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/* timeout write to outfd more than 4096 bytes */
static void t_write(void *buf, int len) {
#ifndef INIT_TIMEOUT_WRITE
write(outfd,buf,len);
#else
time_t deadline = time(0) + 1;
while (len > 0) {
int w = write(outfd,buf, (len > PIPE_BUF) ? PIPE_BUF : len);
if (w==-1) {
if (errno == EINTR) continue;
if (errno == EAGAIN && time(0) <= deadline) continue;
return;
}
len -= w;
buf += w;
}
#endif
}
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