70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
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#include<hgl/io/FileAccess.h>
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#include<hgl/LogInfo.h>
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#include<unistd.h>
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#include<stdlib.h>
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#include<fcntl.h>
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#include<errno.h>
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namespace hgl
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{
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namespace io
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{
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bool FileAccess::CreateTemp()
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{
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char template_filename[HGL_MAX_PATH]="/tmp/cm/XXXXXX";
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fp=mkstemps(template_filename,HGL_MAX_PATH);
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if(fp==-1)
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return(false);
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filename=template_filename;
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mode=fomCreate;
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return(true);
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}
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int OpenFile(const os_char *fn,FileOpenMode fom)
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{
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int fp;
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if(fom==fomCreate )fp=hgl_open64(fn,O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);else
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if(fom==fomCreateTrunc )fp=hgl_open64(fn,O_WRONLY|O_CREAT|O_TRUNC, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);else
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if(fom==fomOnlyRead )fp=hgl_open64(fn,O_RDONLY );else
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if(fom==fomOnlyWrite )fp=hgl_open64(fn,O_WRONLY );else
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if(fom==fomReadWrite )fp=hgl_open64(fn,O_RDWR );else
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if(fom==fomAppend )fp=hgl_open64(fn,O_APPEND );else
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{
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LOG_ERROR(OS_TEXT("UNIX,FileAccess,OpenFile(")+OSString(fn)+OS_TEXT(" mode error: "+OSString(fom)));
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RETURN_ERROR(-1);
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}
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if(fp==-1)
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{
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LOG_ERROR(OS_TEXT("UNIX,FileAccess,OpenFile(")+OSString(fn)+OS_TEXT(") open return error: "+OSString(errno)));
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}
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return fp;
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}
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void CloseFile(int fp)
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{
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close(fp);
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}
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int64 FileAccess::Read(int64 offset,void *buf,int64 size)
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{
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if(!CanRead())return(-1);
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return hgl_pread64(fp,buf,size,offset);
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}
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int64 FileAccess::Write(int64 offset,const void *buf,int64 size)
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{
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if(!CanWrite())return(-1);
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return hgl_pwrite64(fp,buf,size,offset);
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}
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}//namespace io
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}//namespace hgl
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