#define X_STACKSIZE 1024 * 128 + sizeof (long) * 64 * 1024 / 4
#include "xthread.h"
#include <errno.h>
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "schmorp.h"
// perl stupidly defines these as argument-less macros, breaking
// lots and lots of code.
#undef open
#undef close
#undef abort
#undef malloc
#undef free
#undef send
#include <stddef.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <limits.h>
#include <fcntl.h>
#ifndef _WIN32
# include <sys/time.h>
# include <unistd.h>
#endif
#include <db.h>
#define DBVER DB_VERSION_MAJOR * 100 + DB_VERSION_MINOR
#if DBVER < 403
# error you need Berkeley DB 4.3 or a newer version installed
#endif
/* number of seconds after which idle threads exit */
#define IDLE_TIMEOUT 10
typedef SV SV_mutable;
typedef DB_ENV DB_ENV_ornull;
typedef DB_TXN DB_TXN_ornull;
typedef DBC DBC_ornull;
typedef DB DB_ornull;
typedef DB_ENV DB_ENV_ornuked;
typedef DB_TXN DB_TXN_ornuked;
typedef DBC DBC_ornuked;
typedef DB DB_ornuked;
#if DBVER >= 403
typedef DB_SEQUENCE DB_SEQUENCE_ornull;
typedef DB_SEQUENCE DB_SEQUENCE_ornuked;
#endif
typedef char *bdb_filename;
static SV *prepare_cb;
static HV
*bdb_stash,
*bdb_env_stash,
*bdb_txn_stash,
*bdb_cursor_stash,
*bdb_db_stash,
*bdb_sequence_stash;
#if DBVER >= 406
# define c_close close
# define c_count count
# define c_del del
# define c_dup dup
# define c_get get
# define c_pget pget
# define c_put put
#endif
static char *
get_bdb_filename (SV *sv)
{
if (!SvOK (sv))
return 0;
#if _WIN32
/* win32 madness + win32 perl absolutely brokenness make for horrible hacks */
{
STRLEN len;
char *src = SvPVbyte (sv, len);
SV *t1 = sv_newmortal ();
SV *t2 = sv_newmortal ();
sv_upgrade (t1, SVt_PV); SvPOK_only (t1); SvGROW (t1, len * 16 + 1);
sv_upgrade (t2, SVt_PV); SvPOK_only (t2); SvGROW (t2, len * 16 + 1);
len = MultiByteToWideChar (CP_ACP, 0, src, len, (WCHAR *)SvPVX (t1), SvLEN (t1) / sizeof (WCHAR));
len = WideCharToMultiByte (CP_UTF8, 0, (WCHAR *)SvPVX (t1), len, SvPVX (t2), SvLEN (t2), 0, 0);
SvPOK_only (t2);
SvPVX (t2)[len] = 0;
SvCUR_set (t2, len);
return SvPVX (t2);
}
#else
return SvPVbyte_nolen (sv);
#endif
}
static void
debug_errcall (const DB_ENV *dbenv, const char *errpfx, const char *msg)
{
printf ("err[%s]\n", msg);
}
static void
debug_msgcall (const DB_ENV *dbenv, const char *msg)
{
printf ("msg[%s]\n", msg);
}
static char *
strdup_ornull (const char *s)
{
return s ? strdup (s) : 0;
}
static void
sv_to_dbt (DBT *dbt, SV *sv)
{
STRLEN len;
char *data = SvPVbyte (sv, len);
dbt->data = malloc (len);
memcpy (dbt->data, data, len);
dbt->size = len;
dbt->flags = DB_DBT_REALLOC;
}
static void
dbt_to_sv (SV *sv, DBT *dbt)
{
if (sv)
{
SvREADONLY_off (sv);
if (dbt->data)
sv_setpvn_mg (sv, dbt->data, dbt->size);
else
sv_setsv_mg (sv, &PL_sv_undef);
SvREFCNT_dec (sv);
}
free (dbt->data);
}
enum {
REQ_QUIT,
REQ_ENV_OPEN, REQ_ENV_CLOSE, REQ_ENV_TXN_CHECKPOINT, REQ_ENV_LOCK_DETECT,
REQ_ENV_MEMP_SYNC, REQ_ENV_MEMP_TRICKLE, REQ_ENV_DBREMOVE, REQ_ENV_DBRENAME,
REQ_ENV_LOG_ARCHIVE,
REQ_DB_OPEN, REQ_DB_CLOSE, REQ_DB_COMPACT, REQ_DB_SYNC, REQ_DB_VERIFY, REQ_DB_UPGRADE,
REQ_DB_PUT, REQ_DB_EXISTS, REQ_DB_GET, REQ_DB_PGET, REQ_DB_DEL, REQ_DB_KEY_RANGE,
REQ_TXN_COMMIT, REQ_TXN_ABORT, REQ_TXN_FINISH,
REQ_C_CLOSE, REQ_C_COUNT, REQ_C_PUT, REQ_C_GET, REQ_C_PGET, REQ_C_DEL,
REQ_SEQ_OPEN, REQ_SEQ_CLOSE, REQ_SEQ_GET, REQ_SEQ_REMOVE,
};
typedef struct bdb_cb
{
struct bdb_cb *volatile next;
SV *callback;
int type, pri, result;
DB_ENV *env;
DB *db;
DB_TXN *txn;
DBC *dbc;
UV uv1;
int int1, int2;
U32 uint1, uint2;
char *buf1, *buf2, *buf3;
SV *sv1, *sv2, *sv3;
DBT dbt1, dbt2, dbt3;
DB_KEY_RANGE key_range;
#if DBVER >= 403
DB_SEQUENCE *seq;
db_seq_t seq_t;
#endif
SV *rsv1, *rsv2; // keep some request objects alive
} bdb_cb;
typedef bdb_cb *bdb_req;
enum {
PRI_MIN = -4,
PRI_MAX = 4,
DEFAULT_PRI = 0,
PRI_BIAS = -PRI_MIN,
NUM_PRI = PRI_MAX + PRI_BIAS + 1,
};
#define AIO_TICKS ((1000000 + 1023) >> 10)
static SV *on_next_submit;
static unsigned int max_poll_time = 0;
static unsigned int max_poll_reqs = 0;
/* calculcate time difference in ~1/AIO_TICKS of a second */
static int tvdiff (struct timeval *tv1, struct timeval *tv2)
{
return (tv2->tv_sec - tv1->tv_sec ) * AIO_TICKS
+ ((tv2->tv_usec - tv1->tv_usec) >> 10);
}
static int next_pri = DEFAULT_PRI + PRI_BIAS;
static unsigned int started, idle, wanted;
/* worker threads management */
static xmutex_t wrklock = X_MUTEX_INIT;
typedef struct worker {
/* locked by wrklock */
struct worker *prev, *next;
xthread_t tid;
/* locked by reslock, reqlock or wrklock */
bdb_req req; /* currently processed request */
void *dbuf;
DIR *dirp;
} worker;
static worker wrk_first = { &wrk_first, &wrk_first, 0 };
static void worker_clear (worker *wrk)
{
}
static void worker_free (worker *wrk)
{
wrk->next->prev = wrk->prev;
wrk->prev->next = wrk->next;
free (wrk);
}
static volatile unsigned int nreqs, nready, npending;
static volatile unsigned int max_idle = 4;
static volatile unsigned int max_outstanding = 0xffffffff;
static s_epipe respipe;
static xmutex_t reslock = X_MUTEX_INIT;
static xmutex_t reqlock = X_MUTEX_INIT;
static xcond_t reqwait = X_COND_INIT;
#if WORDACCESS_UNSAFE
static unsigned int get_nready (void)
{
unsigned int retval;
X_LOCK (reqlock);
retval = nready;
X_UNLOCK (reqlock);
return retval;
}
static unsigned int get_npending (void)
{
unsigned int retval;
X_LOCK (reslock);
retval = npending;
X_UNLOCK (reslock);
return retval;
}
static unsigned int get_nthreads (void)
{
unsigned int retval;
X_LOCK (wrklock);
retval = started;
X_UNLOCK (wrklock);
return retval;
}
#else
# define get_nready() nready
# define get_npending() npending
# define get_nthreads() started
#endif
/*
* a somewhat faster data structure might be nice, but
* with 8 priorities this actually needs <20 insns
* per shift, the most expensive operation.
