Repl issue reproduced

c_playground/main.c

@@ -1,12 +1,15 @@
 #include <assert.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #include <cbl/CBLCollection.h>
 #include <cbl/CBLDatabase.h>
 #include <cbl/CBLDocument.h>
 #include <cbl/CBLLog.h>
 #include <cbl/CBLQuery.h>
+#include <cbl/CBLReplicator.h>
 
 const char* DOMAINS[] = { "Database", "Query", "Replicator", "Network" };
 const char* LEVEL_PREFIX[] = { "((", "_", "", "WARNING: ", "***ERROR: " };
@@ -22,125 +25,223 @@ void log_callback(CBLLogDomain domain, CBLLogLevel level, FLString message) {
     );
 }
 
-int main(void) {
-    CBLConsoleLogSink log_sink = {};
-    log_sink.level = kCBLLogDebug;
-    log_sink.domains = kCBLLogDomainMaskAll;
-
-    CBLLogSinks_SetConsole(log_sink);
-
-    // Open database
+void startReplication(CBLDatabase *db, bool writer, bool deleter) {
     CBLError error;
-    CBLDatabaseConfiguration config = {FLSTR("/tmp")};
-    CBLDatabase* db = CBLDatabase_Open(FLSTR("my_db"), &config, &error);
-    assert(db);
-
-    CBLCollection* default_collection = CBLDatabase_DefaultCollection(db, &error);
-    assert(default_collection);
-
-    // Create a document
-    CBLDocument* doc = CBLDocument_Create();
+    CBLEndpoint* endpoint = CBLEndpoint_CreateWithURL(FLSTR("wss://sync-gateway-staging.doctolib.com:443/billeo-db"), &error);
+    assert(endpoint);
+
+    char* token = writer ? "0febaaafc5368d7e2f8663e0ee08b024a47278c1"
+        : (deleter ? "61b8b461214c7d6c6c7365dbc4e824111bc4167a"
+            : "49230c1a31db39e1d5e96e5fbdf1bf93099b53b5"
+        );
+    char cookie[64];
+    snprintf(cookie, sizeof cookie, "SyncGatewaySession=%s", token);
+
+    FLMutableDict headers = FLMutableDict_New();
+    FLMutableDict_SetString(headers, FLSTR("Cookie"), FLStr(cookie));
+
+    FLMutableArray emptyArray = FLMutableArray_New();
+    FLArray array = FLMutableArray_GetSource(emptyArray);
+
+    CBLReplicatorConfiguration config = {
+        .database = db,
+        .endpoint = endpoint,
+        .replicatorType = kCBLReplicatorTypePushAndPull,
+        .continuous = true,
+        .disableAutoPurge = true,
+        .maxAttempts = 1,
+        .maxAttemptWaitTime = 0,
+        .heartbeat = 55,
+        .authenticator = NULL,
+        .proxy = NULL,
+        .headers = headers,
+        .pinnedServerCertificate = FLStr(NULL),
+        .trustedRootCertificates = FLStr(NULL),
+        .channels = array,
+        .documentIDs = array,
+        .pushFilter = NULL,
+        .pullFilter = NULL,
+        .conflictResolver = NULL,
+        .context = NULL,
+        .collections = NULL,
+        .collectionCount = 0,
+        .acceptParentDomainCookies = false,
+    };
+
+    CBLReplicator* replicator = CBLReplicator_Create(&config, &error);
+    assert(replicator);
+
+    CBLReplicator_Start(replicator, false);
+}
 
-    FILE* fp = fopen("doc.json", "r");
+void createDocuments(CBLDatabase *db) {
+    CBLError error;
 
-    char json_format[4096];
-    int len = fread(json_format, 1, 4096, fp);
+    FILE* fp = fopen("replication_issue.json", "r");
+    if (!fp) {
+        printf("Failed to open replication_issue.json\n");
+        return;
+    }
+
+    fseek(fp, 0, SEEK_END);
+    long file_size = ftell(fp);
+    fseek(fp, 0, SEEK_SET);
+
+    char* json_format = malloc(file_size + 1);
+    if (!json_format) {
+        printf("Failed to allocate memory for JSON\n");
+        fclose(fp);
+        return;
+    }
+
+    size_t len = fread(json_format, 1, file_size, fp);
+    json_format[len] = '\0';
 
     fclose(fp);
 
