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libvirt/tests/fdstreamtest.c
Erik Skultety 5165ff0971 src: More cleanup of some system headers already contained in internal.h 
All of the ones being removed are pulled in by internal.h. The only
exception is sanlock which expects the application to include <stdint.h>
before sanlock's headers, because sanlock prototypes use fixed width
int, but they don't include stdint.h themselves, so we have to leave
that one in place.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Acked-by: Michal Privoznik <mprivozn@redhat.com>
2018-09-20 10:16:39 +02:00

347 lines
9.3 KiB
C
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/*
* Copyright (C) 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <fcntl.h>
#include "testutils.h"
#include "virfdstream.h"
#include "datatypes.h"
#include "virerror.h"
#include "viralloc.h"
#include "virlog.h"
#include "virstring.h"
#include "virfile.h"
#include "virutil.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.fdstreamtest");
#define PATTERN_LEN 256
static int testFDStreamReadCommon(const char *scratchdir, bool blocking)
{
int fd = -1;
char *file = NULL;
int ret = -1;
char *pattern = NULL;
char *buf = NULL;
virStreamPtr st = NULL;
size_t i;
virConnectPtr conn = NULL;
int flags = 0;
if (!blocking)
flags |= VIR_STREAM_NONBLOCK;
if (!(conn = virConnectOpen("test:///default")))
goto cleanup;
if (VIR_ALLOC_N(pattern, PATTERN_LEN) < 0 ||
VIR_ALLOC_N(buf, PATTERN_LEN) < 0)
goto cleanup;
for (i = 0; i < PATTERN_LEN; i++)
pattern[i] = i;
if (virAsprintf(&file, "%s/input.data", scratchdir) < 0)
goto cleanup;
if ((fd = open(file, O_CREAT|O_WRONLY|O_EXCL, 0600)) < 0)
goto cleanup;
for (i = 0; i < 10; i++) {
if (safewrite(fd, pattern, PATTERN_LEN) != PATTERN_LEN)
goto cleanup;
}
if (VIR_CLOSE(fd) < 0)
goto cleanup;
if (!(st = virStreamNew(conn, flags)))
goto cleanup;
/* Start reading 1/2 way through first pattern
* and end 1/2 way through last pattern
*/
if (virFDStreamOpenFile(st, file,
PATTERN_LEN / 2, PATTERN_LEN * 9,
O_RDONLY) < 0)
goto cleanup;
for (i = 0; i < 10; i++) {
size_t offset = 0;
size_t want;
if (i == 0)
want = PATTERN_LEN / 2;
else
want = PATTERN_LEN;
while (want > 0) {
int got;
reread:
got = st->driver->streamRecv(st, buf + offset, want);
if (got < 0) {
if (got == -2 && !blocking) {
usleep(20 * 1000);
goto reread;
}
virFilePrintf(stderr, "Failed to read stream: %s\n",
virGetLastErrorMessage());
goto cleanup;
}
if (got == 0) {
/* Expect EOF 1/2 through last pattern */
if (i == 9 && want == (PATTERN_LEN / 2))
break;
virFilePrintf(stderr, "Unexpected EOF block %zu want %zu\n",
i, want);
goto cleanup;
}
offset += got;
want -= got;
}
if (i == 0) {
if (memcmp(buf, pattern + (PATTERN_LEN / 2), PATTERN_LEN / 2) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
} else if (i == 9) {
if (memcmp(buf, pattern, PATTERN_LEN / 2) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
} else {
if (memcmp(buf, pattern, PATTERN_LEN) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
}
}
if (st->driver->streamFinish(st) != 0) {
virFilePrintf(stderr, "Failed to finish stream: %s\n",
virGetLastErrorMessage());
goto cleanup;
}
ret = 0;
cleanup:
if (st)
virStreamFree(st);
VIR_FORCE_CLOSE(fd);
if (file != NULL)
unlink(file);
if (conn)
virConnectClose(conn);
VIR_FREE(file);
VIR_FREE(pattern);
VIR_FREE(buf);
return ret;
}
static int testFDStreamReadBlock(const void *data)
{
return testFDStreamReadCommon(data, true);
}
static int testFDStreamReadNonblock(const void *data)
{
