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SERIAL: For writes to serial ports, accept both EAGAIN and EWOULDBLOCK as non-error conditions for all *nix hosts

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This commit is contained in:
Mark Pizzolato 2013-11-04 12:15:26 -08:00
parent 53690b3a15
commit 65edda68ad
1 changed files with 7 additions and 3 deletions
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10
sim_serial.c
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@ -1324,10 +1324,14 @@ int written;
written = write (port, (void *) buffer, (size_t) count); /* write the buffer to the serial port */
if (written == -1) {
if (errno != EAGAIN) /* unexpected error? */
sim_error_serial ("write", errno); /* report it */
else
if (errno == EWOULDBLOCK)
written = 0; /* not an error, but nothing written */
#if defined(EAGAIN)
else if (errno == EAGAIN)
written = 0; /* not an error, but nothing written */
#endif
else /* unexpected error? */
sim_error_serial ("write", errno); /* report it */
}
return (int32) written; /* return number of characters written */