100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
//
|
|
// ZoneMinder Fifo Debug
|
|
// Copyright (C) 2019 ZoneMinder LLC
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License
|
|
// as published by the Free Software Foundation; either version 2
|
|
// of the License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
//
|
|
|
|
#include "zm_fifo_debug.h"
|
|
#include "zm_fifo.h"
|
|
#include "zm_monitor.h"
|
|
#include "zm_signal.h"
|
|
#include <fcntl.h>
|
|
#include <sys/file.h>
|
|
#include <unistd.h>
|
|
|
|
#define RAW_BUFFER 512
|
|
static bool zm_fifodbg_inited = false;
|
|
FILE *zm_fifodbg_log_fd = nullptr;
|
|
char zm_fifodbg_log[PATH_MAX] = "";
|
|
|
|
static bool zmFifoDbgOpen() {
|
|
if ( zm_fifodbg_log_fd )
|
|
fclose(zm_fifodbg_log_fd);
|
|
zm_fifodbg_log_fd = nullptr;
|
|
signal(SIGPIPE, SIG_IGN);
|
|
Fifo::fifo_create_if_missing(zm_fifodbg_log);
|
|
int fd = open(zm_fifodbg_log, O_WRONLY|O_NONBLOCK|O_TRUNC);
|
|
if ( fd < 0 )
|
|
return false;
|
|
int res = flock(fd, LOCK_EX | LOCK_NB);
|
|
if ( res < 0 ) {
|
|
close(fd);
|
|
return false;
|
|
}
|
|
zm_fifodbg_log_fd = fdopen(fd, "wb");
|
|
if ( zm_fifodbg_log_fd == nullptr ) {
|
|
close(fd);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
int zmFifoDbgInit(Monitor *monitor) {
|
|
zm_fifodbg_inited = true;
|
|
snprintf(zm_fifodbg_log, sizeof(zm_fifodbg_log), "%s/dbgpipe-%u.log",
|
|
staticConfig.PATH_SOCKS.c_str(), monitor->Id());
|
|
zmFifoDbgOpen();
|
|
return 1;
|
|
}
|
|
|
|
void zmFifoDbgOutput(
|
|
int hex,
|
|
const char * const file,
|
|
const int line,
|
|
const int level,
|
|
const char *fstring,
|
|
...
|
|
) {
|
|
char dbg_string[8192];
|
|
int str_size = sizeof(dbg_string);
|
|
|
|
va_list arg_ptr;
|
|
if ( (!zm_fifodbg_inited) || ( !zm_fifodbg_log_fd && !zmFifoDbgOpen() ) )
|
|
return;
|
|
|
|
char *dbg_ptr = dbg_string;
|
|
va_start(arg_ptr, fstring);
|
|
if ( hex ) {
|
|
unsigned char *data = va_arg(arg_ptr, unsigned char *);
|
|
int len = va_arg(arg_ptr, int);
|
|
dbg_ptr += snprintf(dbg_ptr, str_size-(dbg_ptr-dbg_string), "%d:", len);
|
|
for ( int i = 0; i < len; i++ ) {
|
|
dbg_ptr += snprintf(dbg_ptr, str_size-(dbg_ptr-dbg_string), " %02x", data[i]);
|
|
}
|
|
} else {
|
|
dbg_ptr += vsnprintf(dbg_ptr, str_size-(dbg_ptr-dbg_string), fstring, arg_ptr);
|
|
}
|
|
va_end(arg_ptr);
|
|
strncpy(dbg_ptr++, "\n", 2);
|
|
int res = fwrite(dbg_string, dbg_ptr-dbg_string, 1, zm_fifodbg_log_fd);
|
|
if ( res != 1 ) {
|
|
fclose(zm_fifodbg_log_fd);
|
|
zm_fifodbg_log_fd = nullptr;
|
|
} else {
|
|
fflush(zm_fifodbg_log_fd);
|
|
}
|
|
}
|