Create logs for nfs-readahead-udev, logging to syslog. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1946283 Signed-off-by: Thiago Becker <tbecker@xxxxxxxxxx> --- tools/nfs-readahead-udev/Makefile.am | 2 +- tools/nfs-readahead-udev/log.h | 16 ++++++++++ tools/nfs-readahead-udev/main.c | 8 +++++ tools/nfs-readahead-udev/syslog.c | 47 ++++++++++++++++++++++++++++ 4 files changed, 72 insertions(+), 1 deletion(-) create mode 100644 tools/nfs-readahead-udev/log.h create mode 100644 tools/nfs-readahead-udev/syslog.c diff --git a/tools/nfs-readahead-udev/Makefile.am b/tools/nfs-readahead-udev/Makefile.am index 873cc175..5078db9a 100644 --- a/tools/nfs-readahead-udev/Makefile.am +++ b/tools/nfs-readahead-udev/Makefile.am @@ -1,5 +1,5 @@ libexec_PROGRAMS = nfs-readahead-udev -nfs_readahead_udev_SOURCES = main.c +nfs_readahead_udev_SOURCES = main.c syslog.c udev_rulesdir = /etc/udev/rules.d udev_rules_DATA = 99-nfs_bdi.rules diff --git a/tools/nfs-readahead-udev/log.h b/tools/nfs-readahead-udev/log.h new file mode 100644 index 00000000..2a14e552 --- /dev/null +++ b/tools/nfs-readahead-udev/log.h @@ -0,0 +1,16 @@ +#ifndef __ra_log_h__ +#define __ra_log_h__ +#include <stdarg.h> + +extern void log_open(void); +extern void log_close(void); + +extern void debug(const char *, ...); +extern void info(const char *, ...); +extern void notice(const char *, ...); +extern void warn(const char *, ...); +extern void err(const char *, ...); +extern void crit(const char *, ...); +extern void alert(const char *, ...); +extern void emerg(const char *, ...); +#endif diff --git a/tools/nfs-readahead-udev/main.c b/tools/nfs-readahead-udev/main.c index e454108e..dd2c9f8c 100644 --- a/tools/nfs-readahead-udev/main.c +++ b/tools/nfs-readahead-udev/main.c @@ -1,7 +1,15 @@ #include <stdio.h> +#include "log.h" + int main(int argc, char **argv, char **envp) { unsigned int readahead = 128; + + log_open(); + + info("Setting the readahead to 128\n"); + + log_close(); printf("%d\n", readahead); } diff --git a/tools/nfs-readahead-udev/syslog.c b/tools/nfs-readahead-udev/syslog.c new file mode 100644 index 00000000..5eeb2579 --- /dev/null +++ b/tools/nfs-readahead-udev/syslog.c @@ -0,0 +1,47 @@ +#include <syslog.h> +#include <stdio.h> +#include <stdlib.h> + +#include "log.h" + +#define MSG_SIZE (1024 * sizeof(char)) + +void log_open(void) +{ + openlog("nfs_readahead", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1); + setlogmask(LOG_UPTO(LOG_DEBUG)); +} + +void log_close(void) +{ + closelog(); +} + +static void vlog(int level, const char *fmt, va_list *args) +{ + char *msg = malloc(MSG_SIZE); + if (!msg) + return; + + vsnprintf(msg, MSG_SIZE, fmt, *args); + syslog(level, "%s", msg); + + free(msg); +} + +#define GENERATE_LOGGER(name, level) \ + void name(const char *fmt, ...) { \ + va_list args; \ + va_start(args, fmt); \ + vlog(LOG_##level, fmt, &args); \ + va_end(args); \ +} + +GENERATE_LOGGER(debug, DEBUG); +GENERATE_LOGGER(info, INFO); +GENERATE_LOGGER(notice, NOTICE); +GENERATE_LOGGER(warn, WARNING); +GENERATE_LOGGER(err, ERR); +GENERATE_LOGGER(crit, CRIT); +GENERATE_LOGGER(alert, ALERT); +GENERATE_LOGGER(emerg, EMERG); -- 2.35.1
