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store.c
1554 lines (1489 loc) · 45.4 KB
/
store.c
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/* -*- c-basic-offset: 2 -*- */
/* Copyright(C) 2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "groonga_in.h"
#include "str.h"
#include "store.h"
#include "ql.h"
#include "output.h"
#include <string.h>
/* rectangular arrays */
#define GRN_RA_SEGMENT_SIZE (1 << 22)
grn_ra *
grn_ra_create(grn_ctx *ctx, const char *path, unsigned int element_size)
{
grn_io *io;
int max_segments, n_elm, w_elm;
grn_ra *ra = NULL;
struct grn_ra_header *header;
unsigned actual_size;
if (element_size > GRN_RA_SEGMENT_SIZE) {
GRN_LOG(ctx, GRN_LOG_ERROR, "element_size too large (%d)", element_size);
return NULL;
}
for (actual_size = 1; actual_size < element_size; actual_size *= 2) ;
max_segments = ((GRN_ID_MAX + 1) / GRN_RA_SEGMENT_SIZE) * actual_size;
io = grn_io_create(ctx, path, sizeof(struct grn_ra_header),
GRN_RA_SEGMENT_SIZE, max_segments, grn_io_auto,
GRN_IO_EXPIRE_SEGMENT);
if (!io) { return NULL; }
header = grn_io_header(io);
grn_io_set_type(io, GRN_COLUMN_FIX_SIZE);
header->element_size = actual_size;
if (!(ra = GRN_GMALLOC(sizeof(grn_ra)))) {
grn_io_close(ctx, io);
return NULL;
}
n_elm = GRN_RA_SEGMENT_SIZE / header->element_size;
for (w_elm = 22; (1 << w_elm) > n_elm; w_elm--);
GRN_DB_OBJ_SET_TYPE(ra, GRN_COLUMN_FIX_SIZE);
ra->io = io;
ra->header = header;
ra->element_mask = n_elm - 1;
ra->element_width = w_elm;
return ra;
}
grn_ra *
grn_ra_open(grn_ctx *ctx, const char *path)
{
grn_io *io;
int n_elm, w_elm;
grn_ra *ra = NULL;
struct grn_ra_header *header;
io = grn_io_open(ctx, path, grn_io_auto);
if (!io) { return NULL; }
header = grn_io_header(io);
if (grn_io_get_type(io) != GRN_COLUMN_FIX_SIZE) {
ERR(GRN_INVALID_FORMAT, "file type unmatch");
grn_io_close(ctx, io);
return NULL;
}
if (!(ra = GRN_GMALLOC(sizeof(grn_ra)))) {
grn_io_close(ctx, io);
return NULL;
}
n_elm = GRN_RA_SEGMENT_SIZE / header->element_size;
for (w_elm = 22; (1 << w_elm) > n_elm; w_elm--);
GRN_DB_OBJ_SET_TYPE(ra, GRN_COLUMN_FIX_SIZE);
ra->io = io;
ra->header = header;
ra->element_mask = n_elm - 1;
ra->element_width = w_elm;
return ra;
}
grn_rc
grn_ra_info(grn_ctx *ctx, grn_ra *ra, unsigned int *element_size)
{
if (!ra) { return GRN_INVALID_ARGUMENT; }
if (element_size) { *element_size = ra->header->element_size; }
return GRN_SUCCESS;
}
grn_rc
grn_ra_close(grn_ctx *ctx, grn_ra *ra)
{
grn_rc rc;
if (!ra) { return GRN_INVALID_ARGUMENT; }
rc = grn_io_close(ctx, ra->io);
GRN_GFREE(ra);
return rc;
}
grn_rc
grn_ra_remove(grn_ctx *ctx, const char *path)
{
if (!path) { return GRN_INVALID_ARGUMENT; }
return grn_io_remove(ctx, path);
}
void *
grn_ra_ref(grn_ctx *ctx, grn_ra *ra, grn_id id)
{
void *p = NULL;
uint16_t seg;
if (id > GRN_ID_MAX) { return NULL; }
seg = id >> ra->element_width;
GRN_IO_SEG_REF(ra->io, seg, p);
if (!p) { return NULL; }
return (void *)(((byte *)p) + ((id & ra->element_mask) * ra->header->element_size));
}
grn_rc
grn_ra_unref(grn_ctx *ctx, grn_ra *ra, grn_id id)
{
uint16_t seg;
if (id > GRN_ID_MAX) { return GRN_INVALID_ARGUMENT; }
seg = id >> ra->element_width;
GRN_IO_SEG_UNREF(ra->io, seg);
return GRN_SUCCESS;
}
void *
grn_ra_ref_cache(grn_ctx *ctx, grn_ra *ra, grn_id id, grn_ra_cache *cache)