     FLString json = {};
-    json.buf = &json_format;
+    json.buf = json_format;
     json.size = len;
-    bool set_doc_content = CBLDocument_SetJSON(doc, json, &error);
 
     // Save the document
-    bool saved = CBLDatabase_SaveDocument(db, doc, &error);
-    assert(saved);
-
-    CBLDocument_Release(doc);
-
-    // Simple array index
-    CBLArrayIndexConfiguration array_index_config = {};
-    array_index_config.expressionLanguage = kCBLN1QLLanguage;
-    array_index_config.path = FLSTR("likes");
-    array_index_config.expressions = FLSTR("");
+    const int idOffset = 100;
+    for (int i = 0; i < 100; ++i) {
+        char id[64];
+        snprintf(id, sizeof id, "replication_issue_%d", idOffset + i);
+
+        CBLDocument* doc = CBLDocument_CreateWithID(FLStr(id));
+        bool set_doc_content = CBLDocument_SetJSON(doc, json, &error);
+        assert(set_doc_content);
+
+        FLMutableDict properties = CBLDocument_MutableProperties(doc);
+        FLMutableDict_SetString(properties, FLSTR("owner"), FLSTR("00102204"));
+
+        bool saved = CBLDatabase_SaveDocument(db, doc, &error);
+        assert(saved);
+
+        CBLDocument_Release(doc);
+    }
+
+    free(json_format);
+}
 
-    bool array_index_created = CBLCollection_CreateArrayIndex(
-        default_collection,
-        FLSTR("one_level"),
-        array_index_config,
+void getRemainingDocuments(CBLDatabase *db, FLString* result, int* count) {
+    CBLError error;
+    int errorPos = 0;
+    CBLQuery* query = CBLDatabase_CreateQuery(
+        db,
+        kCBLN1QLLanguage,
+        FLSTR("SELECT meta().id FROM _ WHERE _.type='ReplicationIssue' LIMIT 10"),
+        &errorPos,
         &error
     );
-    assert(array_index_created);
+    assert(query);
+
+    CBLResultSet* queryResult = CBLQuery_Execute(query, &error);
+    assert(queryResult);
+
+    int i = 0;
+    while (CBLResultSet_Next(queryResult) && i < 10) {
+        FLValue id = CBLResultSet_ValueAtIndex(queryResult, 0);
+        result[i++] = FLSliceResult_AsSlice(FLSlice_Copy(FLValue_AsString(id)));
+    }
+    *count = i;
+
+    CBLResultSet_Release(queryResult);
+    CBLQuery_Release(query);
+}
 
-    int error_pos = 0;
+int getDocumentCount(CBLDatabase *db) {
+    CBLError error;
+    int errorPos = 0;
     CBLQuery* query = CBLDatabase_CreateQuery(
         db,
         kCBLN1QLLanguage,
-        FLSTR("SELECT _.name, _like FROM _ UNNEST _.likes as _like WHERE _like = 'travel'"),
-        &error_pos,
+        FLSTR("SELECT COUNT(*) FROM _ WHERE _.type='ReplicationIssue'"),
+        &errorPos,
         &error
     );
     assert(query);
 
-    FLSliceResult explain_result = CBLQuery_Explain(query);
-    assert(strstr(explain_result.buf, "USING INDEX one_level"));
+    CBLResultSet* queryResult = CBLQuery_Execute(query, &error);
+    assert(queryResult);
 
-    CBLResultSet* query_result = CBLQuery_Execute(query, &error);
-    assert(query_result);
+    assert(CBLResultSet_Next(queryResult));
+    FLValue count = CBLResultSet_ValueAtIndex(queryResult, 0);
 
-    assert(CBLResultSet_Next(query_result));
+    int result = FLValue_AsInt(count);
 
