plugins/lttng-utils/copy.c: fix uninitialized use warning
[babeltrace.git] / plugins / ctf / fs-src / fs.c
index 55321b2fd4785d8b94f0617ad0a4e577c090c412..47f780a9c6d8109138536eae7d8f059df74a1812 100644 (file)
 #include "data-stream-file.h"
 #include "file.h"
 #include "../common/metadata/decoder.h"
+#include "query.h"
 
-#define PRINT_ERR_STREAM       ctf_fs->error_fp
-#define PRINT_PREFIX           "ctf-fs"
-#define PRINT_DBG_CHECK                ctf_fs_debug
-#include "../print.h"
-#define METADATA_TEXT_SIG      "/* CTF 1.8"
+#define BT_LOG_TAG "PLUGIN-CTF-FS-SRC"
+#include "logging.h"
 
 BT_HIDDEN
 bool ctf_fs_debug;
@@ -267,13 +265,13 @@ void port_data_destroy(void *data) {
 }
 
 static
-int create_one_port_for_trace(struct ctf_fs_trace *ctf_fs_trace,
+int create_one_port_for_trace(struct ctf_fs_component *ctf_fs,
+               struct ctf_fs_trace *ctf_fs_trace,
                struct ctf_fs_ds_file_group *ds_file_group)
 {
        int ret = 0;
        struct ctf_fs_port_data *port_data = NULL;
        GString *port_name = NULL;
-       struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
        struct ctf_fs_ds_file_info *ds_file_info =
                g_ptr_array_index(ds_file_group->ds_file_infos, 0);
 
@@ -290,7 +288,7 @@ int create_one_port_for_trace(struct ctf_fs_trace *ctf_fs_trace,
        assert(ds_file_group->ds_file_infos->len > 0);
        ds_file_info = g_ptr_array_index(ds_file_group->ds_file_infos, 0);
        g_string_assign(port_name, ds_file_info->path->str);
-       PDBG("Creating one port named `%s`\n", port_name->str);
+       BT_LOGD("Creating one port named `%s`", port_name->str);
 
        /* Create output port for this file */
        port_data = g_new0(struct ctf_fs_port_data, 1);
@@ -322,10 +320,10 @@ end:
 }
 
 static
-int create_ports_for_trace(struct ctf_fs_trace *ctf_fs_trace)
+int create_ports_for_trace(struct ctf_fs_component *ctf_fs,
+               struct ctf_fs_trace *ctf_fs_trace)
 {
        int ret = 0;
-       struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
        size_t i;
 
        /* Create one output port for each stream file group */
@@ -333,9 +331,10 @@ int create_ports_for_trace(struct ctf_fs_trace *ctf_fs_trace)
                struct ctf_fs_ds_file_group *ds_file_group =
                        g_ptr_array_index(ctf_fs_trace->ds_file_groups, i);
 
-               ret = create_one_port_for_trace(ctf_fs_trace, ds_file_group);
+               ret = create_one_port_for_trace(ctf_fs, ctf_fs_trace,
+                       ds_file_group);
                if (ret) {
-                       PERR("Cannot create output port.\n");
+                       BT_LOGE("Cannot create output port.");
                        goto end;
                }
        }
@@ -622,7 +621,6 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
        struct bt_ctf_field *packet_header_field = NULL;
        struct bt_ctf_field *packet_context_field = NULL;
        struct bt_ctf_stream_class *stream_class = NULL;
-       struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
        uint64_t stream_instance_id = -1ULL;
        uint64_t begin_ns = -1ULL;
        struct ctf_fs_ds_file_group *ds_file_group = NULL;
@@ -634,7 +632,7 @@ int add_ds_file_to_ds_file_group(struct ctf_fs_trace *ctf_fs_trace,
                ctf_fs_trace, path, &packet_header_field,
                &packet_context_field);
        if (ret) {
-               PERR("Cannot get stream file's first packet's header and context fields (`%s`).\n",
+               BT_LOGE("Cannot get stream file's first packet's header and context fields (`%s`).",
                        path);
                goto error;
        }
@@ -748,12 +746,11 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
        const char *basename;
        GError *error = NULL;
        GDir *dir = NULL;
-       struct ctf_fs_component *ctf_fs = ctf_fs_trace->ctf_fs;
 
