summaryrefslogtreecommitdiff
path: root/db2/progs/db_checkpoint/db_checkpoint.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>1997-08-27 20:26:10 +0000
committerUlrich Drepper <drepper@redhat.com>1997-08-27 20:26:10 +0000
commit92f1da4da04a7a86ddee91be5eaf0b10c333ac64 (patch)
tree2a10ce9e4e407e7e5b5ca092ca0947d234b5ff60 /db2/progs/db_checkpoint/db_checkpoint.c
parent22be878ecbc66606371bd33258f56e6711e6ba7a (diff)
1997-08-10 19:17 Philip Blundell <Philip.Blundell@pobox.com> * nss/nss_db/db-XXX.c: Include <db_185.h> not <db.h>. Somebody should update this to use the new db API. * nss/nss_db/db-netgrp.c: Likewise. * nss/nss_db/db-alias.c: Likewise. * db2/Makefile: Makefile for db-2.x in glibc. 1997-08-27 21:20 Ulrich Drepper <drepper@cygnus.com> * csu/Makefile (before-compile): New goal. Make sure abi-tag.h is generated. [$(elf)=yes] (asm-CPPFLAGS): Make sure abi-tag.h file can be found. * Makeconfig [$(build-omitfp)=yes] (CFLAGS-.o): Add -D__USE_STRING_INLINES. * string/string.f: Move strnlen optimization after inclusion of <bits/string.h>. Include <bits/string.h> only if __USE_STRING_INLINES is defined. * sysdeps/generic/memcpy.c: Undef memcpy to allow macro of this name in <bits/string.h>. * sysdeps/generic/memset.c: Likewise. * sysdeps/i386/string.h: i386 optimized string functions. * sysdeps/i386/i486string.h: i486+ optimized string functions. * Makefile (subdirs): Change db to db2. * shlib-versions: Bump libdb verion number to 3. * include/db.h: Include from db2 directory. * include/db_185.h: New file. * sysdeps/i386/Makefile [$(subdirs)=db2] (CPPFLAGS): Add macros to provide spinlock information for db2. * sysdeps/m68k/m68020/Makefile: New file. Likewise. * sysdeps/sparc/Makefile: New file. Likewise. * sysdeps/unix/sysv/linux/Makefile [$(subdirs)=db2] (CPPFLAGS): Add -DHAVE_LLSEEK. * db2/config.h: Hand-edited config file for db2 in glibc. * db2/compat.h: New file from db-2.3.4. * db2/db.h: Likewise. * db2/db_185.h: Likewise. * db2/db_int.h: Likewise. * db2/makedb.c: Likewise. * db2/btree/bt_close.c: Likewise. * db2/btree/bt_compare.c: Likewise. * db2/btree/bt_conv.c: Likewise. * db2/btree/bt_cursor.c: Likewise. * db2/btree/bt_delete.c: Likewise. * db2/btree/bt_open.c: Likewise. * db2/btree/bt_page.c: Likewise. * db2/btree/bt_put.c: Likewise. * db2/btree/bt_rec.c: Likewise. * db2/btree/bt_recno.c: Likewise. * db2/btree/btree_auto.c: Likewise. * db2/btree/bt_rsearch.c: Likewise. * db2/btree/bt_search.c: Likewise. * db2/btree/bt_split.c: Likewise. * db2/btree/bt_stat.c: Likewise. * db2/btree/btree.src: Likewise. * db2/common/db_appinit.c: Likewise. * db2/common/db_err.c: Likewise. * db2/common/db_byteorder.c: Likewise. * db2/common/db_apprec.c: Likewise. * db2/common/db_salloc.c: Likewise. * db2/common/db_log2.c: Likewise. * db2/common/db_region.c: Likewise. * db2/common/db_shash.c: Likewise. * db2/db/db.c: Likewise. * db2/db/db.src: Likewise. * db2/db/db_conv.c: Likewise. * db2/db/db_dispatch.c: Likewise. * db2/db/db_dup.c: Likewise. * db2/db/db_overflow.c: Likewise. * db2/db/db_pr.c: Likewise. * db2/db/db_rec.c: Likewise. * db2/db/db_ret.c: Likewise. * db2/db/db_thread.c: Likewise. * db2/db/db_auto.c: Likewise. * db2/db185/db185.c: Likewise. * db2/db185/db185_int.h: Likewise. * db2/dbm/dbm.c: Likewise. * db2/hash/hash.c: Likewise. * db2/hash/hash.src: Likewise. * db2/hash/hash_page.c: Likewise. * db2/hash/hash_conv.c: Likewise. * db2/hash/hash_debug.c: Likewise. * db2/hash/hash_stat.c: Likewise. * db2/hash/hash_rec.c: Likewise. * db2/hash/hash_dup.c: Likewise. * db2/hash/hash_func.c: Likewise. * db2/hash/hash_auto.c: Likewise. * db2/include/mp.h: Likewise. * db2/include/btree.h: Likewise. * db2/include/db.h.src: Likewise. * db2/include/db_int.h.src: Likewise. * db2/include/db_shash.h: Likewise. * db2/include/db_swap.h: Likewise. * db2/include/db_185.h.src: Likewise. * db2/include/txn.h: Likewise. * db2/include/db_am.h: Likewise. * db2/include/shqueue.h: