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/*
* ksrvext.h
*
* $Id$
*
* Virtuoso Server Extension API
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2018 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef _KSRVEXT_H
#define _KSRVEXT_H
#include "exe_export.h"
#include <limits.h>
#include <sys/types.h>
#include <setjmp.h>
#include "Dksystem.h"
#include "Dktypes.h"
#include "Dkbox.h"
#include "widv.h"
#include "sqlparext.h"
#ifdef __cplusplus
# define BEGIN_CPLUSPLUS extern "C" {
# define END_CPLUSPLUS }
#else
# define BEGIN_CPLUSPLUS
# define END_CPLUSPLUS
#endif
#ifdef __MINGW32__
#define VIRTVARCLASS extern
#include <winsock2.h>
#elif defined (WIN32)
#define VIRTVARCLASS __declspec (dllimport)
#include <winsock2.h>
#else
#define VIRTVARCLASS extern
#endif
#define timer_t opl_timer_t
typedef unsigned char * db_buf_t;
typedef struct query_s query_t;
typedef struct client_connection_s client_connection_t;
typedef struct ws_connection_s ws_connection_t;
typedef void * state_slot_t;
typedef struct query_instance_s query_instance_t;
typedef caddr_t (*bif_t) (caddr_t * qst, caddr_t * err_ret, state_slot_t ** args);
typedef struct local_cursor_s
{
caddr_t * lc_inst;
int lc_position;
caddr_t lc_error;
caddr_t lc_proc_ret; /* if stmt is a SQL procedure, this is the QA_PROC_RET block */
int lc_is_allocated; /* 1 if dk_alloc'd */
caddr_t lc_cursor_name; /* if lc implements scroll crsr and qi occurs in cli_cursors */
int lc_row_count;
} local_cursor_t;
typedef struct stmt_options_s {
ptrlong so_concurrency;
ptrlong so_is_async;
ptrlong so_max_rows;
ptrlong so_timeout;
ptrlong so_prefetch;
ptrlong so_autocommit;
ptrlong so_rpc_timeout;
ptrlong so_cursor_type;
ptrlong so_keyset_size;
ptrlong so_use_bookmarks;
ptrlong so_isolation;
ptrlong so_prefetch_bytes;
ptrlong so_unique_rows;
} stmt_options_t;
typedef void (*bif_type_func_t) (state_slot_t ** args, long *dtp, long *prec,
long *scale, caddr_t *collation);
typedef struct
{
bif_type_func_t bt_func;
long bt_dtp;
long bt_prec;
long bt_scale;
const char * bt_sql_dml_name;
} bif_type_t;
VIRTVARCLASS bif_type_t bt_varchar;
VIRTVARCLASS bif_type_t bt_any;
VIRTVARCLASS bif_type_t bt_integer;
VIRTVARCLASS bif_type_t bt_double;
VIRTVARCLASS bif_type_t bt_float;
VIRTVARCLASS bif_type_t bt_numeric;
VIRTVARCLASS bif_type_t bt_convert;
VIRTVARCLASS bif_type_t bt_timestamp;
VIRTVARCLASS bif_type_t bt_time;
VIRTVARCLASS bif_type_t bt_date;
VIRTVARCLASS bif_type_t bt_datetime;
VIRTVARCLASS bif_type_t bt_bin;
#define QRP_INT (long)0
#define QRP_STR (long)1
#define QRP_RAW (long)2
#define QST_INSTANCE(st) ((caddr_t*) qst)
void bif_define (const char *name, bif_t bif);
void bif_define_typed (const char * name, bif_t bif, bif_type_t *bt);
caddr_t bif_arg (caddr_t * qst, state_slot_t ** args, int nth, const char * func);
caddr_t bif_string_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
caddr_t bif_strses_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
struct xml_entity_s *bif_entity_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
struct xml_tree_ent_s *bif_tree_ent_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
caddr_t bif_bin_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
caddr_t bif_string_or_null_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
caddr_t bif_string_or_wide_or_null_arg (caddr_t * qst, state_slot_t ** args, int nth,
const char * func);
boxint bif_long_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
float bif_float_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
double bif_double_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
long bif_long_or_char_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
caddr_t bif_array_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