return testFDStreamReadCommon(data, false);
}
static int testFDStreamWriteCommon(const char *scratchdir, bool blocking)
{
int fd = -1;
char *file = NULL;
int ret = -1;
char *pattern = NULL;
char *buf = NULL;
virStreamPtr st = NULL;
size_t i;
virConnectPtr conn = NULL;
int flags = 0;
if (!blocking)
flags |= VIR_STREAM_NONBLOCK;
if (!(conn = virConnectOpen("test:///default")))
goto cleanup;
if (VIR_ALLOC_N(pattern, PATTERN_LEN) < 0 ||
VIR_ALLOC_N(buf, PATTERN_LEN) < 0)
goto cleanup;
for (i = 0; i < PATTERN_LEN; i++)
pattern[i] = i;
if (virAsprintf(&file, "%s/input.data", scratchdir) < 0)
goto cleanup;
if (!(st = virStreamNew(conn, flags)))
goto cleanup;
/* Start writing 1/2 way through first pattern
* and end 1/2 way through last pattern
*/
if (virFDStreamCreateFile(st, file,
PATTERN_LEN / 2, PATTERN_LEN * 9,
O_WRONLY, 0600) < 0)
goto cleanup;
for (i = 0; i < 10; i++) {
size_t offset = 0;
size_t want;
if (i == 0)
want = PATTERN_LEN / 2;
else
want = PATTERN_LEN;
while (want > 0) {
int got;
rewrite:
got = st->driver->streamSend(st, pattern + offset, want);
if (got < 0) {
if (got == -2 && !blocking) {
usleep(20 * 1000);
goto rewrite;
}
if (i == 9 &&
want == (PATTERN_LEN / 2))
break;
virFilePrintf(stderr, "Failed to write stream: %s\n",
virGetLastErrorMessage());
goto cleanup;
}
offset += got;
want -= got;
}
}
if (st->driver->streamFinish(st) != 0) {
virFilePrintf(stderr, "Failed to finish stream: %s\n",
virGetLastErrorMessage());
goto cleanup;
}
if ((fd = open(file, O_RDONLY)) < 0)
goto cleanup;
for (i = 0; i < 10; i++) {
size_t want, got;
if (i == 9)
want = PATTERN_LEN / 2;
else
want = PATTERN_LEN;
if ((got = saferead(fd, buf, want)) != want) {
virFilePrintf(stderr,
"Short read from data, i=%zu got=%zu want=%zu\n",
i, got, want);
goto cleanup;
}
if (i == 0) {
size_t j;
for (j = 0; j < (PATTERN_LEN / 2); j++) {
if (buf[j] != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
}
if (memcmp(buf + (PATTERN_LEN / 2), pattern, PATTERN_LEN / 2) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
} else if (i == 9) {
if (memcmp(buf, pattern, PATTERN_LEN / 2) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
} else {
if (memcmp(buf, pattern, PATTERN_LEN) != 0) {
virFilePrintf(stderr, "Mismatched pattern data iteration %zu\n", i);
goto cleanup;
}
}
}
if (VIR_CLOSE(fd) < 0)
goto cleanup;
ret = 0;
cleanup:
if (st)
virStreamFree(st);
VIR_FORCE_CLOSE(fd);
if (file != NULL)
unlink(file);
if (conn)
virConnectClose(conn);
VIR_FREE(file);
VIR_FREE(pattern);
VIR_FREE(buf);
return ret;
}
static int testFDStreamWriteBlock(const void *data)
{
return testFDStreamWriteCommon(data, true);
}
static int testFDStreamWriteNonblock(const void *data)
{
return testFDStreamWriteCommon(data, false);
}
#define SCRATCHDIRTEMPLATE abs_builddir "/fdstreamdir-XXXXXX"
static int
mymain(void)
{
char scratchdir[] = SCRATCHDIRTEMPLATE;
int ret = 0;
if (!mkdtemp(scratchdir)) {
virFilePrintf(stderr, "Cannot create fdstreamdir");
abort();
}
if (virTestRun("Stream read blocking ", testFDStreamReadBlock, scratchdir) < 0)
ret = -1;
if (virTestRun("Stream read non-blocking ", testFDStreamReadNonblock, scratchdir) < 0)
ret = -1;
if (virTestRun("Stream write blocking ", testFDStreamWriteBlock, scratchdir) < 0)
ret = -1;
if (virTestRun("Stream write non-blocking ", testFDStreamWriteNonblock, scratchdir) < 0)
ret = -1;
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(scratchdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN(mymain)
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