{
void *p = NULL;
uint16_t seg;
if (id > GRN_ID_MAX) { return NULL; }
seg = id >> ra->element_width;
if (seg == cache->seg) {
p = cache->p;
} else {
if (cache->seg != -1) { GRN_IO_SEG_UNREF(ra->io, cache->seg); }
GRN_IO_SEG_REF(ra->io, seg, p);
cache->seg = seg;
cache->p = p;
}
if (!p) { return NULL; }
return (void *)(((byte *)p) + ((id & ra->element_mask) * ra->header->element_size));
}
grn_rc
grn_ra_cache_fin(grn_ctx *ctx, grn_ra *ra, grn_id id)
{
uint16_t seg;
if (id > GRN_ID_MAX) { return GRN_INVALID_ARGUMENT; }
seg = id >> ra->element_width;
GRN_IO_SEG_UNREF(ra->io, seg);
return GRN_SUCCESS;
}
/**** jagged arrays ****/
#define GRN_JA_W_SEGREGATE_THRESH 7
#define GRN_JA_W_CAPACITY 38
#define GRN_JA_W_SEGMENT 22
#define JA_ESEG_VOID (0xffffffffU)
#define JA_SEGMENT_SIZE (1U << GRN_JA_W_SEGMENT)
#define JA_W_EINFO 3
#define JA_W_SEGMENTS_MAX (GRN_JA_W_CAPACITY - GRN_JA_W_SEGMENT)
#define JA_W_EINFO_IN_A_SEGMENT (GRN_JA_W_SEGMENT - JA_W_EINFO)
#define JA_N_EINFO_IN_A_SEGMENT (1U << JA_W_EINFO_IN_A_SEGMENT)
#define JA_M_EINFO_IN_A_SEGMENT (JA_N_EINFO_IN_A_SEGMENT - 1)
#define JA_N_GARBAGES_IN_A_SEGMENT ((1U << (GRN_JA_W_SEGMENT - 3)) - 2)
#define JA_N_ELEMENT_VARIATION (GRN_JA_W_SEGREGATE_THRESH - JA_W_EINFO + 1)
#define JA_N_DSEGMENTS (1U << JA_W_SEGMENTS_MAX)
#define JA_N_ESEGMENTS (1U << (GRN_ID_WIDTH - JA_W_EINFO_IN_A_SEGMENT))
typedef struct _grn_ja_einfo grn_ja_einfo;
struct _grn_ja_einfo {
union {
struct {
uint16_t seg;
uint16_t pos;
uint16_t size;
uint8_t c1;
uint8_t c2;
} n;
struct {
uint32_t size;
uint16_t seg;
uint8_t c1;
uint8_t c2;
} h;
uint8_t c[8];
} u;
};
#define ETINY (0x80)
#define EHUGE (0x40)
#define ETINY_P(e) ((e)->u.c[7] & ETINY)
#define ETINY_ENC(e,_size) ((e)->u.c[7] = (_size) + ETINY)
#define ETINY_DEC(e,_size) ((_size) = (e)->u.c[7] & ~(ETINY|EHUGE))
#define EHUGE_P(e) ((e)->u.c[7] & EHUGE)
#define EHUGE_ENC(e,_seg,_size) {\
(e)->u.h.c1 = 0;\
(e)->u.h.c2 = EHUGE;\
(e)->u.h.seg = (_seg);\
(e)->u.h.size = (_size);\
}
#define EHUGE_DEC(e,_seg,_size) {\
(_seg) = (e)->u.h.seg;\
(_size) = (e)->u.h.size;\
}
#define EINFO_ENC(e,_seg,_pos,_size) {\
(e)->u.n.c1 = (_pos) >> 16;\
(e)->u.n.c2 = ((_size) >> 16);\
(e)->u.n.seg = (_seg);\
(e)->u.n.pos = (_pos);\
(e)->u.n.size = (_size);\
}
#define EINFO_DEC(e,_seg,_pos,_size) {\
(_seg) = (e)->u.n.seg;\
(_pos) = ((e)->u.n.c1 << 16) + (e)->u.n.pos;\
(_size) = ((e)->u.n.c2 << 16) + (e)->u.n.size;\
}
typedef struct {
uint32_t seg;
uint32_t pos;
} ja_pos;
typedef struct {
uint32_t head;
uint32_t tail;
uint32_t nrecs;
uint32_t next;
ja_pos recs[JA_N_GARBAGES_IN_A_SEGMENT];
} grn_ja_ginfo;
struct grn_ja_header {
uint32_t flags;
uint32_t curr_seg;
uint32_t curr_pos;
uint32_t max_element_size;
ja_pos free_elements[JA_N_ELEMENT_VARIATION];
uint32_t garbages[JA_N_ELEMENT_VARIATION];
uint32_t ngarbages[JA_N_ELEMENT_VARIATION];
uint32_t dsegs[JA_N_DSEGMENTS];
uint32_t esegs[JA_N_ESEGMENTS];
};
#define SEG_SEQ (0x10000000U)
#define SEG_HUGE (0x20000000U)
#define SEG_EINFO (0x30000000U)
#define SEG_GINFO (0x40000000U)
#define SEG_MASK (0xf0000000U)
#define SEGMENTS_AT(ja,seg) ((ja)->header->dsegs[seg])
#define SEGMENTS_SEGRE_ON(ja,seg,width) (SEGMENTS_AT(ja,seg) = width)
#define SEGMENTS_SEQ_ON(ja,seg) (SEGMENTS_AT(ja,seg) = SEG_SEQ)