caddr_t bif_strict_array_or_null_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
caddr_t bif_array_or_null_arg (caddr_t * qst, state_slot_t ** args, int nth, const char *func);
void bif_result_inside_bif (int n, ...);
#ifdef MALLOC_DEBUG
#ifndef sqlr_error
caddr_t dbg_srv_make_new_error (const char *file, int line, const char *code, const char *virt_code, const char *msg, ...);
void dbg_sqlr_error (const char *file, int line, const char *code, const char *msg, ...) NORETURN;
void dbg_sqlr_new_error (const char *file, int line, const char *code, const char *virt_code, const char *msg, ...) NORETURN;
#define srv_make_new_error(code,virt_code,msg,...) dbg_srv_make_new_error (__FILE__, __LINE__, (code), (virt_code), (msg), ##__VA_ARGS__)
#define sqlr_error(code,msg,...) dbg_sqlr_error (__FILE__, __LINE__, (code), (msg), ##__VA_ARGS__)
#define sqlr_new_error(code,virt_code,msg,...) dbg_sqlr_new_error (__FILE__, __LINE__, (code), (virt_code), (msg), ##__VA_ARGS__)
#endif
#else
caddr_t srv_make_new_error (const char *code, const char *virt_code, const char *msg,...);
void sqlr_error (const char *code, const char *msg, ...) NORETURN;
void sqlr_new_error (const char *code, const char *virt_code, const char *msg,...) NORETURN;
#endif
void sqlr_resignal (caddr_t err) NORETURN;
query_t *sql_compile (char *string2, client_connection_t * cli, caddr_t * err, int store_procs);
void qr_free_1 (query_t * qr);
#ifdef MALLOC_DEBUG
extern void dbg_qr_free (DBG_PARAMS query_t * qr);
#define qr_free(qr) dbg_qr_free (__FILE__, __LINE__, (qr))
#else
extern void qr_free (query_t * qr);
#endif
caddr_t qr_rec_exec (query_t * qr, client_connection_t * cli,
local_cursor_t ** lc_ret, query_instance_t * caller, stmt_options_t * opts, long n_pars, ...);
long lc_next (local_cursor_t * lc);
caddr_t lc_nth_col (local_cursor_t * lc, int n);
void lc_free (local_cursor_t * lc);
client_connection_t * qi_client (caddr_t * qi);
caddr_t row_str_column (caddr_t * qst, db_buf_t str, char *tb_name,
char *col_name, int *exists);
caddr_t row_str_table (caddr_t * qst, db_buf_t str);
void qst_free (caddr_t * qst);
void qst_set (caddr_t * state, state_slot_t * sl, caddr_t v);
int ssl_is_settable (state_slot_t * ssl);
caddr_t list (long n, ...);
caddr_t sc_list (long n, ...);
/* server start */
void srv_global_init (void);
void srv_plugins_init (void);
void db_crash_to_log (char *mode);
void db_to_log (void);
void db_recover_key (int k_id, int id);
void db_recover_keys (char *keys);
caddr_t row_str_column (caddr_t * qst, db_buf_t str, char *tb_name,
char *col_name, int *exists);
char * dv_type_title (int type);
typedef void (*exit_hook_t) (void);
void VirtuosoServerSetInitHook (void (*hook) (void));
exit_hook_t VirtuosoServerSetExitHook (exit_hook_t exitf);
int VirtuosoServerMain (int argc, char **argv);
typedef int32 TVAL;
typedef struct timer_s timer_t;
typedef struct timer_queue_s timer_queue_t;
typedef int (*thread_init_func) (void *arg);
typedef struct mutex_s dk_mutex_t;
typedef struct semaphore_s semaphore_t;
typedef struct dk_thread_s dk_thread_t;
typedef void (*timer_callback_t) (void *arg);
typedef struct timeval timeval_t;
BEGIN_CPLUSPLUS
extern int _thread_sched_preempt;
extern int _thread_num_total;
extern int _thread_num_runnable;
extern int _thread_num_wait;
extern int _thread_num_dead;
int log_info (char *format, ...);
int log_debug (char *format, ...);
void thread_allow_schedule (void);
void thread_exit (int n);
int *thread_errno (void);
void thread_freeze (void);
int thread_wait_cond (void *event, dk_mutex_t *holds, TVAL timeout);
int thread_signal_cond (void *event);
int thread_select (int n, fd_set *rfds, fd_set *wfds, void *event, TVAL timeout);
void thread_sleep (TVAL msec);
