vppinfra: add atomic macros for __sync builtins - vpp

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author	Sirshak Das <sirshak.das@arm.com>	2018-10-03 22:53:51 +0000
committer	Damjan Marion <dmarion@me.com>	2018-10-19 07:10:47 +0000
commit	2f6d7bb93c157b874efb79a2d1583a4c368bf89a (patch)
tree	05dc2867c598cbb8d711f074b4b0eb62dd464f41 /src/vlib/unix
parent	bf3443b0f852f5a4c551d12f926defbd047f2161 (diff)

vppinfra: add atomic macros for __sync builtins

This is first part of addition of atomic macros with only macros for __sync builtins. - Based on earlier patch by Damjan (https://gerrit.fd.io/r/#/c/10729/) Additionally - clib_atomic_release macro added and used in the absence of any memory barrier. - clib_atomic_bool_cmp_and_swap added Change-Id: Ie4e48c1e184a652018d1d0d87c4be80ddd180a3b Original-patch-by: Damjan Marion <damarion@cisco.com> Signed-off-by: Sirshak Das <sirshak.das@arm.com> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com> Reviewed-by: Ola Liljedahl <ola.liljedahl@arm.com> Reviewed-by: Steve Capper <steve.capper@arm.com>

Diffstat (limited to 'src/vlib/unix')

-rw-r--r--

src/vlib/unix/cj.c

1 files changed, 1 insertions, 1 deletions

/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * ip/ip_format.c: ip generic (4 or 6) formatting * * Copyright (c) 2008 Eliot Dresselhaus * * 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 <vnet/ip/ip.h> /* Format IP protocol. */ u8 * format_ip_protocol (u8 * s, va_list * args) { ip_protocol_t protocol = va_arg (*args, ip_protocol_t); ip_main_t *im = &ip_main; ip_protocol_info_t *pi = ip_get_protocol_info (im, protocol); if (pi) return format (s, "%s", pi->name); else return format (s, "unknown %d", protocol); } uword unformat_ip_protocol (unformat_input_t * input, va_list * args) { u8 *result = va_arg (*args, u8 *); ip_main_t *im = &ip_main; ip_protocol_info_t *pi; int i; if (!unformat_user (input, unformat_vlib_number_by_name, im->protocol_info_by_name, &i)) return 0; pi = vec_elt_at_index (im->protocol_infos, i); *result = pi->protocol; return 1; } u8 * format_tcp_udp_port (u8 * s, va_list * args) { int port = va_arg (*args, int); ip_main_t *im = &ip_main; tcp_udp_port_info_t *pi; pi = ip_get_tcp_udp_port_info (im, port); if (pi) s = format (s, "%s", pi->name); else s = format (s, "%d", clib_net_to_host_u16 (port)); return s; } uword unformat_tcp_udp_port (unformat_input_t * input, va_list * args) { u16 *result = va_arg (*args, u16 *); ip_main_t *im = &ip_main; tcp_udp_port_info_t *pi; u32 i, port; if (unformat_user (input, unformat_vlib_number_by_name, im->port_info_by_name, &i)) { pi = vec_elt_at_index (im->port_infos, i); port = pi->port; } else if (unformat_user (input, unformat_vlib_number, &port) && port < (1 << 16)) port = clib_host_to_net_u16 (port); else return 0; *result = port; return 1; } /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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