Likewise. * db2/include/hash.h: Likewise. * db2/include/db_dispatch.h: Likewise. * db2/include/lock.h: Likewise. * db2/include/db_page.h: Likewise. * db2/include/log.h: Likewise. * db2/include/db_auto.h: Likewise. * db2/include/btree_auto.h: Likewise. * db2/include/hash_auto.h: Likewise. * db2/include/log_auto.h: Likewise. * db2/include/txn_auto.h: Likewise. * db2/include/db_ext.h: Likewise. * db2/include/btree_ext.h: Likewise. * db2/include/clib_ext.h: Likewise. * db2/include/common_ext.h: Likewise. * db2/include/hash_ext.h: Likewise. * db2/include/lock_ext.h: Likewise. * db2/include/log_ext.h: Likewise. * db2/include/mp_ext.h: Likewise. * db2/include/mutex_ext.h: Likewise. * db2/include/os_ext.h: Likewise. * db2/include/txn_ext.h: Likewise. * db2/include/cxx_int.h: Likewise. * db2/include/db_cxx.h: Likewise. * db2/include/queue.h: Likewise. * db2/lock/lock.c: Likewise. * db2/lock/lock_conflict.c: Likewise. * db2/lock/lock_util.c: Likewise. * db2/lock/lock_deadlock.c: Likewise. * db2/log/log.c: Likewise. * db2/log/log_get.c: Likewise. * db2/log/log.src: Likewise. * db2/log/log_compare.c: Likewise. * db2/log/log_put.c: Likewise. * db2/log/log_rec.c: Likewise. * db2/log/log_archive.c: Likewise. * db2/log/log_register.c: Likewise. * db2/log/log_auto.c: Likewise. * db2/log/log_findckp.c: Likewise. * db2/mp/mp_bh.c: Likewise. * db2/mp/mp_fget.c: Likewise. * db2/mp/mp_fopen.c: Likewise. * db2/mp/mp_fput.c: Likewise. * db2/mp/mp_fset.c: Likewise. * db2/mp/mp_open.c: Likewise. * db2/mp/mp_region.c: Likewise. * db2/mp/mp_pr.c: Likewise. * db2/mp/mp_sync.c: Likewise. * db2/mutex/68020.gcc: Likewise. * db2/mutex/mutex.c: Likewise. * db2/mutex/README: Likewise. * db2/mutex/x86.gcc: Likewise. * db2/mutex/sparc.gcc: Likewise. * db2/mutex/uts4.cc.s: Likewise. * db2/mutex/alpha.dec: Likewise. * db2/mutex/alpha.gcc: Likewise. * db2/mutex/parisc.gcc: Likewise. * db2/mutex/parisc.hp: Likewise. * db2/os/db_os_abs.c: Likewise. * db2/os/db_os_dir.c: Likewise. * db2/os/db_os_fid.c: Likewise. * db2/os/db_os_lseek.c: Likewise. * db2/os/db_os_mmap.c: Likewise. * db2/os/db_os_open.c: Likewise. * db2/os/db_os_rw.c: Likewise. * db2/os/db_os_sleep.c: Likewise. * db2/os/db_os_stat.c: Likewise. * db2/os/db_os_unlink.c: Likewise. * db2/txn/txn.c: Likewise. * db2/txn/txn.src: Likewise. * db2/txn/txn_rec.c: Likewise. * db2/txn/txn_auto.c: Likewise. * db2/clib/getlong.c: Likewise. * db2/progs/db_archive/db_archive.c: Likewise. * db2/progs/db_checkpoint/db_checkpoint.c: Likewise. * db2/progs/db_deadlock/db_deadlock.c: Likewise. * db2/progs/db_dump/db_dump.c: Likewise. * db2/progs/db_dump185/db_dump185.c: Likewise. * db2/progs/db_load/db_load.c: Likewise. * db2/progs/db_printlog/db_printlog.c: Likewise. * db2/progs/db_recover/db_recover.c: Likewise. * db2/progs/db_stat/db_stat.c: Likewise. * libio/stdio.h [__cplusplus] (__STDIO_INLINE): Define as inline. * po/de.po, po/sv.po: Update from 2.0.5 translations. * sysdeps/unix/sysv/linux/netinet/tcp.h: Pretty print. * sunrpc/rpc/xdr.h (XDR): Don't define argument of x_destroy callback as const. * sunrpc/xdr_mem.c (xdrmem_destroy): Don't define argument as const. * sunrpx/xdr_rec.c (xdrrec_destroy): Likewise. * sunrpx/xdr_stdio.c (xdrstdio_destroy): Likewise. 1997-08-27 18:47 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/if_index.c: Include <errno.h>. Reported by Benjamin Kosnik <bkoz@cygnus.com>. 1997-08-27 02:27 Roland McGrath <roland@baalperazim.frob.com> * abi-tags: New file. * csu/Makefile (distribute): Remove abi-tag.h. ($(objpfx)abi-tag.h): New target. * Makefile (distribute): Add abi-tags. * sysdeps/unix/sysv/linux/abi-tag.h: File removed. * sysdeps/mach/hurd/abi-tag.h: File removed. * sysdeps/stub/abi-tag.h: File removed. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/unix/make-syscalls.sh: Change output so that it generates compilation rules only for the currently selected object suffixes. 