struct sockaddr;
int thread_nb_fd (int fd);
int thread_open (char *fname, int mode, int perms);
int thread_close (int fd);
ssize_t thread_read (int fd, void *buffer, size_t length);
ssize_t thread_write (int fd, void *buffer, size_t length);
int thread_socket (int family, int type, int proto);
int thread_closesocket (int sock);
int thread_bind (int sock, struct sockaddr *addr, int len);
int thread_listen (int sock, int n);
int thread_accept (int sock, struct sockaddr *addr, int *plen, TVAL timeout);
int thread_connect (int sock, struct sockaddr *addr, int len);
ssize_t thread_send (int sock, void *buffer, size_t length, TVAL timeout);
ssize_t thread_recv (int sock, void *buffer, size_t length, TVAL timeout);
semaphore_t *semaphore_allocate (int entry_count);
void semaphore_free (semaphore_t *sem);
int semaphore_enter (semaphore_t *sem);
int semaphore_try_enter (semaphore_t *sem);
#ifdef SEM_DEBUG
void semaphore_leave_dbg (int ln, const char *file, semaphore_t *sem);
#define semaphore_leave(s) semaphore_leave_dbg (__LINE__, __FILE__, s)
#else
void semaphore_leave (semaphore_t *sem);
#endif
dk_mutex_t *mutex_allocate (void);
#ifdef WIN32
dk_mutex_t *mutex_allocate_typed (int mutex_type);
#else
#define mutex_allocate_typed(value) mutex_allocate()
#endif
void mutex_free (dk_mutex_t *mtx);
int mutex_enter (dk_mutex_t *mtx);
int mutex_try_enter (dk_mutex_t *mtx);
void mutex_leave (dk_mutex_t *mtx);
END_CPLUSPLUS
struct timer_s
{
timer_t * tmr_next; /* chain for activated timers */
timer_t * tmr_prev; /* chain for activated timers */
timer_queue_t * tmr_queue; /* owner */
int tmr_ref; /* reference counter */
int32 tmr_remain; /* remaining time, if activated */
TVAL tmr_interval; /* interval time for autorepeat */
int tmr_calling; /* to avoid recursive locks */
timer_callback_t tmr_callout; /* function to call when fired */
void * tmr_call_arg; /* argument to tmr_callout */
};
typedef struct thread_hdr_s thread_hdr_t;
struct thread_hdr_s
{
thread_hdr_t * thr_next;
thread_hdr_t * thr_prev;
};
struct thread_queue_s
{
thread_hdr_t thq_head;
int thq_count;
};
typedef struct
{
jmp_buf buf;
} jmp_buf_splice;
struct thread_s
{
/* pointers for a thread queue */
thread_hdr_t thr_hdr;
/* running status, see below */
int thr_status;
/* current priority */
int thr_priority;
/* thread specific attributes (thread local storage) */
void * thr_attributes;
/* thread specific errno */
int thr_err;
/* if WAITING, thr_timer can interrupt */
void * thr_event;
timer_t * thr_timer;
/* used in thread_select */
int thr_retcode;
int thr_nfds;
fd_set thr_rfds;
fd_set thr_wfds;
/* restart context for a "dead" or new thread */
jmp_buf thr_init_context;
thread_init_func thr_initial_function;
void * thr_initial_argument;
/* stack size, if applicable */
unsigned long thr_stack_size;
void * thr_stack_base; /* address near bottom, use for overflow detection */
/* saved during a context switch */
jmp_buf thr_context; /* simulated threads */
/* stack protection */
unsigned int * thr_stack_marker; /* simulated threads */
void * thr_cv; /* condition variable */
void * thr_handle; /* os specific handle */
#ifdef WIN32
void * thr_sec_token; /* Win security token */
#endif
/* Compatibility dk_thread */
semaphore_t * thr_sem;
semaphore_t * thr_schedule_sem;
void * thr_client_data;
void * thr_alloc_cache;
/* preallocated thread attributes */
jmp_buf_splice * thr_reset_ctx;
caddr_t thr_reset_code;
caddr_t thr_func_value;
void * thr_tmp_pool;
int thr_attached;
caddr_t thr_dbg;
};
#define MAX_NESTED_FUTURES 20
typedef struct future_request_s future_request_t;
typedef struct thread_s thread_t;
#define du_thread_t thread_t
struct dk_thread_s
{
du_thread_t * dkt_process;
int dkt_request_count;
