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#include <stdio.h>
#include <stdlib.h>
#if !defined(VMS) && !defined(_WIN32)
#include <unistd.h>
#endif
#ifdef _WIN32
#include <windows.h>
#include <io.h>
#endif
#if defined(cray) || defined(__SVR4) || defined(_WIN32)
#include <fcntl.h>
#else
#include <sys/file.h>
#endif
#include <sys/stat.h>
#include <sys/types.h>
#include "gkscore.h"
int gks_open_file(const char *path, const char *mode)
{
int fd, flags, omode;
#ifdef _WIN32
wchar_t w_path[MAX_PATH];
#endif
switch (*mode)
{
case 'r':
#if defined(_WIN32)
flags = O_RDONLY | O_BINARY;
#else
flags = O_RDONLY;
#endif
omode = 0;
break;
case 'w':
#if defined(_WIN32)
flags = O_CREAT | O_TRUNC | O_WRONLY | O_BINARY;
omode = S_IREAD | S_IWRITE;
#else
flags = O_CREAT | O_TRUNC | O_WRONLY;
omode = 0644;
#endif
break;
default:
return -1;
}
#ifdef _WIN32
MultiByteToWideChar(CP_UTF8, 0, path, strlen(path) + 1, w_path, MAX_PATH);
fd = _wopen(w_path, flags, omode);
#else
fd = open(path, flags, omode);
#endif
if (fd < 0)
{
gks_perror("file open error (%s)", path);
perror("open");
}
return fd;
}
int gks_read_file(int fd, void *buf, int count)
{
int cc;
#ifdef _WIN32
cc = _read(fd, buf, count);
#else
cc = read(fd, buf, count);
#endif
if (cc != count)
{
gks_perror("file read error (fd=%d, cc=%d)", fd, cc);
if (cc == -1) perror("read");
}
return cc;
}
int gks_write_file(int fd, void *buf, int count)
{
int cc;
#ifdef _WIN32
cc = _write(fd, buf, count);
#else
cc = write(fd, buf, count);
#endif
if (cc != count)
{
gks_perror("file write error (fd=%d, cc=%d)", fd, cc);
if (cc == -1) perror("write");
}
return cc;
}
int gks_close_file(int fd)
{
int result;
#ifdef _WIN32
result = _close(fd);
#else
result = close(fd);
#endif
if (result < 0)
{
gks_perror("file close error (fd=%d)", fd);
perror("close");
}
return result;
}
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