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SC_Win32Utils.cpp
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SC_Win32Utils.cpp
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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
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
*/
#ifdef _WIN32
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <sys/timeb.h>
#include <time.h>
#include "SC_Win32Utils.h"
void win32_ReplaceCharInString(char* string, int len, char src, char dst)
{
for( int i = 0; i < len; i ++)
if(string[i] == src)
string[i] = dst;
}
void win32_ExtractContainingFolder(char* folder,const char* pattern,int maxChars)
{
strcpy(folder,pattern);
bool backSlashFound = false;
int pathLen = strlen(pattern);
for( int i = pathLen-2; i >= 0; --i) {
if( pattern[i] == '\\') {
folder[i+1] = 0;
backSlashFound = true;
break;
}
}
if( !backSlashFound )
folder[0] = 0;
}
void win32_gettimeofday(timeval* tv, void*)
{
long unsigned secBetween1601and1970 = 11644473600ULL;
FILETIME fileTime;
GetSystemTimeAsFileTime(&fileTime);
tv->tv_sec = (* (unsigned __int64 *) &fileTime / (unsigned __int64)10000000) - secBetween1601and1970;
tv->tv_usec = (* (unsigned __int64 *) &fileTime % (unsigned __int64)10000000)/(unsigned __int64)10;
}
void win32_GetHomeFolder(char* homeFolder, int bufLen)
{
char homeFolder_[MAX_PATH];
const char *h = 0;
if (!(h = ::getenv("home")))
h = ::getenv("HOME");
if (h)
strcpy(homeFolder_,h);
else {
// for Windows NT HOME might be defined as either $(HOMESHARE)/$(HOMEPATH)
// or $(HOMEDRIVE)/$(HOMEPATH)
h = ::getenv("HOMESHARE");
if (!h)
h = ::getenv("HOMEDRIVE");
if (h) {
strcpy(homeFolder_,h);
h = ::getenv("HOMEPATH");
if (h)
strcat(homeFolder_,h);
}
}
size_t len = strlen(homeFolder_);
if (bufLen < len + 1)
fprintf(stderr, "the buffer given to win32_GetHomeFolder(...) is too small\n");
strncpy(homeFolder,homeFolder_,len);
homeFolder[len]= 0;
}
char* win32_basename(char* path)
{
int pathLen = strlen(path);
int lastPathSepFoundPos = -1;
int pos = 0;
while (path[pathLen-1] == '\\' || path[pathLen-1] == '/') {
path[pathLen-1]=0; pathLen--;
};
while(path[pos] != 0) {
if (path[pos] == '\\' || path[pos] == '/') {
lastPathSepFoundPos = pos;
}
pos++;
}
if (lastPathSepFoundPos == -1)
return path;
else
return path + lastPathSepFoundPos + 1;
}
char* win32_dirname(char* path)
{
int pathLen = strlen(path);
int lastPathSepFoundPos = -1;
int pos = 0;
while (path[pathLen-1] == '\\' || path[pathLen-1] == '/') {
path[pathLen-1]=0; pathLen--;
};
while(path[pos] != 0) {
if (path[pos] == '\\' || path[pos] == '/') {
lastPathSepFoundPos = pos;
}
pos++;
}
if (lastPathSepFoundPos != -1)
path[lastPathSepFoundPos]=0;
return path;
}
int win32_nanosleep (const struct timespec *requested_time,
struct timespec *remaining)
{
DWORD milliseconds = requested_time->tv_sec * 1000
+ (requested_time->tv_nsec) / 1000000;
if (requested_time->tv_nsec < 0 || requested_time->tv_nsec > 1000000) {
errno = EINVAL;
return -1;
}
Sleep (milliseconds);
remaining->tv_sec = 0;
remaining->tv_nsec = 0;
return 0;
}
/* Based on code from PostgreSQL (pgsql/src/port/pipe.c)
* This is a replacement version of pipe for Win32 which allows
* returned handles to be used in select(). Note that read/write calls
* must be replaced with recv/send.
*/
int win32_pipe(int handles[2])
{
SOCKET s;
struct sockaddr_in serv_addr;
int len = sizeof(serv_addr);
handles[0] = handles[1] = INVALID_SOCKET;
if ((s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
printf("win32_pipe failed to create socket: %ui", WSAGetLastError());
return -1;
}
memset((void *) &serv_addr, 0, sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(0);
serv_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(s, (SOCKADDR *) & serv_addr, len) == SOCKET_ERROR)
{
printf("win32_pipe failed to bind: %ui", WSAGetLastError());
return -1;
}
if (listen(s, 1) == SOCKET_ERROR)
{
printf("win32_pipe failed to listen to socket: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if (getsockname(s, (SOCKADDR *) & serv_addr, &len) == SOCKET_ERROR)
{
printf("win32_pipe failed to getsockname: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if ((handles[1] = socket(PF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET)
{
printf("win32_pipe failed to create socket 2: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if (connect(handles[1], (SOCKADDR *) & serv_addr, len) == SOCKET_ERROR)
{
printf("win32_pipe failed to connect to socket: %ui", WSAGetLastError());
closesocket(s);
return -1;
}
if ((handles[0] = accept(s, (SOCKADDR *) & serv_addr, &len)) == INVALID_SOCKET)
{
printf("win32_pipe failed to accept socket: %ui", WSAGetLastError());
closesocket(handles[1]);
handles[1] = INVALID_SOCKET;
closesocket(s);
return -1;
}
closesocket(s);
return 0;
}
int win32_piperead(int s, char *buf, int len)
{
int ret = recv(s, buf, len, 0);
if (ret < 0 && WSAGetLastError() == WSAECONNRESET)
/* EOF on the pipe! (win32 socket based implementation) */
ret = 0;
return ret;
}
int win32_pipewrite(int s, char *buf, int len)
{
int ret = send(s, buf, len, 0);
if (ret < 0 && WSAGetLastError() == WSAECONNRESET)
/* EOF on the pipe! (win32 socket based implementation) */
ret = 0;
return ret;
}
#endif
// _WIN32