#define SEGMENTS_HUGE_ON(ja,seg) (SEGMENTS_AT(ja,seg) = SEG_HUGE)
#define SEGMENTS_EINFO_ON(ja,seg,lseg) (SEGMENTS_AT(ja,seg) = SEG_EINFO|(lseg))
#define SEGMENTS_GINFO_ON(ja,seg,width) (SEGMENTS_AT(ja,seg) = SEG_GINFO|(width))
#define SEGMENTS_OFF(ja,seg) (SEGMENTS_AT(ja,seg) = 0)
grn_ja *
grn_ja_create(grn_ctx *ctx, const char *path, unsigned int max_element_size, uint32_t flags)
{
int i;
grn_io *io;
grn_ja *ja = NULL;
struct grn_ja_header *header;
io = grn_io_create(ctx, path, sizeof(struct grn_ja_header),
JA_SEGMENT_SIZE, JA_N_DSEGMENTS, grn_io_auto,
GRN_IO_EXPIRE_SEGMENT);
if (!io) { return NULL; }
grn_io_set_type(io, GRN_COLUMN_VAR_SIZE);
header = grn_io_header(io);
header->curr_pos = JA_SEGMENT_SIZE;
header->flags = flags;
for (i = 0; i < JA_N_ESEGMENTS; i++) { header->esegs[i] = JA_ESEG_VOID; }
if (!(ja = GRN_GMALLOC(sizeof(grn_ja)))) {
grn_io_close(ctx, io);
return NULL;
}
GRN_DB_OBJ_SET_TYPE(ja, GRN_COLUMN_VAR_SIZE);
ja->io = io;
ja->header = header;
header->max_element_size = max_element_size;
SEGMENTS_EINFO_ON(ja, 0, 0);
header->esegs[0] = 0;
return ja;
}
grn_ja *
grn_ja_open(grn_ctx *ctx, const char *path)
{
grn_io *io;
grn_ja *ja = NULL;
struct grn_ja_header *header;
io = grn_io_open(ctx, path, grn_io_auto);
if (!io) { return NULL; }
header = grn_io_header(io);
if (grn_io_get_type(io) != GRN_COLUMN_VAR_SIZE) {
ERR(GRN_INVALID_FORMAT, "file type unmatch");
grn_io_close(ctx, io);
return NULL;
}
if (!(ja = GRN_GMALLOC(sizeof(grn_ja)))) {
grn_io_close(ctx, io);
return NULL;
}
GRN_DB_OBJ_SET_TYPE(ja, GRN_COLUMN_VAR_SIZE);
ja->io = io;
ja->header = header;
return ja;
}
grn_rc
grn_ja_info(grn_ctx *ctx, grn_ja *ja, unsigned int *max_element_size)
{
if (!ja) { return GRN_INVALID_ARGUMENT; }
if (max_element_size) { *max_element_size = ja->header->max_element_size; }
return GRN_SUCCESS;
}
grn_rc
grn_ja_close(grn_ctx *ctx, grn_ja *ja)
{
grn_rc rc;
if (!ja) { return GRN_INVALID_ARGUMENT; }
rc = grn_io_close(ctx, ja->io);
GRN_GFREE(ja);
return rc;
}
grn_rc
grn_ja_remove(grn_ctx *ctx, const char *path)
{
if (!path) { return GRN_INVALID_ARGUMENT; }
return grn_io_remove(ctx, path);
}
static void *
grn_ja_ref_raw(grn_ctx *ctx, grn_ja *ja, grn_id id, grn_io_win *iw, uint32_t *value_len)
{
uint32_t pseg = ja->header->esegs[id >> JA_W_EINFO_IN_A_SEGMENT];
iw->size = 0;
iw->addr = NULL;
iw->pseg = pseg;
if (pseg != JA_ESEG_VOID) {
grn_ja_einfo *einfo = NULL;
GRN_IO_SEG_REF(ja->io, pseg, einfo);
if (einfo) {
grn_ja_einfo *ei = &einfo[id & JA_M_EINFO_IN_A_SEGMENT];
if (ETINY_P(ei)) {
iw->tiny_p = 1;
ETINY_DEC(ei, iw->size);
iw->io = ja->io;
iw->ctx = ctx;
iw->addr = (void *)ei;
} else {
uint32_t jag, vpos, vsize;
iw->tiny_p = 0;
if (EHUGE_P(ei)) {
EHUGE_DEC(ei, jag, vsize);
vpos = 0;
} else {
EINFO_DEC(ei, jag, vpos, vsize);
}
grn_io_win_map2(ja->io, ctx, iw, jag, vpos, vsize, grn_io_rdonly);
}
if (!iw->addr) { GRN_IO_SEG_UNREF(ja->io, pseg); }
}
}
*value_len = iw->size;
return iw->addr;
}
grn_rc
grn_ja_unref(grn_ctx *ctx, grn_io_win *iw)
{
if (!iw->addr) { return GRN_INVALID_ARGUMENT; }
GRN_IO_SEG_UNREF(iw->io, iw->pseg);
if (!iw->tiny_p) { grn_io_win_unmap2(iw); }
return GRN_SUCCESS;
}
#define DELETED 0x80000000
static grn_rc
grn_ja_free(grn_ctx *ctx, grn_ja *ja, grn_ja_einfo *einfo)
{
