X-Git-Url: https://git.efficios.com/?a=blobdiff_plain;f=lib%2Fcontext.c;h=87901b3c61027aadea02e0ddf0f9aa042b4aaac1;hb=HEAD;hp=3617bcd61447775ebb1313b030f59e7c1249d282;hpb=61cf588beae752e5ddfc60b6b5310f769ac9e852;p=babeltrace.git diff --git a/lib/context.c b/lib/context.c deleted file mode 100644 index 3617bcd6..00000000 --- a/lib/context.c +++ /dev/null @@ -1,267 +0,0 @@ -/* - * context.c - * - * Babeltrace Library - * - * Copyright 2011-2012 EfficiOS Inc. and Linux Foundation - * - * Author: Mathieu Desnoyers - * Julien Desfossez - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include /* For O_RDONLY */ - -#include - -static -void remove_trace_handle(struct bt_trace_handle *handle); - -struct bt_context *bt_context_create(void) -{ - struct bt_context *ctx; - - ctx = g_new0(struct bt_context, 1); - ctx->refcount = 1; - /* Negative handle id are errors. */ - ctx->last_trace_handle_id = 0; - - /* Instanciate the trace handle container */ - ctx->trace_handles = g_hash_table_new_full(g_direct_hash, - g_direct_equal, NULL, - (GDestroyNotify) remove_trace_handle); - - ctx->current_iterator = NULL; - ctx->tc = g_new0(struct trace_collection, 1); - bt_init_trace_collection(ctx->tc); - - return ctx; -} - -int bt_context_add_trace(struct bt_context *ctx, const char *path, - const char *format_name, - void (*packet_seek)(struct bt_stream_pos *pos, size_t index, - int whence), - struct bt_mmap_stream_list *stream_list, - FILE *metadata) -{ - struct bt_trace_descriptor *td; - struct bt_format *fmt; - struct bt_trace_handle *handle; - int ret, closeret; - - if (!ctx || !format_name || (!path && !stream_list)) - return -EINVAL; - - fmt = bt_lookup_format(g_quark_from_string(format_name)); - if (!fmt) { - fprintf(stderr, "[error] [Context] Format \"%s\" unknown.\n\n", - format_name); - ret = -1; - goto end; - } - if (path) { - td = fmt->open_trace(path, O_RDONLY, packet_seek, NULL); - if (!td) { - fprintf(stderr, "[warning] [Context] Cannot open_trace of format %s at path %s.\n", - format_name, path); - ret = -1; - goto end; - } - } else { - td = fmt->open_mmap_trace(stream_list, packet_seek, metadata); - if (!td) { - fprintf(stderr, "[error] [Context] Cannot open_mmap_trace of format %s.\n\n", - format_name); - ret = -1; - goto end; - } - } - - /* Create an handle for the trace */ - handle = bt_trace_handle_create(ctx); - if (!handle) { - fprintf(stderr, "[error] [Context] Creating trace handle %s .\n\n", - path); - ret = -1; - goto error_close; - } - handle->format = fmt; - handle->td = td; - if (path) { - strncpy(handle->path, path, PATH_MAX); - handle->path[PATH_MAX - 1] = '\0'; - } - - ret = bt_trace_collection_add(ctx->tc, td); - if (ret != 0) - goto error_destroy_handle; - - if (fmt->set_handle) - fmt->set_handle(td, handle); - if (fmt->set_context) - fmt->set_context(td, ctx); - - if (fmt->convert_index_timestamp) { - ret = fmt->convert_index_timestamp(td); - if (ret < 0) - goto error_collection_del; - } - - if (fmt->timestamp_begin) { - ret = fmt->timestamp_begin(td, handle, BT_CLOCK_REAL, - &handle->real_timestamp_begin); - if (ret < 0 && ret != -ENOENT) { - ret = -1; - goto error_collection_del; - } - } - if (fmt->timestamp_end) { - ret = fmt->timestamp_end(td, handle, BT_CLOCK_REAL, - &handle->real_timestamp_end); - if (ret < 0 && ret != -ENOENT) { - ret = -1; - goto error_collection_del; - } - } - if (fmt->timestamp_begin) { - ret = fmt->timestamp_begin(td, handle, BT_CLOCK_CYCLES, - &handle->cycles_timestamp_begin); - if (ret < 0 && ret != -ENOENT) { - ret = -1; - goto error_collection_del; - } - } - if (fmt->timestamp_end) { - ret = fmt->timestamp_end(td, handle, BT_CLOCK_CYCLES, - &handle->cycles_timestamp_end); - if (ret < 0 && ret != -ENOENT) { - ret = -1; - goto error_collection_del; - } - } - - /* Add new handle to container */ - g_hash_table_insert(ctx->trace_handles, - (gpointer) (unsigned long) handle->id, - handle); - - return handle->id; - -error_collection_del: - /* Remove from containers */ - bt_trace_collection_remove(handle->td->ctx->tc, handle->td); -error_destroy_handle: - bt_trace_handle_destroy(handle); -error_close: - closeret = fmt->close_trace(td); - if (closeret) { - fprintf(stderr, "Error in close_trace callback\n"); - } -end: - return ret; -} - -int bt_context_remove_trace(struct bt_context *ctx, int handle_id) -{ - int ret = 0; - - if (!ctx) { - ret = -EINVAL; - goto end; - } - - /* - * Remove the handle. remove_trace_handle will be called - * automatically. - */ - if (!g_hash_table_remove(ctx->trace_handles, - (gpointer) (unsigned long) handle_id)) { - ret = -ENOENT; - goto end; - } -end: - return ret; -} - -static -void bt_context_destroy(struct bt_context *ctx) -{ - assert(ctx); - - /* - * Remove all traces. The g_hash_table_destroy will call - * remove_trace_handle on each element. - */ - g_hash_table_destroy(ctx->trace_handles); - - bt_finalize_trace_collection(ctx->tc); - - /* ctx->tc should always be valid */ - assert(ctx->tc != NULL); - g_free(ctx->tc); - g_free(ctx); -} - -void bt_context_get(struct bt_context *ctx) -{ - assert(ctx); - ctx->refcount++; -} - -void bt_context_put(struct bt_context *ctx) -{ - assert(ctx); - ctx->refcount--; - if (ctx->refcount == 0) - bt_context_destroy(ctx); -} - -static -void remove_trace_handle(struct bt_trace_handle *handle) -{ - int ret; - - if (!handle->td->ctx) - return; - /* Remove from containers */ - bt_trace_collection_remove(handle->td->ctx->tc, handle->td); - /* Close the trace */ - ret = handle->format->close_trace(handle->td); - if (ret) { - fprintf(stderr, "Error in close_trace callback\n"); - } - - bt_trace_handle_destroy(handle); -}