*/
typedef struct {
bdb_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
int size;
} reqq;
static reqq req_queue;
static reqq res_queue;
int reqq_push (reqq *q, bdb_req req)
{
int pri = req->pri;
req->next = 0;
if (q->qe[pri])
{
q->qe[pri]->next = req;
q->qe[pri] = req;
}
else
q->qe[pri] = q->qs[pri] = req;
return q->size++;
}
bdb_req reqq_shift (reqq *q)
{
int pri;
if (!q->size)
return 0;
--q->size;
for (pri = NUM_PRI; pri--; )
{
bdb_req req = q->qs[pri];
if (req)
{
if (!(q->qs[pri] = req->next))
q->qe[pri] = 0;
return req;
}
}
abort ();
}
static int poll_cb (void);
static void req_free (bdb_req req);
static int req_invoke (bdb_req req)
{
switch (req->type)
{
case REQ_DB_CLOSE:
SvREFCNT_dec (req->sv1);
break;
case REQ_DB_GET:
case REQ_DB_PGET:
case REQ_C_GET:
case REQ_C_PGET:
case REQ_DB_PUT:
case REQ_C_PUT:
dbt_to_sv (req->sv1, &req->dbt1);
dbt_to_sv (req->sv2, &req->dbt2);
dbt_to_sv (req->sv3, &req->dbt3);
break;
case REQ_DB_KEY_RANGE:
{
AV *av = newAV ();
av_push (av, newSVnv (req->key_range.less));
av_push (av, newSVnv (req->key_range.equal));
av_push (av, newSVnv (req->key_range.greater));
av = (AV *)newRV_noinc ((SV *)av);
SvREADONLY_off (req->sv1);
sv_setsv_mg (req->sv1, newRV_noinc ((SV *)av));
SvREFCNT_dec (av);
SvREFCNT_dec (req->sv1);
}
break;
#if DBVER >= 403
case REQ_SEQ_GET:
SvREADONLY_off (req->sv1);
if (sizeof (IV) > 4)
sv_setiv_mg (req->sv1, (IV)req->seq_t);
else
sv_setnv_mg (req->sv1, (NV)req->seq_t);
SvREFCNT_dec (req->sv1);
break;
#endif
case REQ_ENV_LOG_ARCHIVE:
{
AV *av = newAV ();
char **listp = (char **)req->buf1;
if (listp)
while (*listp)
av_push (av, newSVpv (*listp, 0)), ++listp;
av = (AV *)newRV_noinc ((SV *)av);
SvREADONLY_off (req->sv1);
sv_setsv_mg (req->sv1, (SV *)av);
SvREFCNT_dec (av);
SvREFCNT_dec (req->sv1);
}
break;
}
errno = req->result;
if (req->callback)
{
dSP;
ENTER;
SAVETMPS;
PUSHMARK (SP);
PUTBACK;
call_sv (req->callback, G_VOID | G_EVAL);
SPAGAIN;
FREETMPS;
LEAVE;
return !SvTRUE (ERRSV);
}
return 1;
}
static void req_free (bdb_req req)
{
SvREFCNT_dec (req->callback);
SvREFCNT_dec (req->rsv1);
SvREFCNT_dec (req->rsv2);
free (req->buf1);
free (req->buf2);
free (req->buf3);
Safefree (req);
}
static void
create_respipe (void)
{
if (s_epipe_renew (&respipe))
croak ("BDB: unable to create event pipe");
}
static void bdb_request (bdb_req req);
X_THREAD_PROC (bdb_proc);
static void start_thread (void)
{
worker *wrk = calloc (1, sizeof (worker));
if (!wrk)
croak ("unable to allocate worker thread data");
X_LOCK (wrklock);
if (xthread_create (&wrk->tid, bdb_proc, (void *)wrk))
{
wrk->prev = &wrk_first;
wrk->next = wrk_first.next;
wrk_first.next->prev = wrk;
wrk_first.next = wrk;
++started;
}
else
free (wrk);
X_UNLOCK (wrklock);
}
static void maybe_start_thread (void)
{
if (get_nthreads () >= wanted)
return;
/* todo: maybe use idle here, but might be less exact */
if (0 <= (int)get_nthreads () + (int)get_npending () - (int)nreqs)
return;
start_thread ();
}
static void req_send (bdb_req req)
{
SV *wait_callback = 0;
if (on_next_submit)
{
dSP;
SV *cb = sv_2mortal (on_next_submit);
on_next_submit = 0;
PUSHMARK (SP);
PUTBACK;
call_sv (cb, G_DISCARD | G_EVAL);
SPAGAIN;
}
// synthesize callback if none given
if (!req->callback)
{
if (SvOK (prepare_cb))
{
int count;
dSP;
PUSHMARK (SP);
PUTBACK;
count = call_sv (prepare_cb, G_ARRAY);
SPAGAIN;
if (count != 2)
croak ("sync prepare callback must return exactly two values\n");
wait_callback = POPs;
req->callback = SvREFCNT_inc (POPs);
}
else
{
// execute request synchronously
bdb_request (req);
req_invoke (req);
req_free (req);
return;
}
}
++nreqs;
X_LOCK (reqlock);
++nready;
reqq_push (&req_queue, req);
X_COND_SIGNAL (reqwait);
X_UNLOCK (reqlock);
maybe_start_thread ();
if (wait_callback)
{
dSP;
PUSHMARK (SP);
PUTBACK;
call_sv (wait_callback, G_DISCARD);
}
}
static void end_thread (void)
{
bdb_req req = calloc (1, sizeof (bdb_cb));
req->type = REQ_QUIT;
req->pri = PRI_MAX + PRI_BIAS;
X_LOCK (reqlock);
reqq_push (&req_queue, req);
X_COND_SIGNAL (reqwait);
X_UNLOCK (reqlock);
X_LOCK (wrklock);
--started;
X_UNLOCK (wrklock);
}
static void set_max_idle (int nthreads)
{
if (WORDACCESS_UNSAFE) X_LOCK (reqlock);
max_idle = nthreads <= 0 ? 1 : nthreads;
if (WORDACCESS_UNSAFE) X_UNLOCK (reqlock);
}
static void min_parallel (int nthreads)
{
if (wanted < nthreads)
wanted = nthreads;
}
static void max_parallel (int nthreads)
{
if (wanted > nthreads)
wanted = nthreads;
while (started > wanted)
end_thread ();
}
static void poll_wait (void)
{
while (nreqs)
{
int size;
if (WORDACCESS_UNSAFE) X_LOCK (reslock);
size = res_queue.size;
if (WORDACCESS_UNSAFE) X_UNLOCK (reslock);
if (size)
return;
maybe_start_thread ();
s_epipe_wait (&respipe);
}
}
static int poll_cb (void)
{
dSP;
int count = 0;
int maxreqs = max_poll_reqs;
int do_croak = 0;
struct timeval tv_start, tv_now;
bdb_req req;
if (max_poll_time)
gettimeofday (&tv_start, 0);
for (;;)
{
for (;;)
{
maybe_start_thread ();
X_LOCK (reslock);
req = reqq_shift (&res_queue);
if (req)
{
--npending;
if (!res_queue.size)
/* read any signals sent by the worker threads */
s_epipe_drain (&respipe);
}
X_UNLOCK (reslock);
if (!req)
break;
--nreqs;
if (!req_invoke (req))
{
req_free (req);
croak (0);
}
count++;
req_free (req);
if (maxreqs && !--maxreqs)
break;
if (max_poll_time)
{
