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13248e1688
Add qemuVhostUserFetchConfigs() to discover vhost-user helpers. qemuVhostUserFillDomainGPU() will find the first matching GPU helper with the required capabilities and set the associated vhost_user_binary. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Cole Robinson <crobinso@redhat.com>
133 lines
3.6 KiB
C
133 lines
3.6 KiB
C
#include <config.h>
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#include <inttypes.h>
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#include "testutils.h"
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#include "virfilewrapper.h"
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#include "qemu/qemu_vhost_user.h"
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#include "configmake.h"
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#define VIR_FROM_THIS VIR_FROM_QEMU
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/* A very basic test. Parse given JSON vhostuser description into
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* an internal structure, format it back and compare with the
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* contents of the file (minus some keys that are not parsed).
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*/
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static int
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testParseFormatVU(const void *opaque)
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{
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const char *filename = opaque;
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VIR_AUTOFREE(char *) path = NULL;
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VIR_AUTOPTR(qemuVhostUser) vu = NULL;
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VIR_AUTOFREE(char *) buf = NULL;
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VIR_AUTOPTR(virJSONValue) json = NULL;
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VIR_AUTOFREE(char *) expected = NULL;
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VIR_AUTOFREE(char *) actual = NULL;
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if (virAsprintf(&path, "%s/qemuvhostuserdata/%s",
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abs_srcdir, filename) < 0)
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return -1;
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if (!(vu = qemuVhostUserParse(path)))
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return -1;
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if (virFileReadAll(path,
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1024 * 1024, /* 1MiB */
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&buf) < 0)
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return -1;
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if (!(json = virJSONValueFromString(buf)))
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return -1;
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/* Description and tags are not parsed. */
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if (virJSONValueObjectRemoveKey(json, "description", NULL) < 0 ||
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virJSONValueObjectRemoveKey(json, "tags", NULL) < 0)
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return -1;
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if (!(expected = virJSONValueToString(json, true)))
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return -1;
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if (!(actual = qemuVhostUserFormat(vu)))
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return -1;
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return virTestCompareToString(expected, actual);
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}
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static int
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testVUPrecedence(const void *opaque ATTRIBUTE_UNUSED)
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{
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VIR_AUTOFREE(char *) fakehome = NULL;
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VIR_AUTOSTRINGLIST vuList = NULL;
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size_t nvuList;
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size_t i;
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const char *expected[] = {
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PREFIX "/share/qemu/vhost-user/30-gpu.json",
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SYSCONFDIR "/qemu/vhost-user/40-gpu.json",
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PREFIX "/share/qemu/vhost-user/60-gpu.json",
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};
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const size_t nexpected = ARRAY_CARDINALITY(expected);
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if (VIR_STRDUP(fakehome, abs_srcdir "/qemuvhostuserdata/home/user/.config") < 0)
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return -1;
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setenv("XDG_CONFIG_HOME", fakehome, 1);
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if (qemuVhostUserFetchConfigs(&vuList, false) < 0)
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return -1;
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if (!vuList) {
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fprintf(stderr, "Expected a non-NULL result, but got a NULL result\n");
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return -1;
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}
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nvuList = virStringListLength((const char **)vuList);
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for (i = 0; i < MAX(nvuList, nexpected); i++) {
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const char *e = i < nexpected ? expected[i] : NULL;
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const char *f = i < nvuList ? vuList[i] : NULL;
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if (STRNEQ_NULLABLE(e, f)) {
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fprintf(stderr,
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"Unexpected path (i=%zu). Expected %s got %s \n",
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i, NULLSTR(e), NULLSTR(f));
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return -1;
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}
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}
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return 0;
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}
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static int
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mymain(void)
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{
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int ret = 0;
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virFileWrapperAddPrefix(SYSCONFDIR "/qemu/vhost-user",
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abs_srcdir "/qemuvhostuserdata/etc/qemu/vhost-user");
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virFileWrapperAddPrefix(PREFIX "/share/qemu/vhost-user",
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abs_srcdir "/qemuvhostuserdata/usr/share/qemu/vhost-user");
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virFileWrapperAddPrefix("/home/user/.config/qemu/vhost-user",
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abs_srcdir "/qemuvhostuserdata/home/user/.config/qemu/vhost-user");
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#define DO_PARSE_TEST(filename) \
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do { \
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if (virTestRun("QEMU vhost-user " filename, \
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testParseFormatVU, filename) < 0) \
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ret = -1; \
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} while (0)
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DO_PARSE_TEST("usr/share/qemu/vhost-user/50-gpu.json");
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if (virTestRun("QEMU vhost-user precedence test", testVUPrecedence, NULL) < 0)
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ret = -1;
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virFileWrapperClearPrefixes();
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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VIR_TEST_MAIN(mymain)
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