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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <assert.h>
#include <direct.h>
#include <malloc.h>
#include <string.h>
#include <time.h>
#include "uv.h"
#include "internal.h"
#include "tlhelp32.h"
int uv_utf16_to_utf8(const wchar_t* utf16Buffer, size_t utf16Size,
char* utf8Buffer, size_t utf8Size) {
return WideCharToMultiByte(CP_UTF8,
0,
utf16Buffer,
utf16Size,
utf8Buffer,
utf8Size,
NULL,
NULL);
}
int uv_utf8_to_utf16(const char* utf8Buffer, wchar_t* utf16Buffer,
size_t utf16Size) {
return MultiByteToWideChar(CP_UTF8,
0,
utf8Buffer,
-1,
utf16Buffer,
utf16Size);
}
int uv_exepath(char* buffer, size_t* size) {
int retVal;
size_t utf16Size;
wchar_t* utf16Buffer;
if (!buffer || !size) {
return -1;
}
utf16Buffer = (wchar_t*)malloc(sizeof(wchar_t) * *size);
if (!utf16Buffer) {
retVal = -1;
goto done;
}
/* Get the path as UTF-16 */
utf16Size = GetModuleFileNameW(NULL, utf16Buffer, *size - 1);
if (utf16Size <= 0) {
/* uv__set_sys_error(loop, GetLastError()); */
retVal = -1;
goto done;
}
utf16Buffer[utf16Size] = L'\0';
/* Convert to UTF-8 */
*size = uv_utf16_to_utf8(utf16Buffer, utf16Size, buffer, *size);
if (!*size) {
/* uv__set_sys_error(loop, GetLastError()); */
retVal = -1;
goto done;
}
buffer[*size] = '\0';
retVal = 0;
done:
if (utf16Buffer) {
free(utf16Buffer);
}
return retVal;
}
uv_err_t uv_cwd(char* buffer, size_t size) {
uv_err_t err;
size_t utf8Size;
wchar_t* utf16Buffer = NULL;
if (!buffer || !size) {
err.code = UV_EINVAL;
goto done;
}
utf16Buffer = (wchar_t*)malloc(sizeof(wchar_t) * size);
if (!utf16Buffer) {
err.code = UV_ENOMEM;
goto done;
}
if (!_wgetcwd(utf16Buffer, size - 1)) {
err = uv__new_sys_error(_doserrno);
goto done;
}
utf16Buffer[size - 1] = L'\0';
/* Convert to UTF-8 */
utf8Size = uv_utf16_to_utf8(utf16Buffer, -1, buffer, size);
if (utf8Size == 0) {
err = uv__new_sys_error(GetLastError());
goto done;
}
buffer[utf8Size] = '\0';
err = uv_ok_;
done:
if (utf16Buffer) {
free(utf16Buffer);
}
return err;
}
uv_err_t uv_chdir(const char* dir) {
uv_err_t err;
wchar_t* utf16Buffer = NULL;
size_t utf16Size;
if (!dir) {
err.code = UV_EINVAL;
goto done;
}
utf16Size = uv_utf8_to_utf16(dir, NULL, 0);
if (!utf16Size) {
err = uv__new_sys_error(GetLastError());
goto done;
}
utf16Buffer = (wchar_t*)malloc(sizeof(wchar_t) * utf16Size);
if (!utf16Buffer) {
err.code = UV_ENOMEM;
goto done;
}
if (!uv_utf8_to_utf16(dir, utf16Buffer, utf16Size)) {
err = uv__new_sys_error(GetLastError());
goto done;
}
if (_wchdir(utf16Buffer) == -1) {
err = uv__new_sys_error(_doserrno);
goto done;
}
err = uv_ok_;
done:
if (utf16Buffer) {
free(utf16Buffer);
}
return err;
}
void uv_loadavg(double avg[3]) {
/* Can't be implemented */
avg[0] = avg[1] = avg[2] = 0;
}
uint64_t uv_get_free_memory(void) {
MEMORYSTATUSEX memory_status;
memory_status.dwLength = sizeof(memory_status);
if(!GlobalMemoryStatusEx(&memory_status))
{
return -1;
}
return (uint64_t)memory_status.ullAvailPhys;
}
uint64_t uv_get_total_memory(void) {
MEMORYSTATUSEX memory_status;
memory_status.dwLength = sizeof(memory_status);
if(!GlobalMemoryStatusEx(&memory_status))
{
return -1;
}
return (uint64_t)memory_status.ullTotalPhys;
}
int uv_parent_pid() {
int parent_pid = -1;
HANDLE handle;
PROCESSENTRY32 pe;
int current_pid = GetCurrentProcessId();
pe.dwSize = sizeof(PROCESSENTRY32);
handle = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
if (Process32First(handle, &pe)) {
do {
if (pe.th32ProcessID == current_pid) {
parent_pid = pe.th32ParentProcessID;
break;
}
} while( Process32Next(handle, &pe));
}
CloseHandle(handle);
return parent_pid;
}
void uv_filetime_to_time_t(FILETIME* file_time, time_t* stat_time) {
FILETIME local_time;
SYSTEMTIME system_time;
struct tm time;
if ((file_time->dwLowDateTime || file_time->dwHighDateTime) &&
FileTimeToLocalFileTime(file_time, &local_time) &&
FileTimeToSystemTime(&local_time, &system_time)) {
time.tm_year = system_time.wYear - 1900;
time.tm_mon = system_time.wMonth - 1;
time.tm_mday = system_time.wDay;
time.tm_hour = system_time.wHour;
time.tm_min = system_time.wMinute;
time.tm_sec = system_time.wSecond;
*stat_time = mktime(&time);
} else {
*stat_time = 0;
}
}
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