gettimeofday (&tv_now, 0);
if (tvdiff (&tv_start, &tv_now) >= max_poll_time)
break;
}
}
if (nreqs <= max_outstanding)
break;
poll_wait ();
++maxreqs;
}
return count;
}
/*****************************************************************************/
static void
bdb_request (bdb_req req)
{
switch (req->type)
{
case REQ_ENV_OPEN:
req->result = req->env->open (req->env, req->buf1, req->uint1, req->int1);
break;
case REQ_ENV_CLOSE:
req->result = req->env->close (req->env, req->uint1);
break;
case REQ_ENV_TXN_CHECKPOINT:
req->result = req->env->txn_checkpoint (req->env, req->uint1, req->int1, req->uint2);
break;
case REQ_ENV_LOCK_DETECT:
req->result = req->env->lock_detect (req->env, req->uint1, req->uint2, &req->int1);
break;
case REQ_ENV_MEMP_SYNC:
req->result = req->env->memp_sync (req->env, 0);
break;
case REQ_ENV_MEMP_TRICKLE:
req->result = req->env->memp_trickle (req->env, req->int1, &req->int2);
break;
case REQ_ENV_DBREMOVE:
req->result = req->env->dbremove (req->env, req->txn, req->buf1, req->buf2, req->uint1);
break;
case REQ_ENV_DBRENAME:
req->result = req->env->dbrename (req->env, req->txn, req->buf1, req->buf2, req->buf3, req->uint1);
break;
case REQ_DB_OPEN:
req->result = req->db->open (req->db, req->txn, req->buf1, req->buf2, req->int1, req->uint1, req->int2);
break;
case REQ_DB_CLOSE:
req->result = req->db->close (req->db, req->uint1);
break;
#if DBVER >= 404
case REQ_DB_COMPACT:
req->result = req->db->compact (req->db, req->txn, req->dbt1.data ? &req->dbt1 : 0, req->dbt2.data ? &req->dbt2 : 0, 0, req->uint1, 0);
break;
#endif
case REQ_DB_SYNC:
req->result = req->db->sync (req->db, req->uint1);
break;
case REQ_DB_VERIFY:
req->result = req->db->verify (req->db, req->buf1, req->buf2, 0, req->uint1);
break;
case REQ_DB_UPGRADE:
req->result = req->db->upgrade (req->db, req->buf1, req->uint1);
break;
case REQ_DB_PUT:
req->result = req->db->put (req->db, req->txn, &req->dbt1, &req->dbt2, req->uint1);
break;
#if DBVER >= 406
case REQ_DB_EXISTS:
req->result = req->db->exists (req->db, req->txn, &req->dbt1, req->uint1);
break;
#endif
case REQ_DB_GET:
req->result = req->db->get (req->db, req->txn, &req->dbt1, &req->dbt3, req->uint1);
break;
case REQ_DB_PGET:
req->result = req->db->pget (req->db, req->txn, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
break;
case REQ_DB_DEL:
req->result = req->db->del (req->db, req->txn, &req->dbt1, req->uint1);
break;
case REQ_DB_KEY_RANGE:
req->result = req->db->key_range (req->db, req->txn, &req->dbt1, &req->key_range, req->uint1);
break;
case REQ_TXN_COMMIT:
req->result = req->txn->commit (req->txn, req->uint1);
break;
case REQ_TXN_ABORT:
req->result = req->txn->abort (req->txn);
break;
case REQ_TXN_FINISH:
if (req->txn->flags & TXN_DEADLOCK)
{
req->result = req->txn->abort (req->txn);
if (!req->result)
req->result = DB_LOCK_DEADLOCK;
}
else
req->result = req->txn->commit (req->txn, req->uint1);
break;
case REQ_C_CLOSE:
req->result = req->dbc->c_close (req->dbc);
break;
case REQ_C_COUNT:
{
db_recno_t recno;
req->result = req->dbc->c_count (req->dbc, &recno, req->uint1);
req->uv1 = recno;
}
break;
case REQ_C_PUT:
req->result = req->dbc->c_put (req->dbc, &req->dbt1, &req->dbt2, req->uint1);
break;
case REQ_C_GET:
req->result = req->dbc->c_get (req->dbc, &req->dbt1, &req->dbt3, req->uint1);
break;
case REQ_C_PGET:
req->result = req->dbc->c_pget (req->dbc, &req->dbt1, &req->dbt2, &req->dbt3, req->uint1);
break;
case REQ_C_DEL:
req->result = req->dbc->c_del (req->dbc, req->uint1);
break;
#if DBVER >= 403
case REQ_SEQ_OPEN:
req->result = req->seq->open (req->seq, req->txn, &req->dbt1, req->uint1);
break;
case REQ_SEQ_CLOSE:
req->result = req->seq->close (req->seq, req->uint1);
break;
case REQ_SEQ_GET:
req->result = req->seq->get (req->seq, req->txn, req->int1, &req->seq_t, req->uint1);
break;
case REQ_SEQ_REMOVE:
req->result = req->seq->remove (req->seq, req->txn, req->uint1);
break;
#endif
case REQ_ENV_LOG_ARCHIVE:
{
char **listp = 0; /* DB_ARCH_REMOVE does not touch listp, contrary to docs */
req->result = req->env->log_archive (req->env, &listp, req->uint1);
req->buf1 = (char *)listp;
}
break;
default:
req->result = ENOSYS;
break;
}
if (req->txn && (req->result > 0 || req->result == DB_LOCK_NOTGRANTED))
req->txn->flags |= TXN_DEADLOCK;
}
X_THREAD_PROC (bdb_proc)
{
bdb_req req;
struct timespec ts;
worker *self = (worker *)thr_arg;
/* try to distribute timeouts somewhat evenly */
ts.tv_nsec = ((unsigned long)self & 1023UL) * (1000000000UL / 1024UL);
for (;;)
{
ts.tv_sec = time (0) + IDLE_TIMEOUT;
X_LOCK (reqlock);
for (;;)
{
self->req = req = reqq_shift (&req_queue);
if (req)
break;
++idle;
if (X_COND_TIMEDWAIT (reqwait, reqlock, ts)
== ETIMEDOUT)
{
if (idle > max_idle)
{
--idle;
X_UNLOCK (reqlock);
X_LOCK (wrklock);
--started;
X_UNLOCK (wrklock);
goto quit;
}
/* we are allowed to idle, so do so without any timeout */
X_COND_WAIT (reqwait, reqlock);
ts.tv_sec = time (0) + IDLE_TIMEOUT;
}
--idle;
}
--nready;
X_UNLOCK (reqlock);
if (req->type == REQ_QUIT)
{
X_LOCK (reslock);
free (req);
self->req = 0;
X_UNLOCK (reslock);
goto quit;
}
bdb_request (req);
X_LOCK (reslock);
++npending;
if (!reqq_push (&res_queue, req))
s_epipe_signal (&respipe);
self->req = 0;
worker_clear (self);
X_UNLOCK (reslock);
}
quit:
X_LOCK (wrklock);
worker_free (self);
X_UNLOCK (wrklock);
