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45 lines
984 B
C
45 lines
984 B
C
/* A slog is a simple log. Basically extracted from antirez/redis. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <time.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <pthread.h>
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#include "slog.h"
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#include "server.h"
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#include "conf.h"
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void
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slog(struct server *s, log_level level,
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const char *body, size_t sz) {
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const char *c = ".-*#";
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time_t now = time(NULL);
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static FILE *fp = NULL;
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char buf[64];
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char msg[124];
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static pid_t self = 0;
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if(!self) self = getpid();
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if(level > s->cfg->verbosity) return; /* too verbose */
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pthread_spin_lock(&s->log_lock);
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if(!fp) fp = (s->cfg->logfile == NULL) ? stdout : fopen(s->cfg->logfile, "a");
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if(!fp) goto end;
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/* limit message size */
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snprintf(msg, sz + 1 > sizeof(msg) ? sizeof(msg) : sz + 1, "%s", body);
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strftime(buf,sizeof(buf),"%d %b %H:%M:%S",localtime(&now));
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fprintf(fp,"[%d] %s %c %s\n", (int)self, buf, c[level], msg);
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fflush(fp);
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end:
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pthread_spin_unlock(&s->log_lock);
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}
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