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SCP: Added support fo set a fifo opened with sim_fopen() to be non-blocking.

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This commit is contained in:
Mark Pizzolato 2014-12-30 18:48:42 -08:00
parent 4381f9acc1
commit 33781be23b
2 changed files with 26 additions and 0 deletions
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25
sim_fio.c
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@ -369,10 +369,35 @@ int sim_set_fsize (FILE *fptr, t_addr size)
{
return _chsize(_fileno(fptr), (long)size);
}
int sim_set_fifo_nonblock (FILE *fptr)
{
return -1;
}
#else /* !defined(_WIN32) */
#include <unistd.h>
int sim_set_fsize (FILE *fptr, t_addr size)
{
return ftruncate(fileno(fptr), (off_t)size);
}
#include <sys/stat.h>
#include <fcntl.h>
int sim_set_fifo_nonblock (FILE *fptr)
{
struct stat stbuf;
if (!fptr || fstat (fileno(fptr), &stbuf))
return -1;
#if defined(S_IFIFO) && defined(O_NONBLOCK)
if ((stbuf.st_mode & S_IFIFO)) {
int flags = fcntl(fileno(fptr), F_GETFL, 0);
return fcntl(fileno(fptr), F_SETFL, flags | O_NONBLOCK);
}
#endif
return -1;
}
#endif

1
sim_fio.h
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@ -54,6 +54,7 @@ FILE *sim_fopen (const char *file, const char *mode);
int sim_fseek (FILE *st, t_addr offset, int whence);
int sim_fseeko (FILE *st, t_offset offset, int whence);
int sim_set_fsize (FILE *fptr, t_addr size);
int sim_set_fifo_nonblock (FILE *fptr);
size_t sim_fread (void *bptr, size_t size, size_t count, FILE *fptr);
size_t sim_fwrite (void *bptr, size_t size, size_t count, FILE *fptr);
uint32 sim_fsize (FILE *fptr);