table of contents
| KMSG_DUMP_GET_BUFFER(9) | Driver Basics | KMSG_DUMP_GET_BUFFER(9) |
NAME¶
kmsg_dump_get_buffer - copy kmsg log lines
SYNOPSIS¶
bool kmsg_dump_get_buffer(struct kmsg_dumper * dumper, bool syslog, char * buf, size_t size, size_t * len);
ARGUMENTS¶
dumper
registered kmsg dumper
syslog
include the “<4>” prefixes
buf
buffer to copy the line to
size
maximum size of the buffer
len
length of line placed into buffer
DESCRIPTION¶
Start at the end of the kmsg buffer and fill the provided buffer with as many of the the *youngest* kmsg records that fit into it. If the buffer is large enough, all available kmsg records will be copied with a single call.
Consecutive calls will fill the buffer with the next block of available older records, not including the earlier retrieved ones.
A return value of FALSE indicates that there are no more records to read.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |