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fis-gtm/sr_port/gbldefs.c

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/****************************************************************
* *
* Copyright 2001, 2012 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* General repository for global variable definitions. This keeps us from
pulling in modules and all their references when all we wanted was the
global data def.. */
#include "mdef.h"
#include "gtm_inet.h"
#include "gtm_iconv.h"
#include "gtm_socket.h"
#include "gtm_unistd.h"
#include "gtm_limits.h"
#include <signal.h>
#include <sys/time.h>
#ifdef UNIX
# include <sys/un.h>
#endif
#ifdef VMS
# include <descrip.h> /* Required for gtmsource.h */
# include <ssdef.h>
# include <fab.h>
# include "desblk.h"
#endif
#include "cache.h"
#include "hashtab_addr.h"
#include "hashtab_int4.h"
#include "hashtab_int8.h"
#include "hashtab_mname.h"
#include "hashtab_str.h"
#include "hashtab_objcode.h"
/* The define of CHEXPAND below causes error.h to create GBLDEFs */
#define CHEXPAND
#include "error.h"
#include "rtnhdr.h"
#include "gdsroot.h"
#include "gdskill.h"
#include "ccp.h"
#include "gtm_facility.h"
#include "fileinfo.h"
#include "gdsbt.h"
#include "gdsfhead.h"
#include "filestruct.h"
#include "gdscc.h"
#include "comline.h"
#include "compiler.h"
#include "cmd_qlf.h"
#include "io.h"
#include "iosp.h"
#include "jnl.h"
#include "lv_val.h"
#include "mdq.h"
#include "mprof.h"
#include "mv_stent.h"
#include "stack_frame.h"
#include "stp_parms.h"
#include "stringpool.h"
#include "buddy_list.h" /* needed for tp.h */
#include "tp.h"
#include "tp_frame.h"
#include "mlkdef.h"
#include "zshow.h"
#include "zwrite.h"
#include "zbreak.h"
#include "mmseg.h"
#ifndef VMS
# include "gtmsiginfo.h"
#endif
#include "gtmimagename.h"
#include "iotcpdef.h"
#include "gt_timer.h"
#include "iosocketdef.h" /* needed for socket_pool and MAX_N_SOCKETS */
#include "ctrlc_handler_dummy.h"
#include "unw_prof_frame_dummy.h"
#include "op.h"
#include "gtmsecshr.h"
#include "error_trap.h"
#include "patcode.h" /* for pat_everything and sizeof_pat_everything */
#include "source_file.h" /* for REV_TIME_BUFF_LEN */
#include "mupipbckup.h"
#include "dpgbldir.h"
#include "mmemory.h"
#include "have_crit.h"
#include "alias.h"
/* FOR REPLICATION RELATED GLOBALS */
#include "repl_msg.h"
#include "gtmsource.h"
#include "gtmrecv.h"
/* FOR MERGE RELATED GLOBALS */
#include "gvname_info.h"
#include "op_merge.h"
#ifdef UNIX
#include "cli.h"
#include "invocation_mode.h"
#include "fgncal.h"
#include "parse_file.h" /* for MAX_FBUFF */
#include "repl_sem.h"
#include "gtm_zlib.h"
#endif
#include "jnl_typedef.h"
#ifdef VMS
#include "gtm_logicals.h" /* for GTM_MEMORY_NOACCESS_COUNT */
#endif
#include "gds_blk_upgrade.h" /* for UPGRADE_IF_NEEDED flag */
#include "cws_insert.h" /* for CWS_REORG_ARRAYSIZE */
#ifdef UNICODE_SUPPORTED
#include "gtm_icu_api.h"
#include "gtm_utf8.h"
#endif
# ifdef GTM_CRYPT
# include "gtmcrypt.h"
# include "gdsblk.h"
# include "muextr.h"
# endif
#ifdef GTM_TRIGGER
#include "gv_trigger.h"
#include "gtm_trigger.h"
#endif
#define DEFAULT_ZERROR_STR "Unprocessed $ZERROR, see $ZSTATUS"
#define DEFAULT_ZERROR_LEN (SIZEOF(DEFAULT_ZERROR_STR) - 1)
GBLDEF gd_region *db_init_region;
GBLDEF sgmnt_data_ptr_t cs_data;
GBLDEF sgmnt_addrs *cs_addrs;
GBLDEF sgmnt_addrs *cs_addrs_list; /* linked list of csa corresponding to all currently open databases */
GBLDEF unsigned short proc_act_type;
GBLDEF volatile bool ctrlc_pending;
GBLDEF volatile int4 ctrap_action_is;
GBLDEF bool out_of_time;
GBLDEF io_pair io_curr_device; /* current device */
GBLDEF io_pair io_std_device; /* standard device */
GBLDEF io_log_name *dollar_principal; /* pointer to log name GTM$PRINCIPAL if defined */
GBLDEF bool prin_in_dev_failure;
GBLDEF bool prin_out_dev_failure;
GBLDEF io_desc *active_device;
GBLDEF bool error_mupip,
file_backed_up,
gv_replopen_error,
gv_replication_error,
incremental,
jobpid,
online,
record,
std_dev_outbnd,
in_mupip_freeze,
in_backup,
view_debug1,
view_debug2,
view_debug3,
view_debug4,
mupip_error_occurred,
dec_nofac;
GBLDEF boolean_t is_updproc,
is_updhelper,
mupip_jnl_recover,
suspend_lvgcol,
run_time,
unhandled_stale_timer_pop,
gtcm_connection,
is_replicator, /* TRUE => this process can write jnl records to the jnlpool for replicated db */
tp_in_use, /* TRUE => TP has been used by this process and is thus initialized */
dollar_truth = TRUE,
gtm_stdxkill, /* TRUE => Use M Standard X-KILL - FALSE use historical GTM X-KILL (default) */
in_timed_tn, /* TRUE => Timed TP transaction in progress */
tp_timeout_deferred; /* TRUE => A TP timeout has occurred but is deferred */
GBLDEF volatile boolean_t tp_timeout_set_xfer; /* TRUE => A timeout succeeded in setting xfer table intercepts. This flag stays
* a true global unless each thread gets its own xfer table.
*/
GBLDEF VSIG_ATOMIC_T forced_exit; /* Asynchronous signal/interrupt handler sets this variable to TRUE,
* hence the VSIG_ATOMIC_T type in the definition.
