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#include "clar_libgit2.h"
#include "git2/refdb.h"
#include "refdb.h"
static git_repository *g_repo;
static int g_expected = 0;
void test_threads_refdb__initialize(void)
{
g_repo = NULL;
}
void test_threads_refdb__cleanup(void)
{
cl_git_sandbox_cleanup();
g_repo = NULL;
}
#define REPEAT 20
#define THREADS 20
/* Number of references to create or delete in each thread */
#define NREFS 10
struct th_data {
cl_git_thread_err error;
int id;
const char *path;
};
static void *iterate_refs(void *arg)
{
struct th_data *data = (struct th_data *) arg;
git_reference_iterator *i;
git_reference *ref;
int count = 0, error;
git_repository *repo;
cl_git_thread_pass(data, git_repository_open(&repo, data->path));
do {
error = git_reference_iterator_new(&i, repo);
} while (error == GIT_ELOCKED);
cl_git_thread_pass(data, error);
for (count = 0; !git_reference_next(&ref, i); ++count) {
cl_assert(ref != NULL);
git_reference_free(ref);
}
if (g_expected > 0)
cl_assert_equal_i(g_expected, count);
git_reference_iterator_free(i);
git_repository_free(repo);
giterr_clear();
return arg;
}
static void *create_refs(void *arg)
{
int i, error;
struct th_data *data = (struct th_data *) arg;
git_oid head;
char name[128];
git_reference *ref[NREFS];
git_repository *repo;
cl_git_thread_pass(data, git_repository_open(&repo, data->path));
do {
error = git_reference_name_to_id(&head, repo, "HEAD");
} while (error == GIT_ELOCKED);
cl_git_thread_pass(data, error);
for (i = 0; i < NREFS; ++i) {
p_snprintf(name, sizeof(name), "refs/heads/thread-%03d-%02d", data->id, i);
do {
error = git_reference_create(&ref[i], repo, name, &head, 0, NULL);
} while (error == GIT_ELOCKED);
cl_git_thread_pass(data, error);
if (i == NREFS/2) {
git_refdb *refdb;
cl_git_thread_pass(data, git_repository_refdb(&refdb, repo));
do {
error = git_refdb_compress(refdb);
} while (error == GIT_ELOCKED);
cl_git_thread_pass(data, error);
git_refdb_free(refdb);
}
}
for (i = 0; i < NREFS; ++i)
git_reference_free(ref[i]);
git_repository_free(repo);
giterr_clear();
return arg;
}
static void *delete_refs(void *arg)
{
int i, error;
struct th_data *data = (struct th_data *) arg;
git_reference *ref;
char name[128];
git_repository *repo;
cl_git_thread_pass(data, git_repository_open(&repo, data->path));
for (i = 0; i < NREFS; ++i) {
p_snprintf(
name, sizeof(name), "refs/heads/thread-%03d-%02d", (data->id) & ~0x3, i);
if (!git_reference_lookup(&ref, repo, name)) {
do {
error = git_reference_delete(ref);
} while (error == GIT_ELOCKED);
/* Sometimes we race with other deleter threads */
if (error == GIT_ENOTFOUND)
error = 0;
cl_git_thread_pass(data, error);
git_reference_free(ref);
}
if (i == NREFS/2) {
git_refdb *refdb;
cl_git_thread_pass(data, git_repository_refdb(&refdb, repo));
do {
error = git_refdb_compress(refdb);
} while (error == GIT_ELOCKED);
cl_git_thread_pass(data, error);
git_refdb_free(refdb);
}
}
git_repository_free(repo);
giterr_clear();
return arg;
}
void test_threads_refdb__edit_while_iterate(void)
{
int r, t;
struct th_data th_data[THREADS];
git_oid head;
git_reference *ref;
char name[128];
git_refdb *refdb;
#ifdef GIT_THREADS
git_thread th[THREADS];
#endif
g_repo = cl_git_sandbox_init("testrepo2");
cl_git_pass(git_reference_name_to_id(&head, g_repo, "HEAD"));
/* make a bunch of references */
for (r = 0; r < 50; ++r) {
p_snprintf(name, sizeof(name), "refs/heads/starter-%03d", r);
cl_git_pass(git_reference_create(&ref, g_repo, name, &head, 0, NULL));
git_reference_free(ref);
}
cl_git_pass(git_repository_refdb(&refdb, g_repo));
cl_git_pass(git_refdb_compress(refdb));
git_refdb_free(refdb);
g_expected = -1;
g_repo = cl_git_sandbox_reopen(); /* reopen to flush caches */
for (t = 0; t < THREADS; ++t) {
void *(*fn)(void *arg);
switch (t & 0x3) {
case 0: fn = create_refs; break;
case 1: fn = delete_refs; break;
default: fn = iterate_refs; break;
}
th_data[t].id = t;
th_data[t].path = git_repository_path(g_repo);
#ifdef GIT_THREADS
cl_git_pass(git_thread_create(&th[t], fn, &th_data[t]));
#else
fn(&th_data[t]);
#endif
}
#ifdef GIT_THREADS
for (t = 0; t < THREADS; ++t) {
cl_git_pass(git_thread_join(&th[t], NULL));
cl_git_thread_check(&th_data[t]);
}
memset(th, 0, sizeof(th));
for (t = 0; t < THREADS; ++t) {
th_data[t].id = t;
cl_git_pass(git_thread_create(&th[t], iterate_refs, &th_data[t]));
}
for (t = 0; t < THREADS; ++t) {
cl_git_pass(git_thread_join(&th[t], NULL));
cl_git_thread_check(&th_data[t]);
}
#endif
}
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