X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=include%2Fbabeltrace%2Ftrace-ir%2Futils-internal.h;fp=include%2Fbabeltrace%2Ftrace-ir%2Futils-internal.h;h=0000000000000000000000000000000000000000;hp=2356d6ab6ba0db810ac9cb50537859277de4dbc8;hb=3fadfbc0c91f82c46bd36e6e0657ea93570c9db1;hpb=7e69c04f557e46fb50e5a888a3bc3451afbd3b8e diff --git a/include/babeltrace/trace-ir/utils-internal.h b/include/babeltrace/trace-ir/utils-internal.h deleted file mode 100644 index 2356d6ab..00000000 --- a/include/babeltrace/trace-ir/utils-internal.h +++ /dev/null @@ -1,175 +0,0 @@ -#ifndef BABELTRACE_TRACE_IR_UTILS_INTERNAL_H -#define BABELTRACE_TRACE_IR_UTILS_INTERNAL_H - -/* - * 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. - */ - -#include -#include -#include -#include - -struct search_query { - gpointer value; - int found; -}; - -static inline -uint64_t bt_util_ns_from_value(uint64_t frequency, uint64_t value_cycles) -{ - uint64_t ns; - - if (frequency == UINT64_C(1000000000)) { - ns = value_cycles; - } else { - double dblres = ((1e9 * (double) value_cycles) / (double) frequency); - - if (dblres >= (double) UINT64_MAX) { - /* Overflows uint64_t */ - ns = UINT64_C(-1); - } else { - ns = (uint64_t) dblres; - } - } - - return ns; -} - -static inline -bool bt_util_get_base_offset_ns(int64_t offset_seconds, uint64_t offset_cycles, - uint64_t frequency, int64_t *base_offset_ns) -{ - bool overflows = false; - uint64_t offset_cycles_ns; - - BT_ASSERT(base_offset_ns); - - /* Initialize nanosecond timestamp to clock's offset in seconds */ - if (offset_seconds <= (INT64_MIN / INT64_C(1000000000) - 1) || - offset_seconds >= (INT64_MAX / INT64_C(1000000000)) - 1) { - /* - * Overflow: offset in seconds converted to nanoseconds - * is outside the int64_t range. We also subtract 1 here - * to leave "space" for the offset in cycles converted - * to nanoseconds (which is always less than 1 second by - * contract). - */ - overflows = true; - goto end; - } - - /* Offset (seconds) to nanoseconds */ - *base_offset_ns = offset_seconds * INT64_C(1000000000); - - /* Add offset in cycles */ - BT_ASSERT(offset_cycles < frequency); - offset_cycles_ns = bt_util_ns_from_value(frequency, - offset_cycles); - BT_ASSERT(offset_cycles_ns < 1000000000); - *base_offset_ns += (int64_t) offset_cycles_ns; - -end: - return overflows; -} - -static inline -int bt_util_ns_from_origin_inline(int64_t base_offset_ns, - int64_t offset_seconds, uint64_t offset_cycles, - uint64_t frequency, uint64_t value, int64_t *ns_from_origin) -{ - int ret = 0; - uint64_t value_ns_unsigned; - int64_t value_ns_signed; - - /* Initialize to clock class's base offset */ - *ns_from_origin = base_offset_ns; - - /* Add given value in cycles */ - value_ns_unsigned = bt_util_ns_from_value(frequency, value); - if (value_ns_unsigned >= (uint64_t) INT64_MAX) { - /* - * FIXME: `value_ns_unsigned` could be greater than - * `INT64_MAX` in fact: in this case, we need to - * subtract `INT64_MAX` from `value_ns_unsigned`, make - * sure that the difference is less than `INT64_MAX`, - * and try to add them one after the other to - * `*ns_from_origin`. - */ - ret = -1; - goto end; - } - - value_ns_signed = (int64_t) value_ns_unsigned; - BT_ASSERT(value_ns_signed >= 0); - - if (*ns_from_origin <= 0) { - goto add_value; - } - - if (value_ns_signed > INT64_MAX - *ns_from_origin) { - ret = -1; - goto end; - } - -add_value: - *ns_from_origin += value_ns_signed; - -end: - return ret; -} - -static inline -int bt_util_ns_from_origin_clock_class(const struct bt_clock_class *clock_class, - uint64_t value, int64_t *ns_from_origin) -{ - int ret = 0; - - if (clock_class->base_offset.overflows) { - ret = -1; - goto end; - } - - ret = bt_util_ns_from_origin_inline(clock_class->base_offset.value_ns, - clock_class->offset_seconds, clock_class->offset_cycles, - clock_class->frequency, value, ns_from_origin); - -end: - return ret; -} - -static inline -bool bt_util_value_is_in_range_signed(uint64_t size, int64_t value) -{ - int64_t min_value = UINT64_C(-1) << (size - 1); - int64_t max_value = (UINT64_C(1) << (size - 1)) - 1; - return value >= min_value && value <= max_value; -} - -static inline -bool bt_util_value_is_in_range_unsigned(unsigned int size, uint64_t value) -{ - uint64_t max_value = (size == 64) ? UINT64_MAX : - (UINT64_C(1) << size) - 1; - return value <= max_value; -} - -#endif /* BABELTRACE_TRACE_IR_UTILS_INTERNAL_H */