1997-08-25 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/dl-machine.h (RTLD_START): Switch back to previous section to avoid confusing the compiler. * sysdeps/alpha/dl-machine.h (RTLD_START): Likewise. * sysdeps/i386/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/dl-machine.h (RTLD_START): Likewise. * sysdeps/mips/mips64/dl-machine.h (RTLD_START): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (RTLD_START): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use a GOT relocation instead of a constant to avoid text relocation. (ELF_MACHINE_BEFORE_RTLD_RELOC): Removed. (RTLD_START): Declare global labels as functions and add size directive. 1997-08-25 17:01 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/bits/select.h: Correct assembler versions to work even for descriptors >= 32. * stdlib/alloca.h: Don't define alloca to __alloca since if gcc is used __alloca is not defined to __builtin_alloca and so might not be available. Reported by Uwe Ohse <uwe@ohse.de>. * sysdeps/unix/sysv/linux/sys/sysmacros.h: Define macros in a special way if gcc is not used and so dev_t is an array. Reported by Uwe Ohse <uwe@ohse.de>. 1997-08-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * manual/libc.texinfo: Reorder chapters to match logical order. 1997-08-25 12:22 Ulrich Drepper <drepper@cygnus.com> * sunrpc/rpc/xdr.h: Change name of parameters in prototypes of xdr_reference, xdrmem_create, and xdrstdio_create because of clash with g++ internal symbols. Patch by Sudish Joseph <sj@eng.mindspring.net>. * elf/dl-deps.c: Implement handling of DT_FILTER.
Diffstat (limited to 'db2/progs/db_checkpoint/db_checkpoint.c')
-rw-r--r--db2/progs/db_checkpoint/db_checkpoint.c246
1 files changed, 246 insertions, 0 deletions
diff --git a/db2/progs/db_checkpoint/db_checkpoint.c b/db2/progs/db_checkpoint/db_checkpoint.c
new file mode 100644
index 0000000000..586b4b9686
--- /dev/null
+++ b/db2/progs/db_checkpoint/db_checkpoint.c
@@ -0,0 +1,246 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997
+ * Sleepycat Software. All rights reserved.
+ */
+
+#include "config.h"
+
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1997\n\
+ Sleepycat Software Inc. All rights reserved.\n";
+static const char sccsid[] = "@(#)db_checkpoint.c 10.9 (Sleepycat) 7/4/97";
+#endif
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "shqueue.h"
+#include "db_page.h"
+#include "log.h"
+#include "btree.h"
+#include "hash.h"
+#include "clib_ext.h"
+#include "common_ext.h"
+
+char *check __P((DB_ENV *, long, long));
+int checkpoint __P((DB_ENV *, char *, int));
+DB_ENV *db_init __P((char *));
+int logpid __P((char *, int));
+void onint __P((int));
+void siginit __P((void));
+void usage __P((void));
+int main __P((int, char *[]));
+
+int interrupted;
+time_t now; /* Checkpoint time. */
+const char *progname = "db_checkpoint"; /* Program name. */
+
+int
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ extern char *optarg;
+ extern int optind;
+ DB_ENV *dbenv;
+ time_t now;
+ long kbytes, minutes, seconds;
+ int ch, rval, verbose;
+ char *home, *logfile;
+
+ home = logfile = NULL;
+ kbytes = minutes = 0;
+ verbose = 0;
+ while ((ch = getopt(argc, argv, "h:k:L:p:v")) != EOF)
+ switch (ch) {
+ case 'h':
+ home = optarg;
+ break;
+ case 'k':
+ get_long(optarg, 1, LONG_MAX, &kbytes);
+ break;
+ case 'L':
+ logfile = optarg;
+ break;
+ case 'p':
+ get_long(optarg, 1, LONG_MAX, &minutes);
+ break;
+ case 'v':
+ verbose = 1;
+ break;
+ case '?':
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 0)
+ usage();
+
+ if (kbytes == 0 && minutes == 0) {
+ warnx("at least one of -k and -p must be specified");
+ usage();
+ }
+
+ /* Initialize the environment. */
+ dbenv = db_init(home);
+
+ if (logfile != NULL && logpid(logfile, 1)) {
+ (void)db_appexit(dbenv);
+ return (1);
+ }
+
+ /*
+ * If we have only a time delay, then we'll sleep the right amount
+ * to wake up when a checkpoint is necessary. If we have a "kbytes"
+ * field set, then we'll check every 30 seconds.