        /* Check each file in the path directory, except specific ones */
        dir = g_dir_open(ctf_fs_trace->path->str, 0, &error);
        if (!dir) {
-               PERR("Cannot open directory `%s`: %s (code %d)\n",
+               BT_LOGE("Cannot open directory `%s`: %s (code %d)",
                        ctf_fs_trace->path->str, error->message,
                        error->code);
                goto error;
@@ -764,21 +761,21 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
 
                if (!strcmp(basename, CTF_FS_METADATA_FILENAME)) {
                        /* Ignore the metadata stream. */
-                       PDBG("Ignoring metadata file `%s/%s`\n",
+                       BT_LOGD("Ignoring metadata file `%s/%s`",
                                ctf_fs_trace->path->str, basename);
                        continue;
                }
 
                if (basename[0] == '.') {
-                       PDBG("Ignoring hidden file `%s/%s`\n",
+                       BT_LOGD("Ignoring hidden file `%s/%s`",
                                ctf_fs_trace->path->str, basename);
                        continue;
                }
 
                /* Create the file. */
-               file = ctf_fs_file_create(ctf_fs);
+               file = ctf_fs_file_create();
                if (!file) {
-                       PERR("Cannot create stream file object for file `%s/%s`\n",
+                       BT_LOGE("Cannot create stream file object for file `%s/%s`",
                                ctf_fs_trace->path->str, basename);
                        goto error;
                }
@@ -787,22 +784,22 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
                g_string_append_printf(file->path, "%s/%s",
                                ctf_fs_trace->path->str, basename);
                if (!g_file_test(file->path->str, G_FILE_TEST_IS_REGULAR)) {
-                       PDBG("Ignoring non-regular file `%s`\n",
+                       BT_LOGD("Ignoring non-regular file `%s`",
                                file->path->str);
                        ctf_fs_file_destroy(file);
                        file = NULL;
                        continue;
                }
 
-               ret = ctf_fs_file_open(ctf_fs, file, "rb");
+               ret = ctf_fs_file_open(file, "rb");
                if (ret) {
-                       PERR("Cannot open stream file `%s`\n", file->path->str);
+                       BT_LOGE("Cannot open stream file `%s`", file->path->str);
                        goto error;
                }
 
                if (file->size == 0) {
                        /* Skip empty stream. */
-                       PDBG("Ignoring empty file `%s`\n", file->path->str);
+                       BT_LOGD("Ignoring empty file `%s`", file->path->str);
                        ctf_fs_file_destroy(file);
                        continue;
                }
@@ -810,7 +807,7 @@ int create_ds_file_groups(struct ctf_fs_trace *ctf_fs_trace)
                ret = add_ds_file_to_ds_file_group(ctf_fs_trace,
                        file->path->str);
                if (ret) {
-                       PDBG("Cannot add stream file `%s` to stream file group\n",
+                       BT_LOGD("Cannot add stream file `%s` to stream file group",
                                file->path->str);
                        ctf_fs_file_destroy(file);
                        goto error;
@@ -875,8 +872,8 @@ end:
 }
 
 static
-struct ctf_fs_trace *ctf_fs_trace_create(struct ctf_fs_component *ctf_fs,
-               const char *path, const char *name)
+struct ctf_fs_trace *ctf_fs_trace_create(const char *path, const char *name,
+               struct metadata_overrides *overrides)
 {
        struct ctf_fs_trace *ctf_fs_trace;
        int ret;
@@ -886,7 +883,6 @@ struct ctf_fs_trace *ctf_fs_trace_create(struct ctf_fs_component *ctf_fs,
                goto end;
        }
 