grn_ja_ginfo *ginfo = NULL;
uint32_t seg, pos, element_size, aligned_size, m, *gseg;
if (ETINY_P(einfo)) { return GRN_SUCCESS; }
if (EHUGE_P(einfo)) {
uint32_t n;
EHUGE_DEC(einfo, seg, element_size);
n = ((element_size + JA_SEGMENT_SIZE - 1) >> GRN_JA_W_SEGMENT);
for (; n--; seg++) { SEGMENTS_OFF(ja, seg); }
return GRN_SUCCESS;
}
EINFO_DEC(einfo, seg, pos, element_size);
if (!element_size) { return GRN_SUCCESS; }
{
int es = element_size - 1;
GRN_BIT_SCAN_REV(es, m);
m++;
}
if (m > GRN_JA_W_SEGREGATE_THRESH) {
byte *addr = NULL;
GRN_IO_SEG_REF(ja->io, seg, addr);
if (!addr) { return GRN_NO_MEMORY_AVAILABLE; }
aligned_size = (element_size + sizeof(grn_id) - 1) & ~(sizeof(grn_id) - 1);
*(uint32_t *)(addr + pos - sizeof(grn_id)) = DELETED|aligned_size;
if (SEGMENTS_AT(ja, seg) < (aligned_size + sizeof(grn_id)) + SEG_SEQ) {
GRN_LOG(ctx, GRN_WARN, "inconsistent ja entry detected (%d > %d)",
element_size, SEGMENTS_AT(ja, seg) - SEG_SEQ);
}
SEGMENTS_AT(ja, seg) -= (aligned_size + sizeof(grn_id));
if (SEGMENTS_AT(ja, seg) == SEG_SEQ) {
/* reuse the segment */
SEGMENTS_AT(ja, seg) = 0;
}
GRN_IO_SEG_UNREF(ja->io, seg);
} else {
uint32_t lseg = 0, lseg_;
gseg = &ja->header->garbages[m - JA_W_EINFO];
while ((lseg_ = *gseg)) {
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
GRN_IO_SEG_REF(ja->io, lseg_, ginfo);
if (!ginfo) {
return GRN_NO_MEMORY_AVAILABLE;
}
lseg = lseg_;
if (ginfo->nrecs < JA_N_GARBAGES_IN_A_SEGMENT) { break; }
gseg = &ginfo->next;
}
if (!lseg_) {
uint32_t i = 0;
while (SEGMENTS_AT(ja, i)) {
if (++i >= JA_N_DSEGMENTS) {
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
return GRN_NO_MEMORY_AVAILABLE;
}
}
SEGMENTS_GINFO_ON(ja, i, m - JA_W_EINFO);
*gseg = i;
lseg_ = *gseg;
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
GRN_IO_SEG_REF(ja->io, lseg_, ginfo);
lseg = lseg_;
if (!ginfo) {
return GRN_NO_MEMORY_AVAILABLE;
}
ginfo->head = 0;
ginfo->tail = 0;
ginfo->nrecs = 0;
ginfo->next = 0;
}
ginfo->recs[ginfo->head].seg = seg;
ginfo->recs[ginfo->head].pos = pos;
if (++ginfo->head == JA_N_GARBAGES_IN_A_SEGMENT) { ginfo->head = 0; }
ginfo->nrecs++;
ja->header->ngarbages[m - JA_W_EINFO]++;
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
}
return GRN_SUCCESS;
}
grn_rc
grn_ja_replace(grn_ctx *ctx, grn_ja *ja, grn_id id, grn_ja_einfo *ei, uint64_t *cas)
{
uint32_t lseg, *pseg, pos;
grn_ja_einfo *einfo = NULL, eback;
lseg = id >> JA_W_EINFO_IN_A_SEGMENT;
pos = id & JA_M_EINFO_IN_A_SEGMENT;
pseg = &ja->header->esegs[lseg];
if (grn_io_lock(ctx, ja->io, 10000000)) { return ctx->rc; }
if (*pseg == JA_ESEG_VOID) {
if (*pseg == JA_ESEG_VOID) {
int i = 0;
while (SEGMENTS_AT(ja, i)) {
if (++i >= JA_N_DSEGMENTS) {
ERR(GRN_NOT_ENOUGH_SPACE, "grn_ja file (%s) is full", ja->io->path);
goto exit;
}
}
SEGMENTS_EINFO_ON(ja, i, lseg);
*pseg = i;
}
}
GRN_IO_SEG_REF(ja->io, *pseg, einfo);
if (!einfo) { goto exit; }
eback = einfo[pos];
if (cas && *cas != *((uint64_t *)&eback)) {
ERR(GRN_CAS_ERROR, "cas failed (%d)", id);
goto exit;
}
// smb_wmb();
GRN_SET_64BIT(&einfo[pos], *ei);
GRN_IO_SEG_UNREF(ja->io, *pseg);
grn_ja_free(ctx, ja, &eback);
exit :
grn_io_unlock(ja->io);
return ctx->rc;
}
#define JA_N_GARBAGES_TH 10
// todo : grn_io_win_map2 cause verbose copy when nseg > 1, it should be copied directly.
