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tests: put common/replicated functions into a single file
The scan function was copied/pasted in each utility, this moves it to a a seperate c file, which is built as a library, which then every utility statically links to, saving maintainance, and build time. Signed-off-by: Robin Getz <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| /* | ||
| * iio_common - Common functions used in the IIO utilities | ||
| * | ||
| * Copyright (C) 2014-2020 Analog Devices, Inc. | ||
| * Author: Paul Cercueil | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation; either version 2 | ||
| * of the License, or (at your option) any later version. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | ||
| * */ | ||
|
|
||
| #include <iio.h> | ||
| #include <stdio.h> | ||
|
|
||
| #include "iio_common.h" | ||
| #include "gen_code.h" | ||
|
|
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| void * xmalloc(size_t n, const char * name) | ||
| { | ||
| void *p = malloc(n); | ||
|
|
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| if (!p && n != 0) { | ||
| fprintf(stderr, "%s fatal error: allocating %zu bytes failed\n", | ||
| name, n); | ||
| exit(EXIT_FAILURE); | ||
| } | ||
|
|
||
| return p; | ||
| } | ||
|
|
||
| struct iio_context * autodetect_context(bool rtn, bool gen_code, const char * name) | ||
| { | ||
| struct iio_scan_context *scan_ctx; | ||
| struct iio_context_info **info; | ||
| struct iio_context *ctx = NULL; | ||
| unsigned int i; | ||
| ssize_t ret; | ||
| FILE *out; | ||
|
|
||
| scan_ctx = iio_create_scan_context(NULL, 0); | ||
| if (!scan_ctx) { | ||
| fprintf(stderr, "Unable to create scan context\n"); | ||
| return NULL; | ||
| } | ||
|
|
||
| ret = iio_scan_context_get_info_list(scan_ctx, &info); | ||
| if (ret < 0) { | ||
| char *err_str = xmalloc(BUF_SIZE, name); | ||
| iio_strerror(-ret, err_str, BUF_SIZE); | ||
| fprintf(stderr, "Scanning for IIO contexts failed: %s\n", err_str); | ||
| free (err_str); | ||
| goto err_free_ctx; | ||
| } | ||
|
|
||
| if (ret == 0) { | ||
| printf("No IIO context found.\n"); | ||
| goto err_free_info_list; | ||
| } | ||
| if (!rtn && ret == 1) { | ||
| printf("Using auto-detected IIO context at URI \"%s\"\n", | ||
| iio_context_info_get_uri(info[0])); | ||
| ctx = iio_create_context_from_uri(iio_context_info_get_uri(info[0])); | ||
| if (gen_code) | ||
| gen_context(iio_context_info_get_uri(info[0])); | ||
| } else { | ||
| if (rtn) { | ||
| out = stderr; | ||
| fprintf(out, "Multiple contexts found. Please select one using --uri:\n"); | ||
| } else { | ||
| out = stdout; | ||
| fprintf(out, "Available contexts:\n"); | ||
| } | ||
| for (i = 0; i < (size_t) ret; i++) { | ||
| fprintf(out, "\t%u: %s [%s]\n", | ||
| i, iio_context_info_get_description(info[i]), | ||
| iio_context_info_get_uri(info[i])); | ||
| } | ||
| } | ||
|
|
||
| err_free_info_list: | ||
| iio_context_info_list_free(info); | ||
| err_free_ctx: | ||
| iio_scan_context_destroy(scan_ctx); | ||
|
|
||
| return ctx; | ||
| } | ||
|
|
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