*/
GBLDEF intrpt_state_t intrpt_ok_state = INTRPT_OK_TO_INTERRUPT; /* any other value implies it is not ok to interrupt */
GBLDEF unsigned char *msp,
*mubbuf,
*restart_ctxt,
*stackbase,
*stacktop,
*stackwarn,
*restart_pc;
GBLDEF int4 backup_close_errno,
backup_write_errno,
mubmaxblk,
forced_exit_err,
exit_state,
restore_read_errno;
GBLDEF volatile int4 outofband, crit_count;
GBLDEF int mumps_status = SS_NORMAL,
stp_array_size;
GBLDEF gvzwrite_datablk *gvzwrite_block;
GBLDEF lvzwrite_datablk *lvzwrite_block;
GBLDEF io_log_name *io_root_log_name;
GBLDEF mliteral literal_chain;
GBLDEF mstr *comline_base,
*err_act,
**stp_array,
extnam_str,
env_gtm_env_xlate;
GBLDEF MSTR_CONST(default_sysid, "gtm_sysid");
GBLDEF mval dollar_zgbldir,
dollar_zsource = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0),
dollar_zstatus,
dollar_zstep = DEFINE_MVAL_STRING(MV_STR | MV_NM | MV_INT | MV_NUM_APPROX, 0, 0, 1, "B", 0, 0),
dollar_ztrap,
ztrap_pop2level = DEFINE_MVAL_STRING(MV_NM | MV_INT, 0, 0, 0, 0, 0, 0),
zstep_action,
dollar_system,
dollar_estack_delta = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0),
dollar_etrap,
dollar_zerror = DEFINE_MVAL_STRING(MV_STR, 0, 0, DEFAULT_ZERROR_LEN, DEFAULT_ZERROR_STR, 0, 0),
dollar_zyerror,
dollar_ztexit = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0);
GBLDEF uint4 dollar_zjob;
GBLDEF mval dollar_zinterrupt;
GBLDEF boolean_t dollar_zininterrupt;
GBLDEF boolean_t dollar_ztexit_bool; /* Truth value of dollar_ztexit when coerced to boolean */
GBLDEF boolean_t dollar_zquit_anyway;
GBLDEF mv_stent *mv_chain;
GBLDEF sgm_info *first_sgm_info; /* List of participating regions in the TP transaction with NO ftok ordering */
GBLDEF sgm_info *first_tp_si_by_ftok; /* List of participating regions in the TP transaction sorted on ftok order */
GBLDEF spdesc indr_stringpool,
rts_stringpool,
stringpool;
GBLDEF stack_frame *frame_pointer;
GBLDEF stack_frame *zyerr_frame = NULL;
GBLDEF symval *curr_symval;
GBLDEF tp_frame *tp_pointer;
GBLDEF tp_region *halt_ptr,
*grlist;
GBLDEF trans_num local_tn; /* transaction number for THIS PROCESS (starts at 0 each time) */
GBLDEF trans_num tstart_local_tn; /* copy of global variable "local_tn" at op_tstart time */
GBLDEF gv_namehead *gv_target;
GBLDEF gv_namehead *gv_target_list; /* List of ALL gvts that were allocated (in targ_alloc) by this process */
GBLDEF gv_namehead *gvt_tp_list; /* List of gvts that were referenced in the current TP transaction */
GBLDEF gvt_container *gvt_pending_list; /* list of gvts that need to be re-examined/re-allocated when region is opened */
GBLDEF buddy_list *gvt_pending_buddy_list;/* buddy_list for maintaining memory for gv_targets to be re-examined/allocated */
GBLDEF int4 exi_condition;
GBLDEF uint4 gtmDebugLevel;
GBLDEF caddr_t smCallerId; /* Caller of top level malloc/free */
GBLDEF int process_exiting;
GBLDEF int4 dollar_zsystem;
GBLDEF int4 dollar_zeditor;
GBLDEF boolean_t sem_incremented;
GBLDEF rtn_tabent *rtn_fst_table, *rtn_names, *rtn_names_top, *rtn_names_end;
GBLDEF int4 break_message_mask;
GBLDEF bool rc_locked;
GBLDEF boolean_t certify_all_blocks; /* If flag is set all blocks are checked after they are
* written to the database. Upon error we stay critical
* and report. This flag can be set via the MUMPS command
* VIEW "GDSCERT":1. */
GBLDEF mval curr_gbl_root;
GBLDEF gd_addr *original_header;
GBLDEF hash_table_str *complits_hashtab;
GBLDEF hash_table_str *compsyms_hashtab;
GBLDEF mem_list *mem_list_head;
GBLDEF boolean_t debug_mupip;
GBLDEF unsigned char t_fail_hist[CDB_MAX_TRIES]; /* type has to be unsigned char and not enum cdb_sc to ensure single byte */
GBLDEF cache_rec_ptr_t cr_array[((MAX_BT_DEPTH * 2) - 1) * 2]; /* Maximum number of blocks that can be in transaction */
GBLDEF unsigned int cr_array_index;
GBLDEF boolean_t need_core; /* Core file should be created */
GBLDEF boolean_t created_core; /* core file was created */
GBLDEF unsigned int core_in_progress; /* creating core NOW if > 0 */
GBLDEF boolean_t dont_want_core; /* Higher level flag overrides need_core set by lower level rtns */
GBLDEF boolean_t exit_handler_active; /* recursion prevention */
GBLDEF boolean_t block_saved;
#if defined(KEEP_zOS_EBCDIC) || defined(VMS)
GBLDEF iconv_t dse_over_cvtcd = (iconv_t)0;
#endif
GBLDEF gtm_chset_t dse_over_chset = CHSET_M;
LITDEF MIDENT_DEF(zero_ident, 0, NULL); /* the null mident */
GBLDEF char *lexical_ptr;
GBLDEF int4 aligned_source_buffer[MAX_SRCLINE / SIZEOF(int4) + 1];
GBLDEF unsigned char *source_buffer = (unsigned char *)aligned_source_buffer;
GBLDEF src_line_struct src_head;
GBLDEF short int source_column, source_line;
GBLDEF bool devctlexp;
GBLDEF char cg_phase; /* code generation phase */
/* Previous code generation phase: Only used by emit_code.c to initialize the push list at the
* beginning of each phase (bug fix: C9D12-002478) */
GBLDEF char cg_phase_last;
GBLDEF int cmd_cnt;
GBLDEF command_qualifier glb_cmd_qlf = { CQ_DEFAULT },
cmd_qlf = { CQ_DEFAULT };
#ifdef __osf__
#pragma pointer_size (save)
#pragma pointer_size (long)
#endif
GBLDEF char **cmd_arg;
#ifdef __osf__
#pragma pointer_size (restore)
#endif
#ifdef UNIX
GBLDEF volatile uint4 heartbeat_counter = 0;
GBLDEF boolean_t heartbeat_started;
#endif
/* DEFERRED EVENTS */
GBLDEF int dollar_zmaxtptime = 0;
GBLDEF bool licensed = TRUE;
#if defined(UNIX)
GBLDEF volatile int4 num_deferred;
#elif defined(VMS)
GBLDEF volatile short num_deferred;
GBLDEF int4 lkid, lid;
GBLDEF desblk exi_blk;
GBLDEF struct chf$signal_array *tp_restart_fail_sig;
GBLDEF boolean_t tp_restart_fail_sig_used;
#else
# error "Unsupported Platform"
#endif
GBLDEF volatile int4 fast_lock_count = 0; /* Used in wcs_stale */
/* REPLICATION RELATED GLOBALS */
GBLDEF gtmsource_options_t gtmsource_options;
GBLDEF gtmrecv_options_t gtmrecv_options;
GBLDEF boolean_t is_tracing_on;
GBLDEF void (*tp_timeout_start_timer_ptr)(int4 tmout_sec) = tp_start_timer_dummy;
GBLDEF void (*tp_timeout_clear_ptr)(void) = tp_clear_timeout_dummy;
GBLDEF void (*tp_timeout_action_ptr)(void) = tp_timeout_action_dummy;
GBLDEF void (*ctrlc_handler_ptr)() = ctrlc_handler_dummy;
GBLDEF int (*op_open_ptr)(mval *v, mval *p, int t, mval *mspace) = op_open_dummy;
GBLDEF void (*unw_prof_frame_ptr)(void) = unw_prof_frame_dummy;
GBLDEF boolean_t mu_reorg_process; /* set to TRUE by MUPIP REORG */
GBLDEF boolean_t mu_reorg_in_swap_blk; /* set to TRUE for the duration of the call to "mu_swap_blk" */
GBLDEF boolean_t mu_rndwn_process;
GBLDEF gv_key *gv_currkey_next_reorg;
GBLDEF gv_namehead *reorg_gv_target;
#ifdef UNIX
GBLDEF struct sockaddr_un gtmsecshr_sock_name;
GBLDEF struct sockaddr_un gtmsecshr_cli_sock_name;
GBLDEF key_t gtmsecshr_key;
#endif
GBLDEF int gtmsecshr_sockpath_len;
GBLDEF int gtmsecshr_cli_sockpath_len;
GBLDEF mstr gtmsecshr_pathname;
GBLDEF int server_start_tries;
