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Restructure logging internal. Add raw logging capability

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This commit is contained in:
Nils O. Selåsdal
2012-11-08 23:25:46 +01:00
parent 7e11da894e
commit 8f53cc6563
2 changed files with 76 additions and 30 deletions
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src/ucore_logging.c
+60 -27
View File
@@ -37,6 +37,7 @@ struct uc_log_args {
int log_level;
const char *file;
int line;
int raw;
};
@@ -299,17 +300,19 @@ int uc_log_module_set_loglevel(int module, enum UC_LOG_LEVEL level)
return rc;
}
static inline void uc_vlog_internal(const struct uc_log_args *args, const char *fmt, va_list ap)
static inline void uc_vlog_file(const struct uc_log_args *args, const char *fmt, va_list ap)
{
struct uc_log_destination *dest = args->dest;
if(dest->dest_type != UC_LDEST_SYSLOG && dest->type.file.file != NULL) {
char time_buf[48];
time_t now;
struct tm t;
char time_buf[48];
time_t now;
struct tm t;
now = time(NULL);
localtime_r(&now, &t);
if(dest->type.file.file == NULL)
return;
now = time(NULL);
localtime_r(&now, &t);
if(!args->raw) {
snprintf(time_buf, sizeof time_buf, "%04d-%02d-%02d %02d:%02d:%02d",
t.tm_year + 1900,
t.tm_mon + 1,
@@ -318,42 +321,61 @@ static inline void uc_vlog_internal(const struct uc_log_args *args, const char *
t.tm_min,
t.tm_sec);
time_buf[sizeof time_buf -1] = 0;
if(dest->log_location) {
fprintf(dest->type.file.file, "[%s] %s %s:%d [%s] : ", uc_ll_2_str(args->log_level),
time_buf, args->file, args->line, args->module->short_name);
fprintf(dest->type.file.file, "[%s] %s %s:%d [%s] : ",
uc_ll_2_str(args->log_level), time_buf, args->file,
args->line, args->module->short_name);
} else {
fprintf(dest->type.file.file, "[%s] %s [%s]: ",
uc_ll_2_str(args->log_level), time_buf, args->module->short_name);
}
}
vfprintf(dest->type.file.file, fmt, ap);
vfprintf(dest->type.file.file, fmt, ap);
fflush(dest->type.file.file); //strictly not needed for stderr
// though stderr could be redirected to a file
fflush(dest->type.file.file); //strictly not needed for stderr
// though stderr could be redirected to a file
}
} else if(dest->dest_type == UC_LDEST_SYSLOG) {
int pri = uc_ll_2_syslog(args->log_level);
static inline void uc_vlog_syslog(const struct uc_log_args *args, const char *fmt, va_list ap)
{
struct uc_log_destination *dest = args->dest;
int pri = uc_ll_2_syslog(args->log_level);
//go via a buffer as we must do just 1 syslog call
char buf[4096];
int len = 0;
//go via a buffer as we must do just 1 syslog call
char buf[4096];
int offset = 0;
buf[0] = 0;
if(!args->raw) {
int rc;
if(dest->log_location) {
len = snprintf(buf, sizeof buf, "%s:%d ", args->file, args->line);
rc = snprintf(buf, sizeof buf, "%s:%d ", args->file, args->line);
if(rc < 0)
goto log;
offset += rc;
}
len += snprintf(&buf[len], sizeof buf - (size_t)len, "[%s] ", args->module->short_name);
vsnprintf(&buf[len], sizeof buf - (size_t)len, fmt, ap);
syslog(pri, "%s", buf);
rc = snprintf(&buf[offset], sizeof buf - (size_t)offset, "[%s] ",
args->module->short_name);
if(rc < 0)
goto log;
offset +=rc;
}
vsnprintf(&buf[offset], sizeof buf - (size_t)offset, fmt, ap);
log:
syslog(pri, "%s", buf);
}
void uc_logf(int log_level, int module, const char *file, int line, const char *fmt, ...)
void uc_logf(int log_level, int module, int raw,
const char *file, int line, const char *fmt, ...)
{
va_list ap;
struct uc_log_destination *dest;
@@ -386,12 +408,23 @@ void uc_logf(int log_level, int module, const char *file, int line, const char *
.log_level = log_level,
.file = file,
.line = line,
.raw = raw
};
//log func will mess with the va_list,
//so make a copy
va_copy(apc, ap);
uc_vlog_internal(&args, fmt, apc);
switch(dest->dest_type) {
case UC_LDEST_SYSLOG:
uc_vlog_syslog(&args, fmt, apc);
break;
case UC_LDEST_STDERR:
case UC_LDEST_FILE:
uc_vlog_file(&args, fmt, apc);
break;
}
va_end(apc);
}
}
src/ucore_logging.h
+16 -3
View File
@@ -210,12 +210,18 @@ int uc_log_reopen_files(void);
*/
void uc_log_init(struct uc_log_modules *user_modules);
void uc_logf(int log_level, int module, const char *file, int line, const char *fmt, ...) __attribute__((format(printf, 5, 6)));
void uc_logf(int log_level, int module, int raw,
const char *file, int line, const char *fmt, ...)
__attribute__((format(printf, 6, 7)));
#ifdef DEBUG
# define UC_DEBUGF(mod, fmt, ...) uc_logf(UC_LL_DEBUG, mod, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
# define UC_DEBUGF(mod, fmt, ...)\
uc_logf(UC_LL_DEBUG, mod,0 , __FILE__, __LINE__, fmt, ## __VA_ARGS__)
# define UC_DEBUGFR(mod, fmt, ...)\
uc_logf(UC_LL_DEBUG, mod,1 , , __LINE__, fmt, ## __VA_ARGS__)
#else
# define UC_DEBUGF(mod, fmt, ...)
# define UC_DEBUGFR(mod, fmt, ...)
#endif
/** Main macro that should be used for logging.
@@ -228,9 +234,16 @@ void uc_logf(int log_level, int module, const char *file, int line, const char *
* @param fmt printf style format string
* @param ... printf style arguments
*/
#define UC_LOGF(lvl, mod, fmt, ...) uc_logf(lvl, mod, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
#define UC_LOGF(lvl, mod, fmt, ...) \
uc_logf(lvl, mod, 0, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
/** Raw logging ,Like UC_LOGF, but only prints the supplied
* data, not timestamp, log level etc.
*/
#define UC_LOGFR(lvl, mod, fmt, ...) \
uc_logf(lvl, mod, 1, __FILE__, __LINE__, fmt, ## __VA_ARGS__)
#ifdef __cplusplus
}
#endif