Introduce ff_network_wait_fd_timeout()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 13 insertions, 0 deletions

diff --git a/libavformat/network.h b/libavformat/network.h
index cce188f464..51d855daf9 100644
--- a/libavformat/network.h
+++ b/libavformat/network.h
@@ -26,6 +26,7 @@
 #include "config.h"
 #include "libavutil/error.h"
 #include "os_support.h"
+#include "avio.h"
 
 #if HAVE_UNISTD_H
 #include <unistd.h>
@@ -80,6 +81,18 @@ void ff_tls_deinit(void);
 
 int ff_network_wait_fd(int fd, int write);
 
+/**
+ * This works similarly to ff_network_wait_fd, but waits up to 'timeout' microseconds
+ * Uses ff_network_wait_fd in a loop
+ *
+ * @fd Socket descriptor
+ * @write Set 1 to wait for socket able to be read, 0 to be written
+ * @timeout Timeout interval, in microseconds. Actual precision is 100000 mcs, due to ff_network_wait_fd usage
+ * @param int_cb Interrupt callback, is checked after each ff_network_wait_fd call
+ * @return 0 if data can be read/written, AVERROR(ETIMEDOUT) if timeout expired, or negative error code
+ */
+int ff_network_wait_fd_timeout(int fd, int write, int64_t timeout, AVIOInterruptCB *int_cb);
+
 int ff_inet_aton (const char * str, struct in_addr * add);
 
 #if !HAVE_STRUCT_SOCKADDR_STORAGE