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extmod/modwebrepl: GET_FILE: Send length-prefix chunk with one write(). 

A bit of optimization.
This commit is contained in:
Paul Sokolovsky 2016-04-29 17:35:21 +03:00
parent 3f3ccef829
commit 473b639845
1 changed files with 6 additions and 5 deletions
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11
extmod/modwebrepl.c
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@ -124,19 +124,20 @@ STATIC void handle_op(mp_obj_webrepl_t *self) {
if (self->hdr.type == PUT_FILE) {
self->data_to_recv = self->hdr.size;
} else if (self->hdr.type == GET_FILE) {
byte readbuf[256];
byte readbuf[2 + 256];
int err;
// TODO: It's not ideal that we block connection while sending file
// and don't process any input.
while (1) {
mp_uint_t out_sz = file_stream->read(self->cur_file, readbuf, sizeof(readbuf), &err);
mp_uint_t out_sz = file_stream->read(self->cur_file, readbuf + 2, sizeof(readbuf) - 2, &err);
assert(out_sz != MP_STREAM_ERROR);
write_webrepl(self->sock, &out_sz, 2);
readbuf[0] = out_sz;
readbuf[1] = out_sz >> 8;
DEBUG_printf("webrepl: Sending %d bytes of file\n", out_sz);
write_webrepl(self->sock, readbuf, 2 + out_sz);
if (out_sz == 0) {
break;
}
DEBUG_printf("webrepl: Sending %d bytes of file\n", out_sz);
write_webrepl(self->sock, readbuf, out_sz);
}
write_webrepl_resp(self->sock, 0);