GBLDEF int gtmsecshr_log_file;
GBLDEF int gtmsecshr_sockfd = FD_INVALID;
GBLDEF boolean_t gtmsecshr_sock_init_done;
GBLDEF char muext_code[MUEXT_MAX_TYPES][2] =
{
# define MUEXT_TABLE_ENTRY(muext_rectype, code0, code1) {code0, code1},
# include "muext_rec_table.h"
# undef MUEXT_TABLE_ENTRY
};
GBLDEF int patch_is_fdmp;
GBLDEF int patch_fdmp_recs;
GBLDEF boolean_t horiz_growth;
GBLDEF int4 prev_first_off, prev_next_off;
/* these two globals store the values of first_off and next_off in cse,
* when there is a blk split at index level. This is to permit rollback
* to intermediate states */
GBLDEF sm_uc_ptr_t min_mmseg;
GBLDEF sm_uc_ptr_t max_mmseg;
GBLDEF mmseg *mmseg_head;
GBLDEF ua_list *first_ua, *curr_ua;
GBLDEF char *update_array, *update_array_ptr;
GBLDEF int gv_fillfactor = 100,
rc_set_fragment; /* Contains offset within data at which data fragment starts */
GBLDEF uint4 update_array_size = 0,
cumul_update_array_size = 0; /* the current total size of the update array */
GBLDEF kill_set *kill_set_tail;
GBLDEF boolean_t pool_init = FALSE;
GBLDEF boolean_t is_src_server = FALSE;
GBLDEF boolean_t is_rcvr_server = FALSE;
GBLDEF jnl_format_buffer *non_tp_jfb_ptr = NULL;
GBLDEF unsigned char *non_tp_jfb_buff_ptr;
GBLDEF boolean_t dse_running = FALSE;
GBLDEF jnlpool_addrs jnlpool;
GBLDEF jnlpool_ctl_ptr_t jnlpool_ctl;
GBLDEF jnlpool_ctl_struct temp_jnlpool_ctl_struct;
GBLDEF jnlpool_ctl_ptr_t temp_jnlpool_ctl = &temp_jnlpool_ctl_struct;
GBLDEF sm_uc_ptr_t jnldata_base;
GBLDEF int4 jnlpool_shmid = INVALID_SHMID;
GBLDEF recvpool_addrs recvpool;
GBLDEF int recvpool_shmid = INVALID_SHMID;
GBLDEF int gtmsource_srv_count = 0;
GBLDEF int gtmrecv_srv_count = 0;
/* The following _in_prog counters are needed to prevent deadlocks while doing jnl-qio (timer & non-timer). */
GBLDEF volatile int4 db_fsync_in_prog;
GBLDEF volatile int4 jnl_qio_in_prog;
#ifdef UNIX
GBLDEF void (*op_write_ptr)(mval *);
GBLDEF void (*op_wteol_ptr)(int4 n);
GBLDEF gtmsiginfo_t signal_info;
#ifndef MUTEX_MSEM_WAKE
GBLDEF int mutex_sock_fd = FD_INVALID;
GBLDEF struct sockaddr_un mutex_sock_address;
GBLDEF struct sockaddr_un mutex_wake_this_proc;
GBLDEF int mutex_wake_this_proc_len;
GBLDEF int mutex_wake_this_proc_prefix_len;
GBLDEF fd_set mutex_wait_on_descs;
#endif
#endif
GBLDEF void (*call_on_signal)();
GBLDEF enum gtmImageTypes image_type; /* initialized at startup i.e. in dse.c, lke.c, gtm.c, mupip.c, gtmsecshr.c etc. */
#ifdef UNIX
GBLDEF parmblk_struct *param_list; /* call-in parameters block (defined in unix/fgncalsp.h)*/
GBLDEF unsigned int invocation_mode = MUMPS_COMPILE; /* how mumps has been invoked */
GBLDEF char cli_err_str[MAX_CLI_ERR_STR] = ""; /* Parse Error message buffer */
GBLDEF char *cli_err_str_ptr = NULL;
GBLDEF io_desc *gtm_err_dev = NULL;
GBLDEF boolean_t gtm_pipe_child = FALSE;
#endif
/* this array is indexed by file descriptor */
GBLDEF boolean_t *lseekIoInProgress_flags = (boolean_t *)0;
#if defined(UNIX)
/* Latch variable for Unix implementations. Used in SUN and HP */
GBLDEF global_latch_t defer_latch;
#endif
GBLDEF int num_additional_processors;
GBLDEF int gtm_errno = -1; /* holds the errno (unix) in case of an rts_error */
GBLDEF int4 error_condition = 0;
GBLDEF global_tlvl_info *global_tlvl_info_head;
GBLDEF buddy_list *global_tlvl_info_list;
GBLDEF boolean_t job_try_again;
GBLDEF volatile int4 gtmMallocDepth; /* Recursion indicator */
GBLDEF d_socket_struct *socket_pool;
GBLDEF boolean_t mu_star_specified;
GBLDEF backup_reg_list *mu_repl_inst_reg_list;
#ifndef VMS
GBLDEF volatile int suspend_status = NO_SUSPEND;
#endif
GBLDEF gv_namehead *reset_gv_target = INVALID_GV_TARGET;
GBLDEF VSIG_ATOMIC_T util_interrupt = 0;
GBLDEF sgmnt_addrs *kip_csa;
GBLDEF boolean_t need_kip_incr;
GBLDEF int merge_args = 0;
GBLDEF merge_glvn_ptr mglvnp = NULL;
GBLDEF int ztrap_form;
GBLDEF boolean_t ztrap_new;
GBLDEF int4 wtfini_in_prog;
/* items for $piece stats */
#ifdef DEBUG
GBLDEF int c_miss; /* cache misses (debug) */
GBLDEF int c_hit; /* cache hits (debug) */
GBLDEF int c_small; /* scanned small string brute force */
GBLDEF int c_small_pcs; /* chars scanned by small scan */
GBLDEF int c_pskip; /* number of pieces "skipped" */
GBLDEF int c_pscan; /* number of pieces "scanned" */
GBLDEF int c_parscan; /* number of partial scans (partial cache hits) */
GBLDEF int cs_miss; /* cache misses (debug) */
GBLDEF int cs_hit; /* cache hits (debug) */
GBLDEF int cs_small; /* scanned small string brute force */
GBLDEF int cs_small_pcs; /* chars scanned by small scan */
GBLDEF int cs_pskip; /* number of pieces "skipped" */
GBLDEF int cs_pscan; /* number of pieces "scanned" */
GBLDEF int cs_parscan; /* number of partial scans (partial cache hits) */
GBLDEF int c_clear; /* cleared due to (possible) value change */
GBLDEF boolean_t setp_work;
#endif
GBLDEF z_records zbrk_recs = {NULL, NULL, NULL};
#ifdef UNIX
GBLDEF ipcs_mesg db_ipcs; /* For requesting gtmsecshr to update ipc fields */
GBLDEF gd_region *ftok_sem_reg = NULL; /* Last region for which ftok semaphore is grabbed */
GBLDEF int gtm_non_blocked_write_retries; /* number of retries for non-blocked write to pipe */
#endif
#ifdef VMS
/* Following global variables store the state of an erroring sys$qio just before a GTMASSERT in the CHECK_CHANNEL_STATUS macro */
GBLDEF uint4 check_channel_status = 0; /* stores the qio return status */
GBLDEF uint4 check_channel_id = 0; /* stores the qio channel id */
#endif
GBLDEF boolean_t write_after_image = FALSE; /* true for after-image jnlrecord writing by recover/rollback */
GBLDEF int iott_write_error;
GBLDEF int4 write_filter;
GBLDEF boolean_t need_no_standalone = FALSE;
GBLDEF int4 zdir_form = ZDIR_FORM_FULLPATH; /* $ZDIR shows full path including DEVICE and DIRECTORY */
GBLDEF mval dollar_zdir = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0);
GBLDEF int * volatile var_on_cstack_ptr = NULL; /* volatile pointer to int; volatile so that nothing gets optimized out */
GBLDEF hash_table_int4 cw_stagnate;
GBLDEF boolean_t cw_stagnate_reinitialized = FALSE;
GBLDEF uint4 pat_everything[] = { 0, 2, PATM_E, 1, 0, PAT_MAX_REPEAT, 0, PAT_MAX_REPEAT, 1 }; /* pattern = ".e" */
GBLDEF mstr_len_t sizeof_pat_everything = SIZEOF(pat_everything);
GBLDEF uint4 *pattern_typemask;
GBLDEF pattern *pattern_list;
GBLDEF pattern *curr_pattern;
/* Unicode related data */
GBLDEF boolean_t gtm_utf8_mode; /* Is GT.M running with Unicode Character Set; Set only after ICU initialization */
GBLDEF boolean_t is_gtm_chset_utf8; /* Is gtm_chset environment variable set to UTF8 */
GBLDEF boolean_t utf8_patnumeric; /* Should patcode N match non-ASCII numbers in pattern match ? */
GBLDEF boolean_t badchar_inhibit = FALSE;/* Suppress malformed UTF-8 characters by default */
GBLDEF MSTR_DEF(dollar_zchset, 1, "M");
GBLDEF MSTR_DEF(dollar_zpatnumeric, 1, "M");
/* Standard MUMPS pattern-match table.
