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proc.c
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proc.c
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/* -*- c-basic-offset: 2 -*- */
/*
Copyright(C) 2009-2012 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License version 2.1 as published by the Free Software Foundation.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "proc.h"
#include "ii.h"
#include "db.h"
#include "util.h"
#include "output.h"
#include "pat.h"
#include "geo.h"
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/stat.h>
#ifndef O_NOFOLLOW
#define O_NOFOLLOW 0
#endif
/**** globals for procs ****/
const char *grn_document_root = NULL;
#define VAR GRN_PROC_GET_VAR_BY_OFFSET
/* bulk must be initialized grn_bulk or grn_msg */
static int
grn_bulk_put_from_file(grn_ctx *ctx, grn_obj *bulk, const char *path)
{
/* FIXME: implement more smartly with grn_bulk */
int fd, ret = 0;
struct stat stat;
if ((fd = GRN_OPEN(path, O_RDONLY|O_NOFOLLOW)) == -1) {
switch (errno) {
case EACCES :
ERR(GRN_OPERATION_NOT_PERMITTED, "request is not allowed: <%s>", path);
break;
case ENOENT :
ERR(GRN_NO_SUCH_FILE_OR_DIRECTORY, "no such file: <%s>", path);
break;
#ifndef WIN32
case ELOOP :
ERR(GRN_NO_SUCH_FILE_OR_DIRECTORY,
"symbolic link is not allowed: <%s>", path);
break;
#endif /* WIN32 */
default :
ERR(GRN_UNKNOWN_ERROR, "GRN_OPEN() failed(errno: %d): <%s>", errno, path);
break;
}
return 0;
}
if (fstat(fd, &stat) != -1) {
char *buf, *bp;
off_t rest = stat.st_size;
if ((buf = GRN_MALLOC(rest))) {
ssize_t ss;
for (bp = buf; rest; rest -= ss, bp += ss) {
if ((ss = GRN_READ(fd, bp, rest)) == -1) { goto exit; }
}
GRN_TEXT_PUT(ctx, bulk, buf, stat.st_size);
ret = 1;
}
GRN_FREE(buf);
} else {
ERR(GRN_INVALID_ARGUMENT, "cannot stat file: <%s>", path);
}
exit :
GRN_CLOSE(fd);
return ret;
}
#ifdef stat
# undef stat
#endif /* stat */
/**** query expander ****/
static grn_rc
substitute_term(grn_ctx *ctx, grn_obj *table, grn_obj *column,
const char *term, size_t term_size, grn_obj *expanded_term)
{
grn_id id;
grn_rc rc = GRN_END_OF_DATA;
if ((id = grn_table_get(ctx, table, (const void *)term, (unsigned int)term_size))) {
if ((column->header.type == GRN_COLUMN_VAR_SIZE) &&
((column->header.flags & GRN_OBJ_COLUMN_TYPE_MASK) == GRN_OBJ_COLUMN_VECTOR)) {
unsigned int i, n;
grn_obj values;
GRN_TEXT_INIT(&values, GRN_OBJ_VECTOR);
grn_obj_get_value(ctx, column, id, &values);
n = grn_vector_size(ctx, &values);
if (n > 1) { GRN_TEXT_PUTC(ctx, expanded_term, '('); }
for (i = 0; i < n; i++) {
const char *value;
unsigned int length;
if (i > 0) {
GRN_TEXT_PUTS(ctx, expanded_term, " OR ");
}
if (n > 1) { GRN_TEXT_PUTC(ctx, expanded_term, '('); }
length = grn_vector_get_element(ctx, &values, i, &value, NULL, NULL);
GRN_TEXT_PUT(ctx, expanded_term, value, length);
if (n > 1) { GRN_TEXT_PUTC(ctx, expanded_term, ')'); }
}
if (n > 1) { GRN_TEXT_PUTC(ctx, expanded_term, ')'); }
GRN_OBJ_FIN(ctx, &values);
} else {
grn_obj_get_value(ctx, column, id, expanded_term);
}
rc = GRN_SUCCESS;
}
return rc;
}
static grn_rc
expand_query(grn_ctx *ctx, grn_obj *table, grn_obj *column, grn_expr_flags flags,
const char *str, unsigned int str_len, grn_obj *expanded_query)
{
grn_obj buf;
unsigned int len;
const char *start, *cur = str, *str_end = str + (size_t)str_len;
GRN_TEXT_INIT(&buf, 0);
for (;;) {
while (cur < str_end && grn_isspace(cur, ctx->encoding)) {
if (!(len = grn_charlen(ctx, cur, str_end))) { goto exit; }
GRN_TEXT_PUT(ctx, expanded_query, cur, len);
cur += len;
}
if (str_end <= cur) { break; }
switch (*cur) {
case '\0' :
goto exit;
break;
