Due to interaction between the MSL C library and the GUSI I/O library I can get reads from sockets to work consistently either for unbuffered binary files or for buffered binary files, but not for both:-(
The workaround is to force socket.makefile() to disable buffering for binary files.
Fixes bug 534625. 2.2.1 candidate.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index ef5967a..4f35b32 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -1365,6 +1365,11 @@
SOCKETCLOSE(fd);
return s->errorhandler();
}
+#ifdef USE_GUSI2
+ /* Workaround for bug in Metrowerks MSL vs. GUSI I/O library */
+ if (strchr(mode, 'b') != NULL )
+ bufsize = 0;
+#endif
f = PyFile_FromFile(fp, "<socket>", mode, fclose);
if (f != NULL)
PyFile_SetBufSize(f, bufsize);