-       ctf_fs_trace->ctf_fs = ctf_fs;
        ctf_fs_trace->path = g_string_new(path);
        if (!ctf_fs_trace->path) {
                goto error;
@@ -908,7 +904,7 @@ struct ctf_fs_trace *ctf_fs_trace_create(struct ctf_fs_component *ctf_fs,
                goto error;
        }
 
-       ret = ctf_fs_metadata_set_trace(ctf_fs_trace);
+       ret = ctf_fs_metadata_set_trace(ctf_fs_trace, overrides);
        if (ret) {
                goto error;
        }
@@ -923,11 +919,6 @@ struct ctf_fs_trace *ctf_fs_trace_create(struct ctf_fs_component *ctf_fs,
                goto error;
        }
 
-       ret = create_ports_for_trace(ctf_fs_trace);
-       if (ret) {
-               goto error;
-       }
-
        /*
         * create_ds_file_groups() created all the streams that this
         * trace needs. There won't be any more. Therefore it is safe to
@@ -968,21 +959,20 @@ end:
 }
 
 static
-int add_trace_path(struct ctf_fs_component *ctf_fs, GList **trace_paths,
-               const char *path)
+int add_trace_path(GList **trace_paths, const char *path)
 {
        GString *norm_path = NULL;
        int ret = 0;
 
        norm_path = bt_common_normalize_path(path, NULL);
        if (!norm_path) {
-               PERR("Failed to normalize path `%s`.\n", path);
+               BT_LOGE("Failed to normalize path `%s`.", path);
                ret = -1;
                goto end;
        }
 
        if (strcmp(norm_path->str, "/") == 0) {
-               PERR("Opening a trace in `/` is not supported.\n");
+               BT_LOGE("Opening a trace in `/` is not supported.");
                ret = -1;
                goto end;
        }
@@ -999,9 +989,8 @@ end:
        return ret;
 }
 
-static
-int find_ctf_traces(struct ctf_fs_component *ctf_fs,
-               GList **trace_paths, const char *start_path)
+BT_HIDDEN
+int ctf_fs_find_traces(GList **trace_paths, const char *start_path)
 {
        int ret;
        GError *error = NULL;
@@ -1019,7 +1008,7 @@ int find_ctf_traces(struct ctf_fs_component *ctf_fs,
                 * Stop recursion: a CTF trace cannot contain another
                 * CTF trace.
                 */
-               ret = add_trace_path(ctf_fs, trace_paths, start_path);
+               ret = add_trace_path(trace_paths, start_path);
                goto end;
        }
 
@@ -1032,12 +1021,12 @@ int find_ctf_traces(struct ctf_fs_component *ctf_fs,
        dir = g_dir_open(start_path, 0, &error);
        if (!dir) {
                if (error->code == G_FILE_ERROR_ACCES) {
-                       PDBG("Cannot open directory `%s`: %s (code %d): continuing\n",
+                       BT_LOGD("Cannot open directory `%s`: %s (code %d): continuing",
                                start_path, error->message, error->code);
                        goto end;
                }
 
-               PERR("Cannot open directory `%s`: %s (code %d)\n",
+               BT_LOGE("Cannot open directory `%s`: %s (code %d)",
                        start_path, error->message, error->code);
                ret = -1;
                goto end;
@@ -1052,7 +1041,7 @@ int find_ctf_traces(struct ctf_fs_component *ctf_fs,
                }
 
                g_string_printf(sub_path, "%s/%s", start_path, basename);
-               ret = find_ctf_traces(ctf_fs, trace_paths, sub_path->str);
+               ret = ctf_fs_find_traces(trace_paths, sub_path->str);
                g_string_free(sub_path, TRUE);
                if (ret) {
                        goto end;
@@ -1071,8 +1060,8 @@ end:
        return ret;
 }
 
