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/******************************************************************************
* Copyright © 2014-2016 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* SuperNET software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
#include "OS_portable.h"
//#include <sys/stat.h>
#ifndef MAP_FILE
#define MAP_FILE 0
#endif
void OS_portable_init()
{
#ifdef _WIN32
OS_nonportable_init();
#endif
}
// from tweetnacl
void OS_portable_randombytes(unsigned char *x,long xlen)
{
#ifdef _WIN32
OS_nonportable_randombytes(x,xlen);
#else
static int fd = -1;
int32_t i;
if (fd == -1) {
for (;;) {
fd = open("/dev/urandom",O_RDONLY);
if (fd != -1) break;
sleep(1);
}
}
while (xlen > 0) {
if (xlen < 1048576) i = (int32_t)xlen; else i = 1048576;
i = (int32_t)read(fd,x,i);
if (i < 1) {
sleep(1);
continue;
}
if ( 0 )
{
int32_t j;
for (j=0; j<i; j++)
printf("%02x ",x[j]);
printf("-> %p\n",x);
}
x += i;
xlen -= i;
}
#endif
}
int32_t OS_portable_truncate(char *fname,long filesize)
{
#ifdef _WIN32
printf("need to implement truncate()\n");
return(-1);
#else
return(truncate(fname,filesize));
#endif
}
char *OS_portable_path(char *str)
{
#ifdef _WIN32
char *OS_nonportable_path(char *str);
return(OS_nonportable_path(str));
#else
#ifdef __PNACL
/*int32_t i,n;
if ( str[0] == '/' )
return(str);
else
{
n = (int32_t)strlen(str);
for (i=n; i>0; i--)
str[i] = str[i-1];
str[0] = '/';
str[n+1] = 0;
}*/
#endif
return(str);
#endif
}
int32_t OS_portable_renamefile(char *fname,char *newfname)
{
#ifdef _WIN32
return(OS_nonportable_renamefile(fname,newfname));
#else
return(rename(fname,newfname));
#endif
}
int32_t OS_portable_removefile(char *fname)
{
#ifdef _WIN32
return(OS_nonportable_removefile(fname));
#else
return(remove(fname));
#endif
return(-1);
}
int32_t OS_portable_rmdir(char *dirname,int32_t diralso)
{
char cmdstr[1024],tmp[512]; //int32_t i;
strcpy(tmp,dirname);
OS_portable_path(tmp);
#ifdef _WIN32
sprintf(cmdstr,"rmdir %s",tmp);
if ( system(cmdstr) != 0 )
printf("error deleting dir.(%s)\n",cmdstr);
else return(1);
#else
if ( diralso != 0 )
{
sprintf(cmdstr,"rm -rf %s",tmp);
if ( system(cmdstr) != 0 )
printf("error deleting dir.(%s)\n",cmdstr);
//sprintf(cmdstr,"rmdir %s",tmp);
//if ( system(cmdstr) != 0 )
// printf("error deleting dir.(%s)\n",cmdstr);
}
else
{
//for (i=0; i<=16; i++)
{
//if ( i < 16 )
// sprintf(cmdstr,"rm %s/%c*",tmp,i<10?'0'+i:'a'-10+i);
//else sprintf(cmdstr,"rm %s/*",tmp);
sprintf(cmdstr,"rm -rf %s",tmp);
if ( system(cmdstr) != 0 )
printf("error deleting dir.(%s)\n",cmdstr);
}
}
return(0);
#endif
return(-1);
}
void *OS_portable_mapfile(char *fname,long *filesizep,int32_t enablewrite)
{
#ifdef _WIN32
void *OS_nonportable_mapfile(char *fname,long *filesizep,int32_t enablewrite);
return(OS_nonportable_mapfile(fname,filesizep,enablewrite));
#else
int32_t fd,rwflags,flags = MAP_FILE|MAP_SHARED;
long filesize;
void *ptr = 0;
*filesizep = 0;
if ( enablewrite != 0 )
fd = open(fname,O_RDWR);
else fd = open(fname,O_RDONLY);
if ( fd < 0 )
{
//printf("map_file: error opening enablewrite.%d %s\n",enablewrite,fname);
return(0);
}
if ( *filesizep == 0 )
filesize = (long)lseek(fd,0,SEEK_END);
else filesize = *filesizep;
rwflags = PROT_READ;
if ( enablewrite != 0 )
rwflags |= PROT_WRITE;
//#if __i386__ || _WIN32 || __PNACL
ptr = mmap(0,filesize,rwflags,flags,fd,0);
//#else
// void *mmap64(void *addr,size_t len,int32_t prot,int32_t flags,int32_t fildes,off_t off);
// ptr = mmap64(0,filesize,rwflags,flags,fd,0);
//#endif
close(fd);
if ( ptr == 0 || ptr == MAP_FAILED )
{
printf("map_file.write%d: mapping %s failed? mp %p\n",enablewrite,fname,ptr);
return(0);
}
*filesizep = filesize;
//printf("mapped rw.%d %ld -> %s\n",enablewrite,(long)filesize,fname);
return(ptr);
#endif
}
int32_t OS_portable_syncmap(struct OS_mappedptr *mp,long len)
{
/*#ifndef __PNACL
int32_t err = -1;
if ( mp->actually_allocated != 0 )
return(0);
if ( mp->fileptr != 0 && mp->dirty != 0 )
{
if ( len == 0 )
len = mp->allocsize;
err = msync(mp->fileptr,len,MS_SYNC);
if ( err != 0 )
printf("sync (%s) len %llu, err %d errno.%d\n",mp->fname,(long long)len,err,errno);
//Sync_total += len;
mp->dirty = 0;
}
return(err);
#else
return(OS_nonportable_syncmap(mp,len));
#endif*/
return(-1);
}
void *OS_portable_tmpalloc(char *dirname,char *name,struct OS_memspace *mem,long origsize)
{
#ifdef __PNACL
return(OS_nonportable_tmpalloc(dirname,name,mem,origsize));
#else
char fname[1024]; void *ptr; long size;
if ( mem->threadsafe != 0 )
portable_mutex_lock(&mem->mutex);
if ( origsize != 0 && (mem->M.fileptr == 0 || (mem->used + origsize) > mem->totalsize) )
{
//coin->TMPallocated += origsize;
memset(&mem->M,0,sizeof(mem->M));
sprintf(fname,"tmp/%s/%s.%d",dirname,name,mem->counter), OS_compatible_path(fname);
mem->counter++;
if ( mem->totalsize == 0 )
{
mem->totalsize = (1024 * 1024 * 16);
}
//if ( coin->R.RSPACE.size == 0 )
// coin->R.RSPACE.size = mem->size;
if ( mem->totalsize > origsize )
size = mem->totalsize;
else size = origsize;
fprintf(stderr,"filealloc.(%s) -> ",fname);
if ( OS_filealloc(&mem->M,fname,mem,size) == 0 )
{
printf("couldnt map tmpfile %s\n",fname);
return(0);
}
fprintf(stderr,"created\n");
}
ptr = iguana_memalloc(mem,origsize,1);
if ( mem->threadsafe != 0 )
portable_mutex_unlock(&mem->mutex);
return(ptr);
#endif
}