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#include <s.h>
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "logerr.h"
#include "trace.h"
static pthread_key_t
LEVEL_KEY;
static pthread_key_t
STREAM_KEY;
static pthread_once_t
ONCE = PTHREAD_ONCE_INIT;
static void
init(void) {
assert(pthread_key_create(&LEVEL_KEY, NULL) == 0);
assert(pthread_key_create(&STREAM_KEY, NULL) == 0);
assert(pthread_setspecific(LEVEL_KEY, (void *)TraceLevel_INFO) == 0);
assert(pthread_setspecific(LEVEL_KEY, stderr) == 0);
}
void
vftracef(
const char *const file,
const char *const function,
const int lineno,
FILE *restrict stream,
const enum TraceLevel level,
const char *restrict format,
va_list args
) {
assert(pthread_once(&ONCE, init) == 0);
const enum TraceLevel current_level = (enum TraceLevel)pthread_getspecific(LEVEL_KEY);
if (level > current_level) {
return;
}
if (fprintf(stream, "%s:%s:%d: ", file, function, lineno) < 0) {
logerr("fprintf() < 0: %s", strerror(errno));
}
if (vfprintf(stream, format, args) < 0) {
perror(__FILE__ ":vtrace(): vfprintf() < 0");
}
if (fprintf(stream, "\n") < 0) {
perror(__FILE__ ":vtrace(): fprintf() < 0");
}
}
void
ftracef(
const char *const file,
const char *const function,
const int lineno,
FILE *restrict stream,
const enum TraceLevel level,
const char *restrict format,
...
) {
va_list args;
va_start(args, format);
vftracef(file, function, lineno, stream, level, format, args);
va_end(args);
}
void
tracef(
const char *const file,
const char *const function,
const int lineno,
const enum TraceLevel level,
const char *restrict format,
...
) {
assert(pthread_once(&ONCE, init) == 0);
va_list args;
va_start(args, format);
vftracef(file, function, lineno, pthread_getspecific(STREAM_KEY), level, format, args);
va_end(args);
}
int
trace_set_stream(FILE *stream) {
return pthread_setspecific(STREAM_KEY, stream);
}
int
trace_set_level(const enum TraceLevel level) {
assert(level >= TraceLevel_NONE);
assert(level <= TraceLevel_DEBUG);
return pthread_setspecific(LEVEL_KEY, (void *)level);
}
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