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lightning/common/dev_disconnect.h

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headers: fix up header idempotent lines. For future reference, done via: for f in `find wire/ bitcoin/ common/ lightningd -name '*.h' ! -name 'gen*'`; do ID=`echo -n LIGHTNING/$f | tr 'a-z' 'A-Z' | tr -cs 'A-Z0-9' _`; sed 's/^#\(ifndef\|define\) .*_H$/#\1 '$ID/ < $f | sed 's,#endif /..*_H ./$,#endif /* '$ID' */,' | bagto $f; done Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
7 years ago
#ifndef LIGHTNING_COMMON_DEV_DISCONNECT_H
#define LIGHTNING_COMMON_DEV_DISCONNECT_H
lightningd: --dev-disconnect support. We use a file descriptor, so when we consume an entry, we move past it (and everyone shares a file offset, so this works). The file contains packet names prefixed by - (treat fd as closed when we try to write this packet), + (write the packet then ensure the file descriptor fails), or @ ("lose" the packet then ensure the file descriptor fails). The sync and async peer-write functions hook this in automatically. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Header from folded patch 'test-run-cryptomsg__fix_compilation.patch': test/run-cryptomsg: fix compilation. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
8 years ago
#include "config.h"
#include <stdbool.h>
lightnind: _ dev-disconnect argument to suppress commit timer. Required for catching daemon in exact state. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
enum dev_disconnect {
/* Do nothing. */
dev_disconnect: make commit suppression a &#34;-nocommit&#34; modifier. Useful if we want to drop &amp; suppress, for example. We change &#39;=&#39; to mean do nothing to the packet. We use this to clean up the test_reconnect_sender_add test. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
DEV_DISCONNECT_NORMAL = '=',
lightnind: _ dev-disconnect argument to suppress commit timer. Required for catching daemon in exact state. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
/* Close connection before sending packet (and fail write). */
DEV_DISCONNECT_BEFORE = '-',
/* Close connection after sending packet. */
DEV_DISCONNECT_AFTER = '+',
/* Close connection after dropping packet. */
DEV_DISCONNECT_DROPPKT = '@',
/* Swallow all writes from now on, and do no more reads. */
DEV_DISCONNECT_BLACKHOLE = '0',
};
lightningd: --dev-disconnect support. We use a file descriptor, so when we consume an entry, we move past it (and everyone shares a file offset, so this works). The file contains packet names prefixed by - (treat fd as closed when we try to write this packet), + (write the packet then ensure the file descriptor fails), or @ (&#34;lose&#34; the packet then ensure the file descriptor fails). The sync and async peer-write functions hook this in automatically. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt; Header from folded patch &#39;test-run-cryptomsg__fix_compilation.patch&#39;: test/run-cryptomsg: fix compilation. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
8 years ago
/* Force a close fd before or after a certain packet type */
lightnind: _ dev-disconnect argument to suppress commit timer. Required for catching daemon in exact state. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
enum dev_disconnect dev_disconnect(int pkt_type);
lightningd: --dev-disconnect support. We use a file descriptor, so when we consume an entry, we move past it (and everyone shares a file offset, so this works). The file contains packet names prefixed by - (treat fd as closed when we try to write this packet), + (write the packet then ensure the file descriptor fails), or @ (&#34;lose&#34; the packet then ensure the file descriptor fails). The sync and async peer-write functions hook this in automatically. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt; Header from folded patch &#39;test-run-cryptomsg__fix_compilation.patch&#39;: test/run-cryptomsg: fix compilation. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
8 years ago
/* Make next write on fd fail as if they'd disconnected. */
void dev_sabotage_fd(int fd);
dev-disconnect: add blackhole option. To reproduce the next bug, I had to ensure that one node keeps thinking it&#39;s disconnected, then the other node reconnects, then the first node realizes it&#39;s disconnected. This code does that, adding a &#39;0&#39; dev-disconnect modifier. That means we fork off a process which (due to pipebuf) will accept a little data, but when the dev_disconnect file is truncated (a hacky, but effective, signalling mechanism) will exit, as if the socket finally realized it&#39;s not connected any more. The python tests hang waiting for the daemon to terminate if you leave the blackhole around; to give a clue as to what&#39;s happening in this case I moved the log dump to before killing the daemon. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
/* No more data to arrive, what's written is swallowed. */
void dev_blackhole_fd(int fd);
lightningd: --dev-disconnect support. We use a file descriptor, so when we consume an entry, we move past it (and everyone shares a file offset, so this works). The file contains packet names prefixed by - (treat fd as closed when we try to write this packet), + (write the packet then ensure the file descriptor fails), or @ (&#34;lose&#34; the packet then ensure the file descriptor fails). The sync and async peer-write functions hook this in automatically. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt; Header from folded patch &#39;test-run-cryptomsg__fix_compilation.patch&#39;: test/run-cryptomsg: fix compilation. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
8 years ago
/* For debug code to set in daemon. */
void dev_disconnect_init(int fd);
lightnind: _ dev-disconnect argument to suppress commit timer. Required for catching daemon in exact state. Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
/* Hack for channeld to do DEV_DISCONNECT_SUPPRESS_COMMIT. */
extern bool dev_suppress_commit;
headers: fix up header idempotent lines. For future reference, done via: for f in `find wire/ bitcoin/ common/ lightningd -name &#39;*.h&#39; ! -name &#39;gen*&#39;`; do ID=`echo -n LIGHTNING/$f | tr &#39;a-z&#39; &#39;A-Z&#39; | tr -cs &#39;A-Z0-9&#39; _`; sed &#39;s/^#\(ifndef\|define\) .*_H$/#\1 &#39;$ID/ &lt; $f | sed &#39;s,#endif /..*_H ./$,#endif /* &#39;$ID&#39; */,&#39; | bagto $f; done Signed-off-by: Rusty Russell &lt;rusty@rustcorp.com.au&gt;
7 years ago
#endif /* LIGHTNING_COMMON_DEV_DISCONNECT_H */