mirror of
https://github.com/solemnwarning/ipxwrapper
synced 2024-12-30 16:45:37 +01:00
dcd484702e
Various fixups to build under win-builds.org toolchain rather than MinGW. No longer builds under MinGW as I have removed headers/definitions that it lacks.
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/* ipxwrapper - Logging functions
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* Copyright (C) 2011 Daniel Collins <solemnwarning@solemnwarning.net>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 51
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* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <winsock2.h>
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "ipxwrapper.h"
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#include "common.h"
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static HANDLE log_fh = NULL;
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static HANDLE log_mutex = NULL;
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void log_open(const char *file) {
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if(!(log_mutex = CreateMutex(NULL, FALSE, NULL))) {
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abort();
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}
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log_fh = CreateFile(
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file,
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL,
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OPEN_ALWAYS,
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FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH,
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NULL
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);
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if(log_fh == INVALID_HANDLE_VALUE) {
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log_fh = NULL;
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}
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}
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void log_close() {
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if(log_fh) {
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CloseHandle(log_fh);
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log_fh = NULL;
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}
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CloseHandle(log_mutex);
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log_mutex = NULL;
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}
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void log_printf(enum ipx_log_level level, const char *fmt, ...) {
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DWORD called = GetTickCount();
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if(level < min_log_level) {
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return;
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}
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WaitForSingleObject(log_mutex, INFINITE);
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if(!log_fh) {
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ReleaseMutex(log_mutex);
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return;
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}
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va_list argv;
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char msg[1024], tstr[64];
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va_start(argv, fmt);
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vsnprintf(msg, 1024, fmt, argv);
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va_end(argv);
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snprintf(tstr, 64, "[%u.%02u, thread %u] ", (unsigned int)(called/1000), (unsigned int)((called % 1000) / 10), (unsigned int)GetCurrentThreadId());
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OVERLAPPED off;
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off.Offset = 0;
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off.OffsetHigh = 0;
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off.hEvent = 0;
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if(!LockFileEx(log_fh, LOCKFILE_EXCLUSIVE_LOCK, 0, 1, 0, &off)) {
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ReleaseMutex(log_mutex);
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return;
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}
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if(SetFilePointer(log_fh, 0, NULL, FILE_END) != INVALID_SET_FILE_POINTER) {
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DWORD written;
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WriteFile(log_fh, tstr, strlen(tstr), &written, NULL);
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WriteFile(log_fh, msg, strlen(msg), &written, NULL);
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WriteFile(log_fh, "\r\n", 2, &written, NULL);
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}
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UnlockFile(log_fh, 0, 0, 1, 0);
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ReleaseMutex(log_mutex);
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}
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