* This table holds the current pattern-matching attributes of each ASCII character.
* Bits 0..23 of each entry correspond with the pattern-match characters, A..X.
*/
GBLDEF pattern mumps_pattern = {
(void *) 0, /* flink */
(void *) 0, /* typemask */
(void *) 0, /* pat YZ name array */
(void *) 0, /* pat YZ name-length array */
-1, /* number of YZ patcodes */
1, /* namlen */
{'M', '\0'} /* name */
};
/* mapbit is used by pattab.c and patstr.c. Note that patstr.c uses only entries until PATM_X */
GBLDEF readonly uint4 mapbit[] =
{
PATM_A, PATM_B, PATM_C, PATM_D, PATM_E, PATM_F, PATM_G, PATM_H,
PATM_I, PATM_J, PATM_K, PATM_L, PATM_M, PATM_N, PATM_O, PATM_P,
PATM_Q, PATM_R, PATM_S, PATM_T, PATM_U, PATM_V, PATM_W, PATM_X,
PATM_YZ1, PATM_YZ2, PATM_YZ3, PATM_YZ4
};
LITDEF uint4 typemask[PATENTS] =
{
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 00-07 : ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 08-0F : ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 10-17 : ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 18-1F : ASCII characters */
PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex 20-27 : ASCII characters */
PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex 28-2F : ASCII characters */
PATM_N, PATM_N, PATM_N, PATM_N, PATM_N, PATM_N, PATM_N, PATM_N, /* hex 30-37 : ASCII characters */
PATM_N, PATM_N, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex 38-3F : ASCII characters */
PATM_P, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex 40-47 : ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex 48-4F : ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex 50-57 : ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex 58-5F : ASCII characters */
PATM_P, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex 60-67 : ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex 68-6F : ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex 70-77 : ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_P, PATM_P, PATM_P, PATM_P, PATM_C, /* hex 78-7F : ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 80-87 : non-ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 88-8F : non-ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 90-97 : non-ASCII characters */
PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, PATM_C, /* hex 98-9F : non-ASCII characters */
PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex A0-A7 : non-ASCII characters */
PATM_P, PATM_P, PATM_L, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex A8-AF : non-ASCII characters */
PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex B0-B7 : non-ASCII characters */
PATM_P, PATM_P, PATM_L, PATM_P, PATM_P, PATM_P, PATM_P, PATM_P, /* hex B8-BF : non-ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex C0-C7 : non-ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex C8-CF : non-ASCII characters */
PATM_P, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, /* hex D0-D7 : non-ASCII characters */
PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_U, PATM_P, PATM_L, /* hex D8-DF : non-ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex E0-E7 : non-ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex E8-EF : non-ASCII characters */
PATM_P, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, /* hex F0-F7 : non-ASCII characters */
PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_L, PATM_P, PATM_C /* hex F8-FF : non-ASCII characters */
};
GBLDEF uint4 pat_allmaskbits; /* universal set of valid pattern bit codes for currently active pattern table */
/* globals related to caching of pattern evaluation match result.
* for a given <strptr, strlen, patptr, depth> tuple, we store the evaluation result.
* in the above,
* <strptr, strlen> uniquely identifies a substring of the input string.
* <patptr> identifies the pattern atom that we are matching with
* <depth> identifies the recursion depth of do_patalt() for this pattern atom ("repcnt" in code)
* note that <depth> is a necessity in the above because the same alternation pattern atom can have different
* match or not-match status for the same input string depending on the repetition count usage of the pattern atom
* after a series of thoughts on an efficient structure for storing pattern evaluation, finally arrived at a simple
* array of structures wherein for a given length (strlen) we have a fixed number of structures available.
* we allocate an array of structures, say, 1024 structures.
* this is a simple 1-1 mapping, wherein
* for length 0, the available structures are the first 32 structures of the array,
* for length 1, the available structures are the second 32 structures of the array.
* ...
* for length 47, the available structures are the 47th 32 structures of the array.
* for length 48 and above, the available structures are all the remaining structures of the array.
* whenever any new entry needs to be cached and there is no room among the available structures, we preempt the
* most unfrequently used cache entry (to do this we do keep a count of every entry's frequency of usage)
* the assumption is that substrings of length > 48 (an arbitrary reasonable small number) won't be used
* so frequently so that they have lesser entries to fight for among themselves than lower values of length.
* with the above caching in place, the program segment below took 15 seconds.
* it was found that if the array size is increased to 16384 (as opposed to 1024 as above) and the available
* structures for each length increased proportionally (i.e. 16 times = 16*32 structures instead of 32 as above)
* the performance improved to the extent of taking 3 seconds.
* but this raised an interesting question, that of "size" vs. "time" tradeoff.
* with increasing array size, we get better "time" performance due to better caching.
* but that has an overhead of increased "size" (memory) usage.
* to arrive at a compromise, a dynamic algorithm emerged. the process will allocate a small array
* beginning at 1024 entries and grow to a max of 16384 entries as and when it deems the hit ratio is not good.
* the array only grows, i.e. there is no downsizing algorithm at play.
* the dynamic algorithm addresses to an extent both the "size" and "time" issues and finishes the below in 1 second.