+ */
+ rval = 0;
+ seconds = kbytes != 0 ? 30 : minutes * 60;
+ while (!interrupted) {
+ (void)__db_sleep(seconds, 0);
+
+ if (verbose) {
+ (void)time(&now);
+ printf("checkpoint: %s", ctime(&now));
+ }
+ rval = txn_checkpoint(dbenv->tx_info, kbytes, minutes);
+ if (rval < 0)
+ break;
+
+ while (rval > 0) {
+ if (verbose)
+ __db_err(dbenv,
+ "checkpoint did not finish, retrying");
+ (void)__db_sleep(2, 0);
+ rval = txn_checkpoint(dbenv->tx_info, 0, 0);
+ }
+ if (rval < 0)
+ break;
+ }
+
+ if (logfile != NULL && logpid(logfile, 0))
+ rval = 1;
+
+ if (interrupted) {
+ (void)signal(interrupted, SIG_DFL);
+ (void)raise(interrupted);
+ /* NOTREACHED */
+ }
+
+ return (db_appexit(dbenv) || rval ? 1 : 0);
+}
+
+/*
+ * db_init --
+ * Initialize the environment.
+ */
+DB_ENV *
+db_init(home)
+ char *home;
+{
+ DB_ENV *dbenv;
+
+ if ((dbenv = (DB_ENV *)calloc(sizeof(DB_ENV), 1)) == NULL) {
+ errno = ENOMEM;
+ err(1, NULL);
+ }
+ dbenv->db_errfile = stderr;
+ dbenv->db_errpfx = progname;
+
+ if ((errno = db_appinit(home, NULL, dbenv,
+ DB_INIT_LOG | DB_INIT_TXN | DB_INIT_MPOOL | DB_USE_ENVIRON)) != 0)
+ err(1, "db_appinit");
+
+ if (memp_register(dbenv->mp_info,
+ DB_FTYPE_BTREE, __bam_pgin, __bam_pgout) ||
+ memp_register(dbenv->mp_info,
+ DB_FTYPE_HASH, __ham_pgin, __ham_pgout)) {
+ (void)db_appexit(dbenv);
+ errx(1,
+ "db_appinit: failed to register access method functions");
+ }
+
+ siginit();
+
+ return (dbenv);
+}
+
+/*
+ * logpid --
+ * Log that we're running.
+ */
+int
+logpid(fname, is_open)
+ char *fname;
+ int is_open;
+{
+ FILE *fp;
+ time_t now;
+
+ if (is_open) {
+ if ((fp = fopen(fname, "w")) == NULL) {
+ warn("%s", fname);
+ return (1);
+ }
+ (void)time(&now);
+ fprintf(fp,
+ "%s: %lu %s", progname, (u_long)getpid(), ctime(&now));
+ fclose(fp);
+ } else
+ (void)remove(fname);
+ return (0);
+}
+
+/*
+ * siginit --
+ * Initialize the set of signals for which we want to clean up.
+ * Generally, we try not to leave the shared regions locked if
+ * we can.
+ */
+void
+siginit()
+{
+#ifdef SIGHUP
+ (void)signal(SIGHUP, onint);
+#endif
+ (void)signal(SIGINT, onint);
+#ifdef SIGKILL
+ (void)signal(SIGKILL, onint);
+#endif
+ (void)signal(SIGTERM, onint);
+}
+
+/*
+ * oninit --
+ * Interrupt signal handler.
+ */
+void
+onint(signo)
+ int signo;
+{
+ if ((interrupted = signo) == 0)
+ interrupted = SIGINT;
+}
+
+void
+usage()
+{
+ (void)fprintf(stderr,
+ "usage: db_checkpoint [-v] [-h home] [-k kbytes] [-L file] [-p min]\n");
+ exit(1);
+}