case GRN_QUERY_AND :
case GRN_QUERY_ADJ_INC :
case GRN_QUERY_ADJ_DEC :
case GRN_QUERY_ADJ_NEG :
case GRN_QUERY_AND_NOT :
case GRN_QUERY_PARENL :
case GRN_QUERY_PARENR :
case GRN_QUERY_PREFIX :
GRN_TEXT_PUTC(ctx, expanded_query, *cur);
cur++;
break;
case GRN_QUERY_QUOTEL :
GRN_BULK_REWIND(&buf);
for (start = cur++; cur < str_end; cur += len) {
if (!(len = grn_charlen(ctx, cur, str_end))) {
goto exit;
} else if (len == 1) {
if (*cur == GRN_QUERY_QUOTER) {
cur++;
break;
} else if (cur + 1 < str_end && *cur == GRN_QUERY_ESCAPE) {
cur++;
len = grn_charlen(ctx, cur, str_end);
}
}
GRN_TEXT_PUT(ctx, &buf, cur, len);
}
if (substitute_term(ctx, table, column, GRN_TEXT_VALUE(&buf), GRN_TEXT_LEN(&buf), expanded_query)) {
GRN_TEXT_PUT(ctx, expanded_query, start, cur - start);
}
break;
case 'O' :
if (cur + 2 <= str_end && cur[1] == 'R' &&
(cur + 2 == str_end || grn_isspace(cur + 2, ctx->encoding))) {
GRN_TEXT_PUT(ctx, expanded_query, cur, 2);
cur += 2;
break;
}
/* fallthru */
default :
for (start = cur; cur < str_end; cur += len) {
if (!(len = grn_charlen(ctx, cur, str_end))) {
goto exit;
} else if (grn_isspace(cur, ctx->encoding)) {
break;
} else if (len == 1) {
if (*cur == GRN_QUERY_PARENL ||
*cur == GRN_QUERY_PARENR ||
*cur == GRN_QUERY_PREFIX) {
break;
} else if (flags & GRN_EXPR_ALLOW_COLUMN && *cur == GRN_QUERY_COLUMN) {
if (cur + 1 < str_end) {
switch (cur[1]) {
case '!' :
case '@' :
case '^' :
case '$' :
cur += 2;
break;
case '=' :
cur += (flags & GRN_EXPR_ALLOW_UPDATE) ? 2 : 1;
break;
case '<' :
case '>' :
cur += (cur + 2 < str_end && cur[2] == '=') ? 3 : 2;
break;
default :
cur += 1;
break;
}
} else {
cur += 1;
}
GRN_TEXT_PUT(ctx, expanded_query, start, cur - start);
start = cur;
break;
}
}
}
if (start < cur) {
if (substitute_term(ctx, table, column, start, cur - start,
expanded_query)) {
GRN_TEXT_PUT(ctx, expanded_query, start, cur - start);
}
}
break;
}
}
exit :
GRN_OBJ_FIN(ctx, &buf);
return GRN_SUCCESS;
}
/**** procs ****/
#define DEFAULT_LIMIT 10
#define DEFAULT_OUTPUT_COLUMNS "_id, _key, *"
#define DEFAULT_DRILLDOWN_LIMIT 10
#define DEFAULT_DRILLDOWN_OUTPUT_COLUMNS "_key, _nsubrecs"
#define DUMP_COLUMNS "_id, _key, _value, *"
static grn_expr_flags
grn_parse_query_flags(grn_ctx *ctx, const char *query_flags,
unsigned int query_flags_len)
{
grn_expr_flags flags = 0;
const char *query_flags_end = query_flags + query_flags_len;
while (query_flags < query_flags_end) {
if (*query_flags == '|' || *query_flags == ' ') {
query_flags += 1;
continue;
}
#define CHECK_EXPR_FLAG(name)\
if (((query_flags_end - query_flags) >= (sizeof(#name) - 1)) &&\
(!memcmp(query_flags, #name, sizeof(#name) - 1))) {\
flags |= GRN_EXPR_ ## name;\
query_flags += sizeof(#name);\
continue;\
}
CHECK_EXPR_FLAG(ALLOW_PRAGMA);
CHECK_EXPR_FLAG(ALLOW_COLUMN);
CHECK_EXPR_FLAG(ALLOW_UPDATE);
CHECK_EXPR_FLAG(ALLOW_LEADING_NOT);
#define GRN_EXPR_NONE 0
CHECK_EXPR_FLAG(NONE);
#undef GNR_EXPR_NONE
ERR(GRN_INVALID_ARGUMENT, "invalid query flag: <%.*s>",
(int)(query_flags_end - query_flags), query_flags);
return 0;
#undef CHECK_EXPR_FLAG
}
return flags;
}
grn_rc
grn_select(grn_ctx *ctx, const char *table, unsigned int table_len,
const char *match_columns, unsigned int match_columns_len,
const char *query, unsigned int query_len,
const char *filter, unsigned int filter_len,
const char *scorer, unsigned int scorer_len,
const char *sortby, unsigned int sortby_len,
const char *output_columns, unsigned int output_columns_len,
int offset, int limit,
const char *drilldown, unsigned int drilldown_len,
const char *drilldown_sortby, unsigned int drilldown_sortby_len,