* #defines for the dynamic algorithm growth can be found in patcode.h
*/
GBLDEF int4 curalt_depth = -1; /* depth of alternation nesting */
GBLDEF int4 do_patalt_calls[PTE_MAX_CURALT_DEPTH]; /* number of calls to do_patalt() */
GBLDEF int4 do_patalt_hits[PTE_MAX_CURALT_DEPTH]; /* number of pte_csh hits in do_patalt() */
GBLDEF int4 do_patalt_maxed_out[PTE_MAX_CURALT_DEPTH]; /* no. of pte_csh misses after maxing on allocation size */
GBLDEF pte_csh *pte_csh_array[PTE_MAX_CURALT_DEPTH]; /* pte_csh array (per curalt_depth) */
GBLDEF int4 pte_csh_cur_size[PTE_MAX_CURALT_DEPTH]; /* current pte_csh size (per curalt_depth) */
GBLDEF int4 pte_csh_alloc_size[PTE_MAX_CURALT_DEPTH]; /* current allocated pte_csh size (per curalt_depth) */
GBLDEF int4 pte_csh_entries_per_len[PTE_MAX_CURALT_DEPTH]; /* current number of entries per len */
GBLDEF int4 pte_csh_tail_count[PTE_MAX_CURALT_DEPTH]; /* count of non 1-1 corresponding pte_csh_array members */
GBLDEF pte_csh *cur_pte_csh_array; /* copy of pte_csh_array corresponding to curalt_depth */
GBLDEF int4 cur_pte_csh_size; /* copy of pte_csh_cur_size corresponding to curalt_depth */
GBLDEF int4 cur_pte_csh_entries_per_len; /* copy of pte_csh_entries_per_len corresponding to curalt_depth */
GBLDEF int4 cur_pte_csh_tail_count; /* copy of pte_csh_tail_count corresponding to curalt_depth */
GBLDEF readonly char *before_image_lit[] = {"NOBEFORE_IMAGES", "BEFORE_IMAGES"};
GBLDEF readonly char *jnl_state_lit[] = {"DISABLED", "OFF", "ON"};
GBLDEF readonly char *repl_state_lit[] = {"OFF", "ON", "WAS_ON"};
GBLDEF boolean_t crit_sleep_expired; /* mutex.mar: signals that a timer waiting for crit has expired */
GBLDEF uint4 crit_deadlock_check_cycle; /* compared to csa->crit_check_cycle to determine if a given region
in a transaction legitimately has crit or not */
GBLDEF node_local_ptr_t locknl; /* if non-NULL, indicates node-local of interest to the LOCK_HIST macro */
GBLDEF boolean_t in_mutex_deadlock_check; /* if TRUE, mutex_deadlock_check() is part of our current C-stack trace */
/* $ECODE and $STACK related variables.
* error_frame and skip_error_ret should ideally be part of dollar_ecode structure. since sr_avms/opp_ret.m64 uses these
* global variables and it was felt risky changing it to access a member of a structure, they are kept as separate globals */
GBLDEF stack_frame *error_frame; /* ptr to frame where last error occurred or was rethrown */
GBLDEF boolean_t skip_error_ret; /* set to TRUE by golevel(), used and reset by op_unwind() */
GBLDEF dollar_ecode_type dollar_ecode; /* structure containing $ECODE related information */
GBLDEF dollar_stack_type dollar_stack; /* structure containing $STACK related information */
GBLDEF boolean_t ztrap_explicit_null; /* whether $ZTRAP was explicitly set to NULL in the current frame */
GBLDEF int4 gtm_object_size; /* Size of entire gtm object for compiler use */
GBLDEF int4 linkage_size; /* Size of linkage section during compile */
GBLDEF uint4 lnkrel_cnt; /* number of entries in linkage Psect to relocate */
GBLDEF int4 sym_table_size; /* size of the symbol table during compilation */
GBLDEF boolean_t stop_non_mandatory_expansion, non_mandatory_expansion; /* Used in stringpool managment */
GBLDEF jnl_fence_control jnl_fence_ctl;
GBLDEF jnl_process_vector *prc_vec = NULL; /* for current process */
GBLDEF jnl_process_vector *originator_prc_vec = NULL; /* for client/originator */
LITDEF char *jrt_label[JRT_RECTYPES] =
{
#define JNL_TABLE_ENTRY(rectype, extract_rtn, label, update, fixed_size, is_replicated) label,
#include "jnl_rec_table.h" /* BYPASSOK */
#undef JNL_TABLE_ENTRY
};
LITDEF int jrt_update[JRT_RECTYPES] =
{
#define JNL_TABLE_ENTRY(rectype, extract_rtn, label, update, fixed_size, is_replicated) update,
#include "jnl_rec_table.h" /* BYPASSOK */
#undef JNL_TABLE_ENTRY
};
LITDEF boolean_t jrt_fixed_size[JRT_RECTYPES] =
{
#define JNL_TABLE_ENTRY(rectype, extract_rtn, label, update, fixed_size, is_replicated) fixed_size,
#include "jnl_rec_table.h" /* BYPASSOK */
#undef JNL_TABLE_ENTRY
};
LITDEF boolean_t jrt_is_replicated[JRT_RECTYPES] =
{
#define JNL_TABLE_ENTRY(rectype, extract_rtn, label, update, fixed_size, is_replicated) is_replicated,
#include "jnl_rec_table.h" /* BYPASSOK */
#undef JNL_TABLE_ENTRY
};
/* Change the initialization if struct_jrec_tcom in jnl.h changes */
GBLDEF struct_jrec_tcom tcom_record = {{JRT_TCOM, TCOM_RECLEN, 0, 0, 0},
0, 0, 0, 0, "", {TCOM_RECLEN, JNL_REC_SUFFIX_CODE}};
GBLDEF jnl_gbls_t jgbl;
GBLDEF short crash_count;
GBLDEF trans_num start_tn;
GBLDEF cw_set_element cw_set[CDB_CW_SET_SIZE];
GBLDEF unsigned char cw_set_depth, cw_map_depth;
GBLDEF unsigned int t_tries;
GBLDEF uint4 t_err;
GBLDEF uint4 update_trans; /* Bitmask indicating among other things whether this region was updated;
* See gdsfhead.h for UPDTRNS_* bitmasks
* Bit-0 is 1 if cw_set_depth is non-zero or if it is a duplicate set
* (cw_set_depth is zero in that case).
* Bit-1 is unused for non-TP.
* Bit-2 is 1 if transaction commit in this region is beyond point of rollback.
*/
GBLDEF boolean_t is_uchar_wcs_code[] = /* uppercase failure codes that imply database cache related problem */
{ /* if any of the following failure codes are seen in the final retry, wc_blocked will be set to trigger cache recovery */
#define CDB_SC_NUM_ENTRY(code, value)
#define CDB_SC_UCHAR_ENTRY(code, is_wcs_code, value) is_wcs_code,
#define CDB_SC_LCHAR_ENTRY(code, is_wcs_code, value)
#include "cdb_sc_table.h" /* BYPASSOK */
#undef CDB_SC_NUM_ENTRY
#undef CDB_SC_UCHAR_ENTRY
#undef CDB_SC_LCHAR_ENTRY
};
GBLDEF boolean_t is_lchar_wcs_code[] = /* lowercase failure codes that imply database cache related problem */
{ /* if any of the following failure codes are seen in the final retry, wc_blocked will be set to trigger cache recovery */
#define CDB_SC_NUM_ENTRY(code, value)
#define CDB_SC_UCHAR_ENTRY(code, is_wcs_code, value)
#define CDB_SC_LCHAR_ENTRY(code, is_wcs_code, value) is_wcs_code,
#include "cdb_sc_table.h" /* BYPASSOK */
#undef CDB_SC_NUM_ENTRY
#undef CDB_SC_UCHAR_ENTRY
#undef CDB_SC_LCHAR_ENTRY
};
GBLDEF boolean_t gvdupsetnoop = TRUE; /* if TRUE, duplicate SETs do not change GDS block (and therefore no PBLK journal
* records will be written) although the database transaction number will be
* incremented and logical SET journal records will be written. By default, this
* behavior is turned ON. GT.M has a way of turning it off with a VIEW command.
