Displaying 20 results from an estimated 174 matches for "nbd_get_error".
2019 Jun 04
0
[PATCH libnbd v2 4/4] examples: Add concurrent writer example.
...ed requests, most_in_flight, errors;
+
+ srand (time (NULL));
+
+ if (argc < 2 || argc > 3) {
+ fprintf (stderr, "%s uri | socket | hostname port\n", argv[0]);
+ exit (EXIT_FAILURE);
+ }
+
+ nbd = nbd_create ();
+ if (nbd == NULL) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
+
+ /* Connect first to check if the server supports writes and multi-conn. */
+ if (argc == 2) {
+ if (strstr (argv[1], "://")) {
+ if (nbd_connect_uri (nbd, argv[1]) == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+...
2019 May 21
0
[libnbd] tmp patch adding deadlock test
...n. */
+ nbd_set_debug (nbd, true);
+ conn = nbd_get_connection (nbd, 0);
+
+ /* Issue commands. */
+ in_flight = 0;
+ fprintf (stderr, " * before aio_pread\n");
+ handles[0] = nbd_aio_pread (conn, in, packetsize, 0);
+ if (handles[0] == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ goto error;
+ }
+ fprintf (stderr, " * after aio_pread\n");
+ in_flight++;
+ fprintf (stderr, " * before aio_pwrite\n");
+ handles[1] = nbd_aio_pwrite (conn, out, packetsize, packetsize, 0);
+ if (handles[1] == -1) {
+ fprintf (stderr, "%s\n", nbd_ge...
2019 May 22
0
[libnbd PATCH v3 7/7] examples: Add example to demonstrate just-fixed deadlock scenario
...s in flight */
+ int dir, r;
+
+ /* The single thread "owns" the connection. */
+ conn = nbd_get_connection (nbd, 0);
+
+ /* Issue commands. */
+ in_flight = 0;
+ handles[0] = nbd_aio_pread (conn, in, packetsize, 0);
+ if (handles[0] == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ goto error;
+ }
+ in_flight++;
+ handles[1] = nbd_aio_pwrite (conn, out, packetsize, packetsize, 0);
+ if (handles[1] == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ goto error;
+ }
+ in_flight++;
+
+ /* Now wait for commands to retire, or for deadlock to o...
2019 Jun 03
0
[PATCH libnbd discussion only 5/5] examples: Add concurrent writer example.
...ed requests, most_in_flight, errors;
+
+ srand (time (NULL));
+
+ if (argc < 2 || argc > 3) {
+ fprintf (stderr, "%s uri | socket | hostname port\n", argv[0]);
+ exit (EXIT_FAILURE);
+ }
+
+ nbd = nbd_create ();
+ if (nbd == NULL) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
+
+ /* Connect first to check if the server supports writes and multi-conn. */
+ if (argc == 2) {
+ if (strstr (argv[1], "://")) {
+ if (nbd_connect_uri (nbd, argv[1]) == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+...
2023 Mar 08
2
[PATCH libnbd] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...ch returns
NULL (since the key has already been destroyed in step (2)), and this
causes us to call pthread_setspecific which returns EINVAL because
glibc is able to detect invalid use of a pthread_key_t after it has
been destroyed. In any case, the error message is lost, and any
subsequent call to nbd_get_error() will return NULL.
(5) We enter the %DEAD state, where there is an assertion that
nbd_get_error() is not NULL. This assertion is supposed to be for
checking that the code called set_error() before entering the %DEAD
state. Although we did call set_error(), the error message was lost
at step (4)...
2019 Aug 06
5
[PATCH libnbd 0/3] One API and small documentation changes.
One API change, some small documentation changes.
2020 Aug 19
0
[libnbd PATCH 2/2] info: Use nbd_opt_info for fewer handles during --list
...the API since we can no longer user nbd_can_* and nbd_is_* to
- unpack the flags.
diff --git a/info/nbdinfo.c b/info/nbdinfo.c
index bd3615e..cdff958 100644
--- a/info/nbdinfo.c
+++ b/info/nbdinfo.c
@@ -209,11 +209,12 @@ main (int argc, char *argv[])
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
- /* Disconnect from the server to move the handle into a closed
- * state, in case the server serializes further connections.
- * But we can ignore errors in this case.
- */
- nbd_opt_abort (nbd);
+ if (probe_content)
+ /* Disconnec...
2020 Nov 05
1
[PATCH libnbd] copy: Allowing copying from NBD server to NBD server.
