tcl_log.c
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:14k
- /*-
- * See the file LICENSE for redistribution information.
- *
- * Copyright (c) 1999-2002
- * Sleepycat Software. All rights reserved.
- */
- #include "db_config.h"
- #ifndef lint
- static const char revid[] = "$Id: tcl_log.c,v 11.52 2002/08/14 20:11:57 bostic Exp $";
- #endif /* not lint */
- #ifndef NO_SYSTEM_INCLUDES
- #include <sys/types.h>
- #include <stdlib.h>
- #include <string.h>
- #include <tcl.h>
- #endif
- #include "db_int.h"
- #include "dbinc/log.h"
- #include "dbinc/tcl_db.h"
- #include "dbinc/txn.h"
- #ifdef CONFIG_TEST
- static int tcl_LogcGet __P((Tcl_Interp *, int, Tcl_Obj * CONST*, DB_LOGC *));
- /*
- * tcl_LogArchive --
- *
- * PUBLIC: int tcl_LogArchive __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogArchive(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- static char *archopts[] = {
- "-arch_abs", "-arch_data", "-arch_log",
- NULL
- };
- enum archopts {
- ARCH_ABS, ARCH_DATA, ARCH_LOG
- };
- Tcl_Obj *fileobj, *res;
- u_int32_t flag;
- int i, optindex, result, ret;
- char **file, **list;
- result = TCL_OK;
- flag = 0;
- /*
- * Get the flag index from the object based on the options
- * defined above.
- */
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i],
- archopts, "option", TCL_EXACT, &optindex) != TCL_OK)
- return (IS_HELP(objv[i]));
- i++;
- switch ((enum archopts)optindex) {
- case ARCH_ABS:
- flag |= DB_ARCH_ABS;
- break;
- case ARCH_DATA:
- flag |= DB_ARCH_DATA;
- break;
- case ARCH_LOG:
- flag |= DB_ARCH_LOG;
- break;
- }
- }
- _debug_check();
- list = NULL;
- ret = envp->log_archive(envp, &list, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "log archive");
- if (result == TCL_OK) {
- res = Tcl_NewListObj(0, NULL);
- for (file = list; file != NULL && *file != NULL; file++) {
- fileobj = Tcl_NewStringObj(*file, strlen(*file));
- result = Tcl_ListObjAppendElement(interp, res, fileobj);
- if (result != TCL_OK)
- break;
- }
- Tcl_SetObjResult(interp, res);
- }
- if (list != NULL)
- __os_ufree(envp, list);
- return (result);
- }
- /*
- * tcl_LogCompare --
- *
- * PUBLIC: int tcl_LogCompare __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*));
- */
- int
- tcl_LogCompare(interp, objc, objv)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- {
- DB_LSN lsn0, lsn1;
- Tcl_Obj *res;
- int result, ret;
- result = TCL_OK;
- /*
- * No flags, must be 4 args.
- */
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 2, objv, "lsn1 lsn2");
- return (TCL_ERROR);
- }
- result = _GetLsn(interp, objv[2], &lsn0);
- if (result == TCL_ERROR)
- return (result);
- result = _GetLsn(interp, objv[3], &lsn1);
- if (result == TCL_ERROR)
- return (result);
- _debug_check();
- ret = log_compare(&lsn0, &lsn1);
- res = Tcl_NewIntObj(ret);
- Tcl_SetObjResult(interp, res);
- return (result);
- }
- /*
- * tcl_LogFile --
- *
- * PUBLIC: int tcl_LogFile __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogFile(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- DB_LSN lsn;
- Tcl_Obj *res;
- size_t len;
- int result, ret;
- char *name;
- result = TCL_OK;
- /*
- * No flags, must be 3 args.