*/
GBLDEF boolean_t gtm_fullblockwrites; /* Do full (not partial) database block writes T/F */
UNIX_ONLY(GBLDEF int4 gtm_shmflags;) /* Extra flags for shmat */
#ifdef VMS
GBLDEF uint4 gtm_memory_noaccess_defined; /* count of the number of GTM_MEMORY_NOACCESS_ADDR logicals which are defined */
GBLDEF uint4 gtm_memory_noaccess[GTM_MEMORY_NOACCESS_COUNT]; /* see VMS gtm_env_init_sp.c */
#endif
GBLDEF volatile boolean_t in_wcs_recover = FALSE; /* TRUE if in "wcs_recover", used by "bt_put" and "generic_exit_handler" */
GBLDEF boolean_t in_gvcst_incr = FALSE; /* set to TRUE by gvcst_incr, set to FALSE by gvcst_put
* distinguishes to gvcst_put, if the current db operation is a SET or $INCR */
GBLDEF mval *post_incr_mval; /* mval pointing to the post-$INCR value */
GBLDEF mval increment_delta_mval; /* mval holding the INTEGER increment value, set by gvcst_incr,
* used by gvcst_put/gvincr_recompute_upd_array which is invoked by t_end */
GBLDEF boolean_t is_dollar_incr = FALSE; /* valid only if gvcst_put is in the call-stack (i.e. t_err == ERR_GVPUTFAIL);
* is a copy of "in_gvcst_incr" just before it got reset to FALSE */
GBLDEF int indir_cache_mem_size; /* Amount of memory currently in use by indirect cache */
GBLDEF hash_table_objcode cache_table;
GBLDEF int cache_hits, cache_fails;
/* The alignment feature is disabled due to some issues in stringpool garbage collection.
* TODO: When we sort out stringpool issues, change mstr_native_align to TRUE below */
GBLDEF boolean_t mstr_native_align = FALSE;
GBLDEF boolean_t save_mstr_native_align;
GBLDEF mvar *mvartab;
GBLDEF mvax *mvaxtab,*mvaxtab_end;
GBLDEF mlabel *mlabtab;
GBLDEF mline mline_root;
GBLDEF mline *mline_tail;
GBLDEF short int block_level;
GBLDEF triple t_orig;
GBLDEF int mvmax, mlmax, mlitmax;
static char routine_name_buff[SIZEOF(mident_fixed)], module_name_buff[SIZEOF(mident_fixed)];
static char int_module_name_buff[SIZEOF(mident_fixed)];
GBLDEF MIDENT_DEF(routine_name, 0, &routine_name_buff[0]);
GBLDEF MIDENT_DEF(module_name, 0, &module_name_buff[0]);
GBLDEF MIDENT_DEF(int_module_name, 0, &int_module_name_buff[0]);
GBLDEF char rev_time_buf[REV_TIME_BUFF_LEN];
GBLDEF unsigned short source_name_len;
GBLDEF short object_name_len;
UNIX_ONLY(
GBLDEF unsigned char source_file_name[MAX_FBUFF + 1];
GBLDEF unsigned char object_file_name[MAX_FBUFF + 1];
GBLDEF int object_file_des;
)
VMS_ONLY(
GBLDEF char source_file_name[PATH_MAX];
GBLDEF char object_file_name[256];
GBLDEF struct FAB obj_fab; /* file access block for the object file */
)
GBLDEF int4 curr_addr, code_size;
GBLDEF mident_fixed zlink_mname;
GBLDEF sm_uc_ptr_t reformat_buffer;
GBLDEF int reformat_buffer_len;
GBLDEF volatile int reformat_buffer_in_use; /* used only in DEBUG mode */
GBLDEF boolean_t mu_reorg_upgrd_dwngrd_in_prog; /* TRUE if MUPIP REORG UPGRADE/DOWNGRADE is in progress */
GBLDEF boolean_t mu_reorg_nosafejnl; /* TRUE if NOSAFEJNL explicitly specified */
GBLDEF trans_num mu_reorg_upgrd_dwngrd_blktn; /* tn in blkhdr of current block processed by MUPIP REORG {UP,DOWN}GRADE */
GBLDEF inctn_opcode_t inctn_opcode = inctn_invalid_op;
GBLDEF inctn_detail_t inctn_detail; /* holds detail to fill in to inctn jnl record */
GBLDEF uint4 region_open_count; /* Number of region "opens" we have executed */
GBLDEF uint4 gtm_blkupgrade_flag = UPGRADE_IF_NEEDED; /* by default upgrade only if necessary */
GBLDEF boolean_t disk_blk_read;
GBLDEF boolean_t gtm_dbfilext_syslog_disable = FALSE; /* by default, log every file extension message */
GBLDEF int4 cws_reorg_remove_index; /* see mu_swap_blk.c for comments on the need for these two */
GBLDEF block_id cws_reorg_remove_array[CWS_REORG_REMOVE_ARRAYSIZE];
GBLDEF uint4 log_interval;
#ifdef UNIX
GBLDEF uint4 gtm_principal_editing_defaults; /* ext_cap flags if tt */
GBLDEF boolean_t in_repl_inst_edit = FALSE; /* used by an assert in repl_inst_read/repl_inst_write */
GBLDEF boolean_t in_repl_inst_create; /* used by repl_inst_read/repl_inst_write */
GBLDEF boolean_t holds_sem[NUM_SEM_SETS][NUM_SRC_SEMS]; /* whether a particular replication semaphore is being held
* by the current process or not. */
GBLDEF boolean_t detail_specified; /* Set to TRUE if -DETAIL is specified in MUPIP REPLIC -JNLPOOL or -EDITINST */
GBLDEF boolean_t in_mupip_ftok; /* Used by an assert in repl_inst_read */
GBLDEF uint4 section_offset; /* Used by PRINT_OFFSET_PREFIX macro in repl_inst_dump.c */
GBLDEF uint4 mutex_per_process_init_pid; /* pid that invoked "mutex_per_process_init" */
GBLDEF boolean_t gtm_quiet_halt; /* Suppress FORCEDHALT message */
#endif
#ifdef UNICODE_SUPPORTED
/* Unicode line terminators. In addition to the following
* codepoints, the sequence CR LF is considered a single
* line terminator.
