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Simplify uart_send() on POSIX systems.

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This commit is contained in:
Romain Tartiere 2011-03-09 13:42:23 +00:00
parent ad530f6d02
commit cfc5273275
1 changed files with 0 additions and 34 deletions
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34
libnfc/buses/uart_posix.c
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@ -297,44 +297,10 @@ int
uart_send (serial_port sp, const byte_t * pbtTx, const size_t szTx)
{
PRINT_HEX ("TX", pbtTx, szTx);
#if 0
if ((int) szTx == write (((serial_port_unix *) sp)->fd, pbtTx, szTx))
return 0;
else
return DEIO;
#endif
int32_t res;
size_t szPos = 0;
fd_set rfds;
struct timeval tv = tvTimeout;
while (szPos < szTx) {
// Reset file descriptor
FD_ZERO (&rfds);
FD_SET (((serial_port_unix *) sp)->fd, &rfds);
res = select (((serial_port_unix *) sp)->fd + 1, NULL, &rfds, NULL, &tv);
// Write error
if (res < 0) {
DBG ("%s", "TX error.");
return DEIO;
}
// Write time-out
if (res == 0) {
DBG ("%s", "TX time-out.");
return DETIMEOUT;
}
// Send away the bytes
res = write (((serial_port_unix *) sp)->fd, pbtTx + szPos, szTx - szPos);
// Stop if the OS has some troubles sending the data
if (res <= 0) {
return DEIO;
}
szPos += res;
}
return 0;
}
char **