olaf@57: #include "logging.h"
olaf@57: #include <stdlib.h>
universe@80: #include <string.h>
universe@81: #include <stdarg.h>
olaf@57: 
universe@80: UcxLogger *ucx_logger_new(FILE *stream, unsigned int level, unsigned int mask) {
olaf@57:     UcxLogger *logger = (UcxLogger*) malloc(sizeof(UcxLogger));
olaf@57:     if (logger != NULL) {
olaf@57:         logger->stream = stream;
universe@81:         logger->writer = fwrite;
olaf@57:         logger->level = level;
universe@80:         logger->mask = mask;
universe@80:         logger->levels = ucx_map_new(8);
universe@80:         
universe@80:         unsigned int l;
universe@80:         l = UCX_LOGGER_ERROR;
universe@80:         ucx_map_int_put(logger->levels, l, "[ERROR]");
universe@80:         l = UCX_LOGGER_WARN;
universe@80:         ucx_map_int_put(logger->levels, l, "[WARNING]");
universe@80:         l = UCX_LOGGER_INFO;
universe@80:         ucx_map_int_put(logger->levels, l, "[INFO]");
universe@80:         l = UCX_LOGGER_TRACE;
universe@80:         ucx_map_int_put(logger->levels, l, "[TRACE]");
olaf@57:     }
olaf@57: 
olaf@57:     return logger;
olaf@57: }
olaf@57: 
universe@80: void ucx_logger_free(UcxLogger *logger) {
universe@80:     ucx_map_free(logger->levels);
universe@80:     free(logger);
universe@80: }
universe@80: 
universe@81: void ucx_logger_setoutput(UcxLogger *logger, FILE *stream,
universe@81:         size_t(*writer)(const void*,size_t,size_t,FILE*)) {
universe@81:     if (stream) {
universe@81:         logger->stream = stream;
universe@81:     }
universe@81:     if (writer) {
universe@81:         logger->writer = writer;
universe@81:     }
universe@81: }
universe@81: 
universe@81: void ucx_logger_logf(UcxLogger *logger, unsigned int level, const char* file,
universe@81:         const unsigned int line, const char *format, ...) {
olaf@57:     if (level <= logger->level) {
universe@81:         const size_t max = 4096; // estimated maximum message length
universe@81:         char msg[max];
universe@81:         char *text;
universe@81:         size_t k = 0;
universe@81:         size_t n;
universe@80:         
universe@80:         if ((logger->mask & UCX_LOGGER_LEVEL) > 0) {
universe@81:             text = (char*) ucx_map_int_get(logger->levels, level);
universe@81:             n = strlen(text);
universe@81:             memcpy(msg+k, text, n);
universe@81:             k += n;
universe@81:             msg[k++] = ' ';
universe@80:         }
universe@80:         // TODO: timestamp
universe@80:         if ((logger->mask & UCX_LOGGER_SOURCE) > 0) {
universe@81:             n = strlen(file);
universe@81:             memcpy(msg+k, file, n);
universe@81:             k += n;
universe@81:             k += sprintf(msg+k, ":%d ", line);
universe@80:         }
universe@80:         
universe@81:         msg[k++] = '-'; msg[k++] = ' ';
universe@81:         
universe@81:         va_list args;
universe@81:         va_start (args, format);
universe@81:         k += vsnprintf(msg+k, max-k-1, format, args);
universe@81:         va_end (args);        
universe@81:         
universe@80:         msg[k++] = '\n';
universe@80:         
universe@81:         logger->writer(msg, 1, k, logger->stream);
olaf@57:         fflush(logger->stream);
olaf@57:     }
olaf@57: }