ssize_t
read(int d, void *buf, size_t nbytes)
{
ssize_t retval;
pthread_t self;
self = pthread__self();
TESTCANCEL(self);
retval = _sys_read(d, buf, nbytes);
TESTCANCEL(self);
return retval;
}
extern "C" int _read(int file, char *ptr, int len)
{
int BytesNotRead;
/* Open stdin/stdout/stderr if needed */
if (MRI_SEMIHOST_STDIO && file < 3)
{
return __mriNewlib_SemihostRead(file, ptr, len);
}
else if (!g_StandardHandlesOpened && file < 3)
{
__GCC4MBEDOpenStandardHandles();
}
/* Call the function in mbed.ar and let it handle the read */
BytesNotRead = _sys_read(file, (unsigned char*)ptr, len, 0);
/* EOF is indicated by setting the most significant bit so mask it off */
BytesNotRead &= 0x7FFFFFFF;
/* The mbed version of the function returns bytes not read and newlib wants bytes read count */
return len - BytesNotRead;
}