-    FLArray row = CBLResultSet_ResultArray(query_result);
-    FLValue name = FLArray_Get(row, 0);
-    assert(strcmp(FLValue_AsString(name).buf, "Sam") == 0);
+    CBLResultSet_Release(queryResult);
+    CBLQuery_Release(query);
 
-    assert(!CBLResultSet_Next(query_result));
+    return result;
+}
 
-    CBLResultSet_Release(query_result);
-    CBLQuery_Release(query);
+void deleteDocuments(CBLDatabase *db) {
+    bool remaining = true;
+    CBLError error;
 
-    // Complex array index
-    array_index_config.expressionLanguage = kCBLN1QLLanguage;
-    array_index_config.path = FLSTR("contacts[].phones");
-    array_index_config.expressions = FLSTR("type");
+    while (remaining) {
+        sleep(1);
 
-    array_index_created = CBLCollection_CreateArrayIndex(
-        default_collection,
-        FLSTR("two_level"),
-        array_index_config,
-        &error
-    );
-    assert(array_index_created);
+        FLString documents[10];
+        int count = 0;
+        getRemainingDocuments(db, documents, &count);
 
-    query = CBLDatabase_CreateQuery(
-        db,
-        kCBLN1QLLanguage,
-        FLSTR("SELECT _.name, contact.type, phone.number FROM _ UNNEST _.contacts as contact UNNEST contact.phones as phone WHERE phone.type = 'mobile'"),
-        &error_pos,
-        &error
-    );
-    assert(query);
+        remaining = (count > 0);
 
-    explain_result = CBLQuery_Explain(query);
-    assert(strstr(explain_result.buf, "USING INDEX two_level"));
+        for (int i = 0; i < count; i++) {
+            const CBLDocument* doc = CBLDatabase_GetDocument(db, documents[i], &error);
+            if (doc) {
+                bool deleted = CBLDatabase_DeleteDocument(db, doc, &error);
+                assert(deleted);
+                CBLDocument_Release(doc);
+            }
+        }
+    }
+}
 
-    query_result = CBLQuery_Execute(query, &error);
-    assert(query_result);
+int main(void) {
+    CBLConsoleLogSink log_sink = {};
+    log_sink.level = kCBLLogDebug;
+    log_sink.domains = kCBLLogDomainMaskAll;
 
-    assert(CBLResultSet_Next(query_result));
+    CBLLogSinks_SetConsole(log_sink);
 
-    row = CBLResultSet_ResultArray(query_result);
-    name = FLArray_Get(row, 0);
-    assert(strcmp(FLValue_AsString(name).buf, "Sam") == 0);
+    // Step configuration
+    bool writer = false;
+    bool deleter = false;
 
-    assert(CBLResultSet_Next(query_result));
-    assert(!CBLResultSet_Next(query_result));
+    FLSlice databaseName = writer || deleter ? FLSTR("writer") : FLSTR("observer");
 
-    CBLResultSet_Release(query_result);
-    CBLQuery_Release(query);
+    // Open database
+    CBLError error;
+    CBLDatabaseConfiguration config = {FLSTR("/Users/antoinemenciere/Documents")};
+    CBLDatabase* db = CBLDatabase_Open(databaseName, &config, &error);
+    assert(db);
 
-    // Cleanup
-    bool closed = CBLDatabase_Delete(db, &error);
-    assert(closed);
+    // Start a replication
+    startReplication(db, writer, deleter);
+
+    // Create 100 documents if the 'writer' variable is on
+    if (writer) {
+        printf("\nStart creating documents\n\n");
+        createDocuments(db);
+        printf("\nFinish creating documents\n\n");
+    }
+
+    // Delete all documents if the 'deleter' variable is on
+    if (deleter) {
+        printf("\nStart deleting documents\n\n");
+        deleteDocuments(db);
+        printf("\nFinish deleting documents\n\n");
+    }
+
+    // Always end by an infinite loop, to let the replication run as long as needed
+    while (true) {
+        sleep(1);
+
+        int count = getDocumentCount(db);
+        printf("\nThere is %d document(s) in database\n\n", count);
+    }
 }