return 0;
}
/*****************************************************************************/
static void atfork_prepare (void)
{
X_LOCK (wrklock);
X_LOCK (reqlock);
X_LOCK (reslock);
}
static void atfork_parent (void)
{
X_UNLOCK (reslock);
X_UNLOCK (reqlock);
X_UNLOCK (wrklock);
}
static void atfork_child (void)
{
bdb_req prv;
while (prv = reqq_shift (&req_queue))
req_free (prv);
while (prv = reqq_shift (&res_queue))
req_free (prv);
while (wrk_first.next != &wrk_first)
{
worker *wrk = wrk_first.next;
if (wrk->req)
req_free (wrk->req);
worker_clear (wrk);
worker_free (wrk);
}
started = 0;
idle = 0;
nreqs = 0;
nready = 0;
npending = 0;
create_respipe ();
atfork_parent ();
}
#define dREQ(reqtype,rsvcnt) \
bdb_req req; \
int req_pri = next_pri; \
next_pri = DEFAULT_PRI + PRI_BIAS; \
\
if (callback && SvOK (callback)) \
croak ("callback has illegal type or extra arguments"); \
\
Newz (0, req, 1, bdb_cb); \
if (!req) \
croak ("out of memory during bdb_req allocation"); \
\
req->callback = SvREFCNT_inc (cb); \
req->type = (reqtype); \
req->pri = req_pri; \
if (rsvcnt >= 1) req->rsv1 = SvREFCNT_inc (ST (0)); \
if (rsvcnt >= 2) req->rsv2 = SvREFCNT_inc (ST (1)); \
(void)0;
#define REQ_SEND \
req_send (req)
#define SvPTR(var, arg, type, stash, class, nullok) \
if (!SvOK (arg)) \
{ \
if (nullok != 1) \
croak (# var " must be a " # class " object, not undef"); \
\
(var) = 0; \
} \
else if (SvSTASH (SvRV (arg)) == stash || sv_derived_from ((arg), # class)) \
{ \
IV tmp = SvIV ((SV*) SvRV (arg)); \
(var) = INT2PTR (type, tmp); \
if (!var && nullok != 2) \
croak (# var " is not a valid " # class " object anymore"); \
} \
else \
croak (# var " is not of type " # class);
#define ARG_MUTABLE(name) \
if (SvREADONLY (name)) \
croak ("argument " #name " is read-only/constant, but the request requires it to be mutable");
static SV *
newSVptr (void *ptr, HV *stash)
{
SV *rv = NEWSV (0, 0);
sv_upgrade (rv, SVt_PVMG);
sv_setiv (rv, PTR2IV (ptr));
return sv_bless (newRV_noinc (rv), stash);
}
static void
ptr_nuke (SV *sv)
{
assert (SvROK (sv));
sv_setiv (SvRV (sv), 0);
}
static int
errno_get (pTHX_ SV *sv, MAGIC *mg)
{
if (*mg->mg_ptr == '!') // should always be the case
if (-30999 <= errno && errno <= -30800)
{
sv_setnv (sv, (NV)errno);
sv_setpv (sv, db_strerror (errno));
SvNOK_on (sv); /* what a wonderful hack! */
// ^^^ copied from perl sources
return 0;
}
return PL_vtbl_sv.svt_get (aTHX_ sv, mg);
}
static MGVTBL vtbl_errno;
// this wonderful hack :( patches perl's $! variable to support our errno values
static void
patch_errno (void)
{
SV *sv;
MAGIC *mg;
if (!(sv = get_sv ("!", 1)))
return;
if (!(mg = mg_find (sv, PERL_MAGIC_sv)))
return;
if (mg->mg_virtual != &PL_vtbl_sv)
return;
vtbl_errno = PL_vtbl_sv;
vtbl_errno.svt_get = errno_get;
mg->mg_virtual = &vtbl_errno;
}
#if __GNUC__ >= 4
# define noinline __attribute__ ((noinline))
#else
# define noinline
#endif
static noinline SV *
pop_callback (I32 *ritems, SV *sv)
{
if (SvROK (sv))
{
HV *st;
GV *gvp;
CV *cv;
const char *name;
/* forgive me */
if (SvTYPE (SvRV (sv)) == SVt_PVMG
&& (st = SvSTASH (SvRV (sv)))
&& (name = HvNAME_get (st))
&& (name [0] == 'B' && name [1] == 'D' && name [2] == 'B' && name [3] == ':'))
return 0;
if ((cv = sv_2cv (sv, &st, &gvp, 0)))
{
--*ritems;
return (SV *)cv;
}
}
return 0;
}
/*****************************************************************************/
#if 0
static int
bt_pfxc_compare (DB *db, const DBT *dbt1, const DBT *dbt2)
{
ssize_t size1 = dbt1->size;
ssize_t size2 = dbt2->size;
int res = memcmp ((void *)dbt1->data, (void *)dbt2->data,
size1 <= size2 ? size1 : size2);
if (res)
return res;
else if (size1 - size2)
return size1 - size2;
else
return 0;
}
static size_t
bt_pfxc_prefix_x (DB *db, const DBT *dbt1, const DBT *dbt2)
{
ssize_t size1 = dbt1->size;
ssize_t size2 = dbt2->size;
u_int8_t *p1 = (u_int8_t *)dbt1->data;
u_int8_t *p2 = (u_int8_t *)dbt2->data;
u_int8_t *pe = p1 + (size1 <= size2 ? size1 : size2);
while (p1 < pe)
if (*p1++ != *p2++)
return p1 - (u_int8_t *)dbt1->data - 1;
if (size1 < size2) return size1 + 1;
if (size1 > size2) return size2 + 1;
return size1;
}
#endif
/*****************************************************************************/
/* stupid windows defines CALLBACK as well */
#undef CALLBACK
#define CALLBACK SV *cb = pop_callback (&items, ST (items - 1));
MODULE = BDB PACKAGE = BDB
PROTOTYPES: ENABLE
BOOT:
{
static const struct {
const char *name;
IV iv;
} *civ, const_iv[] = {
#define const_iv(name) { # name, (IV)DB_ ## name },
#if DBVER <= 408
const_iv (RPCCLIENT)
#endif
const_iv (INIT_CDB)
const_iv (INIT_LOCK)
const_iv (INIT_LOG)
const_iv (INIT_MPOOL)
const_iv (INIT_REP)
const_iv (INIT_TXN)
const_iv (RECOVER)
const_iv (INIT_TXN)
const_iv (RECOVER_FATAL)
const_iv (CREATE)
const_iv (RDONLY)
const_iv (USE_ENVIRON)
const_iv (USE_ENVIRON_ROOT)
const_iv (LOCKDOWN)
const_iv (PRIVATE)
const_iv (SYSTEM_MEM)
const_iv (AUTO_COMMIT)
const_iv (CDB_ALLDB)
const_iv (DIRECT_DB)
const_iv (NOLOCKING)
const_iv (NOMMAP)
const_iv (NOPANIC)
const_iv (OVERWRITE)
const_iv (PANIC_ENVIRONMENT)
const_iv (REGION_INIT)
const_iv (TIME_NOTGRANTED)
const_iv (TXN_NOSYNC)
const_iv (TXN_NOT_DURABLE)
const_iv (TXN_WRITE_NOSYNC)
const_iv (WRITECURSOR)
const_iv (YIELDCPU)
const_iv (ENCRYPT_AES)
#if DBVER < 408
const_iv (XA_CREATE)
