));
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ReleaseSysCache(tuple);
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return txt;
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}
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Oid
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get_oidnamespace(Oid funcoid)
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{
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HeapTuple tuple;
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Form_pg_proc proc;
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Oid nspoid;
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tuple = SearchSysCache(PROCOID, ObjectIdGetDatum(funcoid), 0, 0, 0);
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if (!HeapTupleIsValid(tuple))
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elog(ERROR, "cache lookup failed for proc oid %u", funcoid);
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proc = (Form_pg_proc) GETSTRUCT(tuple);
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nspoid = proc->pronamespace;
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ReleaseSysCache(tuple);
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return nspoid;
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}
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/* if path is relative, take it as relative to share dir */
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char *
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to_absfilename(char *filename)
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{
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if (!is_absolute_path(filename))
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{
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char sharepath[MAXPGPATH];
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char *absfn;
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#ifdef WIN32
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char delim = '\\';
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#else
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char delim = '/';
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#endif
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get_share_path(my_exec_path, sharepath);
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absfn = palloc(strlen(sharepath) + strlen(filename) + 2);
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sprintf(absfn, "%s%c%s", sharepath, delim, filename);
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filename = absfn;
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}
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return filename;
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}
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