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lttng: Default to not storing buffer content

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Signed-off-by: Adam Crume <adamcrume@gmail.com>
This commit is contained in:
Adam Crume 2014-07-21 15:35:32 -07:00 committed by Sage Weil
parent 0421b69278
commit 4109879f4e
1 changed files with 21 additions and 1 deletions
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22
src/tracing/tracing-common.h
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@ -1,7 +1,11 @@
#if !defined(TRACING_COMMON_H)
#define TRACING_COMMON_H
#define CEPH_TRACE_BUF_TRUNC_LEN 32
// Amount of buffer data to dump when using ceph_ctf_sequence or ceph_ctf_sequencep.
// If 0, then *_data field is omitted entirely.
#if !defined(CEPH_TRACE_BUF_TRUNC_LEN)
#define CEPH_TRACE_BUF_TRUNC_LEN 0
#endif
// TODO: This is GCC-specific. Replace CEPH_MAX and CEPH_MIN with standard macros, if possible.
#define CEPH_MAX(a,b) \
@ -33,14 +37,22 @@
// val should have type type*
// lenval should have type lentype
#if CEPH_TRACE_BUF_TRUNC_LEN > 0
#define ceph_ctf_sequence(type, field, val, lentype, lenval) \
ctf_integer_hex(void*, field, val) \
ctf_sequence(type, field##_data, (val) == NULL ? "" : (val), lentype, (val) == NULL ? 0 : CEPH_MIN((lenval), CEPH_TRACE_BUF_TRUNC_LEN)) \
ctf_integer(uint8_t, field##_isnull, (val) == NULL) \
ctf_integer(lentype, field##_len, lenval)
#else
#define ceph_ctf_sequence(type, field, val, lentype, lenval) \
ctf_integer_hex(void*, field, val) \
ctf_integer(uint8_t, field##_isnull, (val) == NULL) \
ctf_integer(lentype, field##_len, lenval)
#endif
// val should have type type**
// lenval should have type lentype*
#if CEPH_TRACE_BUF_TRUNC_LEN > 0
#define ceph_ctf_sequencep(type, field, val, lentype, lenval) \
ctf_integer_hex(void*, field, val) \
ctf_sequence(type, \
@ -52,6 +64,14 @@
ctf_integer(uint8_t, field##_data_isnull, ((val) == NULL || *(val) == NULL)) \
ctf_integer(lentype, field##_len, (lenval) == NULL ? 0 : *(lenval)) \
ctf_integer(lentype, field##_len_isnull, (lenval) == NULL)
#else
#define ceph_ctf_sequencep(type, field, val, lentype, lenval) \
ctf_integer_hex(void*, field, val) \
ctf_integer(uint8_t, field##_isnull, (val) == NULL) \
ctf_integer(uint8_t, field##_data_isnull, ((val) == NULL || *(val) == NULL)) \
ctf_integer(lentype, field##_len, (lenval) == NULL ? 0 : *(lenval)) \
ctf_integer(lentype, field##_len_isnull, (lenval) == NULL)
#endif
// p should be of type struct timeval*
#define ceph_ctf_timevalp(field, p) \