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Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/db/os_handle.c')
-rw-r--r--debian/htdig/htdig-3.2.0b6/db/os_handle.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/db/os_handle.c b/debian/htdig/htdig-3.2.0b6/db/os_handle.c
new file mode 100644
index 00000000..5404fd27
--- /dev/null
+++ b/debian/htdig/htdig-3.2.0b6/db/os_handle.c
@@ -0,0 +1,118 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1998, 1999
+ * Sleepycat Software. All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)os_handle.c 11.2 (Sleepycat) 11/12/99";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+
+#ifndef _MSC_VER /* _WIN32 */
+#include <unistd.h>
+#endif
+
+#endif
+
+#include "db_int.h"
+#include "os_jump.h"
+
+/*
+ * CDB___os_openhandle --
+ * Open a file, using POSIX 1003.1 open flags.
+ *
+ * PUBLIC: int CDB___os_openhandle __P((const char *, int, int, DB_FH *));
+ */
+int
+CDB___os_openhandle(name, flags, mode, fhp)
+ const char *name;
+ int flags, mode;
+ DB_FH *fhp;
+{
+ int ret, try;
+
+ memset(fhp, 0, sizeof(*fhp));
+
+ for (ret = 0, try = 1; try < 4; ++try) {
+ /*
+ * !!!
+ * Open with full sharing on VMS.
+ *
+ * We use these flags because they are the ones set by the VMS
+ * CRTL mmap() call when it opens a file, and we have to be
+ * able to open files that mmap() has previously opened, e.g.,
+ * when we're joining already existing DB regions.
+ */
+
+#ifdef _MSC_VER /* _WIN32 */
+ /* THIS IS A HACK TO REINSTATE BINARY MODE! FIX ME.. FIND THE PROBLEM*/
+ mode |= _O_BINARY;
+#endif
+
+ fhp->fd = CDB___db_jump.j_open != NULL ?
+ CDB___db_jump.j_open(name, flags, mode) :
+#ifdef __VMS
+ open(name, flags, mode, "shr=get,put,upd,del,upi");
+#else
+ open(name, flags, mode);
+#endif
+
+ /* DEBUGGING */
+ /* printf("\n[CDB___os_openhandle] name=[%s] mode=[%#x] fhp->fd=[%d]\n", name, mode, fhp->fd); */
+
+ if (fhp->fd == -1) {
+ /*
+ * If it's a "temporary" error, we retry up to 3 times,
+ * waiting up to 12 seconds. While it's not a problem
+ * if we can't open a database, an inability to open a
+ * log file is cause for serious dismay.
+ */
+ ret = CDB___os_get_errno();
+ if (ret == ENFILE || ret == EMFILE || ret == ENOSPC) {
+ (void)CDB___os_sleep(try * 2, 0);
+ continue;
+ }
+ } else
+ F_SET(fhp, DB_FH_VALID);
+ break;
+ }
+ return (ret);
+}
+
+/*
+ * CDB___os_closehandle --
+ * Close a file.
+ *
+ * PUBLIC: int CDB___os_closehandle __P((DB_FH *));
+ */
+int
+CDB___os_closehandle(fhp)
+ DB_FH *fhp;
+{
+ int ret;
+
+ /* Don't close file descriptors that were never opened. */
+ DB_ASSERT(F_ISSET(fhp, DB_FH_VALID) && fhp->fd != -1);
+
+ ret = CDB___db_jump.j_close != NULL ?
+ CDB___db_jump.j_close(fhp->fd) : close(fhp->fd);
+
+ /*
+ * Smash the POSIX file descriptor -- it's never tested, but we want
+ * to catch any mistakes.
+ */
+ fhp->fd = -1;
+ F_CLR(fhp, DB_FH_VALID);
+
+ return (ret == 0 ? 0 : CDB___os_get_errno());
+}