- */
- if (objc != 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "lsn");
- return (TCL_ERROR);
- }
- result = _GetLsn(interp, objv[2], &lsn);
- if (result == TCL_ERROR)
- return (result);
- len = MSG_SIZE;
- ret = ENOMEM;
- name = NULL;
- while (ret == ENOMEM) {
- if (name != NULL)
- __os_free(envp, name);
- ret = __os_malloc(envp, len, &name);
- if (ret != 0) {
- Tcl_SetResult(interp, db_strerror(ret), TCL_STATIC);
- break;
- }
- _debug_check();
- ret = envp->log_file(envp, &lsn, name, len);
- len *= 2;
- }
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "log_file");
- if (ret == 0) {
- res = Tcl_NewStringObj(name, strlen(name));
- Tcl_SetObjResult(interp, res);
- }
- if (name != NULL)
- __os_free(envp, name);
- return (result);
- }
- /*
- * tcl_LogFlush --
- *
- * PUBLIC: int tcl_LogFlush __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogFlush(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- DB_LSN lsn, *lsnp;
- int result, ret;
- result = TCL_OK;
- /*
- * No flags, must be 2 or 3 args.
- */
- if (objc > 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?lsn?");
- return (TCL_ERROR);
- }
- if (objc == 3) {
- lsnp = &lsn;
- result = _GetLsn(interp, objv[2], &lsn);
- if (result == TCL_ERROR)
- return (result);
- } else
- lsnp = NULL;
- _debug_check();
- ret = envp->log_flush(envp, lsnp);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "log_flush");
- return (result);
- }
- /*
- * tcl_LogGet --
- *
- * PUBLIC: int tcl_LogGet __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogGet(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- COMPQUIET(objv, NULL);
- COMPQUIET(objc, 0);
- COMPQUIET(envp, NULL);
- Tcl_SetResult(interp, "FAIL: log_get deprecatedn", TCL_STATIC);
- return (TCL_ERROR);
- }
- /*
- * tcl_LogPut --
- *
- * PUBLIC: int tcl_LogPut __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogPut(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- static char *logputopts[] = {
- "-flush",
- NULL
- };
- enum logputopts {
- LOGPUT_FLUSH
- };
- DB_LSN lsn;
- DBT data;
- Tcl_Obj *intobj, *res;
- void *dtmp;
- u_int32_t flag;
- int freedata, optindex, result, ret;
- result = TCL_OK;
- flag = 0;
- freedata = 0;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? record");
- return (TCL_ERROR);
- }
- /*
- * Data/record must be the last arg.
- */
- memset(&data, 0, sizeof(data));
- ret = _CopyObjBytes(interp, objv[objc-1], &dtmp,
- &data.size, &freedata);
- if (ret != 0) {
- result = _ReturnSetup(interp, ret,
- DB_RETOK_STD(ret), "log put");
- return (result);
- }
- data.data = dtmp;
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- if (objc == 4) {
- if (Tcl_GetIndexFromObj(interp, objv[2],
- logputopts, "option", TCL_EXACT, &optindex) != TCL_OK) {
- return (IS_HELP(objv[2]));
- }
- switch ((enum logputopts)optindex) {
- case LOGPUT_FLUSH:
- flag = DB_FLUSH;
- break;
- }
- }
- if (result == TCL_ERROR)
- return (result);
- _debug_check();
- ret = envp->log_put(envp, &lsn, &data, flag);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "log_put");
- if (result == TCL_ERROR)
- return (result);
- res = Tcl_NewListObj(0, NULL);
- intobj = Tcl_NewLongObj((long)lsn.file);
- result = Tcl_ListObjAppendElement(interp, res, intobj);
- intobj = Tcl_NewLongObj((long)lsn.offset);
- result = Tcl_ListObjAppendElement(interp, res, intobj);
- Tcl_SetObjResult(interp, res);
- if (freedata)
- (void)__os_free(NULL, dtmp);
- return (result);
- }
- /*
- * tcl_LogStat --
- *
- * PUBLIC: int tcl_LogStat __P((Tcl_Interp *, int,
- * PUBLIC: Tcl_Obj * CONST*, DB_ENV *));
- */
- int
- tcl_LogStat(interp, objc, objv, envp)
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- DB_ENV *envp; /* Environment pointer */
- {
- DB_LOG_STAT *sp;
- Tcl_Obj *res;
- int result, ret;
- result = TCL_OK;
- /*
- * No args for this. Error if there are some.