*/
LITDEF UChar32 u32_line_term[] =
{
0x000A, /* Line Feed */
0x000D, /* Carraige Return */
0x0085, /* Next Line - EBCDIC mostly */
0x000C, /* Form Feed */
UTF_LINE_SEPARATOR, /* Line Separator */
UTF_PARA_SEPARATOR, /* Paragraph Separator */
0x0000
};
/* Given the first byte in a UTF-8 representation, the following array returns the total number of bytes in the encoding
* 00-7F : 1 byte
* C2-DF : 2 bytes
* E0-EF : 3 bytes
* F0-F4 : 4 bytes
* All others: 1 byte
* For details on the UTF-8 encoding see gtm_utf8.h
*/
LITDEF unsigned int utf8_bytelen[] =
{
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 00-1F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 20-3F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 40-5F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 60-7F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 80-9F */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* A0-BF */
1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /* C0-DF */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* E0-FF */
};
/* Given the first byte in a UTF-8 representation, the following array returns the number of bytes to follow
* 00-7F : 0 byte
* C2-DF : 1 byte
* E0-EF : 2 bytes
* F0-F4 : 3 bytes
* All others: -1 bytes
* For details on the UTF-8 encoding see gtm_utf8.h
*/
LITDEF signed int utf8_followlen[] =
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 00-1F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 20-3F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 40-5F */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 60-7F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* 80-9F */
-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* A0-BF */
-1,-1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* C0-DF */
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, /* E0-FF */
};
GBLDEF gtm_wcswidth_fnptr_t gtm_wcswidth_fnptr; /* see comment in gtm_utf8.h about this typedef */
#endif
GBLDEF uint4 gtm_max_sockets; /* Maximum sockets per socket device supported by this process */
GBLDEF d_socket_struct *newdsocket; /* Commonly used temp socket area */
GBLDEF boolean_t dse_all_dump; /* TRUE if DSE ALL -DUMP is specified */
GBLDEF int socketus_interruptus; /* How many times socket reads have been interrutped */
GBLDEF int4 pending_errtriplecode; /* if non-zero contains the error code to invoke ins_errtriple with */
GBLDEF uint4 process_id;
GBLDEF uint4 image_count; /* not used in UNIX but defined to preserve VMS compatibility */
GBLDEF size_t totalRmalloc; /* Total storage currently (real) malloc'd (includes extent blocks) */
GBLDEF size_t totalAlloc; /* Total allocated (includes allocation overhead but not free space */
GBLDEF size_t totalUsed; /* Sum of user allocated portions (totalAlloc - overhead) */
GBLDEF size_t totalRallocGta; /* Total storage currently (real) mmap alloc'd */
GBLDEF size_t totalAllocGta; /* Total mmap allocated (includes allocation overhead but not free space */
GBLDEF size_t totalUsedGta; /* Sum of "in-use" portions (totalAllocGta - overhead) */
GBLDEF volatile char *outOfMemoryMitigation; /* Cache that we will freed to help cleanup if run out of memory */
GBLDEF uint4 outOfMemoryMitigateSize;/* Size of above cache (in Kbytes) */
GBLDEF int mcavail;
GBLDEF mcalloc_hdr *mcavailptr, *mcavailbase;
GBLDEF uint4 max_cache_memsize; /* Maximum bytes used for indirect cache object code */
GBLDEF uint4 max_cache_entries; /* Maximum number of cached indirect compilations */
GBLDEF void (*cache_table_relobjs)(void); /* Function pointer to call cache_table_rebuild() */
UNIX_ONLY(GBLDEF ch_ret_type (*ht_rhash_ch)()); /* Function pointer to hashtab_rehash_ch */
UNIX_ONLY(GBLDEF ch_ret_type (*jbxm_dump_ch)()); /* Function pointer to jobexam_dump_ch */
#ifdef VMS
GBLDEF boolean_t tp_has_kill_t_cse; /* cse->mode of kill_t_write or kill_t_create got created in this transaction */
#endif
GBLDEF cache_rec_ptr_t pin_fail_cr; /* Pointer to the cache-record that we failed while pinning */
GBLDEF cache_rec pin_fail_cr_contents; /* Contents of the cache-record that we failed while pinning */
GBLDEF cache_rec_ptr_t pin_fail_twin_cr; /* Pointer to twin of the cache-record that we failed to pin */
GBLDEF cache_rec pin_fail_twin_cr_contents; /* Contents of twin of the cache-record that we failed to pin */
GBLDEF bt_rec_ptr_t pin_fail_bt; /* Pointer to bt of the cache-record that we failed to pin */
GBLDEF bt_rec pin_fail_bt_contents; /* Contents of bt of the cache-record that we failed to pin */
GBLDEF int4 pin_fail_in_crit; /* Holder of crit at the time we failed to pin */
GBLDEF int4 pin_fail_wc_in_free; /* Number of write cache records in free queue when we failed to pin */
GBLDEF int4 pin_fail_wcs_active_lvl; /* Number of entries in active queue when we failed to pin */
GBLDEF int4 pin_fail_ref_cnt; /* Reference count when we failed to pin */
GBLDEF int4 pin_fail_in_wtstart; /* Count of processes in wcs_wtstart when we failed to pin */
GBLDEF int4 pin_fail_phase2_commit_pidcnt; /* Number of processes in phase2 commit when we failed to pin */
GBLDEF zwr_hash_table *zwrhtab; /* How we track aliases during zwrites */
GBLDEF uint4 zwrtacindx; /* When creating $ZWRTACxxx vars for ZWRite, this holds xxx */
GBLDEF uint4 tstartcycle; /* lv_val cycle for tstart operations */
GBLDEF uint4 lvtaskcycle; /* lv_val cycle for misc lv_val related tasks */
GBLDEF int4 SPGC_since_LVGC; /* stringpool GCs since the last lv_val GC */
GBLDEF int4 LVGC_interval = MIN_SPGC_PER_LVGC; /* dead data GC is done every LVGC_interval stringpool GCs */
GBLDEF lv_xnew_var *xnewvar_anchor; /* Anchor for unused lv_xnew_var blocks */
GBLDEF lv_xnew_ref *xnewref_anchor; /* Anchor for unused lv_xnew_ref blocks */
GBLDEF mval *alias_retarg; /* Points to an alias return arg created by a "QUIT *" recorded here so
* symtab-unwind logic can find it and modify it if necessary if a
* symtab popped during the return and the retarg points to an lv_val
* that is going to be destroyed.
*/
#ifdef DEBUG_ALIAS
GBLDEF boolean_t lvmon_enabled; /* Enable lv_val monitoring */
#endif
GBLDEF block_id gtm_tp_allocation_clue; /* block# hint to start allocation for created blocks in TP */
#ifdef UNIX
GBLDEF int4 gtm_zlib_cmp_level; /* zlib compression level specified at process startup */
GBLDEF int4 repl_zlib_cmp_level; /* zlib compression level currently in use in replication pipe.
* This is a source-server specific variable and is non-zero only
* if compression is enabled and works in the receiver server as well.
*/
GBLDEF zlib_cmp_func_t zlib_compress_fnptr;
GBLDEF zlib_uncmp_func_t zlib_uncompress_fnptr;
#endif
GBLDEF mlk_stats_t mlk_stats; /* Process-private M-lock statistics */
#ifdef UNIX
/* Initialized blockalrm and block_sigsent can be used by all */
GBLDEF boolean_t blocksig_initialized = FALSE; /* set to TRUE when blockalrm and block_sigsent are initialized */
GBLDEF sigset_t blockalrm;
GBLDEF sigset_t block_sigsent; /* block all signals that can be sent externally
(SIGINT, SIGQUIT, SIGTERM, SIGTSTP, SIGCONT) */
GBLDEF char *gtm_core_file;
GBLDEF char *gtm_core_putenv;
#endif
#ifdef __MVS__
GBLDEF char *gtm_utf8_locale_object;
GBLDEF boolean_t gtm_tag_utf8_as_ascii = TRUE;
#endif
#ifdef GTM_CRYPT
GBLDEF int4 gtmcrypt_init_state; /* Represents the various states of encryption library */
GBLDEF int4 gbl_encryption_ecode;
GBLDEF char dl_err[MAX_ERRSTR_LEN];
GBLDEF gtmcrypt_init_t gtmcrypt_init_fnptr;
GBLDEF gtmcrypt_close_t gtmcrypt_close_fnptr;
GBLDEF gtmcrypt_hash_gen_t gtmcrypt_hash_gen_fnptr;
GBLDEF gtmcrypt_encode_t gtmcrypt_encode_fnptr;
GBLDEF gtmcrypt_decode_t gtmcrypt_decode_fnptr;
GBLDEF gtmcrypt_getkey_by_hash_t gtmcrypt_getkey_by_hash_fnptr;
GBLDEF gtmcrypt_getkey_by_name_t gtmcrypt_getkey_by_name_fnptr;
GBLDEF gtmcrypt_strerror_t gtmcrypt_strerror_fnptr;
#endif /* GTM_CRYPT */
#ifdef DEBUG
/* Following definitions are related to white_box testing */
GBLDEF boolean_t gtm_white_box_test_case_enabled = FALSE;
GBLDEF int gtm_white_box_test_case_number = 0;
GBLDEF int gtm_white_box_test_case_count = 0;
GBLDEF int gtm_wbox_input_test_case_count = 0; /* VMS allows maximum 31 characters for external identifer */
GBLDEF boolean_t stringpool_unusable = FALSE; /* Set to TRUE by any function that does not expect any of its function
* callgraph to use/expand the stringpool. */
GBLDEF boolean_t stringpool_unexpandable = FALSE;/* Set to TRUE by any function for a small period when it has ensured
* enough space in the stringpool so it does not expect any more garbage
* collections or expansions.