#endif
const_iv (BTREE)
const_iv (HASH)
const_iv (QUEUE)
const_iv (RECNO)
const_iv (UNKNOWN)
const_iv (EXCL)
const_iv (TRUNCATE)
const_iv (NOSYNC)
const_iv (CHKSUM)
const_iv (ENCRYPT)
const_iv (DUP)
const_iv (DUPSORT)
//const_iv (RECNUM)
const_iv (RENUMBER)
const_iv (REVSPLITOFF)
const_iv (CONSUME)
const_iv (CONSUME_WAIT)
const_iv (GET_BOTH)
const_iv (GET_BOTH_RANGE)
//const_iv (SET_RECNO)
//const_iv (MULTIPLE)
const_iv (SNAPSHOT)
const_iv (JOIN_ITEM)
const_iv (JOIN_NOSORT)
const_iv (RMW)
const_iv (NOTFOUND)
const_iv (KEYEMPTY)
const_iv (LOCK_DEADLOCK)
const_iv (LOCK_NOTGRANTED)
const_iv (RUNRECOVERY)
const_iv (OLD_VERSION)
const_iv (REP_HANDLE_DEAD)
const_iv (SECONDARY_BAD)
const_iv (APPEND)
const_iv (NODUPDATA)
const_iv (NOOVERWRITE)
const_iv (TXN_NOWAIT)
const_iv (TXN_SYNC)
const_iv (SET_LOCK_TIMEOUT)
const_iv (SET_TXN_TIMEOUT)
const_iv (FIRST)
const_iv (NEXT)
const_iv (NEXT_DUP)
const_iv (NEXT_NODUP)
const_iv (PREV)
const_iv (PREV_NODUP)
const_iv (SET)
const_iv (SET_RANGE)
const_iv (LAST)
const_iv (BEFORE)
const_iv (AFTER)
const_iv (CURRENT)
const_iv (KEYFIRST)
const_iv (KEYLAST)
const_iv (NODUPDATA)
const_iv (FORCE)
const_iv (LOCK_DEFAULT)
const_iv (LOCK_EXPIRE)
const_iv (LOCK_MAXLOCKS)
const_iv (LOCK_MINLOCKS)
const_iv (LOCK_MINWRITE)
const_iv (LOCK_OLDEST)
const_iv (LOCK_RANDOM)
const_iv (LOCK_YOUNGEST)
const_iv (DONOTINDEX)
const_iv (KEYEMPTY)
const_iv (KEYEXIST)
const_iv (LOCK_DEADLOCK)
const_iv (LOCK_NOTGRANTED)
const_iv (NOSERVER)
#if DBVER < 502
const_iv (NOSERVER_HOME)
const_iv (NOSERVER_ID)
#endif
const_iv (NOTFOUND)
const_iv (PAGE_NOTFOUND)
const_iv (REP_DUPMASTER)
const_iv (REP_HANDLE_DEAD)
const_iv (REP_HOLDELECTION)
const_iv (REP_ISPERM)
const_iv (REP_NEWMASTER)
const_iv (REP_NEWSITE)
const_iv (REP_NOTPERM)
const_iv (REP_UNAVAIL)
const_iv (RUNRECOVERY)
const_iv (SECONDARY_BAD)
const_iv (VERIFY_BAD)
const_iv (SALVAGE)
const_iv (AGGRESSIVE)
const_iv (PRINTABLE)
const_iv (NOORDERCHK)
const_iv (ORDERCHKONLY)
const_iv (ARCH_ABS)
const_iv (ARCH_DATA)
const_iv (ARCH_LOG)
const_iv (ARCH_REMOVE)
const_iv (VERB_DEADLOCK)
const_iv (VERB_RECOVERY)
const_iv (VERB_REPLICATION)
const_iv (VERB_WAITSFOR)
const_iv (VERSION_MAJOR)
const_iv (VERSION_MINOR)
const_iv (VERSION_PATCH)
const_iv (LOGVERSION)
const_iv (LOGOLDVER)
#if DBVER >= 403
const_iv (INORDER)
const_iv (LOCK_MAXWRITE)
const_iv (SEQ_DEC)
const_iv (SEQ_INC)
const_iv (SEQ_WRAP)
const_iv (BUFFER_SMALL)
const_iv (LOG_BUFFER_FULL)
const_iv (VERSION_MISMATCH)
#endif
#if DBVER >= 404
const_iv (REGISTER)
const_iv (DSYNC_DB)
const_iv (READ_COMMITTED)
const_iv (READ_UNCOMMITTED)
const_iv (REP_IGNORE)
const_iv (REP_LOCKOUT)
const_iv (REP_JOIN_FAILURE)
const_iv (FREE_SPACE)
const_iv (FREELIST_ONLY)
const_iv (VERB_REGISTER)
#endif
#if DBVER >= 405
const_iv (MULTIVERSION)
const_iv (TXN_SNAPSHOT)
#endif
#if DBVER >= 406
const_iv (PREV_DUP)
const_iv (PRIORITY_UNCHANGED)
const_iv (PRIORITY_VERY_LOW)
const_iv (PRIORITY_LOW)
const_iv (PRIORITY_DEFAULT)
const_iv (PRIORITY_HIGH)
const_iv (PRIORITY_VERY_HIGH)
const_iv (IGNORE_LEASE)
#endif
#if DBVER >= 407
//const_iv (MULTIPLE_KEY)
const_iv (LOG_DIRECT)
const_iv (LOG_DSYNC)
const_iv (LOG_AUTO_REMOVE)
const_iv (LOG_IN_MEMORY)
const_iv (LOG_ZERO)
#else
const_iv (DIRECT_LOG)
const_iv (LOG_AUTOREMOVE)
# if DBVER >= 403
const_iv (DSYNC_LOG)
const_iv (LOG_INMEMORY)
# endif
#if DBVER >= 408
const_iv (LOGVERSION_LATCHING)
#endif
#endif
};
bdb_stash = gv_stashpv ("BDB" , 1);
bdb_env_stash = gv_stashpv ("BDB::Env" , 1);
bdb_txn_stash = gv_stashpv ("BDB::Txn" , 1);
bdb_cursor_stash = gv_stashpv ("BDB::Cursor" , 1);
bdb_db_stash = gv_stashpv ("BDB::Db" , 1);
bdb_sequence_stash = gv_stashpv ("BDB::Sequence", 1);
for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
newCONSTSUB (bdb_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
prepare_cb = &PL_sv_undef;
{
/* we currently only allow version, minor-version and patchlevel to go up to 255 */
char vstring[3] = { DB_VERSION_MAJOR, DB_VERSION_MINOR, DB_VERSION_PATCH };
newCONSTSUB (bdb_stash, "VERSION_v", newSVpvn (vstring, 3));
}
newCONSTSUB (bdb_stash, "VERSION_STRING", newSVpv (DB_VERSION_STRING, 0));
create_respipe ();
X_THREAD_ATFORK (atfork_prepare, atfork_parent, atfork_child);
patch_errno ();
}
void
max_poll_reqs (int nreqs)
PROTOTYPE: $
CODE:
max_poll_reqs = nreqs;
void
max_poll_time (double nseconds)
PROTOTYPE: $
CODE:
max_poll_time = nseconds * AIO_TICKS;
void
min_parallel (int nthreads)
PROTOTYPE: $
void
max_parallel (int nthreads)
PROTOTYPE: $
void
max_idle (int nthreads)
PROTOTYPE: $
CODE:
set_max_idle (nthreads);
int
max_outstanding (int maxreqs)
PROTOTYPE: $
CODE:
RETVAL = max_outstanding;
max_outstanding = maxreqs;
OUTPUT:
RETVAL
int
dbreq_pri (int pri = 0)
PROTOTYPE: ;$
CODE:
RETVAL = next_pri - PRI_BIAS;
if (items > 0)
{
if (pri < PRI_MIN) pri = PRI_MIN;
if (pri > PRI_MAX) pri = PRI_MAX;
next_pri = pri + PRI_BIAS;
}
OUTPUT:
RETVAL
void
dbreq_nice (int nice = 0)
CODE:
nice = next_pri - nice;
if (nice < PRI_MIN) nice = PRI_MIN;
if (nice > PRI_MAX) nice = PRI_MAX;
next_pri = nice + PRI_BIAS;
void
flush ()
PROTOTYPE:
CODE:
while (nreqs)
{
poll_wait ();
poll_cb ();
}
int
poll ()
PROTOTYPE:
CODE:
poll_wait ();
RETVAL = poll_cb ();
OUTPUT:
RETVAL
int
poll_fileno ()
PROTOTYPE:
CODE:
RETVAL = s_epipe_fd (&respipe);
OUTPUT:
RETVAL
int
poll_cb (...)
