[vlc-devel] [PATCH] tls: fix ignored interrupts

Thomas Guillem thomas at gllm.fr
Tue Oct 10 12:50:40 CEST 2017


If session->readv() or session->writev() are interrupted, the next call to
vlc_poll_i11e() will hang since the interrupt context is already finished (by
readv/writev).
---
 src/network/tls.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/network/tls.c b/src/network/tls.c
index 4ebcfb319c..f07d0d6f9f 100644
--- a/src/network/tls.c
+++ b/src/network/tls.c
@@ -253,8 +253,13 @@ ssize_t vlc_tls_Read(vlc_tls_t *session, void *buf, size_t len, bool waitall)
         }
         if (iov.iov_len == 0 || val == 0)
             return rcvd;
-        if (val == -1 && errno != EINTR && errno != EAGAIN)
-            return rcvd ? (ssize_t)rcvd : -1;
+        if (val == -1)
+        {
+            if (errno == EINTR)
+                return -1;
+            else if (errno != EAGAIN)
+                return rcvd ? (ssize_t)rcvd : -1;
+        }
 
         vlc_poll_i11e(&ufd, 1, -1);
     }
@@ -287,8 +292,13 @@ ssize_t vlc_tls_Write(vlc_tls_t *session, const void *buf, size_t len)
         }
         if (iov.iov_len == 0 || val == 0)
             return sent;
-        if (val == -1 && errno != EINTR && errno != EAGAIN)
-            return sent ? (ssize_t)sent : -1;
+        if (val == -1)
+        {
+            if (errno == EINTR)
+                return -1;
+            else if (errno != EAGAIN)
+                return sent ? (ssize_t)sent : -1;
+        }
 
         vlc_poll_i11e(&ufd, 1, -1);
     }
-- 
2.11.0



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