int readf() { // Read the next cluster of a file
uint32_t nextsect;
if (endoffile()) return -1;
filesectorcount++;
if (++curfilesectorcluster == fat.BPB_SecPerClus) {
if ((nextsect = getnextsect(curfilesect))==0) return -1;
curfilesect=nextsect;
curfilesectorcluster=0;
}
if (sdmmc_sdcard_readsectors(curfilesect+curfilesectorcluster,1,(void*)&filesect)) return -1;
else return 0;
}
// wait for end of process
// if kill is true, kill if not already ended
int
ProcessBuf::close(bool kill)
{
#ifdef WIN32
if (processInformation.hProcess == 0)
return -1;
LOG(DBG,"ProcessBuf::close for process " << processInformation.hProcess << "(" << kill << ")");
if (processInformation.hProcess != 0) {
if (kill) {
TerminateProcess(processInformation.hProcess, 1);
}
else {
WaitForSingleObject(processInformation.hProcess, INFINITE);
}
// send EOF to stdin of child process
CloseHandle(processInformation.hProcess);
processInformation.hProcess = 0;
if (processInformation.hThread != 0) {
CloseHandle(processInformation.hThread);
processInformation.hThread = 0;
}
}
if (g_hChildStd_IN_Rd != 0) {
CloseHandle(g_hChildStd_IN_Rd);
g_hChildStd_IN_Rd = 0;
}
if (g_hChildStd_OUT_Wr != 0) {
CloseHandle(g_hChildStd_OUT_Wr);
g_hChildStd_OUT_Wr = 0;
}
return 0;
#elif defined(POSIX)
if( process == -1 )
return -1;
LOG(DBG,"ProcessBuf::close for process " << process << "(" << kill << ")");
// we're done writing
endoffile();
// reset input buffer
setg(ibuf, ibuf, ibuf);
// we're done reading
if (outpipes[0] != -1) {
::close(outpipes[0]);
outpipes[0] = -1;
}
// try to waitpid without waiting (just see if the process is still there)
if( ::waitpid(process, &status, WNOHANG) == 0 ) {
int sig = SIGTERM;
LOG(INFO,"sending signal " << sig << " to process " << process);
::kill(process, sig);
}
// obviously we do not want to leave zombies around, so get status
// code of the process
// (if the process no longer exists, this will simply fail,
// if a new process grabbed the same pid, we are doomed and will wait for that
// unrelated process to exit)
::waitpid(process, &status, 0);
int exitstatus = WEXITSTATUS(status);
LOG(DBG,"ProcessBuf::close for process " << process << ": exit status " << exitstatus);
process = -1;
// exit code of process
return exitstatus;
#else
#error Either POSIX or WIN32 must be defined
#endif
}