-static
-GList *create_trace_names(GList *trace_paths, const char *base_path) {
+BT_HIDDEN
+GList *ctf_fs_create_trace_names(GList *trace_paths, const char *base_path) {
        GList *trace_names = NULL;
        GList *node;
        const char *last_sep;
@@ -1135,28 +1124,32 @@ int create_ctf_fs_traces(struct ctf_fs_component *ctf_fs,
        GList *trace_names = NULL;
        GList *tp_node;
        GList *tn_node;
+       struct metadata_overrides metadata_overrides = {
+               .clock_offset_s = ctf_fs->options.clock_offset,
+               .clock_offset_ns = ctf_fs->options.clock_offset_ns,
+       };
 
        norm_path = bt_common_normalize_path(path_param, NULL);
        if (!norm_path) {
-               PERR("Failed to normalize path: `%s`.\n",
+               BT_LOGE("Failed to normalize path: `%s`.",
                        path_param);
                goto error;
        }
 
-       ret = find_ctf_traces(ctf_fs, &trace_paths, norm_path->str);
+       ret = ctf_fs_find_traces(&trace_paths, norm_path->str);
        if (ret) {
                goto error;
        }
 
        if (!trace_paths) {
-               PERR("No CTF traces recursively found in `%s`.\n",
+               BT_LOGE("No CTF traces recursively found in `%s`.",
                        path_param);
                goto error;
        }
 
-       trace_names = create_trace_names(trace_paths, norm_path->str);
+       trace_names = ctf_fs_create_trace_names(trace_paths, norm_path->str);
        if (!trace_names) {
-               PERR("Cannot create trace names from trace paths.\n");
+               BT_LOGE("Cannot create trace names from trace paths.");
                goto error;
        }
 
@@ -1166,14 +1159,19 @@ int create_ctf_fs_traces(struct ctf_fs_component *ctf_fs,
                GString *trace_path = tp_node->data;
                GString *trace_name = tn_node->data;
 
-               ctf_fs_trace = ctf_fs_trace_create(ctf_fs, trace_path->str,
-                       trace_name->str);
+               ctf_fs_trace = ctf_fs_trace_create(trace_path->str,
+                               trace_name->str, &metadata_overrides);
                if (!ctf_fs_trace) {
-                       PERR("Cannot create trace for `%s`.\n",
+                       BT_LOGE("Cannot create trace for `%s`.",
                                trace_path->str);
                        goto error;
                }
 
+               ret = create_ports_for_trace(ctf_fs, ctf_fs_trace);
+               if (ret) {
+                       goto error;
+               }
+
                g_ptr_array_add(ctf_fs->traces, ctf_fs_trace);
                ctf_fs_trace = NULL;
        }
@@ -1248,8 +1246,7 @@ struct ctf_fs_component *ctf_fs_create(struct bt_private_component *priv_comp,
                int64_t offset;
 
                if (!bt_value_is_integer(value)) {
-                       fprintf(stderr,
-                               "offset-s should be an integer\n");
+                       BT_LOGE("offset-s should be an integer");
                        goto error;
                }
                ret = bt_value_integer_get(value, &offset);
@@ -1263,8 +1260,7 @@ struct ctf_fs_component *ctf_fs_create(struct bt_private_component *priv_comp,
                int64_t offset;
 
                if (!bt_value_is_integer(value)) {
-                       fprintf(stderr,
-                               "offset-ns should be an integer\n");
+                       BT_LOGE("offset-ns should be an integer");
                        goto error;
                }
                ret = bt_value_integer_get(value, &offset);
@@ -1273,8 +1269,6 @@ struct ctf_fs_component *ctf_fs_create(struct bt_private_component *priv_comp,
                BT_PUT(value);
        }
 
