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#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <pthread.h>
#include <execinfo.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "common.h"
int common_debug_level = 0;
static int common_logfd[2] = {2, -1};
static char common_logfile[256] = "";
static pthread_mutex_t m_common = PTHREAD_MUTEX_INITIALIZER;
void common_init(void){
common_logfd[0] = fileno(stderr);
common_logfd[1] = -1;
}
int common_set_smbnetfs_debug_level(int level){
if ((level < 0) || (level > 10)) return 0;
DPRINTF(8, "level=%d\n", level);
g_atomic_int_set(&common_debug_level, level);
return 1;
}
int common_set_log_file(const char *logfile){
DPRINTF(7, "logfile=%s\n", logfile);
pthread_mutex_lock(&m_common);
if ( ! ((logfile != NULL) && (strcmp(common_logfile, logfile) == 0))){
if (common_logfd[1] != -1){
close(common_logfd[1]);
memset(common_logfile, 0, sizeof(common_logfile));
common_logfd[1] = -1;
}
if (logfile != NULL)
strncpy(common_logfile, logfile, sizeof(common_logfile) - 1);
if (*common_logfile != '\0'){
common_logfd[1] = open(common_logfile, O_WRONLY | O_APPEND | O_CREAT, 0644);
if (common_logfd[1] == -1){
memset(common_logfile, 0, sizeof(common_logfile));
/* actually we get here if strcmp(common_logfile, logfile) != 0, *
* so we can use variable logfile instead of common_logfile */
pthread_mutex_unlock(&m_common);
DPRINTF(0, "Can't open logfile '%s', error : %s.\n", logfile, strerror(errno));
return 0;
}
}
}
pthread_mutex_unlock(&m_common);
return 1;
}
void common_debug_print(const char *fmt, ...){
int i;
va_list ap;
pthread_mutex_lock(&m_common);
for(i = 0; i < 2; i++){
if (common_logfd[i] == -1) continue;
va_start(ap, fmt);
vdprintf(common_logfd[i], fmt, ap);
va_end(ap);
}
pthread_mutex_unlock(&m_common);
}
void common_print_backtrace(void){
int i;
#ifdef HAVE_BACKTRACE
void *array[200];
size_t size;
size = backtrace(array, sizeof(array) / sizeof(array[0]));
#endif /* HAVE_BACKTRACE */
for(i = 0; i < 2; i++){
if (common_logfd[i] == -1) continue;
dprintf(common_logfd[i], "%d->%s: dumping ...\n", getpid(), __FUNCTION__);
#ifdef HAVE_BACKTRACE
backtrace_symbols_fd(array, size, common_logfd[i]);
#endif /* HAVE_BACKTRACE */
}
}
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