PROTOTYPE:
CODE:
RETVAL = poll_cb ();
OUTPUT:
RETVAL
void
poll_wait ()
PROTOTYPE:
CODE:
poll_wait ();
int
nreqs ()
PROTOTYPE:
CODE:
RETVAL = nreqs;
OUTPUT:
RETVAL
int
nready ()
PROTOTYPE:
CODE:
RETVAL = get_nready ();
OUTPUT:
RETVAL
int
npending ()
PROTOTYPE:
CODE:
RETVAL = get_npending ();
OUTPUT:
RETVAL
int
nthreads ()
PROTOTYPE:
CODE:
if (WORDACCESS_UNSAFE) X_LOCK (wrklock);
RETVAL = started;
if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
OUTPUT:
RETVAL
SV *
set_sync_prepare (SV *cb)
PROTOTYPE: &
CODE:
RETVAL = prepare_cb;
prepare_cb = newSVsv (cb);
OUTPUT:
RETVAL
char *
strerror (int errorno = errno)
PROTOTYPE: ;$
CODE:
RETVAL = db_strerror (errorno);
OUTPUT:
RETVAL
void _on_next_submit (SV *cb)
CODE:
SvREFCNT_dec (on_next_submit);
on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
DB_ENV *
db_env_create (U32 env_flags = 0)
CODE:
{
errno = db_env_create (&RETVAL, env_flags);
if (errno)
croak ("db_env_create: %s", db_strerror (errno));
if (0)
{
RETVAL->set_errcall (RETVAL, debug_errcall);
RETVAL->set_msgcall (RETVAL, debug_msgcall);
}
}
OUTPUT:
RETVAL
void
db_env_open (DB_ENV *env, bdb_filename db_home, U32 open_flags, int mode, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_OPEN, 1);
req->env = env;
req->uint1 = open_flags | DB_THREAD;
req->int1 = mode;
req->buf1 = strdup_ornull (db_home);
REQ_SEND;
}
void
db_env_close (DB_ENV *env, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_CLOSE, 0);
ptr_nuke (ST (0));
req->env = env;
req->uint1 = flags;
REQ_SEND;
}
void
db_env_txn_checkpoint (DB_ENV *env, U32 kbyte = 0, U32 min = 0, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_TXN_CHECKPOINT, 1);
req->env = env;
req->uint1 = kbyte;
req->int1 = min;
req->uint2 = flags;
REQ_SEND;
}
void
db_env_lock_detect (DB_ENV *env, U32 flags = 0, U32 atype = DB_LOCK_DEFAULT, SV *dummy = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_LOCK_DETECT, 1);
req->env = env;
req->uint1 = flags;
req->uint2 = atype;
/* req->int2 = 0; dummy */
REQ_SEND;
}
void
db_env_memp_sync (DB_ENV *env, SV *dummy = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_MEMP_SYNC, 1);
req->env = env;
REQ_SEND;
}
void
db_env_memp_trickle (DB_ENV *env, int percent, SV *dummy = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_MEMP_TRICKLE, 1);
req->env = env;
req->int1 = percent;
REQ_SEND;
}
void
db_env_dbremove (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_DBREMOVE, 2);
req->env = env;
req->buf1 = strdup_ornull (file);
req->buf2 = strdup_ornull (database);
req->uint1 = flags;
REQ_SEND;
}
void
db_env_dbrename (DB_ENV *env, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, bdb_filename newname, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_DBRENAME, 2);
req->env = env;
req->buf1 = strdup_ornull (file);
req->buf2 = strdup_ornull (database);
req->buf3 = strdup_ornull (newname);
req->uint1 = flags;
REQ_SEND;
}
void
db_env_log_archive (DB_ENV *env, SV_mutable *listp, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_ENV_LOG_ARCHIVE, 1);
req->sv1 = SvREFCNT_inc (listp);
req->env = env;
req->uint1 = flags;
REQ_SEND;
}
DB *
db_create (DB_ENV *env = 0, U32 flags = 0)
CODE:
{
errno = db_create (&RETVAL, env, flags);
if (errno)
croak ("db_create: %s", db_strerror (errno));
if (RETVAL)
RETVAL->app_private = (void *)newSVsv (ST (0));
}
OUTPUT:
RETVAL
void
db_open (DB *db, DB_TXN_ornull *txnid, bdb_filename file, bdb_filename database, int type, U32 flags, int mode, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_OPEN, 2);
req->db = db;
req->txn = txnid;
req->buf1 = strdup_ornull (file);
req->buf2 = strdup_ornull (database);
req->int1 = type;
req->uint1 = flags | DB_THREAD;
req->int2 = mode;
REQ_SEND;
}
void
db_close (DB *db, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_CLOSE, 0);
ptr_nuke (ST (0));
req->db = db;
req->uint1 = flags;
req->sv1 = (SV *)db->app_private;
REQ_SEND;
}
#if DBVER >= 404
void
db_compact (DB *db, DB_TXN_ornull *txn = 0, SV *start = 0, SV *stop = 0, SV *unused1 = 0, U32 flags = DB_FREE_SPACE, SV *unused2 = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_COMPACT, 2);
req->db = db;
req->txn = txn;
if (start) sv_to_dbt (&req->dbt1, start);
if (stop ) sv_to_dbt (&req->dbt2, stop );
req->uint1 = flags;
REQ_SEND;
}
#endif
void
db_sync (DB *db, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_SYNC, 1);
req->db = db;
req->uint1 = flags;
REQ_SEND;
}
void
db_verify (DB *db, bdb_filename file, bdb_filename database = 0, SV *dummy = 0, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_VERIFY, 1);
ptr_nuke (ST (0)); /* verify destroys the database handle, hopefully it is freed as well */
req->db = db;
req->buf1 = strdup (file);
req->buf2 = strdup_ornull (database);
req->uint1 = flags;
REQ_SEND;
}
void
db_upgrade (DB *db, bdb_filename file, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_UPGRADE, 1);
req->db = db;
req->buf1 = strdup (file);
req->uint1 = flags;
REQ_SEND;
}
void
db_key_range (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *key_range, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_KEY_RANGE, 2);
req->db = db;
req->txn = txn;
sv_to_dbt (&req->dbt1, key);
req->uint1 = flags;
req->sv1 = SvREFCNT_inc (key_range); SvREADONLY_on (key_range);
REQ_SEND;
}
void
db_put (DB *db, DB_TXN_ornull *txn, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_PUT, 2);
req->db = db;
req->txn = txn;
sv_to_dbt (&req->dbt1, key);
sv_to_dbt (&req->dbt2, data);
req->uint1 = flags;
REQ_SEND;
}
#if DBVER >= 406
void
db_exists (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_EXISTS, 2);
req->db = db;
req->txn = txn;
req->uint1 = flags;
sv_to_dbt (&req->dbt1, key);
REQ_SEND;
}
#endif
void
db_get (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
//TODO: key is somtimesmutable
dREQ (REQ_DB_GET, 2);
req->db = db;
