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| author | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-03-03 09:22:25 +0100 |
|---|---|---|
| committer | Øyvind Harboe <oyvind.harboe@zylin.com> | 2011-03-15 10:36:16 +0100 |
| commit | 2321bb3c42b1d47374e51d9e5aa548a37a70b53a (patch) | |
| tree | ce4dab3a7743bdad9bf7e16dc351847f05cc8aba | |
| parent | 4da640563b95939cd3fe9275053ba3181de723c4 (diff) | |
| download | openocd+libswd-2321bb3c42b1d47374e51d9e5aa548a37a70b53a.tar.gz openocd+libswd-2321bb3c42b1d47374e51d9e5aa548a37a70b53a.tar.bz2 openocd+libswd-2321bb3c42b1d47374e51d9e5aa548a37a70b53a.tar.xz openocd+libswd-2321bb3c42b1d47374e51d9e5aa548a37a70b53a.zip | |
zy1000: fix JTAG over TCP/IP performance problem
only flush write queue just before waiting for more data,
rather than when fetching more data from the buffer.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
| -rw-r--r-- | src/jtag/zy1000/zy1000.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/src/jtag/zy1000/zy1000.c b/src/jtag/zy1000/zy1000.c index a8f7ffc7..f9721917 100644 --- a/src/jtag/zy1000/zy1000.c +++ b/src/jtag/zy1000/zy1000.c @@ -1063,14 +1063,6 @@ static bool writeLong(uint32_t l) static bool readLong(uint32_t *out_data) { - if (out_pos > 0) - { - if (!flush_writes()) - { - return false; - } - } - uint32_t data = 0; int i; for (i = 0; i < 4; i++) @@ -1078,6 +1070,17 @@ static bool readLong(uint32_t *out_data) uint8_t c; if (in_pos == in_write) { + /* If we have some data that we can send, send them before + * we wait for more data + */ + if (out_pos > 0) + { + if (!flush_writes()) + { + return false; + } + } + /* read more */ int t; t = read(tcp_ip, in_buffer, sizeof(in_buffer)); |