src/sylib/syren_os.c

   1 /*
   2   Syren -- a lightweight downloader for Linux/BSD/MacOSX
   3   inspired by Axel Copyright 2001-2002 Wilmer van der Gaast
   4   version 0.0.6 (atomic alien)
   5   coded by Ketmar // Vampire Avalon
   6
   7   This program is free software; you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation; either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License with
  18   the Debian GNU/Linux distribution in file /usr/doc/copyright/GPL;
  19   if not, write to the Free Software Foundation, Inc., 59 Temple Place,
  20   Suite 330, Boston, MA  02111-1307  USA
  21 */
  22 /*
  23   Syren os-specific functions
  24  */
  25 #ifndef _SYREN_OS_C
  26 #define _SYREN_OS_C
  27
  28 #include "syren_os.h"
  29
  30
  31
  32 double SyGetTimeD (void) {
  33   struct timeval time;
  34   gettimeofday(&time, 0);
  35   return ((double)time.tv_sec+(double)time.tv_usec/1000000);
  36 }
  37
  38
  39 #ifdef SY_INCLUDE_FILE_IO
  40 TSyResult SyDeleteFile (const char *fname) {
  41   if (!unlink(fname)) return SY_OK;
  42   return SY_ERROR;
  43 }
  44
  45
  46 int SyOpenFile (const char *fname, TSyFileMode mode, TSyBool mustCreate) {
  47   int mm = (mode==SY_FMODE_WRITE)?O_WRONLY:O_RDONLY;
  48
  49   if (mustCreate != SY_FALSE) mm = mm | O_CREAT;
  50   return open(fname, mm, SY_FILE_DEFMODE);
  51 }
  52
  53
  54 TSyResult SyWriteFile (int fd, const void *buf, int count) {
  55   int wr = write(fd, buf, count);
  56   if (wr != count) return SY_ERROR;
  57   return SY_OK;
  58 }
  59
  60
  61 TSyResult SyReadFile (int fd, void *buf, int count) {
  62   int rd = read(fd, buf, count);
  63   if (rd != count) return SY_ERROR;
  64   return SY_OK;
  65 }
  66
  67
  68 TSyResult SySeekFile (int fd, int64_t offset) {
  69   //!!
  70   offset = offset<0?SY_LSEEK(fd, offset, SEEK_END):SY_LSEEK(fd, offset, SEEK_SET);
  71   if (offset < 0) return SY_ERROR;
  72   return SY_OK;
  73 }
  74
  75
  76 int64_t SyFileSize (int fd) {
  77   int64_t size;
  78   int64_t ppos = SY_LSEEK(fd, 0, SEEK_CUR);
  79   if (ppos < 0) return -1;
  80   size = SY_LSEEK(fd, 0, SEEK_END);
  81   if (SY_LSEEK(fd, ppos, SEEK_SET) < 0) return -1;
  82   return size;
  83 }
  84 #endif
  85
  86
  87 TSyResult SySocketInit (void) {
  88   return SY_OK;
  89 }
  90
  91 void SySocketShutdown (void) {
  92 }
  93
  94
  95 #endif