-       ctf_fs->error_fp = stderr;
-       ctf_fs->page_size = bt_common_get_page_size();
        ctf_fs->port_data = g_ptr_array_new_with_free_func(port_data_destroy);
        if (!ctf_fs->port_data) {
                goto error;
@@ -1323,125 +1317,14 @@ BT_HIDDEN
 struct bt_value *ctf_fs_query(struct bt_component_class *comp_class,
                const char *object, struct bt_value *params)
 {
-       struct bt_value *results = NULL;
-       struct bt_value *path_value = NULL;
-       char *metadata_text = NULL;
-       FILE *metadata_fp = NULL;
-       GString *g_metadata_text = NULL;
-
-       if (strcmp(object, "metadata-info") == 0) {
-               int ret;
-               int bo;
-               const char *path;
-               bool is_packetized;
-
-               results = bt_value_map_create();
-               if (!results) {
-                       goto error;
-               }
-
-               if (!bt_value_is_map(params)) {
-                       fprintf(stderr,
-                               "Query parameters is not a map value object\n");
-                       goto error;
-               }
-
-               path_value = bt_value_map_get(params, "path");
-               ret = bt_value_string_get(path_value, &path);
-               if (ret) {
-                       fprintf(stderr,
-                               "Cannot get `path` string parameter\n");
-                       goto error;
-               }
-
-               assert(path);
-               metadata_fp = ctf_fs_metadata_open_file(path);
-               if (!metadata_fp) {
-                       fprintf(stderr,
-                               "Cannot open trace at path `%s`\n", path);
-                       goto error;
-               }
+       struct bt_value *result = NULL;
 
-               is_packetized = ctf_metadata_decoder_is_packetized(metadata_fp,
-                       &bo);
-
-               if (is_packetized) {
-                       ret = ctf_metadata_decoder_packetized_file_stream_to_buf(
-                               metadata_fp, &metadata_text, bo);
-                       if (ret) {
-                               fprintf(stderr,
-                                       "Cannot decode packetized metadata file\n");
-                               goto error;
-                       }
-               } else {
-                       long filesize;
-
-                       fseek(metadata_fp, 0, SEEK_END);
-                       filesize = ftell(metadata_fp);
-                       rewind(metadata_fp);
-                       metadata_text = malloc(filesize + 1);
-                       if (!metadata_text) {
-                               fprintf(stderr,
-                                       "Cannot allocate buffer for metadata text\n");
-                               goto error;
-                       }
-
-                       if (fread(metadata_text, filesize, 1, metadata_fp) !=
-                                       1) {
-                               fprintf(stderr,
-                                       "Cannot read metadata file\n");
-                               goto error;
-                       }
-
-                       metadata_text[filesize] = '\0';
-               }
-
-               g_metadata_text = g_string_new(NULL);
-               if (!g_metadata_text) {
-                       goto error;
-               }
-
-               if (strncmp(metadata_text, METADATA_TEXT_SIG,
-                               sizeof(METADATA_TEXT_SIG) - 1) != 0) {
-                       g_string_assign(g_metadata_text, METADATA_TEXT_SIG);
-                       g_string_append(g_metadata_text, " */\n\n");
-               }
-
-               g_string_append(g_metadata_text, metadata_text);
-
-               ret = bt_value_map_insert_string(results, "text",
-                       g_metadata_text->str);
-               if (ret) {
-                       fprintf(stderr, "Cannot insert metadata text into results\n");
-                       goto error;
-               }
-
-               ret = bt_value_map_insert_bool(results, "is-packetized",
-                       is_packetized);
-               if (ret) {
-                       fprintf(stderr, "Cannot insert is packetized into results\n");
-                       goto error;
-               }
+       if (!strcmp(object, "metadata-info")) {
+               result = metadata_info_query(comp_class, params);
        } else {
-               fprintf(stderr, "Unknown query object `%s`\n", object);
-               goto error;
+               BT_LOGE("Unknown query object `%s`", object);
+               goto end;
        }
-
-       goto end;
-
-error:
-       BT_PUT(results);
-
 end:
-       bt_put(path_value);
-       free(metadata_text);
-
-       if (g_metadata_text) {
-               g_string_free(g_metadata_text, TRUE);
-       }
-
-       if (metadata_fp) {
-               fclose(metadata_fp);
-       }
-       return results;
+       return result;
 }
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