*/
GBLDEF boolean_t donot_INVOKE_MUMTSTART = FALSE; /* Set to TRUE whenever an implicit TSTART is done in gvcst_put/kill as
* part of an explicit + trigger update. In this situation, we dont expect
* MUM_TSTART macro to be invoked at all (see skip_INVOKE_RESTART below
* for description on why this is needed). So we keep this debug-only
* flag turned on throughout the gvcst_put/kill. An assert in
* mdb_condition_handler (invoked by INVOKE_RESTART macro when it does
* an rts_error) checks it never gets invoked while this is set.
*/
#endif
GBLDEF boolean_t block_is_free; /* Set to TRUE if the caller wants to let t_qread know that the block it is
* attempting to read is actually a FREE block
*/
GBLDEF int4 gv_keysize;
GBLDEF gd_addr *gd_header;
GBLDEF gd_binding *gd_map;
GBLDEF gd_binding *gd_map_top;
#ifdef GTM_TRIGGER
GBLDEF int4 gtm_trigger_depth; /* 0 if no trigger, 1 if inside trigger; 2 if inside nested trigger etc. */
GBLDEF int4 tstart_trigger_depth; /* gtm_trigger_depth at the time of the outermost "op_tstart"
* (i.e. explicit update). This should be used only if dollar_tlevel
* is non-zero as it is not otherwise maintained.
*/
GBLDEF uint4 trigger_name_cntr; /* Counter from which trigger names are constructed */
GBLDEF boolean_t *ztvalue_changed_ptr; /* -> boolean in current gtm_trigger_parms signaling if ztvalue has
been updated */
GBLDEF boolean_t ztwormhole_used; /* TRUE if $ztwormhole was used by trigger code */
GBLDEF mstr *dollar_ztname;
GBLDEF mval *dollar_ztdata,
*dollar_ztoldval,
*dollar_ztriggerop,
*dollar_ztupdate,
*dollar_ztvalue,
dollar_ztwormhole = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0),
dollar_ztslate = DEFINE_MVAL_STRING(MV_STR, 0, 0, 0, NULL, 0, 0),
gtm_trigger_etrap; /* Holds $ETRAP value for inside trigger */
GBLDEF int tprestart_state; /* When triggers restart, multiple states possible. See tp_restart.h */
GBLDEF boolean_t skip_INVOKE_RESTART = FALSE; /* set to TRUE if caller of op_tcommit/t_retry does not want it to
* use the INVOKE_RESTART macro (which uses an rts_error to trigger
* the restart) instead return code. The reason we dont want to do
* rts_error is that this is an implicit tstart situation where we
* did not do opp_tstart.s so we dont want control to be transferred
* using the MUM_TSTART macro by mdb_condition_handler (which assumes
* opp_tstart.s invocation).
*/
GBLDEF boolean_t goframes_unwound_trigger; /* goframes() unwound a trigger base frame during its unwinds */
GBLDEF symval *trigr_symval_list; /* List of availalable symvals for use in (nested) triggers */
GBLDEF boolean_t dollar_ztrigger_invoked; /* $ZTRIGGER() was invoked on at least one region in this transaction */
# ifdef DEBUG
GBLDEF gv_trigger_t *gtm_trigdsc_last; /* For debugging purposes - parms gtm_trigger called with */
GBLDEF gtm_trigger_parms *gtm_trigprm_last;
GBLDEF ch_ret_type (*ch_at_trigger_init)(); /* Condition handler in effect when gtm_trigger called */
# endif
GBLDEF boolean_t explicit_update_repl_state; /* Initialized just before an explicit update invokes any triggers.
* Set to 1 if triggering update is to a replicated database.
* Set to 0 if triggering update is to a non-replicated database.
* Value stays untouched across nested trigger invocations.
*/
#endif
GBLDEF boolean_t skip_dbtriggers = FALSE; /* Set to FALSE by default (i.e. triggers are invoked). Set to TRUE
* unconditionally by MUPIP LOAD as it always skips triggers. Also set
* to TRUE by journal recovery/update-process only when they encounter
* updates done by MUPIP LOAD so they too skip trigger processing. In the
* case of update process, this keeps primary/secondary in sync. In the
* case of journal recovery, this keeps the db and jnl in sync.
*/
GBLDEF boolean_t expansion_failed; /* used by string pool when trying to expand */
GBLDEF boolean_t retry_if_expansion_fails; /* used by string pool when trying to expand */
GBLDEF boolean_t mupip_exit_status_displayed; /* TRUE if mupip_exit has already displayed a message for non-zero status.
* Used by mur_close_files to ensure some message gets printed in case
* of abnormal exit status (in some cases mupip_exit might not have been
* invoked but we will still go through mur_close_files e.g. if exit is
* done directly without invoking mupip_exit).
*/
GBLDEF boolean_t implicit_trollback = FALSE; /* Set to TRUE by OP_TROLLBACK macro before calling op_trollback. Set
* to FALSE by op_trollback. Used to indicate op_trollback as to
* whether it is being called from generated code (opp_trollback.s)
* or from C runtime code.
*/
#ifdef DEBUG
GBLDEF boolean_t ok_to_UNWIND_in_exit_handling; /* see gtm_exit_handler.c for comments */
GBLDEF boolean_t skip_block_chain_tail_check;
GBLDEF boolean_t in_mu_rndwn_file; /* TRUE if we are in mu_rndwn_file (holding standalone access) */
#endif
GBLDEF char gvcst_search_clue;
#ifdef UNIX
/* The following are replication related global variables. Ideally if we had a repl_gbls_t structure (like jnl_gbls_t)
* this would be a member in that. But since we dont have one and since we need to initialize this specificially to a
* non-zero value (whereas usually everything else accepts a 0 default value), this is better kept as a separate global
* variable instead of inside a global variable structure.
*/
GBLDEF int4 strm_index = INVALID_SUPPL_STRM;
/* # of the supplementary stream if one exists.
* If this process is an update process running on a supplementary
* replication instance and the journal pool allows updates (that
* is the instance was started as a root primary), the value of
* this variable will be anywhere from 1 to 15 once the receiver
* establishes connection with a non-supplementary source server.
* If this process is a mumps process running on a supplementary
* replication instance and the journal pool allows updates (that
* is the instance was started as a root primary), the value of
* this variable will be 0 to indicate this is the local stream.
* Otherwise, this variable is set to -1 (INVALID_SUPPL_STRM)
* This variable is used by t_end/tp_tend to determine if strm_seqno
* field in the journal record needs to be filled in or not.
* It is filled in only if this variable is 0 to 15.
*/
GBLDEF repl_conn_info_t *this_side, *remote_side;
/* Replication related global variables END */
GBLDEF seq_num gtmsource_save_read_jnl_seqno;
GBLDEF gtmsource_state_t gtmsource_state = GTMSOURCE_DUMMY_STATE;
#endif
GBLDEF boolean_t gv_play_duplicate_kills; /* A TRUE value implies KILLs of non-existent nodes will continue to
* write jnl records and increment the db curr_tn even though they dont
* touch any GDS blocks in the db (i.e. treat it as a duplicate kill).
* Set to TRUE for the update process & journal recovery currently.
* Set to FALSE otherwise.
*/
GBLDEF boolean_t donot_fflush_NULL = FALSE; /* Set to TRUE whenever we dont want gtm_putmsg to fflush(NULL). BYPASSOK
* As of Jan 2012, mu_rndwn_all is the only user of this functionality.
*/
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