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Send a message to the system logger (varargs)
#include <stdio.h>
#include <sys/slog.h>
int vslogf( int opcode,
int severity,
const char * fmt,
va_list arg );
- opcode
- A combination of a major and minor code.
Create the opcode using the
_SLOG_SETCODE(major, minor)
macro that's defined in <sys/slog.h>.
The major and minor codes are defined in
<sys/slogcodes.h>.
- severity
- The severity of the log message; see
“Severity levels,”
in the documentation for slogf().
- fmt
- A standard
printf()
string.
- arg
- A variable-argument list of the additional arguments, which you
must have initialized with the
va_start()
macro.
libc
Use the -l c option to
qcc
to link against this library.
This library is usually included automatically.
|
This function is in libc.a, but not in libc.so
(in order to save space). |
The slog*() functions send log messages to the system logger,
slogger.
To send formatted messages, use vslogf().
If you have programs that scan log files for specified codes,
you can use
slogb()
or
slogi()
to send a block of structures or int's, respectively.
This function is a “varargs” version of
slogf().
QNX Neutrino
Safety: | |
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
slogb(),
slogi(),
slogf()
slogger,
sloginfo
in the Utilities Reference
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