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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <grpc/support/port_platform.h>
#ifdef GPR_WIN32
#include <grpc/support/log_win32.h>
#include <grpc/support/log.h>
#include <grpc/support/alloc.h>
#include <stdio.h>
#include <stdarg.h>
void gpr_log(const char *file, int line, gpr_log_severity severity,
const char *format, ...) {
char *message = NULL;
va_list args;
int ret;
/* Determine the length. */
va_start(args, format);
ret = _vscprintf(format, args);
va_end(args);
if (!(0 <= ret && ret < ~(size_t)0)) {
message = NULL;
} else {
/* Allocate a new buffer, with space for the NUL terminator. */
size_t strp_buflen = (size_t)ret + 1;
message = gpr_malloc(strp_buflen);
/* Print to the buffer. */
va_start(args, format);
ret = vsnprintf_s(message, strp_buflen, _TRUNCATE, format, args);
va_end(args);
if (ret != strp_buflen - 1) {
/* This should never happen. */
gpr_free(message);
message = NULL;
}
}
gpr_log_message(file, line, severity, message);
gpr_free(message);
}
/* Simple starter implementation */
void gpr_default_log(gpr_log_func_args *args) {
fprintf(stderr, "%s.%u %s:%d: %s\n",
gpr_log_severity_string(args->severity), GetCurrentThreadId(),
args->file, args->line, args->message);
}
/* Arguable, this could become a public function. But hardly
* anything beside the Windows implementation should use
* it, so, never mind...*/
#if defined UNICODE || defined _UNICODE
static char *tchar_to_char(LPWSTR input) {
char *ret;
int needed = WideCharToMultiByte(CP_UTF8, 0, input, -1, NULL, 0, NULL, NULL);
if (needed == 0) return NULL;
ret = gpr_malloc(needed + 1);
WideCharToMultiByte(CP_UTF8, 0, input, -1, ret, needed, NULL, NULL);
ret[needed] = 0;
return ret;
}
#else
static char *tchar_to_char(LPSTR input) {
return gpr_strdup(input);
}
#endif
char *gpr_format_message(DWORD messageid) {
LPTSTR tmessage;
char *message;
DWORD status = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL, messageid,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)(&tmessage), 0, NULL);
message = tchar_to_char(tmessage);
LocalFree(tmessage);
return message;
}
#endif /* GPR_WIN32 */
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