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-rw-r--r--src/helper/replacements.h11
-rw-r--r--src/jtag/drivers/remote_bitbang.c4
2 files changed, 13 insertions, 2 deletions
diff --git a/src/helper/replacements.h b/src/helper/replacements.h
index 1e2fbf2..f43b7e0 100644
--- a/src/helper/replacements.h
+++ b/src/helper/replacements.h
@@ -199,6 +199,17 @@ static inline int close_socket(int sock)
#endif
}
+static inline void socket_block(int fd)
+{
+#ifdef _WIN32
+ unsigned long nonblock = 0;
+ ioctlsocket(fd, FIONBIO, &nonblock);
+#else
+ int oldopts = fcntl(fd, F_GETFL, 0);
+ fcntl(fd, F_SETFL, oldopts & ~O_NONBLOCK);
+#endif
+}
+
static inline void socket_nonblock(int fd)
{
#ifdef _WIN32
diff --git a/src/jtag/drivers/remote_bitbang.c b/src/jtag/drivers/remote_bitbang.c
index 5e78ccb..4e1995c 100644
--- a/src/jtag/drivers/remote_bitbang.c
+++ b/src/jtag/drivers/remote_bitbang.c
@@ -59,7 +59,7 @@ static int remote_bitbang_buf_full(void)
/* Read any incoming data, placing it into the buffer. */
static void remote_bitbang_fill_buf(void)
{
- fcntl(remote_bitbang_fd, F_SETFL, O_NONBLOCK);
+ socket_nonblock(remote_bitbang_fd);
while (!remote_bitbang_buf_full()) {
unsigned contiguous_available_space;
if (remote_bitbang_end >= remote_bitbang_start) {
@@ -148,7 +148,7 @@ static int remote_bitbang_rread(void)
}
/* Enable blocking access. */
- fcntl(remote_bitbang_fd, F_SETFL, 0);
+ socket_block(remote_bitbang_fd);
char c;
ssize_t count = read(remote_bitbang_fd, &c, 1);
if (count == 1) {