X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=lib%2Ftrace-ir%2Fclock-snapshot.c;fp=lib%2Ftrace-ir%2Fclock-snapshot.c;h=0000000000000000000000000000000000000000;hp=050f82ac9428dee6b0c035780607720f605923c4;hb=578e048b5debf169e286e5b5cc747b5d6c16886d;hpb=68b66a256a54d32992dfefeaad11eea88b7df234 diff --git a/lib/trace-ir/clock-snapshot.c b/lib/trace-ir/clock-snapshot.c deleted file mode 100644 index 050f82ac..00000000 --- a/lib/trace-ir/clock-snapshot.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Copyright 2017-2018 Philippe Proulx - * - * 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. - */ - -#define BT_LOG_TAG "CLOCK-SNAPSHOT" -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -BT_HIDDEN -void bt_clock_snapshot_destroy(struct bt_clock_snapshot *clock_snapshot) -{ - BT_LIB_LOGD("Destroying clock snapshot: %!+k", clock_snapshot); - BT_OBJECT_PUT_REF_AND_RESET(clock_snapshot->clock_class); - g_free(clock_snapshot); -} - -BT_HIDDEN -struct bt_clock_snapshot *bt_clock_snapshot_new( - struct bt_clock_class *clock_class) -{ - struct bt_clock_snapshot *ret = NULL; - - BT_ASSERT(clock_class); - BT_LIB_LOGD("Creating clock snapshot object: %![cc-]+K=", - clock_class); - ret = g_new0(struct bt_clock_snapshot, 1); - if (!ret) { - BT_LOGE_STR("Failed to allocate one clock snapshot."); - goto end; - } - - bt_object_init_unique(&ret->base); - ret->clock_class = clock_class; - bt_object_get_no_null_check(clock_class); - bt_clock_class_freeze(clock_class); - BT_LIB_LOGD("Created clock snapshot object: %!+k", ret); - -end: - return ret; -} - -BT_HIDDEN -struct bt_clock_snapshot *bt_clock_snapshot_create( - struct bt_clock_class *clock_class) -{ - struct bt_clock_snapshot *clock_snapshot = NULL; - - BT_ASSERT(clock_class); - clock_snapshot = bt_object_pool_create_object(&clock_class->cs_pool); - if (!clock_snapshot) { - BT_LIB_LOGE("Cannot allocate one clock snapshot from clock class's clock snapshot pool: " - "%![cc-]+K", clock_class); - goto error; - } - - if (likely(!clock_snapshot->clock_class)) { - clock_snapshot->clock_class = clock_class; - bt_object_get_no_null_check(clock_class); - } - - goto end; - -error: - if (clock_snapshot) { - bt_clock_snapshot_recycle(clock_snapshot); - clock_snapshot = NULL; - } - -end: - return clock_snapshot; -} - -BT_HIDDEN -void bt_clock_snapshot_recycle(struct bt_clock_snapshot *clock_snapshot) -{ - struct bt_clock_class *clock_class; - - BT_ASSERT(clock_snapshot); - BT_LIB_LOGD("Recycling clock snapshot: %!+k", clock_snapshot); - - /* - * Those are the important ordered steps: - * - * 1. Reset the clock snapshot object, but do NOT put its clock - * class's reference. This clock class contains the pool to - * which we're about to recycle this clock snapshot object, - * so we must guarantee its existence thanks to this existing - * reference. - * - * 2. Move the clock class reference to our `clock_class` - * variable so that we can set the clock snapshot's clock - * class member to NULL before recycling it. We CANNOT do - * this after we put the clock class reference because this - * bt_object_put_ref() could destroy the clock class, also - * destroying its clock snapshot pool, thus also destroying - * our clock snapshot object (this would result in an invalid - * write access). - * - * 3. Recycle the clock snapshot object. - * - * 4. Put our clock class reference. - */ - bt_clock_snapshot_reset(clock_snapshot); - clock_class = clock_snapshot->clock_class; - BT_ASSERT(clock_class); - clock_snapshot->clock_class = NULL; - bt_object_pool_recycle_object(&clock_class->cs_pool, clock_snapshot); - bt_object_put_ref(clock_class); -} - -uint64_t bt_clock_snapshot_get_value( - const struct bt_clock_snapshot *clock_snapshot) -{ - BT_ASSERT_PRE_NON_NULL(clock_snapshot, "Clock snapshot"); - BT_ASSERT_PRE(clock_snapshot->is_set, - "Clock snapshot is not set: %!+k", clock_snapshot); - return clock_snapshot->value_cycles; -} - -enum bt_clock_snapshot_status bt_clock_snapshot_get_ns_from_origin( - const struct bt_clock_snapshot *clock_snapshot, - int64_t *ret_value_ns) -{ - int ret = BT_CLOCK_SNAPSHOT_STATUS_OK; - - BT_ASSERT_PRE_NON_NULL(clock_snapshot, "Clock snapshot"); - BT_ASSERT_PRE_NON_NULL(ret_value_ns, "Value (ns) (output)"); - BT_ASSERT_PRE(clock_snapshot->is_set, - "Clock snapshot is not set: %!+k", clock_snapshot); - - if (clock_snapshot->ns_from_origin_overflows) { - BT_LIB_LOGD("Clock snapshot, once converted to nanoseconds from origin, " - "overflows the signed 64-bit integer range: " - "%![cs-]+k", clock_snapshot); - ret = BT_CLOCK_SNAPSHOT_STATUS_OVERFLOW; - goto end; - } - - *ret_value_ns = clock_snapshot->ns_from_origin; - -end: - return ret; -} - -const struct bt_clock_class *bt_clock_snapshot_borrow_clock_class_const( - const struct bt_clock_snapshot *clock_snapshot) -{ - BT_ASSERT_PRE_NON_NULL(clock_snapshot, "Clock snapshot"); - return clock_snapshot->clock_class; -}