Clean-up: modernize pretty_xml.cpp

[lttng-tools.git] / src / bin / lttng-relayd / tracefile-array.c

diff --git a/src/bin/lttng-relayd/tracefile-array.c b/src/bin/lttng-relayd/tracefile-array.c
deleted file mode 100644 (file)
index 3d62317..0000000
--- a/src/bin/lttng-relayd/tracefile-array.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (C) 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _LGPL_SOURCE
-#include <assert.h>
-#include <common/common.h>
-#include <common/utils.h>
-#include <common/defaults.h>
-
-#include "tracefile-array.h"
-
-struct tracefile_array *tracefile_array_create(size_t count)
-{
-       struct tracefile_array *tfa = NULL;
-       int i;
-
-       tfa = zmalloc(sizeof(*tfa));
-       if (!tfa) {
-               goto error;
-       }
-       tfa->tf = zmalloc(sizeof(*tfa->tf) * count);
-       if (!tfa->tf) {
-               goto error;
-       }
-       tfa->count = count;
-       for (i = 0; i < count; i++) {
-               tfa->tf[i].seq_head = -1ULL;
-               tfa->tf[i].seq_tail = -1ULL;
-       }
-       tfa->seq_head = -1ULL;
-       tfa->seq_tail = -1ULL;
-       return tfa;
-
-error:
-       if (tfa) {
-               free(tfa->tf);
-       }
-       free(tfa);
-       return NULL;
-}
-
-void tracefile_array_destroy(struct tracefile_array *tfa)
-{
-       if (!tfa) {
-               return;
-       }
-       free(tfa->tf);
-       free(tfa);
-}
-
-void tracefile_array_file_rotate(struct tracefile_array *tfa,
-               enum tracefile_rotate_type type)
-{
-       uint64_t *headp, *tailp;
-
-       if (!tfa->count) {
-               /* Not in tracefile rotation mode. */
-               return;
-       }
-       switch (type) {
-       case TRACEFILE_ROTATE_READ:
-               /*
-                * Rotate read head to write head position, thus allowing
-                * reader to consume the newly rotated head file.
-                */
-               tfa->file_head_read = tfa->file_head_write;
-               break;
-       case TRACEFILE_ROTATE_WRITE:
-               /* Rotate write head to next file, pushing tail if needed.  */
-               tfa->file_head_write = (tfa->file_head_write + 1) % tfa->count;
-               if (tfa->file_head_write == tfa->file_tail) {
-                       /* Move tail. */
-                       tfa->file_tail = (tfa->file_tail + 1) % tfa->count;
-               }
-               headp = &tfa->tf[tfa->file_head_write].seq_head;
-               tailp = &tfa->tf[tfa->file_head_write].seq_tail;
-               /*
-                * If we overwrite a file with content, we need to push the tail
-                * to the position following the content we are overwriting.
-                */
-               if (*headp != -1ULL) {
-                       tfa->seq_tail = tfa->tf[tfa->file_tail].seq_tail;
-               }
-               /* Reset this file head/tail (overwrite). */
-               *headp = -1ULL;
-               *tailp = -1ULL;
-               break;
-       default:
-               abort();
-       }
-}
-
-void tracefile_array_commit_seq(struct tracefile_array *tfa)
-{
-       uint64_t *headp, *tailp;
-
-       /* Increment overall head. */
-       tfa->seq_head++;
-       /* If we are committing our first index overall, set tail to 0. */
-       if (tfa->seq_tail == -1ULL) {
-               tfa->seq_tail = 0;
-       }
-       if (!tfa->count) {
-               /* Not in tracefile rotation mode. */
-               return;
-       }
-       headp = &tfa->tf[tfa->file_head_write].seq_head;
-       tailp = &tfa->tf[tfa->file_head_write].seq_tail;
-       /* Update head tracefile seq_head. */
-       *headp = tfa->seq_head;
-       /*
-        * If we are committing our first index in this packet, set tail
-        * to this index seq count.
-        */
-       if (*tailp == -1ULL) {
-               *tailp = tfa->seq_head;
-       }
-}
-
-uint64_t tracefile_array_get_read_file_index_head(struct tracefile_array *tfa)
-{
-       return tfa->file_head_read;
-}
-
-uint64_t tracefile_array_get_seq_head(struct tracefile_array *tfa)
-{
-       return tfa->seq_head;
-}
-
-uint64_t tracefile_array_get_file_index_tail(struct tracefile_array *tfa)
-{
-       return tfa->file_tail;
-}
-
-uint64_t tracefile_array_get_seq_tail(struct tracefile_array *tfa)
-{
-       return tfa->seq_tail;
-}
-
-bool tracefile_array_seq_in_file(struct tracefile_array *tfa,
-               uint64_t file_index, uint64_t seq)
-{
-       if (!tfa->count) {
-               /*
-                * Not in tracefile rotation mode; we are guaranteed to have the
-                * index in this file.
-                */
-               return true;
-       }
-       assert(file_index < tfa->count);
-       if (seq == -1ULL) {
-               return false;
-       }
-       if (seq >= tfa->tf[file_index].seq_tail
-                       && seq <= tfa->tf[file_index].seq_head) {
-               return true;
-       } else {
-               return false;
-       }
-}