static grn_rc
grn_ja_alloc(grn_ctx *ctx, grn_ja *ja, grn_id id,
uint32_t element_size, grn_ja_einfo *einfo, grn_io_win *iw)
{
byte *addr = NULL;
iw->io = ja->io;
iw->ctx = ctx;
iw->cached = 1;
if (element_size < 8) {
ETINY_ENC(einfo, element_size);
iw->tiny_p = 1;
iw->addr = (void *)einfo;
return GRN_SUCCESS;
}
iw->tiny_p = 0;
if (grn_io_lock(ctx, ja->io, 10000000)) { return ctx->rc; }
if (element_size + sizeof(grn_id) > JA_SEGMENT_SIZE) {
int i, j, n = (element_size + JA_SEGMENT_SIZE - 1) >> GRN_JA_W_SEGMENT;
for (i = 0, j = -1; i < JA_N_DSEGMENTS; i++) {
if (SEGMENTS_AT(ja, i)) {
j = i;
} else {
if (i == j + n) {
j++;
addr = grn_io_win_map2(ja->io, ctx, iw, j, 0, element_size, grn_io_wronly);
if (!addr) {
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
}
EHUGE_ENC(einfo, j, element_size);
for (; j <= i; j++) { SEGMENTS_HUGE_ON(ja, j); }
grn_io_unlock(ja->io);
return GRN_SUCCESS;
}
}
}
GRN_LOG(ctx, GRN_LOG_CRIT, "ja full. requested element_size=%d.", element_size);
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
} else {
ja_pos *vp;
int m, aligned_size, es = element_size - 1;
GRN_BIT_SCAN_REV(es, m);
m++;
if (m > GRN_JA_W_SEGREGATE_THRESH) {
uint32_t seg = ja->header->curr_seg, pos = ja->header->curr_pos;
if (pos + element_size + sizeof(grn_id) > JA_SEGMENT_SIZE) {
seg = 0;
while (SEGMENTS_AT(ja, seg)) {
if (++seg >= JA_N_DSEGMENTS) {
grn_io_unlock(ja->io);
GRN_LOG(ctx, GRN_LOG_CRIT, "ja full. seg=%d.", seg);
return GRN_NOT_ENOUGH_SPACE;
}
}
SEGMENTS_SEQ_ON(ja, seg);
ja->header->curr_seg = seg;
pos = 0;
}
GRN_IO_SEG_REF(ja->io, seg, addr);
if (!addr) {
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
}
*(grn_id *)(addr + pos) = id;
aligned_size = (element_size + sizeof(grn_id) - 1) & ~(sizeof(grn_id) - 1);
if (pos + aligned_size < JA_SEGMENT_SIZE) {
*(grn_id *)(addr + pos + aligned_size) = GRN_ID_NIL;
}
SEGMENTS_AT(ja, seg) += aligned_size + sizeof(grn_id);
pos += sizeof(grn_id);
EINFO_ENC(einfo, seg, pos, element_size);
iw->segment = seg;
iw->addr = addr + pos;
ja->header->curr_pos = pos + aligned_size;
grn_io_unlock(ja->io);
return GRN_SUCCESS;
} else {
uint32_t lseg = 0, lseg_;
aligned_size = 1 << m;
if (ja->header->ngarbages[m - JA_W_EINFO] > JA_N_GARBAGES_TH) {
grn_ja_ginfo *ginfo = NULL;
uint32_t seg, pos, *gseg;
gseg = &ja->header->garbages[m - JA_W_EINFO];
while ((lseg_ = *gseg)) {
GRN_IO_SEG_REF(ja->io, lseg_, ginfo);
if (!ginfo) {
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
}
if (ginfo->next || ginfo->nrecs > JA_N_GARBAGES_TH) {
seg = ginfo->recs[ginfo->tail].seg;
pos = ginfo->recs[ginfo->tail].pos;
GRN_IO_SEG_REF(ja->io, seg, addr);
if (!addr) {
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
GRN_IO_SEG_UNREF(ja->io, lseg_);
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
}
EINFO_ENC(einfo, seg, pos, element_size);
iw->segment = seg;
iw->addr = addr + pos;
if (++ginfo->tail == JA_N_GARBAGES_IN_A_SEGMENT) { ginfo->tail = 0; }
ginfo->nrecs--;
ja->header->ngarbages[m - JA_W_EINFO]--;
if (!ginfo->nrecs) {
SEGMENTS_OFF(ja, *gseg);
*gseg = ginfo->next;
}