const char *drilldown_output_columns, unsigned int drilldown_output_columns_len,
int drilldown_offset, int drilldown_limit,
const char *cache, unsigned int cache_len,
const char *match_escalation_threshold, unsigned int match_escalation_threshold_len,
const char *query_expansion, unsigned int query_expansion_len,
const char *query_flags, unsigned int query_flags_len)
{
uint32_t nkeys, nhits;
uint16_t cacheable = 1, taintable = 0;
grn_obj_format format;
grn_table_sort_key *keys;
grn_obj *outbuf = ctx->impl->outbuf;
grn_content_type output_type = ctx->impl->output_type;
grn_obj *table_, *match_columns_ = NULL, *cond, *scorer_, *res = NULL, *sorted;
char cache_key[GRN_TABLE_MAX_KEY_SIZE];
uint32_t cache_key_size = table_len + 1 + match_columns_len + 1 + query_len + 1 +
filter_len + 1 + scorer_len + 1 + sortby_len + 1 + output_columns_len + 1 +
drilldown_len + 1 + drilldown_sortby_len + 1 +
drilldown_output_columns_len + 1 + match_escalation_threshold_len + 1 +
query_expansion_len + 1 + query_flags_len + 1 +
sizeof(grn_content_type) + sizeof(int) * 4;
long long int threshold, original_threshold = 0;
if (cache_key_size <= GRN_TABLE_MAX_KEY_SIZE) {
grn_obj *cache;
char *cp = cache_key;
memcpy(cp, table, table_len);
cp += table_len; *cp++ = '\0';
memcpy(cp, match_columns, match_columns_len);
cp += match_columns_len; *cp++ = '\0';
memcpy(cp, query, query_len);
cp += query_len; *cp++ = '\0';
memcpy(cp, filter, filter_len);
cp += filter_len; *cp++ = '\0';
memcpy(cp, scorer, scorer_len);
cp += scorer_len; *cp++ = '\0';
memcpy(cp, sortby, sortby_len);
cp += sortby_len; *cp++ = '\0';
memcpy(cp, output_columns, output_columns_len);
cp += output_columns_len; *cp++ = '\0';
memcpy(cp, drilldown, drilldown_len);
cp += drilldown_len; *cp++ = '\0';
memcpy(cp, drilldown_sortby, drilldown_sortby_len);
cp += drilldown_sortby_len; *cp++ = '\0';
memcpy(cp, drilldown_output_columns, drilldown_output_columns_len);
cp += drilldown_output_columns_len; *cp++ = '\0';
memcpy(cp, match_escalation_threshold, match_escalation_threshold_len);
cp += match_escalation_threshold_len; *cp++ = '\0';
memcpy(cp, query_expansion, query_expansion_len);
cp += query_expansion_len; *cp++ = '\0';
memcpy(cp, query_flags, query_flags_len);
cp += query_flags_len; *cp++ = '\0';
memcpy(cp, &output_type, sizeof(grn_content_type)); cp += sizeof(grn_content_type);
memcpy(cp, &offset, sizeof(int)); cp += sizeof(int);
memcpy(cp, &limit, sizeof(int)); cp += sizeof(int);
memcpy(cp, &drilldown_offset, sizeof(int)); cp += sizeof(int);
memcpy(cp, &drilldown_limit, sizeof(int)); cp += sizeof(int);
if ((cache = grn_cache_fetch(ctx, cache_key, cache_key_size))) {
GRN_TEXT_PUT(ctx, outbuf, GRN_TEXT_VALUE(cache), GRN_TEXT_LEN(cache));
grn_cache_unref(cache_key, cache_key_size);
LAP(":", "cache(%" GRN_FMT_LLD ")", (long long int)GRN_TEXT_LEN(cache));
return ctx->rc;
}
}
if (match_escalation_threshold_len) {
const char *end, *rest;
original_threshold = grn_ctx_get_match_escalation_threshold(ctx);
end = match_escalation_threshold + match_escalation_threshold_len;
threshold = grn_atoll(match_escalation_threshold, end, &rest);
if (end == rest) {
grn_ctx_set_match_escalation_threshold(ctx, threshold);
}
}
if ((table_ = grn_ctx_get(ctx, table, table_len))) {
// match_columns_ = grn_obj_column(ctx, table_, match_columns, match_columns_len);
if (query_len || filter_len) {
grn_obj *v;
GRN_EXPR_CREATE_FOR_QUERY(ctx, table_, cond, v);
if (cond) {
if (match_columns_len) {
GRN_EXPR_CREATE_FOR_QUERY(ctx, table_, match_columns_, v);
if (match_columns_) {
grn_expr_parse(ctx, match_columns_, match_columns, match_columns_len,