future_request_t * dkt_requests[MAX_NESTED_FUTURES];
};
struct mutex_s
{
/* os specific handle */
#ifdef WITH_PTHREADS
#ifdef HAVE_SPINLOCK
#define mtx_mtx l.mtx
union {
pthread_mutex_t mtx;
pthread_spinlock_t spinl;
} l;
#else
pthread_mutex_t mtx_mtx;
#endif
#endif
void * mtx_handle;
#ifdef APP_SPIN
int mtx_spins;
#endif
#if defined (MTX_DEBUG) || defined (MTX_METER)
caddr_t mtx_name;
#endif
#ifdef MTX_DEBUG
thread_t * mtx_owner;
const char * mtx_entry_file;
int mtx_entry_line;
const char * mtx_leave_file;
int mtx_leave_line;
mtx_entry_check_t mtx_entry_check;
void * mtx_entry_check_cd;
#endif
#ifdef MTX_METER
long mtx_spin_waits;
long mtx_waits;
long mtx_enters;
#endif
int mtx_type;
};
dk_thread_t * PrpcThreadAllocate (thread_init_func init, unsigned long stack_size, void *init_arg);
dk_thread_t * PrpcThreadAttach (void);
void PrpcThreadDetach (void);
int strses_aref (caddr_t ses1, int idx);
caddr_t box_narrow_string_as_utf8 (caddr_t _str, caddr_t narrow, long max_len,
caddr_t _charset);
caddr_t box_wide_as_utf8_char (caddr_t _wide, long wide_len, dtp_t dtp);
caddr_t box_utf8_string_as_narrow (ccaddr_t _str, caddr_t narrow, long max_len,
caddr_t _charset);
extern caddr_t box_utf8_as_wide_char (ccaddr_t _utf8, caddr_t _wide_dest,
long utf8_len, long max_wide_len);
caddr_t box_wide_char_string (caddr_t data, size_t len);
caddr_t box_varchar_string (db_buf_t place, int len, dtp_t dtp);
caddr_t box_cast_to (caddr_t * qst, caddr_t data, dtp_t data_dtp,
dtp_t to_dtp, ptrlong prec, ptrlong scale, caddr_t * err_ret);
void dt_to_parts (char *dt, int *year, int *month, int *day, int *hour,
int *minute, int *second, int *fraction);
void dt_from_parts (char *dt, int year, int month, int day, int hour,
int minute, int second, int fraction, int tz);
thread_t * thread_current (void);
#define NUMERIC_MAX_PRECISION 40
#define NUMERIC_MAX_SCALE 15
typedef struct dk_session_s dk_session_t;
typedef struct request_rec_t request_rec;
typedef struct buffer_elt_s buffer_elt_t;
struct buffer_elt_s
{
char * data;
int fill;
int read;
buffer_elt_t * next;
};
typedef enum { DKST_IDLE = 0, DKST_RUN, DKST_FINISH, DKST_BURST } dks_thread_state_t;
typedef struct basket_s basket_t;
struct basket_s
{
basket_t * bsk_next;
basket_t * bsk_prev;
union
{
long longval;
void * ptrval;
} bsk_data;
};
typedef struct hash_elt_s hash_elt_t;
struct hash_elt_s
{
const void * key;
void * data;
hash_elt_t * next;
};
typedef struct
{
hash_elt_t * ht_elements;
uint32 ht_count;
uint32 ht_actual_size;
uint32 ht_rehash_threshold;
#ifdef MTX_DEBUG
dk_mutex_t * ht_required_mtx;
#endif
#ifdef HT_STATS
uint32 ht_max_colls;
uint32 ht_stats[30];
uint32 ht_ngets;
uint32 ht_nsets;
#endif
} dk_hash_t;
struct dk_session_s
{
session_t * dks_session;
dk_mutex_t * dks_mtx;
int dks_refcount;
int dks_in_length;
int dks_in_fill;
int dks_in_read;
char * dks_in_buffer;
buffer_elt_t * dks_buffer_chain;
buffer_elt_t * dks_buffer_chain_tail;
char * dks_out_buffer;
int dks_out_length;
int dks_out_fill;
struct scheduler_io_data_s *dks_client_data; /*!< Used by scheduler */
void * dks_object_data; /*!< Used by Distributed Objects */
void * dks_object_temp; /*!< Used by Distributed Objects */
OFF_T dks_bytes_sent; /*!< Used by Administration server */
OFF_T dks_bytes_received;/*!< Used by Administration server */
char * dks_peer_name;
char * dks_own_name;
caddr_t * dks_caller_id_opts;
void * dks_dbs_data;
void * dks_cluster_data; /* cluster interconnect state. Not the same as dks_dbs_data because dks_dbs_data when present determines protocol vrsions and cluster is all the same version */
void * dks_write_temp; /* Used by Distributed Objects */
/*! max msecs to block on a read */
timeout_t dks_read_block_timeout;
/*! Is this a client or server initiated session */