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
GRN_IO_SEG_UNREF(ja->io, lseg_);
grn_io_unlock(ja->io);
return GRN_SUCCESS;
}
if (lseg) { GRN_IO_SEG_UNREF(ja->io, lseg); }
if (!ginfo->next) {
GRN_IO_SEG_UNREF(ja->io, lseg_);
break;
}
lseg = lseg_;
gseg = &ginfo->next;
}
}
vp = &ja->header->free_elements[m - JA_W_EINFO];
if (!vp->seg) {
int i = 0;
while (SEGMENTS_AT(ja, i)) {
if (++i >= JA_N_DSEGMENTS) {
grn_io_unlock(ja->io);
return GRN_NO_MEMORY_AVAILABLE;
}
}
SEGMENTS_SEGRE_ON(ja, i, m);
vp->seg = i;
vp->pos = 0;
}
}
grn_io_unlock(ja->io);
EINFO_ENC(einfo, vp->seg, vp->pos, element_size);
GRN_IO_SEG_REF(ja->io, vp->seg, addr);
if (!addr) { return GRN_NO_MEMORY_AVAILABLE; }
iw->segment = vp->seg;
iw->addr = addr + vp->pos;
if ((vp->pos += aligned_size) == JA_SEGMENT_SIZE) {
vp->seg = 0;
vp->pos = 0;
}
return GRN_SUCCESS;
}
}
static grn_rc
set_value(grn_ctx *ctx, grn_ja *ja, grn_id id, void *value, uint32_t value_len,
grn_ja_einfo *einfo)
{
grn_rc rc = GRN_SUCCESS;
grn_io_win iw;
if ((ja->header->flags & GRN_OBJ_WITH_BUFFER) &&
value_len >= ja->header->max_element_size) {
if ((rc = grn_ja_alloc(ctx, ja, id, value_len + sizeof(uint32_t), einfo, &iw))) {
return rc;
}
memcpy(iw.addr, value, value_len);
memset((byte *)iw.addr + value_len, 0, sizeof(uint32_t));
grn_io_win_unmap2(&iw);
} else {
if ((rc = grn_ja_alloc(ctx, ja, id, value_len, einfo, &iw))) { return rc; }
memcpy(iw.addr, value, value_len);
grn_io_win_unmap2(&iw);
}
return rc;
}
grn_rc
grn_ja_put_raw(grn_ctx *ctx, grn_ja *ja, grn_id id,
void *value, uint32_t value_len, int flags, uint64_t *cas)
{
int rc;
int64_t buf;
grn_io_win iw;
grn_ja_einfo einfo;
switch (flags & GRN_OBJ_SET_MASK) {
case GRN_OBJ_APPEND :
if (value_len) {
grn_io_win jw;
uint32_t old_len;
void *oldvalue = grn_ja_ref(ctx, ja, id, &jw, &old_len);
if (oldvalue) {
if ((ja->header->flags & GRN_OBJ_WITH_BUFFER) &&
old_len + value_len >= ja->header->max_element_size) {
if (old_len >= ja->header->max_element_size) {
byte *b = oldvalue;
uint32_t el = old_len - sizeof(uint32_t);
uint32_t pos = *((uint32_t *)(b + el));
GRN_ASSERT(pos < el);
if (el <= pos + value_len) {
uint32_t rest = el - pos;
memcpy(b + pos, value, rest);
memcpy(b, (byte *)value + rest, value_len - rest);
*((uint32_t *)(b + el)) = value_len - rest;
} else {
memcpy(b + pos, value, value_len);
*((uint32_t *)(b + el)) = pos + value_len;
}
} else {
if ((rc = grn_ja_alloc(ctx, ja, id,
value_len + old_len + sizeof(uint32_t),
&einfo, &iw))) {
grn_ja_unref(ctx, &jw);
return rc;
}
memcpy(iw.addr, oldvalue, old_len);
memcpy((byte *)iw.addr + old_len, value, value_len);
memset((byte *)iw.addr + old_len + value_len, 0, sizeof(uint32_t));
grn_io_win_unmap2(&iw);
}
} else {
if ((rc = grn_ja_alloc(ctx, ja, id, value_len + old_len, &einfo, &iw))) {
grn_ja_unref(ctx, &jw);
return rc;
}
memcpy(iw.addr, oldvalue, old_len);
memcpy((byte *)iw.addr + old_len, value, value_len);
grn_io_win_unmap2(&iw);
}
grn_ja_unref(ctx, &jw);
} else {
set_value(ctx, ja, id, value, value_len, &einfo);
}
}
break;
case GRN_OBJ_PREPEND :
if (value_len) {
grn_io_win jw;
uint32_t old_len;