NULL, GRN_OP_MATCH, GRN_OP_AND,
GRN_EXPR_SYNTAX_SCRIPT);
} else {
/* todo */
}
}
if (query_len) {
grn_expr_flags flags;
grn_obj query_expansion_buf;
GRN_TEXT_INIT(&query_expansion_buf, 0);
flags = GRN_EXPR_SYNTAX_QUERY;
if (query_flags_len) {
flags |= grn_parse_query_flags(ctx, query_flags, query_flags_len);
} else {
flags |= GRN_EXPR_ALLOW_PRAGMA|GRN_EXPR_ALLOW_COLUMN;
if (ctx->rc) {
grn_obj_unlink(ctx, cond);
goto exit;
}
}
if (query_expansion_len) {
grn_obj *query_expansion_column;
query_expansion_column = grn_ctx_get(ctx, query_expansion, query_expansion_len);
if (query_expansion_column) {
grn_obj *query_expansion_table;
query_expansion_table = grn_column_table(ctx, query_expansion_column);
if (query_expansion_table) {
expand_query(ctx, query_expansion_table, query_expansion_column, flags,
query, query_len, &query_expansion_buf);
query = GRN_TEXT_VALUE(&query_expansion_buf);
query_len = GRN_TEXT_LEN(&query_expansion_buf);
grn_obj_unlink(ctx, query_expansion_table);
}
grn_obj_unlink(ctx, query_expansion_column);
} else {
ERR(GRN_INVALID_ARGUMENT,
"nonexistent query expansion column: <%.*s>",
query_expansion_len, query_expansion);
grn_obj_unlink(ctx, cond);
GRN_OBJ_FIN(ctx, &query_expansion_buf);
goto exit;
}
}
grn_expr_parse(ctx, cond, query, query_len,
match_columns_, GRN_OP_MATCH, GRN_OP_AND, flags);
GRN_OBJ_FIN(ctx, &query_expansion_buf);
if (!ctx->rc && filter_len) {
grn_expr_parse(ctx, cond, filter, filter_len,
match_columns_, GRN_OP_MATCH, GRN_OP_AND,
GRN_EXPR_SYNTAX_SCRIPT);
if (!ctx->rc) { grn_expr_append_op(ctx, cond, GRN_OP_AND, 2); }
}
} else {
grn_expr_parse(ctx, cond, filter, filter_len,
match_columns_, GRN_OP_MATCH, GRN_OP_AND,
GRN_EXPR_SYNTAX_SCRIPT);
}
cacheable *= ((grn_expr *)cond)->cacheable;
taintable += ((grn_expr *)cond)->taintable;
/*
grn_obj strbuf;
GRN_TEXT_INIT(&strbuf, 0);
grn_expr_inspect(ctx, &strbuf, cond);
GRN_TEXT_PUTC(ctx, &strbuf, '\0');
GRN_LOG(ctx, GRN_LOG_NOTICE, "query=(%s)", GRN_TEXT_VALUE(&strbuf));
GRN_OBJ_FIN(ctx, &strbuf);
*/
if (!ctx->rc) { res = grn_table_select(ctx, table_, cond, NULL, GRN_OP_OR); }
if (match_columns_) { grn_obj_unlink(ctx, match_columns_); }
grn_obj_unlink(ctx, cond);
} else {
/* todo */
ERRCLR(ctx);
}
} else {
res = table_;
}
nhits = res ? grn_table_size(ctx, res) : 0;
LAP(":", "select(%d)", nhits);
if (res) {
uint32_t ngkeys;
grn_table_sort_key *gkeys = NULL;
int result_size = 1;
if (!ctx->rc && drilldown_len) {
gkeys = grn_table_sort_key_from_str(ctx,
drilldown, drilldown_len,
res, &ngkeys);
if (gkeys) {
result_size += ngkeys;
}
}
GRN_OUTPUT_ARRAY_OPEN("RESULT", result_size);
if (scorer && scorer_len) {
grn_obj *v;
GRN_EXPR_CREATE_FOR_QUERY(ctx, res, scorer_, v);
if (scorer_ && v) {
grn_table_cursor *tc;
grn_expr_parse(ctx, scorer_, scorer, scorer_len, NULL, GRN_OP_MATCH, GRN_OP_AND,
GRN_EXPR_SYNTAX_SCRIPT|GRN_EXPR_ALLOW_UPDATE);
cacheable *= ((grn_expr *)scorer_)->cacheable;
taintable += ((grn_expr *)scorer_)->taintable;
if ((tc = grn_table_cursor_open(ctx, res, NULL, 0, NULL, 0, 0, -1, 0))) {
while (!grn_table_cursor_next_o(ctx, tc, v)) {
grn_expr_exec(ctx, scorer_, 0);
}
grn_table_cursor_close(ctx, tc);
}
grn_obj_unlink(ctx, scorer_);
}
LAP(":", "score(%d)", nhits);
}
grn_normalize_offset_and_limit(ctx, nhits, &offset, &limit);
if (sortby_len &&
(keys = grn_table_sort_key_from_str(ctx, sortby, sortby_len, res, &nkeys))) {
if ((sorted = grn_table_create(ctx, NULL, 0, NULL,
GRN_OBJ_TABLE_NO_KEY, NULL, res))) {
grn_table_sort(ctx, res, offset, limit, sorted, keys, nkeys);
LAP(":", "sort(%d)", limit);
GRN_OBJ_FORMAT_INIT(&format, nhits, 0, limit, offset);
format.flags =
