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a80abe2a9a
This factors out a general function perf_parse_sublevel_options() to parse sublevel options. The 'sublevel' options is something like the '--debug' options which allow more sublevel options. Signed-off-by: Changbin Du <changbin.du@gmail.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Link: http://lore.kernel.org/lkml/20200808023141.14227-8-changbin.du@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
70 lines
1 KiB
C
70 lines
1 KiB
C
#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdio.h>
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#include "util/debug.h"
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#include "util/parse-sublevel-options.h"
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static int parse_one_sublevel_option(const char *str,
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struct sublevel_option *opts)
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{
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struct sublevel_option *opt = opts;
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char *vstr, *s = strdup(str);
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int v = 1;
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if (!s) {
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pr_err("no memory\n");
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return -1;
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}
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vstr = strchr(s, '=');
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if (vstr)
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*vstr++ = 0;
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while (opt->name) {
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if (!strcmp(s, opt->name))
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break;
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opt++;
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}
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if (!opt->name) {
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pr_err("Unknown option name '%s'\n", s);
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free(s);
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return -1;
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}
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if (vstr)
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v = atoi(vstr);
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*opt->value_ptr = v;
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free(s);
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return 0;
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}
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/* parse options like --foo a=<n>,b,c... */
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int perf_parse_sublevel_options(const char *str, struct sublevel_option *opts)
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{
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char *s = strdup(str);
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char *p = NULL;
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int ret;
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if (!s) {
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pr_err("no memory\n");
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return -1;
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}
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p = strtok(s, ",");
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while (p) {
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ret = parse_one_sublevel_option(p, opts);
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if (ret) {
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free(s);
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return ret;
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}
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p = strtok(NULL, ",");
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}
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free(s);
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return 0;
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}
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