1 files changed, 53 insertions, 0 deletions
diff --git a/src/pmdas/txmon/txmon.h b/src/pmdas/txmon/txmon.h
new file mode 100644
index 0000000..d7a74e8
--- /dev/null
+++ b/src/pmdas/txmon/txmon.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 1997 Silicon Graphics, Inc.  All Rights Reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/*
+ * the txmon shm segment
+ *
+ * control comes at the beginning, with index[] expanded to match the
+ * number of transaction types (control->n_tx)
+ *
+ * then follows one stat_t per transaction type, subject to the
+ * constraint that each stat_t is hardware cache aligned to avoid
+ * anti-social bus traffic
+ */
+
+typedef struct {
+    int		level;		/* controls stats collection levels */
+    int		n_tx;		/* # of tx types */
+    int		index[1];	/* will be expanded when allocated */
+} control_t;
+
+static control_t	*control;
+
+#define MAXNAMESIZE 20
+
+typedef struct {
+
+    /* managed by txmon PMDA ... do not fiddle with these! */
+    char		type[MAXNAMESIZE];	/* tx type name */
+    unsigned int	reset_count;	/* tx count @ last reset */
+
+    /* initialized and then read by txmon PMDA, updated by txrecord */
+    unsigned int	count;		/* tx count since epoch */
+    float		max_time;	/* maximum elapsed time */
+    double		sum_time;	/* aggregate elapsed time */
+} stat_t;
+
+/* arbitrary shm key */
+#define KEY (key_t)0xdeadbeef