app/testeventdev: add string parsing helpers
Add a couple of help functions that will allow parsing many types of input parameters, i.e.: bool, 16, 32, 64 bits, hex and list of cores etc. Derived from examples/ip_pipeline/parser.h Signed-off-by: Guduri Prathyusha <gprathyusha@caviumnetworks.com> Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
This commit is contained in:
Guduri Prathyusha
Jerin Jacob
parent
ccda04998a
commit
89e5eb1180
@ -40,5 +40,6 @@ CFLAGS += $(WERROR_FLAGS)
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#
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SRCS-y := evt_main.c
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SRCS-y += evt_test.c
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SRCS-y += parser.c
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include $(RTE_SDK)/mk/rte.app.mk
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388
app/test-eventdev/parser.c
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388
app/test-eventdev/parser.c
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@ -0,0 +1,388 @@
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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* Copyright(c) 2017 Cavium Networks Ltd. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <getopt.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <string.h>
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#include <libgen.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#include <stdbool.h>
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#include <rte_errno.h>
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#include <rte_string_fns.h>
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#include "parser.h"
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static uint32_t
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get_hex_val(char c)
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{
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switch (c) {
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case '0': case '1': case '2': case '3': case '4': case '5':
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case '6': case '7': case '8': case '9':
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return c - '0';
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case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
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return c - 'A' + 10;
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case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
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return c - 'a' + 10;
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default:
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return 0;
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}
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}
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int
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parser_read_arg_bool(const char *p)
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{
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p = skip_white_spaces(p);
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int result = -EINVAL;
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if (((p[0] == 'y') && (p[1] == 'e') && (p[2] == 's')) ||
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((p[0] == 'Y') && (p[1] == 'E') && (p[2] == 'S'))) {
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p += 3;
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result = 1;
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}
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if (((p[0] == 'o') && (p[1] == 'n')) ||
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((p[0] == 'O') && (p[1] == 'N'))) {
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p += 2;
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result = 1;
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}
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if (((p[0] == 'n') && (p[1] == 'o')) ||
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((p[0] == 'N') && (p[1] == 'O'))) {
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p += 2;
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result = 0;
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}
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if (((p[0] == 'o') && (p[1] == 'f') && (p[2] == 'f')) ||
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((p[0] == 'O') && (p[1] == 'F') && (p[2] == 'F'))) {
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p += 3;
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result = 0;
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}
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p = skip_white_spaces(p);
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if (p[0] != '\0')
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return -EINVAL;
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return result;
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}
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int
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parser_read_uint64(uint64_t *value, const char *p)
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{
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char *next;
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uint64_t val;
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p = skip_white_spaces(p);
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if (!isdigit(*p))
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return -EINVAL;
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val = strtoul(p, &next, 10);
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if (p == next)
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return -EINVAL;
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p = next;
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switch (*p) {
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case 'T':
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val *= 1024ULL;
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/* fall through */
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case 'G':
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val *= 1024ULL;
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/* fall through */
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case 'M':
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val *= 1024ULL;
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/* fall through */
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case 'k':
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case 'K':
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val *= 1024ULL;
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p++;
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break;
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}
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p = skip_white_spaces(p);
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if (*p != '\0')
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return -EINVAL;
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*value = val;
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return 0;
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}
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int
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parser_read_int32(int32_t *value, const char *p)
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{
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char *next;
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int32_t val;
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p = skip_white_spaces(p);
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if (!isdigit(*p))
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return -EINVAL;
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val = strtol(p, &next, 10);
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if (p == next)
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return -EINVAL;
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*value = val;
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return 0;
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}
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int
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parser_read_uint64_hex(uint64_t *value, const char *p)
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{
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char *next;
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uint64_t val;
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p = skip_white_spaces(p);
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val = strtoul(p, &next, 16);
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if (p == next)
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return -EINVAL;
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p = skip_white_spaces(next);
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if (*p != '\0')
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return -EINVAL;
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*value = val;
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return 0;
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}
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int
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parser_read_uint32(uint32_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT32_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parser_read_uint32_hex(uint32_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64_hex(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT32_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parser_read_uint16(uint16_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT16_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parser_read_uint16_hex(uint16_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64_hex(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT16_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parser_read_uint8(uint8_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT8_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parser_read_uint8_hex(uint8_t *value, const char *p)
