1 files changed, 95 insertions, 0 deletions
diff --git a/usr/src/cmd/truss/htbl.h b/usr/src/cmd/truss/htbl.h
new file mode 100644
index 0000000..fa37988
--- /dev/null
+++ b/usr/src/cmd/truss/htbl.h
@@ -0,0 +1,95 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_HTBL_H
+#define	_HTBL_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+#include <stdlib.h>
+
+typedef struct hentry {
+	struct hentry *next;		/* next entry in hash chain */
+	struct hentry *prev;		/* previous entry in hash chain */
+	char *lib;			/* library name */
+	char *key;			/* hash key (function name) */
+	unsigned long count;		/* number of occurances of fn */
+} hentry_t;
+
+typedef struct hashb {
+	hentry_t *first;		/* first entry in bucket */
+	mutex_t block;			/* bucket lock */
+} hashb_t;
+
+typedef struct htbl {
+	unsigned int size;		/* size of tbl in buckets */
+	hashb_t *tbl;			/* ptr to buckets */
+} htbl_t;
+
+typedef struct hiter {
+	int bucket;			/* bucket in current iteration */
+	hentry_t *next;			/* next entry in iteration */
+	htbl_t *table;			/* ptr to table */
+} hiter_t;
+
+/*
+ * HD_hashntry specifies that the entry written to disk contains information
+ * about function calls and is stored in the hash table.  When read back from
+ * disk this is merged into the parent's hash table
+ *
+ * HD_cts_syscts specifies that the entry written to disk is a struct counts
+ * struct syscount pair.  This contains information about system calls,
+ * signals, and faults.  When read back from disk, the information is added
+ * to the struct count / struct syscount information kept by the parent.
+ */
+
+typedef enum hdtype { HD_hashntry, HD_cts_syscts } hdtype_t;
+
+typedef struct hdntry {
+	hdtype_t type;		/* type of entry we've written to disk */
+	size_t sz_lib;		/* size of library string on disk */
+	size_t sz_key;		/* size of key string on disk */
+	unsigned long count;	/* count of occurrances of key */
+} hdntry_t;
+
+
+extern htbl_t *init_hash(unsigned int);
+extern void destroy_hash(htbl_t *);
+extern hiter_t *iterate_hash(htbl_t *);
+extern hentry_t *iter_next(hiter_t *);
+extern void iter_free(hiter_t *);
+extern void add_fcall(htbl_t *, char *, char *, unsigned long);
+extern size_t elements_in_table(htbl_t *);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _HTBL_H */