This patch is a straightforward refactoring of libnbd?s nbdcopy
program, and not very interesting.
However I have plans for nbdcopy (see full todo below). I would like
to use this utility for virt-v2v as a replacement for ?qemu-img convert?.
qemu-img has caused us a series of problems:
- change in zeroing behaviour caused a big performance regression
- qemu-img reads extents up-front which
2019 Jun 29
0
[libnbd PATCH 6/6] examples: New example for strict read validations
...int64_t exportsize;
+ int64_t maxsize = MAX_BUF;
+ uint64_t offset;
+
+ srand (time (NULL));
+
+ if (argc != 2) {
+ fprintf (stderr, "%s socket|uri\n", argv[0]);
+ exit (EXIT_FAILURE);
+ }
+
+ nbd = nbd_create ();
+ if (nbd == NULL) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
+ if (strstr (argv[1], "://")) {
+ if (nbd_connect_uri (nbd, argv[1]) == -1) {
+ fprintf (stderr, "%s\n", nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
+ }
+ else if (nbd_connect_unix (nbd, argv[1]) == -1) {
+ fprintf (st...
2019 Jun 28
3
[libnbd PATCH] tests: Enhance errors test
...415c378 100644
--- a/tests/errors.c
+++ b/tests/errors.c
@@ -27,12 +27,40 @@
#include <libnbd.h>
+#define MAXSIZE (65 * 1024 * 1024) /* Oversize on purpose */
+
+static char *progname;
+static char buf[MAXSIZE];
+
+static void
+check (int experr, const char *prefix)
+{
+ const char *msg = nbd_get_error ();
+ int errnum = nbd_get_errno ();
+
+ printf ("error: \"%s\"\n", msg);
+ printf ("errno: %d (%s)\n", errnum, strerror (errnum));
+ if (strncmp (msg, prefix, strlen (prefix)) != 0) {
+ fprintf (stderr, "%s: test failed: missing context prefix: %s\n",...
2023 Mar 09
1
[PATCH libnbd v4] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...ce the key has already been destroyed in step (2)), and this
> causes us to call pthread_setspecific which returns EINVAL because
> glibc is able to detect invalid use of a pthread_key_t after it has
> been destroyed. In any case, the error message is lost, and any
> subsequent call to nbd_get_error() will return NULL.
>
> (5) We enter the %DEAD state, where there is an assertion that
> nbd_get_error() is not NULL. This assertion is supposed to be for
> checking that the code called set_error() before entering the %DEAD
> state. Although we did call set_error(), the error mes...
2020 Aug 14
0
[libnbd PATCH v2 09/13] info: Simplify by using nbd_opt_go
...{
- perror ("asprintf");
- exit (EXIT_FAILURE);
- }
- free (xmluri->path);
- xmluri->path = new_path;
- new_uri = (char *) xmlSaveUri (xmluri);
+ if (!name) {
+ fprintf (stderr, "unable to obtain export name: %s\n",
+ nbd_get_error ());
+ exit (EXIT_FAILURE);
+ }
- /* Connect to the new URI. */
- nbd2 = nbd_create ();
- if (nbd2 == NULL) {
- fprintf (stderr, "%s\n", nbd_get_error ());
- exit (EXIT_FAILURE);
- }
- nbd_set_uri_allow_local_file (nbd2, true); /* Allow ?tls...
2019 Aug 10
0
[PATCH libnbd 4/9] api: Change nbd_set_tls (, 2) -> nbd_set_tls (, LIBNBD_TLS_REQUIRE).
....c
+++ b/interop/interop.c
@@ -77,7 +77,7 @@ main (int argc, char *argv[])
fprintf (stderr, "skip: compiled without TLS support\n");
exit (77);
}
- if (nbd_set_tls (nbd, 2) == -1) {
+ if (nbd_set_tls (nbd, LIBNBD_TLS_REQUIRE) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
diff --git a/lib/connect.c b/lib/connect.c
index 5e760c6..f98bcdb 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -292,7 +292,7 @@ nbd_unlocked_aio_connect_uri (struct nbd_handle *h, const char *raw_uri)
}
/* TLS */
- if (tls && nbd_unlocked_se...
2023 Mar 08
2
[libnbd PATCH v2] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...undefined behavior per POSIX, since the key has already been destroyed
in step (2), but glibc handles it by returning NULL with an EINVAL
error (POSIX recommends, but can't mandate, that course of action for
technical reasons). In any case, the error message is lost, and any
subsequent call to nbd_get_error() will return NULL.