void *oldvalue = grn_ja_ref(ctx, ja, id, &jw, &old_len);
if (oldvalue) {
if ((ja->header->flags & GRN_OBJ_WITH_BUFFER) &&
old_len + value_len >= ja->header->max_element_size) {
if (old_len >= ja->header->max_element_size) {
byte *b = oldvalue;
uint32_t el = old_len - sizeof(uint32_t);
uint32_t pos = *((uint32_t *)(b + el));
GRN_ASSERT(pos < el);
if (pos < value_len) {
uint32_t rest = value_len - pos;
memcpy(b, (byte *)value + rest, pos);
memcpy(b + el - rest, value, rest);
*((uint32_t *)(b + el)) = el - rest;
} else {
memcpy(b + pos - value_len, value, value_len);
*((uint32_t *)(b + el)) = pos - value_len;
}
} else {
if ((rc = grn_ja_alloc(ctx, ja, id,
value_len + old_len + sizeof(uint32_t),
&einfo, &iw))) {
grn_ja_unref(ctx, &jw);
return rc;
}
memcpy(iw.addr, value, value_len);
memcpy((byte *)iw.addr + value_len, oldvalue, old_len);
memset((byte *)iw.addr + value_len + old_len, 0, sizeof(uint32_t));
grn_io_win_unmap2(&iw);
}
} else {
if ((rc = grn_ja_alloc(ctx, ja, id, value_len + old_len, &einfo, &iw))) {
grn_ja_unref(ctx, &jw);
return rc;
}
memcpy(iw.addr, value, value_len);
memcpy((byte *)iw.addr + value_len, oldvalue, old_len);
grn_io_win_unmap2(&iw);
}
grn_ja_unref(ctx, &jw);
} else {
set_value(ctx, ja, id, value, value_len, &einfo);
}
}
break;
case GRN_OBJ_DECR :
if (value_len == sizeof(int64_t)) {
int64_t *v = (int64_t *)&buf;
*v = -(*(int64_t *)value);
value = v;
} else if (value_len == sizeof(int32_t)) {
int32_t *v = (int32_t *)&buf;
*v = -(*(int32_t *)value);
value = v;
} else {
return GRN_INVALID_ARGUMENT;
}
/* fallthru */
case GRN_OBJ_INCR :
{
grn_io_win jw;
uint32_t old_len;
void *oldvalue = grn_ja_ref(ctx, ja, id, &jw, &old_len);
if (oldvalue && old_len) {
grn_rc rc = GRN_INVALID_ARGUMENT;
if (old_len == sizeof(int64_t) && value_len == sizeof(int64_t)) {
(*(int64_t *)oldvalue) += (*(int64_t *)value);
rc = GRN_SUCCESS;
} else if (old_len == sizeof(int32_t) && value_len == sizeof(int32_t)) {
(*(int32_t *)oldvalue) += (*(int32_t *)value);
rc = GRN_SUCCESS;
}
grn_ja_unref(ctx, &jw);
return rc;
}
}
/* fallthru */
case GRN_OBJ_SET :
if (value_len) {
set_value(ctx, ja, id, value, value_len, &einfo);
} else {
memset(&einfo, 0, sizeof(grn_ja_einfo));
}
break;
default :
ERR(GRN_INVALID_ARGUMENT, "grn_ja_put_raw called with illegal flags value");
return ctx->rc;
}
if (grn_ja_replace(ctx, ja, id, &einfo, cas)) {
grn_rc rc = ctx->rc;
ctx->rc = GRN_SUCCESS;
grn_ja_free(ctx, ja, &einfo);
ctx->rc = rc;
}
return ctx->rc;
}
grn_rc
grn_ja_putv(grn_ctx *ctx, grn_ja *ja, grn_id id, grn_obj *vector, int flags)
{
grn_obj header, footer;
grn_rc rc = GRN_SUCCESS;
grn_section *vp;
int i, f = 0, n = grn_vector_size(ctx, vector);
GRN_TEXT_INIT(&header, 0);
GRN_TEXT_INIT(&footer, 0);
grn_text_benc(ctx, &header, n);
for (i = 0, vp = vector->u.v.sections; i < n; i++, vp++) {
grn_text_benc(ctx, &header, vp->length);
if (vp->weight || vp->domain) { f = 1; }
}
if (f) {
for (i = 0, vp = vector->u.v.sections; i < n; i++, vp++) {
grn_text_benc(ctx, &footer, vp->weight);
grn_text_benc(ctx, &footer, vp->domain);
}
}
{
grn_io_win iw;
grn_ja_einfo einfo;