GRN_OBJ_FORMAT_WITH_COLUMN_NAMES|
GRN_OBJ_FORMAT_XML_ELEMENT_RESULTSET;
grn_obj_columns(ctx, sorted, output_columns, output_columns_len, &format.columns);
GRN_OUTPUT_OBJ(sorted, &format);
GRN_OBJ_FORMAT_FIN(ctx, &format);
grn_obj_unlink(ctx, sorted);
}
grn_table_sort_key_close(ctx, keys, nkeys);
} else {
if (!ctx->rc) {
GRN_OBJ_FORMAT_INIT(&format, nhits, offset, limit, offset);
format.flags =
GRN_OBJ_FORMAT_WITH_COLUMN_NAMES|
GRN_OBJ_FORMAT_XML_ELEMENT_RESULTSET;
grn_obj_columns(ctx, res, output_columns, output_columns_len, &format.columns);
GRN_OUTPUT_OBJ(res, &format);
GRN_OBJ_FORMAT_FIN(ctx, &format);
}
}
LAP(":", "output(%d)", limit);
if (!ctx->rc && drilldown_len) {
uint32_t i;
grn_table_group_result g = {NULL, 0, 0, 1, GRN_TABLE_GROUP_CALC_COUNT, 0};
if (gkeys) {
for (i = 0; i < ngkeys; i++) {
if ((g.table = grn_table_create_for_group(ctx, NULL, 0, NULL,
GRN_TABLE_HASH_KEY|GRN_OBJ_WITH_SUBREC,
gkeys[i].key, NULL))) {
int n_drilldown_offset = drilldown_offset,
n_drilldown_limit = drilldown_limit;
grn_table_group(ctx, res, &gkeys[i], 1, &g, 1);
nhits = grn_table_size(ctx, g.table);
grn_normalize_offset_and_limit(ctx, nhits,
&n_drilldown_offset, &n_drilldown_limit);
if (drilldown_sortby_len) {
if ((keys = grn_table_sort_key_from_str(ctx,
drilldown_sortby, drilldown_sortby_len,
g.table, &nkeys))) {
if ((sorted = grn_table_create(ctx, NULL, 0, NULL, GRN_OBJ_TABLE_NO_KEY,
NULL, g.table))) {
grn_table_sort(ctx, g.table, n_drilldown_offset, n_drilldown_limit,
sorted, keys, nkeys);
GRN_OBJ_FORMAT_INIT(&format, nhits, 0,
n_drilldown_limit, n_drilldown_offset);
format.flags =
GRN_OBJ_FORMAT_WITH_COLUMN_NAMES|
GRN_OBJ_FORMAT_XML_ELEMENT_NAVIGATIONENTRY;
grn_obj_columns(ctx, sorted,
drilldown_output_columns, drilldown_output_columns_len,
&format.columns);
GRN_OUTPUT_OBJ(sorted, &format);
GRN_OBJ_FORMAT_FIN(ctx, &format);
grn_obj_unlink(ctx, sorted);
}
grn_table_sort_key_close(ctx, keys, nkeys);
}
} else {
GRN_OBJ_FORMAT_INIT(&format, nhits, n_drilldown_offset,
n_drilldown_limit, n_drilldown_offset);
format.flags =
GRN_OBJ_FORMAT_WITH_COLUMN_NAMES|
GRN_OBJ_FORMAT_XML_ELEMENT_NAVIGATIONENTRY;
grn_obj_columns(ctx, g.table, drilldown_output_columns,
drilldown_output_columns_len, &format.columns);
GRN_OUTPUT_OBJ(g.table, &format);
GRN_OBJ_FORMAT_FIN(ctx, &format);
}
grn_obj_unlink(ctx, g.table);
}
LAP(":", "drilldown(%d)", nhits);
}
grn_table_sort_key_close(ctx, gkeys, ngkeys);
}
}
if (res != table_) { grn_obj_unlink(ctx, res); }
} else {
GRN_OUTPUT_ARRAY_OPEN("RESULT", 0);
}
GRN_OUTPUT_ARRAY_CLOSE();
if (!ctx->rc && cacheable && cache_key_size <= GRN_TABLE_MAX_KEY_SIZE
&& (!cache || cache_len != 2 || *cache != 'n' || *(cache + 1) != 'o')) {
grn_cache_update(ctx, cache_key, cache_key_size, outbuf);
}
if (taintable) { grn_db_touch(ctx, DB_OBJ(table_)->db); }
grn_obj_unlink(ctx, table_);
} else {
ERR(GRN_INVALID_ARGUMENT, "invalid table name: <%.*s>", table_len, table);
}
exit:
if (match_escalation_threshold_len) {
grn_ctx_set_match_escalation_threshold(ctx, original_threshold);
}
/* GRN_LOG(ctx, GRN_LOG_NONE, "%d", ctx->seqno); */
return ctx->rc;
}
static grn_obj *
proc_select(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
int offset = GRN_TEXT_LEN(VAR(7))
? grn_atoi(GRN_TEXT_VALUE(VAR(7)), GRN_BULK_CURR(VAR(7)), NULL)
: 0;
int limit = GRN_TEXT_LEN(VAR(8))
? grn_atoi(GRN_TEXT_VALUE(VAR(8)), GRN_BULK_CURR(VAR(8)), NULL)
: DEFAULT_LIMIT;
const char *output_columns = GRN_TEXT_VALUE(VAR(6));
uint32_t output_columns_len = GRN_TEXT_LEN(VAR(6));
const char *drilldown_output_columns = GRN_TEXT_VALUE(VAR(11));
