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comparison src/os/bsd/dtrace/jvm_dtrace.h @ 4006:436b4a3231bf

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7098194: integrate macosx-port changes Summary: Integrate bsd-port/hotspot and macosx-port/hotspot changes as of 2011.09.29. Reviewed-by: kvn, dholmes, never, phh Contributed-by: Christos Zoulas <christos@zoulas.com>, Greg Lewis <glewis@eyesbeyond.com>, Kurt Miller <kurt@intricatesoftware.com>, Alexander Strange <astrange@apple.com>, Mike Swingler <swingler@apple.com>, Roger Hoover <rhoover@apple.com>, Victor Hernandez <vhernandez@apple.com>, Pratik Solanki <psolanki@apple.com>
author dcubed
date Thu, 13 Oct 2011 09:35:42 -0700
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4005:2ef3386478e6 4006:436b4a3231bf
1 /*
2 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef _JVM_DTRACE_H_
26 #define _JVM_DTRACE_H_
27
28 /*
29 * Interface to dynamically turn on probes in Hotspot JVM. Currently,
30 * this interface can be used to dynamically enable certain DTrace
31 * probe points that are costly to have "always on".
32 */
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 #include <sys/types.h>
39
40
41 struct _jvm_t;
42 typedef struct _jvm_t jvm_t;
43
44
45 /* Attach to the given JVM process. Returns NULL on failure.
46 jvm_get_last_error() returns last error message. */
47 jvm_t* jvm_attach(pid_t pid);
48
49 /* Returns the last error message from this library or NULL if none. */
50 const char* jvm_get_last_error();
51
52 /* few well-known probe type constants for 'probe_types' param below */
53
54 #define JVM_DTPROBE_METHOD_ENTRY "method-entry"
55 #define JVM_DTPROBE_METHOD_RETURN "method-return"
56 #define JVM_DTPROBE_MONITOR_ENTER "monitor-contended-enter"
57 #define JVM_DTPROBE_MONITOR_ENTERED "monitor-contended-entered"
58 #define JVM_DTPROBE_MONITOR_EXIT "monitor-contended-exit"
59 #define JVM_DTPROBE_MONITOR_WAIT "monitor-wait"
60 #define JVM_DTPROBE_MONITOR_WAITED "monitor-waited"
61 #define JVM_DTPROBE_MONITOR_NOTIFY "monitor-notify"
62 #define JVM_DTPROBE_MONITOR_NOTIFYALL "monitor-notifyall"
63 #define JVM_DTPROBE_OBJECT_ALLOC "object-alloc"
64 #define JVM_DTPROBE_ALL "*"
65
66 /* Enable the specified DTrace probes of given probe types on
67 * the specified JVM. Returns >= 0 on success, -1 on failure.
68 * On success, this returns number of probe_types enabled.
69 * On failure, jvm_get_last_error() returns the last error message.
70 */
71 int jvm_enable_dtprobes(jvm_t* jvm, int num_probe_types, const char** probe_types);
72
73 /* Note: There is no jvm_disable_dtprobes function. Probes are automatically
74 * disabled when there are no more clients requiring those probes.
75 */
76
77 /* Detach the given JVM. Returns 0 on success, -1 on failure.
78 * jvm_get_last_error() returns the last error message.
79 */
80 int jvm_detach(jvm_t* jvm);
81
82 #ifdef __cplusplus
83 }
84 #endif
85
86 #endif /* _JVM_DTRACE_H_ */