- */
- if (objc != 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = envp->log_stat(envp, &sp, 0);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret), "log stat");
- if (result == TCL_ERROR)
- return (result);
- /*
- * Have our stats, now construct the name value
- * list pairs and free up the memory.
- */
- res = Tcl_NewObj();
- /*
- * MAKE_STAT_LIST assumes 'res' and 'error' label.
- */
- MAKE_STAT_LIST("Magic", sp->st_magic);
- MAKE_STAT_LIST("Log file Version", sp->st_version);
- MAKE_STAT_LIST("Region size", sp->st_regsize);
- MAKE_STAT_LIST("Log file mode", sp->st_mode);
- MAKE_STAT_LIST("Log record cache size", sp->st_lg_bsize);
- MAKE_STAT_LIST("Current log file size", sp->st_lg_size);
- MAKE_STAT_LIST("Mbytes written", sp->st_w_mbytes);
- MAKE_STAT_LIST("Bytes written (over Mb)", sp->st_w_bytes);
- MAKE_STAT_LIST("Mbytes written since checkpoint", sp->st_wc_mbytes);
- MAKE_STAT_LIST("Bytes written (over Mb) since checkpoint",
- sp->st_wc_bytes);
- MAKE_STAT_LIST("Times log written", sp->st_wcount);
- MAKE_STAT_LIST("Times log written because cache filled up",
- sp->st_wcount_fill);
- MAKE_STAT_LIST("Times log flushed", sp->st_scount);
- MAKE_STAT_LIST("Current log file number", sp->st_cur_file);
- MAKE_STAT_LIST("Current log file offset", sp->st_cur_offset);
- MAKE_STAT_LIST("On-disk log file number", sp->st_disk_file);
- MAKE_STAT_LIST("On-disk log file offset", sp->st_disk_offset);
- MAKE_STAT_LIST("Max commits in a log flush", sp->st_maxcommitperflush);
- MAKE_STAT_LIST("Min commits in a log flush", sp->st_mincommitperflush);
- MAKE_STAT_LIST("Number of region lock waits", sp->st_region_wait);
- MAKE_STAT_LIST("Number of region lock nowaits", sp->st_region_nowait);
- Tcl_SetObjResult(interp, res);
- error:
- free(sp);
- return (result);
- }
- /*
- * logc_Cmd --
- * Implements the log cursor command.
- *
- * PUBLIC: int logc_Cmd __P((ClientData, Tcl_Interp *, int, Tcl_Obj * CONST*));
- */
- int
- logc_Cmd(clientData, interp, objc, objv)
- ClientData clientData; /* Cursor handle */
- Tcl_Interp *interp; /* Interpreter */
- int objc; /* How many arguments? */
- Tcl_Obj *CONST objv[]; /* The argument objects */
- {
- static char *logccmds[] = {
- "close",
- "get",
- NULL
- };
- enum logccmds {
- LOGCCLOSE,
- LOGCGET
- };
- DB_LOGC *logc;
- DBTCL_INFO *logcip;
- int cmdindex, result, ret;
- Tcl_ResetResult(interp);
- logc = (DB_LOGC *)clientData;
- logcip = _PtrToInfo((void *)logc);
- result = TCL_OK;
- if (objc <= 1) {
- Tcl_WrongNumArgs(interp, 1, objv, "command cmdargs");
- return (TCL_ERROR);
- }
- if (logc == NULL) {
- Tcl_SetResult(interp, "NULL logc pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- if (logcip == NULL) {
- Tcl_SetResult(interp, "NULL logc info pointer", TCL_STATIC);
- return (TCL_ERROR);
- }
- /*
- * Get the command name index from the object based on the berkdbcmds
- * defined above.
- */
- if (Tcl_GetIndexFromObj(interp, objv[1], logccmds, "command",
- TCL_EXACT, &cmdindex) != TCL_OK)
- return (IS_HELP(objv[1]));
- switch ((enum logccmds)cmdindex) {
- case LOGCCLOSE:
- /*
- * No args for this. Error if there are some.