uint32_t drilldown_output_columns_len = GRN_TEXT_LEN(VAR(11));
int drilldown_offset = GRN_TEXT_LEN(VAR(12))
? grn_atoi(GRN_TEXT_VALUE(VAR(12)), GRN_BULK_CURR(VAR(12)), NULL)
: 0;
int drilldown_limit = GRN_TEXT_LEN(VAR(13))
? grn_atoi(GRN_TEXT_VALUE(VAR(13)), GRN_BULK_CURR(VAR(13)), NULL)
: DEFAULT_DRILLDOWN_LIMIT;
if (!output_columns_len) {
output_columns = DEFAULT_OUTPUT_COLUMNS;
output_columns_len = strlen(DEFAULT_OUTPUT_COLUMNS);
}
if (!drilldown_output_columns_len) {
drilldown_output_columns = DEFAULT_DRILLDOWN_OUTPUT_COLUMNS;
drilldown_output_columns_len = strlen(DEFAULT_DRILLDOWN_OUTPUT_COLUMNS);
}
if (grn_select(ctx, GRN_TEXT_VALUE(VAR(0)), GRN_TEXT_LEN(VAR(0)),
GRN_TEXT_VALUE(VAR(1)), GRN_TEXT_LEN(VAR(1)),
GRN_TEXT_VALUE(VAR(2)), GRN_TEXT_LEN(VAR(2)),
GRN_TEXT_VALUE(VAR(3)), GRN_TEXT_LEN(VAR(3)),
GRN_TEXT_VALUE(VAR(4)), GRN_TEXT_LEN(VAR(4)),
GRN_TEXT_VALUE(VAR(5)), GRN_TEXT_LEN(VAR(5)),
output_columns, output_columns_len,
offset, limit,
GRN_TEXT_VALUE(VAR(9)), GRN_TEXT_LEN(VAR(9)),
GRN_TEXT_VALUE(VAR(10)), GRN_TEXT_LEN(VAR(10)),
drilldown_output_columns, drilldown_output_columns_len,
drilldown_offset, drilldown_limit,
GRN_TEXT_VALUE(VAR(14)), GRN_TEXT_LEN(VAR(14)),
GRN_TEXT_VALUE(VAR(15)), GRN_TEXT_LEN(VAR(15)),
GRN_TEXT_VALUE(VAR(16)), GRN_TEXT_LEN(VAR(16)),
GRN_TEXT_VALUE(VAR(17)), GRN_TEXT_LEN(VAR(17)))) {
}
return NULL;
}
static grn_obj *
proc_define_selector(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
uint32_t i, nvars;
grn_expr_var *vars;
grn_proc_get_info(ctx, user_data, &vars, &nvars, NULL);
for (i = 1; i < nvars; i++) {
GRN_TEXT_SET(ctx, &((vars + i)->value),
GRN_TEXT_VALUE(VAR(i)), GRN_TEXT_LEN(VAR(i)));
}
grn_proc_create(ctx,
GRN_TEXT_VALUE(VAR(0)), GRN_TEXT_LEN(VAR(0)),
GRN_PROC_COMMAND, proc_select, NULL, NULL, nvars - 1, vars + 1);
GRN_OUTPUT_BOOL(!ctx->rc);
return NULL;
}
static grn_obj *
proc_load(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_load(ctx, grn_get_ctype(VAR(4)),
GRN_TEXT_VALUE(VAR(1)), GRN_TEXT_LEN(VAR(1)),
GRN_TEXT_VALUE(VAR(2)), GRN_TEXT_LEN(VAR(2)),
GRN_TEXT_VALUE(VAR(0)), GRN_TEXT_LEN(VAR(0)),
GRN_TEXT_VALUE(VAR(3)), GRN_TEXT_LEN(VAR(3)),
GRN_TEXT_VALUE(VAR(5)), GRN_TEXT_LEN(VAR(5)));
if (ctx->impl->loader.stat != GRN_LOADER_END) {
grn_ctx_set_next_expr(ctx, grn_proc_get_info(ctx, user_data, NULL, NULL, NULL));
} else {
GRN_OUTPUT_INT64(ctx->impl->loader.nrecords);
if (ctx->impl->loader.table) {
grn_db_touch(ctx, DB_OBJ(ctx->impl->loader.table)->db);
}
/* maybe necessary : grn_ctx_loader_clear(ctx); */
}
return NULL;
}
static grn_obj *
proc_status(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_timeval now;
grn_cache_statistics statistics;
grn_timeval_now(ctx, &now);
grn_cache_get_statistics(ctx, &statistics);
GRN_OUTPUT_MAP_OPEN("RESULT", 18);
GRN_OUTPUT_CSTR("alloc_count");
GRN_OUTPUT_INT32(grn_alloc_count());
GRN_OUTPUT_CSTR("starttime");
GRN_OUTPUT_INT32(grn_starttime.tv_sec);
GRN_OUTPUT_CSTR("uptime");
GRN_OUTPUT_INT32(now.tv_sec - grn_starttime.tv_sec);
GRN_OUTPUT_CSTR("version");
GRN_OUTPUT_CSTR(grn_get_version());
GRN_OUTPUT_CSTR("n_queries");
GRN_OUTPUT_INT64(statistics.nfetches);
GRN_OUTPUT_CSTR("cache_hit_rate");
if (statistics.nfetches == 0) {
GRN_OUTPUT_FLOAT(0.0);
} else {
double cache_hit_rate;
cache_hit_rate = (double)statistics.nhits / (double)statistics.nfetches;
GRN_OUTPUT_FLOAT(cache_hit_rate * 100.0);
}
GRN_OUTPUT_CSTR("command_version");
GRN_OUTPUT_INT32(grn_ctx_get_command_version(ctx));
GRN_OUTPUT_CSTR("default_command_version");
GRN_OUTPUT_INT32(grn_get_default_command_version());
GRN_OUTPUT_CSTR("max_command_version");
GRN_OUTPUT_INT32(GRN_COMMAND_VERSION_MAX);