char dks_is_server;
char dks_cluster_flags;
char dks_to_close;
char dks_is_read_select_ready; /*! Is the next read known NOT to block */
char dks_ws_status;
short dks_n_threads;
/*! time of last usage (get_msec_real_time) - use for dropping idle HTTP keep alives */
uint32 dks_last_used;
/*! burst mode */
dks_thread_state_t dks_thread_state;
/*! web server thread associated to this if ws computation pending. Used to cancel upon client disconnect */
void * dks_ws_pending;
/*! fixed server thread per client */
du_thread_t * dks_fixed_thread; /*!< note: also used to pass the http ses for chunked write */
basket_t dks_fixed_thread_reqs;
du_thread_t * dks_waiting_http_recall_session;
dk_hash_t * dks_pending_futures;
};
void session_buffered_write_char (int c, dk_session_t * ses);
void print_long (long l, dk_session_t * session);
typedef int (*ses_write_func) (void * obj, dk_session_t * session);
void PrpcSetWriter (dtp_t dtp, ses_write_func f);
#define SESSION_DK_SESSION(session) \
(*((dk_session_t **) (&((session)->ses_client_data))))
#define DKSESSTAT_ISSET(x,y) \
SESSTAT_ISSET(x->dks_session, y)
#define SES_WRITE(ses, s) session_buffered_write (ses, s, strlen (s))
#define current_thread thread_current()
#define THREAD_CURRENT_THREAD current_thread
#define SET_THR_ATTR(th,a,v) thread_setattr(th, (void *)(long) a, v)
#define THR_ATTR(th,a) thread_getattr(th, (void *)(long) a)
void strses_flush (dk_session_t *ses);
long strses_length (dk_session_t *ses);
void strses_free (dk_session_t *ses);
dk_session_t *strses_allocate (void);
int session_buffered_write (dk_session_t * ses, char *buffer, size_t length);
void * thread_getattr (thread_t *self, void *key);
thread_t * thread_current (void);
void * thread_setattr (thread_t *self, void *key, void *value);
int strnicmp (const char *s1, const char *s2, size_t n);
#ifdef MALLOC_DEBUG
#define DBG_NAME(nm) dbg_##nm
#define DBG_PARAMS char *file, int line,
#define DBG_ARGS file, line,
#define DK_ALLOC(SIZE) dbg_malloc(DBG_ARGS (SIZE))
#define DK_FREE(BOX,SIZE) dbg_free(DBG_ARGS (BOX))
#else
#define DBG_NAME(nm) nm
#define DBG_PARAMS
#define DBG_ARGS
#define DK_ALLOC dk_alloc
#define DK_FREE dk_free
#endif
typedef struct s_node_s s_node_t, *dk_set_t;
struct s_node_s
{
void * data;
s_node_t * next;
};
#ifdef MALLOC_DEBUG
caddr_t dbg_strses_string (DBG_PARAMS dk_session_t * ses);
caddr_t dbg_list_to_array (char *file, int line, dk_set_t l);
#define strses_string(S) dbg_strses_string (__FILE__, __LINE__, (S))
#define list_to_array(S) dbg_list_to_array (__FILE__, __LINE__, (S))
#else
caddr_t strses_string (dk_session_t * ses);
caddr_t list_to_array (dk_set_t l);
#endif
void dk_set_push (dk_set_t *ret, void *item);
dk_set_t dk_set_nreverse (dk_set_t set);
#define DV_EXTENSION_OBJ 251
#define DO_SET(type, var, set) \
{ \
type var; \
s_node_t *iter = *set; \
s_node_t *nxt; \
for ( ; (NULL != iter); iter = nxt) \
{ \
var = (type) (iter->data); \
nxt = iter->next;
#define END_DO_SET() \
} \
}
extern void (*ddl_init_hook) (client_connection_t *cli);
char *get_java_classpath (void);
int virtuoso_cfg_getstring (char *section, char *key, char **pret);
int virtuoso_cfg_getlong (char *section, char *key, long *pret);
int virtuoso_cfg_first_string (char * section, char **pkey, char **pret);
int virtuoso_cfg_next_string (char **pkey, char **pret);
void build_set_special_server_model (const char *new_model);void qi_check_trx_error (query_instance_t * qi, int only_terminate);
void qi_signal_if_trx_error (query_instance_t * qi);
#define isp_schema(x) isp_schema_1(x)
extern int http_ses_size;
void strses_enable_paging (dk_session_t *ses, int max_bytes_in_mem);
#endif /* _KSRVEXT_H */
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