req->txn = txn;
req->uint1 = flags;
sv_to_dbt (&req->dbt1, key);
req->dbt3.flags = DB_DBT_MALLOC;
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
REQ_SEND;
}
void
db_pget (DB *db, DB_TXN_ornull *txn, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
//TODO: key is somtimesmutable
dREQ (REQ_DB_PGET, 2);
req->db = db;
req->txn = txn;
req->uint1 = flags;
sv_to_dbt (&req->dbt1, key);
req->dbt2.flags = DB_DBT_MALLOC;
req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
req->dbt3.flags = DB_DBT_MALLOC;
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
REQ_SEND;
}
void
db_del (DB *db, DB_TXN_ornull *txn, SV *key, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_DB_DEL, 2);
req->db = db;
req->txn = txn;
req->uint1 = flags;
sv_to_dbt (&req->dbt1, key);
REQ_SEND;
}
void
db_txn_commit (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_TXN_COMMIT, 0);
ptr_nuke (ST (0));
req->txn = txn;
req->uint1 = flags;
REQ_SEND;
}
void
db_txn_abort (DB_TXN *txn, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_TXN_ABORT, 0);
ptr_nuke (ST (0));
req->txn = txn;
REQ_SEND;
}
void
db_txn_finish (DB_TXN *txn, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_TXN_FINISH, 0);
ptr_nuke (ST (0));
req->txn = txn;
req->uint1 = flags;
REQ_SEND;
}
void
db_c_close (DBC *dbc, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_C_CLOSE, 0);
ptr_nuke (ST (0));
req->dbc = dbc;
REQ_SEND;
}
void
db_c_count (DBC *dbc, SV *count, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_C_COUNT, 1);
req->dbc = dbc;
req->sv1 = SvREFCNT_inc (count);
REQ_SEND;
}
void
db_c_put (DBC *dbc, SV *key, SV *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_C_PUT, 1);
req->dbc = dbc;
sv_to_dbt (&req->dbt1, key);
sv_to_dbt (&req->dbt2, data);
req->uint1 = flags;
REQ_SEND;
}
void
db_c_get (DBC *dbc, SV *key, SV_mutable *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
croak ("db_c_get was passed a read-only/constant 'key' argument but operation is not DB_SET");
if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
croak ("argument \"%s\" must be byte/octet-encoded in %s",
"key",
"BDB::db_c_get");
{
dREQ (REQ_C_GET, 1);
req->dbc = dbc;
req->uint1 = flags;
if ((flags & DB_OPFLAGS_MASK) == DB_SET)
sv_to_dbt (&req->dbt1, key);
else
{
if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
sv_to_dbt (&req->dbt1, key);
else
req->dbt1.flags = DB_DBT_MALLOC;
req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
}
if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
sv_to_dbt (&req->dbt3, data);
else
req->dbt3.flags = DB_DBT_MALLOC;
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
REQ_SEND;
}
}
void
db_c_pget (DBC *dbc, SV *key, SV_mutable *pkey, SV_mutable *data, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
if ((flags & DB_OPFLAGS_MASK) != DB_SET && SvREADONLY (key))
croak ("db_c_pget was passed a read-only/constant 'key' argument but operation is not DB_SET");
if (SvPOKp (key) && !sv_utf8_downgrade (key, 1))
croak ("argument \"%s\" must be byte/octet-encoded in %s",
"key",
"BDB::db_c_pget");
{
dREQ (REQ_C_PGET, 1);
req->dbc = dbc;
req->uint1 = flags;
if ((flags & DB_OPFLAGS_MASK) == DB_SET)
sv_to_dbt (&req->dbt1, key);
else
{
if ((flags & DB_OPFLAGS_MASK) == DB_SET_RANGE)
sv_to_dbt (&req->dbt1, key);
else
req->dbt1.flags = DB_DBT_MALLOC;
req->sv1 = SvREFCNT_inc (key); SvREADONLY_on (key);
}
req->dbt2.flags = DB_DBT_MALLOC;
req->sv2 = SvREFCNT_inc (pkey); SvREADONLY_on (pkey);
if ((flags & DB_OPFLAGS_MASK) == DB_GET_BOTH
|| (flags & DB_OPFLAGS_MASK) == DB_GET_BOTH_RANGE)
sv_to_dbt (&req->dbt3, data);
else
req->dbt3.flags = DB_DBT_MALLOC;
req->sv3 = SvREFCNT_inc (data); SvREADONLY_on (data);
REQ_SEND;
}
}
void
db_c_del (DBC *dbc, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_C_DEL, 1);
req->dbc = dbc;
req->uint1 = flags;
REQ_SEND;
}
#if DBVER >= 403
void
db_sequence_open (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, SV *key, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_SEQ_OPEN, 2);
req->seq = seq;
req->txn = txnid;
req->uint1 = flags | DB_THREAD;
sv_to_dbt (&req->dbt1, key);
REQ_SEND;
}
void
db_sequence_close (DB_SEQUENCE *seq, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_SEQ_CLOSE, 0);
ptr_nuke (ST (0));
req->seq = seq;
req->uint1 = flags;
REQ_SEND;
}
void
db_sequence_get (DB_SEQUENCE *seq, DB_TXN_ornull *txnid, int delta, SV_mutable *seq_value, U32 flags = DB_TXN_NOSYNC, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_SEQ_GET, 2);
req->seq = seq;
req->txn = txnid;
req->int1 = delta;
req->uint1 = flags;
req->sv1 = SvREFCNT_inc (seq_value); SvREADONLY_on (seq_value);
REQ_SEND;
}
void
db_sequence_remove (DB_SEQUENCE *seq, DB_TXN_ornull *txnid = 0, U32 flags = 0, SV *callback = 0)
PREINIT:
CALLBACK
CODE:
{
dREQ (REQ_SEQ_REMOVE, 2);
req->seq = seq;
req->txn = txnid;
req->uint1 = flags;
REQ_SEND;
}
#endif
MODULE = BDB PACKAGE = BDB::Env
void
DESTROY (DB_ENV_ornuked *env)
CODE:
if (env)
env->close (env, 0);
int set_data_dir (DB_ENV *env, const char *dir)
CODE:
RETVAL = env->set_data_dir (env, dir);
OUTPUT:
RETVAL
int set_tmp_dir (DB_ENV *env, const char *dir)
CODE:
RETVAL = env->set_tmp_dir (env, dir);
OUTPUT:
RETVAL
int set_lg_dir (DB_ENV *env, const char *dir)
CODE:
RETVAL = env->set_lg_dir (env, dir);
OUTPUT:
RETVAL
int set_shm_key (DB_ENV *env, long shm_key)
CODE:
RETVAL = env->set_shm_key (env, shm_key);
OUTPUT:
RETVAL
int set_cachesize (DB_ENV *env, U32 gbytes, U32 bytes, int ncache = 0)
CODE:
RETVAL = env->set_cachesize (env, gbytes, bytes, ncache);
OUTPUT:
RETVAL
int set_flags (DB_ENV *env, U32 flags, int onoff = 1)
CODE:
RETVAL = env->set_flags (env, flags, onoff);
OUTPUT:
RETVAL
#if DBVER >= 407
int set_intermediate_dir_mode (DB_ENV *env, const char *mode)
CODE:
RETVAL = env->set_intermediate_dir_mode (env, mode);
OUTPUT:
RETVAL