GRN_OUTPUT_MAP_CLOSE();
return NULL;
}
static grn_obj_flags
grn_parse_table_create_flags(grn_ctx *ctx, const char *nptr, const char *end)
{
grn_obj_flags flags = 0;
while (nptr < end) {
if (*nptr == '|' || *nptr == ' ') {
nptr += 1;
continue;
}
if (!memcmp(nptr, "TABLE_HASH_KEY", 14)) {
flags |= GRN_OBJ_TABLE_HASH_KEY;
nptr += 14;
} else if (!memcmp(nptr, "TABLE_PAT_KEY", 13)) {
flags |= GRN_OBJ_TABLE_PAT_KEY;
nptr += 13;
} else if (!memcmp(nptr, "TABLE_DAT_KEY", 13)) {
flags |= GRN_OBJ_TABLE_DAT_KEY;
nptr += 13;
} else if (!memcmp(nptr, "TABLE_NO_KEY", 12)) {
flags |= GRN_OBJ_TABLE_NO_KEY;
nptr += 12;
} else if (!memcmp(nptr, "TABLE_VIEW", 10)) {
flags |= GRN_OBJ_TABLE_VIEW;
nptr += 10;
} else if (!memcmp(nptr, "KEY_NORMALIZE", 13)) {
flags |= GRN_OBJ_KEY_NORMALIZE;
nptr += 13;
} else if (!memcmp(nptr, "KEY_WITH_SIS", 12)) {
flags |= GRN_OBJ_KEY_WITH_SIS;
nptr += 12;
} else {
ERR(GRN_INVALID_ARGUMENT, "invalid flags option: %.*s",
(int)(end - nptr), nptr);
return 0;
}
}
return flags;
}
static grn_obj_flags
grn_parse_column_create_flags(grn_ctx *ctx, const char *nptr, const char *end)
{
grn_obj_flags flags = 0;
while (nptr < end) {
if (*nptr == '|' || *nptr == ' ') {
nptr += 1;
continue;
}
if (!memcmp(nptr, "COLUMN_SCALAR", 13)) {
flags |= GRN_OBJ_COLUMN_SCALAR;
nptr += 13;
} else if (!memcmp(nptr, "COLUMN_VECTOR", 13)) {
flags |= GRN_OBJ_COLUMN_VECTOR;
nptr += 13;
} else if (!memcmp(nptr, "COLUMN_INDEX", 12)) {
flags |= GRN_OBJ_COLUMN_INDEX;
nptr += 12;
} else if (!memcmp(nptr, "WITH_SECTION", 12)) {
flags |= GRN_OBJ_WITH_SECTION;
nptr += 12;
} else if (!memcmp(nptr, "WITH_WEIGHT", 11)) {
flags |= GRN_OBJ_WITH_WEIGHT;
nptr += 11;
} else if (!memcmp(nptr, "WITH_POSITION", 13)) {
flags |= GRN_OBJ_WITH_POSITION;
nptr += 13;
} else if (!memcmp(nptr, "RING_BUFFER", 11)) {
flags |= GRN_OBJ_RING_BUFFER;
nptr += 11;
} else {
ERR(GRN_INVALID_ARGUMENT, "invalid flags option: %.*s",
(int)(end - nptr), nptr);
return 0;
}
}
return flags;
}
static void
grn_table_create_flags_to_text(grn_ctx *ctx, grn_obj *buf, grn_obj_flags flags)
{
GRN_BULK_REWIND(buf);
switch (flags & GRN_OBJ_TABLE_TYPE_MASK) {
case GRN_OBJ_TABLE_HASH_KEY:
GRN_TEXT_PUTS(ctx, buf, "TABLE_HASH_KEY");
break;
case GRN_OBJ_TABLE_PAT_KEY:
GRN_TEXT_PUTS(ctx, buf, "TABLE_PAT_KEY");
break;
case GRN_OBJ_TABLE_DAT_KEY:
GRN_TEXT_PUTS(ctx, buf, "TABLE_DAT_KEY");
break;
case GRN_OBJ_TABLE_NO_KEY:
GRN_TEXT_PUTS(ctx, buf, "TABLE_NO_KEY");
break;
case GRN_OBJ_TABLE_VIEW:
GRN_TEXT_PUTS(ctx, buf, "TABLE_VIEW");
break;
}
if (flags & GRN_OBJ_KEY_WITH_SIS) {
GRN_TEXT_PUTS(ctx, buf, "|KEY_WITH_SIS");
}
if (flags & GRN_OBJ_KEY_NORMALIZE) {
GRN_TEXT_PUTS(ctx, buf, "|KEY_NORMALIZE");
}
if (flags & GRN_OBJ_PERSISTENT) {
GRN_TEXT_PUTS(ctx, buf, "|PERSISTENT");
}
}
static void
grn_column_create_flags_to_text(grn_ctx *ctx, grn_obj *buf, grn_obj_flags flags)
{
GRN_BULK_REWIND(buf);
switch (flags & GRN_OBJ_COLUMN_TYPE_MASK) {
case GRN_OBJ_COLUMN_SCALAR:
GRN_TEXT_PUTS(ctx, buf, "COLUMN_SCALAR");
break;
case GRN_OBJ_COLUMN_VECTOR:
GRN_TEXT_PUTS(ctx, buf, "COLUMN_VECTOR");
break;
case GRN_OBJ_COLUMN_INDEX:
GRN_TEXT_PUTS(ctx, buf, "COLUMN_INDEX");
if (flags & GRN_OBJ_WITH_SECTION) {
GRN_TEXT_PUTS(ctx, buf, "|WITH_SECTION");
}
if (flags & GRN_OBJ_WITH_WEIGHT) {
GRN_TEXT_PUTS(ctx, buf, "|WITH_WEIGHT");
}
if (flags & GRN_OBJ_WITH_POSITION) {
GRN_TEXT_PUTS(ctx, buf, "|WITH_POSITION");
}
break;
}
switch (flags & GRN_OBJ_COMPRESS_MASK) {
case GRN_OBJ_COMPRESS_NONE:
break;
case GRN_OBJ_COMPRESS_ZLIB:
GRN_TEXT_PUTS(ctx, buf, "|COMPRESS_ZLIB");
break;
case GRN_OBJ_COMPRESS_LZO:
GRN_TEXT_PUTS(ctx, buf, "|COMPRESS_LZO");