grn_obj *body = vector->u.v.body;
size_t sizeh = GRN_BULK_VSIZE(&header);
size_t sizev = body ? GRN_BULK_VSIZE(body) : 0;
size_t sizef = GRN_BULK_VSIZE(&footer);
if ((rc = grn_ja_alloc(ctx, ja, id, sizeh + sizev + sizef, &einfo, &iw))) { goto exit; }
memcpy(iw.addr, GRN_BULK_HEAD(&header), sizeh);
if (body) { memcpy((char *)iw.addr + sizeh, GRN_BULK_HEAD(body), sizev); }
if (f) { memcpy((char *)iw.addr + sizeh + sizev, GRN_BULK_HEAD(&footer), sizef); }
grn_io_win_unmap2(&iw);
rc = grn_ja_replace(ctx, ja, id, &einfo, NULL);
}
exit :
GRN_OBJ_FIN(ctx, &footer);
GRN_OBJ_FIN(ctx, &header);
return rc;
}
uint32_t
grn_ja_size(grn_ctx *ctx, grn_ja *ja, grn_id id)
{
grn_ja_einfo *einfo = NULL, *ei;
uint32_t lseg, *pseg, pos, size;
lseg = id >> JA_W_EINFO_IN_A_SEGMENT;
pos = id & JA_M_EINFO_IN_A_SEGMENT;
pseg = &ja->header->esegs[lseg];
if (*pseg == JA_ESEG_VOID) {
ctx->rc = GRN_INVALID_ARGUMENT;
return 0;
}
GRN_IO_SEG_REF(ja->io, *pseg, einfo);
if (!einfo) {
ctx->rc = GRN_NO_MEMORY_AVAILABLE;
return 0;
}
ei = &einfo[pos];
if (ETINY_P(ei)) {
ETINY_DEC(ei, size);
} else {
if (EHUGE_P(ei)) {
size = ei->u.h.size;
} else {
size = (ei->u.n.c2 << 16) + ei->u.n.size;
}
}
GRN_IO_SEG_UNREF(ja->io, *pseg);
return size;
}
grn_rc
grn_ja_element_info(grn_ctx *ctx, grn_ja *ja, grn_id id,
uint64_t *cas, uint32_t *pos, uint32_t *size)
{
uint32_t pseg = ja->header->esegs[id >> JA_W_EINFO_IN_A_SEGMENT];
if (pseg == JA_ESEG_VOID) {
return GRN_INVALID_ARGUMENT;
} else {
grn_ja_einfo *einfo = NULL;
GRN_IO_SEG_REF(ja->io, pseg, einfo);
if (einfo) {
grn_ja_einfo *ei;
*cas = *((uint64_t *)&einfo[id & JA_M_EINFO_IN_A_SEGMENT]);
ei = (grn_ja_einfo *)cas;
if (ETINY_P(ei)) {
ETINY_DEC(ei, *size);
*pos = 0;
} else {
uint32_t jag;
if (EHUGE_P(ei)) {
EHUGE_DEC(ei, jag, *size);
*pos = 0;
} else {
EINFO_DEC(ei, jag, *pos, *size);
}
}
GRN_IO_SEG_UNREF(ja->io, pseg);
} else {
return GRN_INVALID_ARGUMENT;
}
}
return GRN_SUCCESS;
}
#ifndef NO_ZLIB
#include <zlib.h>
static void *
grn_ja_ref_zlib(grn_ctx *ctx, grn_ja *ja, grn_id id, grn_io_win *iw, uint32_t *value_len)
{
z_stream zstream;
void *value, *zvalue;
uint32_t zvalue_len = *value_len + sizeof (uint64_t);
if (!(zvalue = grn_ja_ref_raw(ctx, ja, id, iw, &zvalue_len))) {
*value_len = 0; return NULL;
}
zstream.next_in = (Bytef *)((uint64_t *)zvalue + 1);
zstream.avail_in = zvalue_len - sizeof (uint64_t);
zstream.zalloc = Z_NULL;
zstream.zfree = Z_NULL;
if (inflateInit2(&zstream, 15 /* windowBits */) != Z_OK) {
GRN_FREE((grn_io_ja_ehead *)zvalue - 1);
*value_len = 0;
return NULL;
}
if (!(value = GRN_MALLOC(*(uint64_t *)zvalue + sizeof (grn_io_ja_ehead)))) {
inflateEnd(&zstream);
GRN_FREE((grn_io_ja_ehead *)zvalue - 1);
*value_len = 0;
return NULL;
}
zstream.next_out = (Bytef *)((grn_io_ja_ehead *)value + 1);
zstream.avail_out = *(uint64_t *)zvalue;
if (inflate(&zstream, Z_FINISH) != Z_STREAM_END) {
inflateEnd(&zstream);
GRN_FREE(value);
GRN_FREE((grn_io_ja_ehead *)zvalue - 1);
*value_len = 0;
return NULL;
}
*value_len = zstream.total_out;
if (inflateEnd(&zstream) != Z_OK) {
GRN_FREE(value);
GRN_FREE((grn_io_ja_ehead *)zvalue - 1);