TempFile.cxx

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#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
#endif
 
#if defined(__MACH__)
#define _DARWIN_C_SOURCE // mkdtemp
#endif
 
#if defined(ESP_NONOS)
#define __sh__ // for ftruncate
#endif
 
#include "os/TempFile.hxx"
 
#include <unistd.h>
 
#if !defined(__FreeRTOS__) && !defined(__WINNT__)
TempDir::TempDir()
{
#if defined(__linux__) || defined(__MACH__)
    dirName_ = "/tmp/openmrntmpdirXXXXXX";
#else
    dirName_ = "./openmrntmpdirXXXXXX";
#endif
    dirName_.c_str();
    HASSERT(mkdtemp(&dirName_[0]));
}
#endif
 
//
// TempFile::TempFile()
//
TempFile::TempFile(const TempDir& dir, const string& basename)
{
    fileName_ = dir.name() + "/" + basename + ".XXXXXX";
    fileName_.c_str();
    fd_ = mkstemp((char*)fileName_.c_str());
}
 
//
// TempFile::rewrite()
//
void TempFile::rewrite(const string& s)
{
    ::lseek(fd_, 0, SEEK_SET);
    ::ftruncate(fd_, 0);
    write(s);
}