break;
}
if (flags & GRN_OBJ_PERSISTENT) {
GRN_TEXT_PUTS(ctx, buf, "|PERSISTENT");
}
}
static grn_obj *
proc_table_create(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_obj *table;
const char *rest;
grn_obj_flags flags = grn_atoi(GRN_TEXT_VALUE(VAR(1)),
GRN_BULK_CURR(VAR(1)), &rest);
if (GRN_TEXT_VALUE(VAR(1)) == rest) {
flags = grn_parse_table_create_flags(ctx, GRN_TEXT_VALUE(VAR(1)),
GRN_BULK_CURR(VAR(1)));
if (ctx->rc) { goto exit; }
}
if (GRN_TEXT_LEN(VAR(0))) {
grn_obj *key_type = NULL, *value_type = NULL;
if (GRN_TEXT_LEN(VAR(2)) > 0) {
key_type = grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(2)),
GRN_TEXT_LEN(VAR(2)));
if (!key_type) {
ERR(GRN_INVALID_ARGUMENT,
"[table][create] key type doesn't exist: <%.*s> (%.*s)",
(int)GRN_TEXT_LEN(VAR(0)), GRN_TEXT_VALUE(VAR(0)),
(int)GRN_TEXT_LEN(VAR(2)), GRN_TEXT_VALUE(VAR(2)));
return NULL;
}
}
if (GRN_TEXT_LEN(VAR(3)) > 0) {
value_type = grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(3)),
GRN_TEXT_LEN(VAR(3)));
if (!value_type) {
ERR(GRN_INVALID_ARGUMENT,
"[table][create] value type doesn't exist: <%.*s> (%.*s)",
(int)GRN_TEXT_LEN(VAR(0)), GRN_TEXT_VALUE(VAR(0)),
(int)GRN_TEXT_LEN(VAR(3)), GRN_TEXT_VALUE(VAR(3)));
return NULL;
}
}
flags |= GRN_OBJ_PERSISTENT;
table = grn_table_create(ctx,
GRN_TEXT_VALUE(VAR(0)),
GRN_TEXT_LEN(VAR(0)),
NULL, flags,
key_type,
value_type);
if (table) {
grn_obj_set_info(ctx, table,
GRN_INFO_DEFAULT_TOKENIZER,
grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(4)),
GRN_TEXT_LEN(VAR(4))));
grn_obj_unlink(ctx, table);
}
} else {
ERR(GRN_INVALID_ARGUMENT,
"[table][create] should not create anonymous table");
}
exit:
GRN_OUTPUT_BOOL(!ctx->rc);
return NULL;
}
static grn_obj *
proc_table_remove(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_obj *table;
table = grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(0)),
GRN_TEXT_LEN(VAR(0)));
if (table) {
grn_obj_remove(ctx,table);
} else {
ERR(GRN_INVALID_ARGUMENT, "table not found.");
}
GRN_OUTPUT_BOOL(!ctx->rc);
return NULL;
}
static grn_obj *
proc_table_rename(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_rc rc = GRN_SUCCESS;
grn_obj *table = NULL;
if (GRN_TEXT_LEN(VAR(0)) == 0) {
rc = GRN_INVALID_ARGUMENT;
ERR(rc, "[table][rename] table name isn't specified");
goto exit;
}
table = grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(0)), GRN_TEXT_LEN(VAR(0)));
if (!table) {
rc = GRN_INVALID_ARGUMENT;
ERR(rc,
"[table][rename] table isn't found: <%.*s>",
(int)GRN_TEXT_LEN(VAR(0)), GRN_TEXT_VALUE(VAR(0)));
goto exit;
}
if (GRN_TEXT_LEN(VAR(1)) == 0) {
rc = GRN_INVALID_ARGUMENT;
ERR(rc,
"[table][rename] new table name isn't specified: <%.*s>",
(int)GRN_TEXT_LEN(VAR(0)), GRN_TEXT_VALUE(VAR(0)));
goto exit;
}
rc = grn_table_rename(ctx, table,
GRN_TEXT_VALUE(VAR(1)), GRN_TEXT_LEN(VAR(1)));
if (rc != GRN_SUCCESS && ctx->rc == GRN_SUCCESS) {
ERR(rc,
"[table][rename] failed to rename: <%.*s> -> <%.*s>",
(int)GRN_TEXT_LEN(VAR(0)), GRN_TEXT_VALUE(VAR(0)),
(int)GRN_TEXT_LEN(VAR(1)), GRN_TEXT_VALUE(VAR(1)));
}
exit:
GRN_OUTPUT_BOOL(!rc);
if (table) { grn_obj_unlink(ctx, table); }
return NULL;
}
static grn_obj *
proc_column_create(grn_ctx *ctx, int nargs, grn_obj **args, grn_user_data *user_data)
{
grn_obj *column, *table = NULL, *type = NULL;
const char *rest;
grn_obj_flags flags = grn_atoi(GRN_TEXT_VALUE(VAR(2)),
GRN_BULK_CURR(VAR(2)), &rest);
if (GRN_TEXT_VALUE(VAR(2)) == rest) {
flags = grn_parse_column_create_flags(ctx, GRN_TEXT_VALUE(VAR(2)),
GRN_BULK_CURR(VAR(2)));
if (ctx->rc) { goto exit; }
}
table = grn_ctx_get(ctx, GRN_TEXT_VALUE(VAR(0)), GRN_TEXT_LEN(VAR(0)));