int log_set_config (DB_ENV *env, U32 flags, int onoff = 1)
CODE:
RETVAL = env->log_set_config (env, flags, onoff);
OUTPUT:
RETVAL
#endif
void set_errfile (DB_ENV *env, FILE *errfile = 0)
CODE:
env->set_errfile (env, errfile);
void set_msgfile (DB_ENV *env, FILE *msgfile = 0)
CODE:
env->set_msgfile (env, msgfile);
int set_verbose (DB_ENV *env, U32 which = -1, int onoff = 1)
CODE:
RETVAL = env->set_verbose (env, which, onoff);
OUTPUT:
RETVAL
int set_encrypt (DB_ENV *env, const char *password, U32 flags = 0)
CODE:
RETVAL = env->set_encrypt (env, password, flags);
OUTPUT:
RETVAL
int set_timeout (DB_ENV *env, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
CODE:
RETVAL = env->set_timeout (env, timeout * 1000000, flags);
OUTPUT:
RETVAL
int set_mp_max_openfd (DB_ENV *env, int maxopenfd);
CODE:
RETVAL = env->set_mp_max_openfd (env, maxopenfd);
OUTPUT:
RETVAL
int set_mp_max_write (DB_ENV *env, int maxwrite, int maxwrite_sleep);
CODE:
RETVAL = env->set_mp_max_write (env, maxwrite, maxwrite_sleep);
OUTPUT:
RETVAL
int set_mp_mmapsize (DB_ENV *env, int mmapsize_mb)
CODE:
RETVAL = env->set_mp_mmapsize (env, ((size_t)mmapsize_mb) << 20);
OUTPUT:
RETVAL
int set_lk_detect (DB_ENV *env, U32 detect = DB_LOCK_DEFAULT)
CODE:
RETVAL = env->set_lk_detect (env, detect);
OUTPUT:
RETVAL
int set_lk_max_lockers (DB_ENV *env, U32 max)
CODE:
RETVAL = env->set_lk_max_lockers (env, max);
OUTPUT:
RETVAL
int set_lk_max_locks (DB_ENV *env, U32 max)
CODE:
RETVAL = env->set_lk_max_locks (env, max);
OUTPUT:
RETVAL
int set_lk_max_objects (DB_ENV *env, U32 max)
CODE:
RETVAL = env->set_lk_max_objects (env, max);
OUTPUT:
RETVAL
int set_lg_bsize (DB_ENV *env, U32 max)
CODE:
RETVAL = env->set_lg_bsize (env, max);
OUTPUT:
RETVAL
int set_lg_max (DB_ENV *env, U32 max)
CODE:
RETVAL = env->set_lg_max (env, max);
OUTPUT:
RETVAL
#if DBVER >= 404
int mutex_set_max (DB_ENV *env, U32 max)
CODE:
RETVAL = env->mutex_set_max (env, max);
OUTPUT:
RETVAL
int mutex_set_increment (DB_ENV *env, U32 increment)
CODE:
RETVAL = env->mutex_set_increment (env, increment);
OUTPUT:
RETVAL
int mutex_set_tas_spins (DB_ENV *env, U32 tas_spins)
CODE:
RETVAL = env->mutex_set_tas_spins (env, tas_spins);
OUTPUT:
RETVAL
int mutex_set_align (DB_ENV *env, U32 align)
CODE:
RETVAL = env->mutex_set_align (env, align);
OUTPUT:
RETVAL
#endif
DB_TXN *
txn_begin (DB_ENV *env, DB_TXN_ornull *parent = 0, U32 flags = 0)
CODE:
errno = env->txn_begin (env, parent, &RETVAL, flags);
if (errno)
croak ("DB_ENV->txn_begin: %s", db_strerror (errno));
OUTPUT:
RETVAL
#if DBVER >= 405
DB_TXN *
cdsgroup_begin (DB_ENV *env)
CODE:
errno = env->cdsgroup_begin (env, &RETVAL);
if (errno)
croak ("DB_ENV->cdsgroup_begin: %s", db_strerror (errno));
OUTPUT:
RETVAL
#endif
MODULE = BDB PACKAGE = BDB::Db
void
DESTROY (DB_ornuked *db)
CODE:
if (db)
{
SV *env = (SV *)db->app_private;
db->close (db, 0);
SvREFCNT_dec (env);
}
int set_cachesize (DB *db, U32 gbytes, U32 bytes, int ncache = 0)
CODE:
RETVAL = db->set_cachesize (db, gbytes, bytes, ncache);
OUTPUT:
RETVAL
int set_pagesize (DB *db, U32 pagesize)
CODE:
RETVAL = db->set_pagesize (db, pagesize);
OUTPUT:
RETVAL
int set_flags (DB *db, U32 flags)
CODE:
RETVAL = db->set_flags (db, flags);
OUTPUT:
RETVAL
int set_encrypt (DB *db, const char *password, U32 flags)
CODE:
RETVAL = db->set_encrypt (db, password, flags);
OUTPUT:
RETVAL
int set_lorder (DB *db, int lorder)
CODE:
RETVAL = db->set_lorder (db, lorder);
OUTPUT:
RETVAL
int set_bt_minkey (DB *db, U32 minkey)
CODE:
RETVAL = db->set_bt_minkey (db, minkey);
OUTPUT:
RETVAL
int set_re_delim (DB *db, int delim)
CODE:
RETVAL = db->set_re_delim (db, delim);
OUTPUT:
RETVAL
int set_re_pad (DB *db, int re_pad)
CODE:
RETVAL = db->set_re_pad (db, re_pad);
OUTPUT:
RETVAL
int set_re_source (DB *db, char *source)
CODE:
RETVAL = db->set_re_source (db, source);
OUTPUT:
RETVAL
int set_re_len (DB *db, U32 re_len)
CODE:
RETVAL = db->set_re_len (db, re_len);
OUTPUT:
RETVAL
int set_h_ffactor (DB *db, U32 h_ffactor)
CODE:
RETVAL = db->set_h_ffactor (db, h_ffactor);
OUTPUT:
RETVAL
int set_h_nelem (DB *db, U32 h_nelem)
CODE:
RETVAL = db->set_h_nelem (db, h_nelem);
OUTPUT:
RETVAL
int set_q_extentsize (DB *db, U32 extentsize)
CODE:
RETVAL = db->set_q_extentsize (db, extentsize);
OUTPUT:
RETVAL
DBC *
cursor (DB *db, DB_TXN_ornull *txn = 0, U32 flags = 0)
CODE:
errno = db->cursor (db, txn, &RETVAL, flags);
if (errno)
croak ("DB->cursor: %s", db_strerror (errno));
OUTPUT:
RETVAL
#if DBVER >= 403
DB_SEQUENCE *
sequence (DB *db, U32 flags = 0)
CODE:
{
errno = db_sequence_create (&RETVAL, db, flags);
if (errno)
croak ("db_sequence_create: %s", db_strerror (errno));
}
OUTPUT:
RETVAL
#endif
MODULE = BDB PACKAGE = BDB::Txn
void
DESTROY (DB_TXN_ornuked *txn)
CODE:
if (txn)
txn->abort (txn);
int set_timeout (DB_TXN *txn, NV timeout, U32 flags = DB_SET_TXN_TIMEOUT)
CODE:
RETVAL = txn->set_timeout (txn, timeout * 1000000, flags);
OUTPUT:
RETVAL
int failed (DB_TXN *txn)
CODE:
RETVAL = !!(txn->flags & TXN_DEADLOCK);
OUTPUT:
RETVAL
MODULE = BDB PACKAGE = BDB::Cursor
void
DESTROY (DBC_ornuked *dbc)
CODE:
if (dbc)
dbc->c_close (dbc);
#if DBVER >= 406
int set_priority (DBC *dbc, int priority)
CODE:
dbc->set_priority (dbc, priority);
#endif
#if DBVER >= 403
MODULE = BDB PACKAGE = BDB::Sequence
void
DESTROY (DB_SEQUENCE_ornuked *seq)
CODE:
if (seq)
seq->close (seq, 0);
int initial_value (DB_SEQUENCE *seq, db_seq_t value)
CODE:
RETVAL = seq->initial_value (seq, value);
OUTPUT:
RETVAL
int set_cachesize (DB_SEQUENCE *seq, U32 size)
CODE:
RETVAL = seq->set_cachesize (seq, size);
OUTPUT:
RETVAL
int set_flags (DB_SEQUENCE *seq, U32 flags)
CODE:
RETVAL = seq->set_flags (seq, flags);
OUTPUT:
RETVAL
int set_range (DB_SEQUENCE *seq, db_seq_t min, db_seq_t max)
CODE:
RETVAL = seq->set_range (seq, min, max);
OUTPUT:
RETVAL
#endif