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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "Backend.h"
#include <cstdio>
#include <cstdarg>
#include <vector>
#ifdef __cplusplus
extern "C" {
#endif
extern char* log_formatter_format(const char* section, int level, const char* fmt, va_list arguments);
namespace {
std::vector<log_sink_ptr>& log_formatter_getSinks() {
static std::vector<log_sink_ptr> sinks;
return sinks;
}
std::vector<log_cleanup_ptr>& log_formatter_getCleanupFuncs() {
static std::vector<log_cleanup_ptr> cleanupFuncs;
return cleanupFuncs;
}
}
void log_backend_registerSink(log_sink_ptr sink) {
log_formatter_getSinks().push_back(sink);
}
void log_backend_unregisterSink(log_sink_ptr sink) {
std::vector<log_sink_ptr>& sinks = log_formatter_getSinks();
std::vector<log_sink_ptr>::iterator si;
for (si = sinks.begin(); si != sinks.end(); ++si) {
if (*si == sink) {
sinks.erase(si);
break;
}
}
}
void log_backend_registerCleanup(log_cleanup_ptr cleanupFunc) {
log_formatter_getCleanupFuncs().push_back(cleanupFunc);
}
void log_backend_unregisterCleanup(log_cleanup_ptr cleanupFunc) {
std::vector<log_cleanup_ptr>& cleanupFuncs = log_formatter_getCleanupFuncs();
std::vector<log_cleanup_ptr>::iterator si;
for (si = cleanupFuncs.begin(); si != cleanupFuncs.end(); ++si) {
if (*si == cleanupFunc) {
cleanupFuncs.erase(si);
break;
}
}
}
/**
* @name logging_backend
* ILog.h backend implementation.
*/
///@{
/// Eventually formats and routes the record to all sinks
void log_backend_record(const char* section, int level, const char* fmt,
va_list arguments)
{
const std::vector<log_sink_ptr>& sinks = log_formatter_getSinks();
if (sinks.empty()) {
// no sinks are registered
static bool warned = false;
if (!warned) {
fprintf(stderr,
"\nWARNING: A log message was recorded, but no sink is registered."
"\n (there will be no further warnings)\n\n");
warned = true;
}
} else {
// format the record
char* record = log_formatter_format(section, level, fmt, arguments);
// sink the record
std::vector<log_sink_ptr>::const_iterator si;
for (si = sinks.begin(); si != sinks.end(); ++si) {
(*si)(section, level, record);
}
delete[] record;
}
}
/// Passes on a cleanup request to all sinks
void log_backend_cleanup() {
const std::vector<log_cleanup_ptr>& cleanupFuncs = log_formatter_getCleanupFuncs();
std::vector<log_cleanup_ptr>::const_iterator si;
for (si = cleanupFuncs.begin(); si != cleanupFuncs.end(); ++si) {
(*si)();
}
}
///@}
#ifdef __cplusplus
} // extern "C"
#endif
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