- */
- if (objc > 2) {
- Tcl_WrongNumArgs(interp, 2, objv, NULL);
- return (TCL_ERROR);
- }
- _debug_check();
- ret = logc->close(logc, 0);
- result = _ReturnSetup(interp, ret, DB_RETOK_STD(ret),
- "logc close");
- if (result == TCL_OK) {
- (void)Tcl_DeleteCommand(interp, logcip->i_name);
- _DeleteInfo(logcip);
- }
- break;
- case LOGCGET:
- result = tcl_LogcGet(interp, objc, objv, logc);
- break;
- }
- return (result);
- }
- static int
- tcl_LogcGet(interp, objc, objv, logc)
- Tcl_Interp *interp;
- int objc;
- Tcl_Obj * CONST *objv;
- DB_LOGC *logc;
- {
- static char *logcgetopts[] = {
- "-current",
- "-first",
- "-last",
- "-next",
- "-prev",
- "-set",
- NULL
- };
- enum logcgetopts {
- LOGCGET_CURRENT,
- LOGCGET_FIRST,
- LOGCGET_LAST,
- LOGCGET_NEXT,
- LOGCGET_PREV,
- LOGCGET_SET
- };
- DB_LSN lsn;
- DBT data;
- Tcl_Obj *dataobj, *lsnlist, *myobjv[2], *res;
- u_int32_t flag;
- int i, myobjc, optindex, result, ret;
- result = TCL_OK;
- res = NULL;
- flag = 0;
- if (objc < 3) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-args? lsn");
- return (TCL_ERROR);
- }
- /*
- * Get the command name index from the object based on the options
- * defined above.
- */
- i = 2;
- while (i < objc) {
- if (Tcl_GetIndexFromObj(interp, objv[i],
- logcgetopts, "option", TCL_EXACT, &optindex) != TCL_OK)
- return (IS_HELP(objv[i]));
- i++;
- switch ((enum logcgetopts)optindex) {
- case LOGCGET_CURRENT:
- FLAG_CHECK(flag);
- flag |= DB_CURRENT;
- break;
- case LOGCGET_FIRST:
- FLAG_CHECK(flag);
- flag |= DB_FIRST;
- break;
- case LOGCGET_LAST:
- FLAG_CHECK(flag);
- flag |= DB_LAST;
- break;
- case LOGCGET_NEXT:
- FLAG_CHECK(flag);
- flag |= DB_NEXT;
- break;
- case LOGCGET_PREV:
- FLAG_CHECK(flag);
- flag |= DB_PREV;
- break;
- case LOGCGET_SET:
- FLAG_CHECK(flag);
- flag |= DB_SET;
- if (i == objc) {
- Tcl_WrongNumArgs(interp, 2, objv, "?-set lsn?");
- result = TCL_ERROR;
- break;
- }
- result = _GetLsn(interp, objv[i++], &lsn);
- break;
- }
- }
- if (result == TCL_ERROR)
- return (result);
- memset(&data, 0, sizeof(data));
- _debug_check();
- ret = logc->get(logc, &lsn, &data, flag);
- res = Tcl_NewListObj(0, NULL);
- if (res == NULL)
- goto memerr;
- if (ret == 0) {
- /*
- * Success. Set up return list as {LSN data} where LSN
- * is a sublist {file offset}.
- */
- myobjc = 2;
- myobjv[0] = Tcl_NewLongObj((long)lsn.file);
- myobjv[1] = Tcl_NewLongObj((long)lsn.offset);
- lsnlist = Tcl_NewListObj(myobjc, myobjv);
- if (lsnlist == NULL)
- goto memerr;
- result = Tcl_ListObjAppendElement(interp, res, lsnlist);
- dataobj = Tcl_NewStringObj(data.data, data.size);
- if (dataobj == NULL) {
- goto memerr;
- }
- result = Tcl_ListObjAppendElement(interp, res, dataobj);
- } else
- result = _ReturnSetup(interp, ret, DB_RETOK_LGGET(ret),
- "DB_LOGC->get");
- Tcl_SetObjResult(interp, res);
- if (0) {
- memerr: if (res != NULL)
- Tcl_DecrRefCount(res);
- Tcl_SetResult(interp, "allocation failed", TCL_STATIC);
- }
- return (result);
- }
- #endif