projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 16421f6e DG |
1 | /* |
| 2 | * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca> | |
| 3 | * Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 4 | * | |
| d14d33bf AM |
5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License, version 2 only, | |
| 7 | * as published by the Free Software Foundation. | |
| 16421f6e DG |
8 | * |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| d14d33bf AM |
14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 16421f6e DG |
17 | */ |
| 18 | ||
| 19 | #ifndef _LTT_KERNEL_IOCTL_H | |
| 20 | #define _LTT_KERNEL_IOCTL_H | |
| 21 | ||
| 22 | /* Get a snapshot of the current ring buffer producer and consumer positions */ | |
| f3ed775e | 23 | #define RING_BUFFER_SNAPSHOT _IO(0xF6, 0x00) |
| 16421f6e DG |
24 | /* Get the consumer position (iteration start) */ |
| 25 | #define RING_BUFFER_SNAPSHOT_GET_CONSUMED _IOR(0xF6, 0x01, unsigned long) | |
| 26 | /* Get the producer position (iteration end) */ | |
| 27 | #define RING_BUFFER_SNAPSHOT_GET_PRODUCED _IOR(0xF6, 0x02, unsigned long) | |
| 28 | /* Get exclusive read access to the specified sub-buffer position */ | |
| f3ed775e | 29 | #define RING_BUFFER_GET_SUBBUF _IOW(0xF6, 0x03, unsigned long) |
| 16421f6e | 30 | /* Release exclusive sub-buffer access */ |
| f3ed775e | 31 | #define RING_BUFFER_PUT_SUBBUF _IO(0xF6, 0x04) |
| 16421f6e DG |
32 | |
| 33 | /* Get exclusive read access to the next sub-buffer that can be read. */ | |
| f3ed775e | 34 | #define RING_BUFFER_GET_NEXT_SUBBUF _IO(0xF6, 0x05) |
| 16421f6e | 35 | /* Release exclusive sub-buffer access, move consumer forward. */ |
| f3ed775e | 36 | #define RING_BUFFER_PUT_NEXT_SUBBUF _IO(0xF6, 0x06) |
| 16421f6e | 37 | /* returns the size of the current sub-buffer, without padding (for mmap). */ |
| f3ed775e | 38 | #define RING_BUFFER_GET_SUBBUF_SIZE _IOR(0xF6, 0x07, unsigned long) |
| 16421f6e DG |
39 | /* returns the size of the current sub-buffer, with padding (for splice). */ |
| 40 | #define RING_BUFFER_GET_PADDED_SUBBUF_SIZE _IOR(0xF6, 0x08, unsigned long) | |
| 41 | /* returns the maximum size for sub-buffers. */ | |
| 42 | #define RING_BUFFER_GET_MAX_SUBBUF_SIZE _IOR(0xF6, 0x09, unsigned long) | |
| 43 | /* returns the length to mmap. */ | |
| f3ed775e | 44 | #define RING_BUFFER_GET_MMAP_LEN _IOR(0xF6, 0x0A, unsigned long) |
| 16421f6e DG |
45 | /* returns the offset of the subbuffer belonging to the mmap reader. */ |
| 46 | #define RING_BUFFER_GET_MMAP_READ_OFFSET _IOR(0xF6, 0x0B, unsigned long) | |
| f3ed775e DG |
47 | /* flush the current sub-buffer */ |
| 48 | #define RING_BUFFER_FLUSH _IO(0xF6, 0x0C) | |
| 49 | ||
| 857aa172 | 50 | /* LTTng file descriptor ioctl */ |
| f3ed775e DG |
51 | #define LTTNG_KERNEL_SESSION _IO(0xF6, 0x40) |
| 52 | #define LTTNG_KERNEL_TRACER_VERSION \ | |
| 53 | _IOR(0xF6, 0x41, struct lttng_kernel_tracer_version) | |
| 8d609afd | 54 | #define LTTNG_KERNEL_TRACEPOINT_LIST _IO(0xF6, 0x42) |
| f3ed775e | 55 | #define LTTNG_KERNEL_WAIT_QUIESCENT _IO(0xF6, 0x43) |
| d0254c7c MD |
56 | #define LTTNG_KERNEL_CALIBRATE \ |
| 57 | _IOWR(0xF6, 0x44, struct lttng_kernel_calibrate) | |
| 8d609afd JD |
58 | |
| 59 | /* Session FD ioctl */ | |
| f3ed775e DG |
60 | #define LTTNG_KERNEL_METADATA \ |
| 61 | _IOW(0xF6, 0x50, struct lttng_channel_attr) | |
| f3ed775e DG |
62 | #define LTTNG_KERNEL_CHANNEL \ |
| 63 | _IOW(0xF6, 0x51, struct lttng_channel_attr) | |
| f3ed775e DG |
64 | #define LTTNG_KERNEL_SESSION_START _IO(0xF6, 0x52) |
| 65 | #define LTTNG_KERNEL_SESSION_STOP _IO(0xF6, 0x53) | |
| 8d609afd JD |
66 | |
| 67 | /* Channel FD ioctl */ | |
| f3ed775e | 68 | #define LTTNG_KERNEL_STREAM _IO(0xF6, 0x60) |
| f3ed775e DG |
69 | #define LTTNG_KERNEL_EVENT \ |
| 70 | _IOW(0xF6, 0x61, struct lttng_kernel_event) | |
| 71 | ||
| 857aa172 DG |
72 | /* Event and Channel FD ioctl */ |
| 73 | #define LTTNG_KERNEL_CONTEXT \ | |
| 74 | _IOW(0xF6, 0x70, struct lttng_kernel_context) | |
| 75 | ||
| f3ed775e DG |
76 | /* Event, Channel and Session ioctl */ |
| 77 | #define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x80) | |
| 78 | #define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x81) | |
| 16421f6e DG |
79 | |
| 80 | #endif /* _LTT_KERNEL_IOCTL_H */ |