69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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* Copyright (c) 2021 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/kernel.h>
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#include <zephyr/shell/shell.h>
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#if CONFIG_SHELL_GETOPT
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#include <zephyr/sys/iterable_sections.h>
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#endif
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#include "getopt.h"
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/* Referring below variables is not thread safe. They reflects getopt state
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* only when 1 thread is using getopt.
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* When more threads are using getopt please call getopt_state_get to know
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* getopt state for the current thread.
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*/
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int opterr = 1; /* if error message should be printed */
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int optind = 1; /* index into parent argv vector */
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int optopt; /* character checked for validity */
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int optreset; /* reset getopt */
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char *optarg; /* argument associated with option */
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/* Common state for all threads that did not have own getopt state. */
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static struct getopt_state m_getopt_common_state = {
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.opterr = 1,
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.optind = 1,
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.optopt = 0,
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.optreset = 0,
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.optarg = NULL,
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.place = "", /* EMSG */
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#if CONFIG_GETOPT_LONG
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.nonopt_start = -1, /* first non option argument (for permute) */
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.nonopt_end = -1, /* first option after non options (for permute) */
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#endif
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};
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/* This function is not thread safe. All threads using getopt are calling
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* this function.
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*/
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void z_getopt_global_state_update(struct getopt_state *state)
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{
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opterr = state->opterr;
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optind = state->optind;
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optopt = state->optopt;
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optreset = state->optreset;
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optarg = state->optarg;
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}
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/* It is internal getopt API function, it shall not be called by the user. */
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struct getopt_state *getopt_state_get(void)
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{
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#if CONFIG_SHELL_GETOPT
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k_tid_t tid;
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tid = k_current_get();
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STRUCT_SECTION_FOREACH(shell, sh) {
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if (tid == sh->ctx->tid) {
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return &sh->ctx->getopt;
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}
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}
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#endif
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/* If not a shell thread return a common pointer */
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return &m_getopt_common_state;
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}
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