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{
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uint64_t val = 0;
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int ret = parser_read_uint64_hex(&val, p);
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if (ret < 0)
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return ret;
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if (val > UINT8_MAX)
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return -ERANGE;
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*value = val;
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return 0;
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}
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int
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parse_tokenize_string(char *string, char *tokens[], uint32_t *n_tokens)
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{
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uint32_t i;
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if ((string == NULL) ||
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(tokens == NULL) ||
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(*n_tokens < 1))
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return -EINVAL;
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for (i = 0; i < *n_tokens; i++) {
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tokens[i] = strtok_r(string, PARSE_DELIMITER, &string);
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if (tokens[i] == NULL)
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break;
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}
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if ((i == *n_tokens) &&
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(strtok_r(string, PARSE_DELIMITER, &string) != NULL))
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return -E2BIG;
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*n_tokens = i;
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return 0;
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}
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int
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parse_hex_string(char *src, uint8_t *dst, uint32_t *size)
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{
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char *c;
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uint32_t len, i;
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/* Check input parameters */
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if ((src == NULL) ||
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(dst == NULL) ||
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(size == NULL) ||
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(*size == 0))
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return -1;
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len = strlen(src);
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if (((len & 3) != 0) ||
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(len > (*size) * 2))
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return -1;
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*size = len / 2;
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for (c = src; *c != 0; c++) {
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if ((((*c) >= '0') && ((*c) <= '9')) ||
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(((*c) >= 'A') && ((*c) <= 'F')) ||
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(((*c) >= 'a') && ((*c) <= 'f')))
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continue;
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return -1;
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}
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/* Convert chars to bytes */
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for (i = 0; i < *size; i++)
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dst[i] = get_hex_val(src[2 * i]) * 16 +
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get_hex_val(src[2 * i + 1]);
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return 0;
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}
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int
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parse_lcores_list(bool lcores[], const char *corelist)
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{
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int i, idx = 0;
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int min, max;
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char *end = NULL;
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if (corelist == NULL)
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return -1;
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while (isblank(*corelist))
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corelist++;
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i = strlen(corelist);
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while ((i > 0) && isblank(corelist[i - 1]))
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i--;
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/* Get list of lcores */
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min = RTE_MAX_LCORE;
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do {
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while (isblank(*corelist))
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corelist++;
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if (*corelist == '\0')
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return -1;
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idx = strtoul(corelist, &end, 10);
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if (end == NULL)
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return -1;
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while (isblank(*end))
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end++;
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if (*end == '-') {
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min = idx;
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} else if ((*end == ',') || (*end == '\0')) {
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max = idx;
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if (min == RTE_MAX_LCORE)
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min = idx;
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for (idx = min; idx <= max; idx++) {
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if (lcores[idx] == 1)
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return -E2BIG;
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lcores[idx] = 1;
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}
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min = RTE_MAX_LCORE;
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} else
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return -1;
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corelist = end + 1;
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} while (*end != '\0');
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return 0;
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}
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79
app/test-eventdev/parser.h
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79
app/test-eventdev/parser.h
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@ -0,0 +1,79 @@
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCLUDE_PARSER_H__
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#define __INCLUDE_PARSER_H__
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#include <stdint.h>
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#define PARSE_DELIMITER " \f\n\r\t\v"
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#define skip_white_spaces(pos) \
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({ \
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__typeof__(pos) _p = (pos); \
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for ( ; isspace(*_p); _p++) \
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; \
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_p; \
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})
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static inline size_t
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skip_digits(const char *src)
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{
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size_t i;
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for (i = 0; isdigit(src[i]); i++)
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;
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return i;
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}
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int parser_read_arg_bool(const char *p);
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int parser_read_uint64(uint64_t *value, const char *p);
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int parser_read_uint32(uint32_t *value, const char *p);
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int parser_read_uint16(uint16_t *value, const char *p);
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int parser_read_uint8(uint8_t *value, const char *p);
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int parser_read_uint64_hex(uint64_t *value, const char *p);
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int parser_read_uint32_hex(uint32_t *value, const char *p);
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int parser_read_uint16_hex(uint16_t *value, const char *p);
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int parser_read_uint8_hex(uint8_t *value, const char *p);
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int parser_read_int32(int32_t *value, const char *p);
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int parse_hex_string(char *src, uint8_t *dst, uint32_t *size);
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int parse_tokenize_string(char *string, char *tokens[], uint32_t *n_tokens);
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int parse_lcores_list(bool lcores[], const char *corelist);
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#endif
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