libmdbx/test/log.cc
2018-03-19 16:51:10 +03:00

290 lines
6.3 KiB
C++

/*
* Copyright 2017-2018 Leonid Yuriev <leo@yuriev.ru>
* and other libmdbx authors: please see AUTHORS file.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include "test.h"
static void fflushall() { fflush(nullptr); }
void failure(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
fflushall();
logging::output(logging::failure, fmt, ap);
va_end(ap);
fflushall();
exit(EXIT_FAILURE);
}
const char *test_strerror(int errnum) {
static __thread char buf[1024];
return mdbx_strerror_r(errnum, buf, sizeof(buf));
}
void __noreturn failure_perror(const char *what, int errnum) {
failure("%s failed: %s (%d)\n", what, test_strerror(errnum), errnum);
}
//-----------------------------------------------------------------------------
namespace logging {
static std::string prefix;
static std::string suffix;
static loglevel level;
static FILE *last;
void setup(loglevel _level, const std::string &_prefix) {
level = (_level > error) ? failure : _level;
prefix = _prefix;
}
void setup(const std::string &_prefix) { prefix = _prefix; }
const char *level2str(const loglevel alevel) {
switch (alevel) {
default:
return "invalid/unknown";
case extra:
return "extra";
case trace:
return "trace";
case verbose:
return "verbose";
case info:
return "info";
case notice:
return "notice";
case warning:
return "warning";
case error:
return "error";
case failure:
return "failure";
}
}
bool output(const loglevel priority, const char *format, ...) {
if (priority < level)
return false;
va_list ap;
va_start(ap, format);
output(priority, format, ap);
va_end(ap);
return true;
}
bool output(const logging::loglevel priority, const char *format, va_list ap) {
if (last) {
putc('\n', last);
fflush(last);
last = nullptr;
}
if (priority < level)
return false;
chrono::time now = chrono::now_realtime();
struct tm tm;
#ifdef _MSC_VER
int rc = _localtime32_s(&tm, (const __time32_t *)&now.utc);
#else
time_t time = now.utc;
int rc = localtime_r(&time, &tm) ? MDBX_SUCCESS : errno;
#endif
if (rc != MDBX_SUCCESS)
failure_perror("localtime_r()", rc);
last = stdout;
fprintf(last,
"[ %02d%02d%02d-%02d:%02d:%02d.%06d_%05u %-10s %.4s ] %s" /* TODO */,
tm.tm_year - 100, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min,
tm.tm_sec, chrono::fractional2us(now.fractional), osal_getpid(),
prefix.c_str(), level2str(priority), suffix.c_str());
va_list ones;
memset(&ones, 0, sizeof(ones)) /* zap MSVC and other stupid compilers */;
if (priority >= error)
va_copy(ones, ap);
vfprintf(last, format, ap);
size_t len = strlen(format);
char end = len ? format[len - 1] : '\0';
switch (end) {
default:
putc('\n', last);
// fall through
case '\n':
fflush(last);
last = nullptr;
// fall through
case ' ':
case '_':
case ':':
case '|':
case ',':
case '\t':
case '\b':
case '\r':
case '\0':
break;
}
if (priority >= error) {
if (last != stderr) {
fprintf(stderr, "[ %05u %-10s %.4s ] %s", osal_getpid(), prefix.c_str(),
level2str(priority), suffix.c_str());
vfprintf(stderr, format, ones);
if (end != '\n')
putc('\n', stderr);
fflush(stderr);
}
va_end(ones);
}
return true;
}
bool feed(const char *format, va_list ap) {
if (!last)
return false;
vfprintf(last, format, ap);
size_t len = strlen(format);
if (len && format[len - 1] == '\n') {
fflush(last);
last = nullptr;
}
return true;
}
bool feed(const char *format, ...) {
if (!last)
return false;
va_list ap;
va_start(ap, format);
feed(format, ap);
va_end(ap);
return true;
}
local_suffix::local_suffix(const char *c_str)
: trim_pos(suffix.size()), indent(0) {
suffix.append(c_str);
}
local_suffix::local_suffix(const std::string &str)
: trim_pos(suffix.size()), indent(0) {
suffix.append(str);
}
void local_suffix::push() {
indent += 1;
suffix.push_back('\t');
}
void local_suffix::pop() {
assert(indent > 0);
if (indent > 0) {
indent -= 1;
suffix.pop_back();
}
}
local_suffix::~local_suffix() { suffix.erase(trim_pos); }
} /* namespace log */
void log_extra(const char *msg, ...) {
if (logging::extra >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::extra, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_trace(const char *msg, ...) {
if (logging::trace >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::trace, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_verbose(const char *msg, ...) {
if (logging::verbose >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::verbose, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_info(const char *msg, ...) {
if (logging::info >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::info, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_notice(const char *msg, ...) {
if (logging::notice >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::notice, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_warning(const char *msg, ...) {
if (logging::warning >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::warning, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_error(const char *msg, ...) {
if (logging::error >= logging::level) {
va_list ap;
va_start(ap, msg);
logging::output(logging::error, msg, ap);
va_end(ap);
} else
logging::last = nullptr;
}
void log_trouble(const char *where, const char *what, int errnum) {
log_error("%s: %s %s", where, what, test_strerror(errnum));
}
bool log_enabled(const logging::loglevel priority) {
return (priority >= logging::level);
}
void log_flush(void) { fflushall(); }