(5) We enter the %DEAD state, where there is an assertion that
nbd_get_error() is not NULL. This assertion is supposed to be for
checking that the code called set_error() before entering the %DEAD
state. Although we did call set_error(), the error message was lost
at step (4)...
2023 Mar 09
1
[PATCH libnbd v4] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...ch returns
NULL (since the key has already been destroyed in step (2)), and this
causes us to call pthread_setspecific which returns EINVAL because
glibc is able to detect invalid use of a pthread_key_t after it has
been destroyed. In any case, the error message is lost, and any
subsequent call to nbd_get_error() will return NULL.
(5) We enter the %DEAD state, where there is an assertion that
nbd_get_error() is not NULL. This assertion is supposed to be for
checking that the code called set_error() before entering the %DEAD
state. Although we did call set_error(), the error message was lost
at step (4)...
2023 Mar 09
2
[PATCH libnbd v3] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...ch returns
NULL (since the key has already been destroyed in step (2)), and this
causes us to call pthread_setspecific which returns EINVAL because
glibc is able to detect invalid use of a pthread_key_t after it has
been destroyed. In any case, the error message is lost, and any
subsequent call to nbd_get_error() will return NULL.
(5) We enter the %DEAD state, where there is an assertion that
nbd_get_error() is not NULL. This assertion is supposed to be for
checking that the code called set_error() before entering the %DEAD
state. Although we did call set_error(), the error message was lost
at step (4)...
2019 Aug 10
0
[PATCH libnbd 9/9] FOR DISCUSSION ONLY: api: Add ‘allow’ parameter to nbd_connect_uri to control permitted URIs.
...har *argv[])
/* Connect synchronously as this is simpler. */
if (argc == 2) {
if (strstr (argv[1], "://")) {
- if (nbd_connect_uri (nbd, argv[1]) == -1) {
+ if (nbd_connect_uri (nbd, argv[1], LIBNBD_CONNECT_URI_ALL) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
diff --git a/examples/strict-structured-reads.c b/examples/strict-structured-reads.c
index b3880b7..fcf1186 100644
--- a/examples/strict-structured-reads.c
+++ b/examples/strict-structured-reads.c
@@ -197,7 +197,7 @@ main (int argc, char *argv[])
exi...
2019 May 28
0
[libnbd PATCH 2/4] api: Rearrange flags argument to block_status
...rty-bitmap.c
+++ b/interop/dirty-bitmap.c
@@ -106,13 +106,13 @@ main (int argc, char *argv[])
exit (EXIT_FAILURE);
}
- if (nbd_block_status (nbd, exportsize, 0, 0, NULL, cb) == -1) {
+ if (nbd_block_status (nbd, exportsize, 0, NULL, cb, 0) == -1) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
assert (calls == 0x11);
- if (nbd_block_status (nbd, exportsize, 0, LIBNBD_CMD_FLAG_REQ_ONE,
- &exportsize, cb) == -1) {
+ if (nbd_block_status (nbd, exportsize, 0, &exportsize, cb,
+ LIBNBD_CMD_FLAG_REQ_...
2020 Sep 11
3
[libnbd PATCH] api: Add LIBNBD_SHUTDOWN_IMMEDIATE flag
...void
-abort_commands (struct nbd_handle *h, struct command **list)
+void
+nbd_internal_abort_commands (struct nbd_handle *h, struct command **list)
{
struct command *next, *cmd;
@@ -179,8 +179,8 @@ STATE_MACHINE {
/* The caller should have used set_error() before reaching here */
assert (nbd_get_error ());
abort_option (h);
- abort_commands (h, &h->cmds_to_issue);
- abort_commands (h, &h->cmds_in_flight);
+ nbd_internal_abort_commands (h, &h->cmds_to_issue);
+ nbd_internal_abort_commands (h, &h->cmds_in_flight);
h->in_flight = 0;
if (h->sock) {...
2023 Mar 09
1
[PATCH libnbd v3] lib/errors.c: Fix assert fail in exit path in multi-threaded code
...ce the key has already been destroyed in step (2)), and this
> causes us to call pthread_setspecific which returns EINVAL because
> glibc is able to detect invalid use of a pthread_key_t after it has
> been destroyed. In any case, the error message is lost, and any
> subsequent call to nbd_get_error() will return NULL.
>
> (5) We enter the %DEAD state, where there is an assertion that
> nbd_get_error() is not NULL. This assertion is supposed to be for
> checking that the code called set_error() before entering the %DEAD
> state. Although we did call set_error(), the error mes...