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libsmartcols/samples/continuous-json.c
77 строк
2 KB
Robin Jarry
treewide: use scols printf api where possible
01 ноя 2024, 02:40
01 ноя 2024, 02:40
1175cf4
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/* * SPDX-License-Identifier: LGPL-2.1-or-later * * Copyright (C) 2016 Karel Zak <kzak@redhat.com> * Copyright (C) 2023 Thomas Weißschuh <thomas@t-8ch.de> */ #include <stdlib.h> #include <unistd.h> #include <string.h> #include <errno.h> #include "c.h" #include "xalloc.h" #include "libsmartcols.h" /* add columns to the @tb */ static void setup_columns(struct libscols_table *tb) { scols_table_enable_maxout(tb, 1); if (!scols_table_new_column(tb, "COUNT", 0.1, SCOLS_FL_RIGHT)) goto fail; if (!scols_table_new_column(tb, "TEXT", 0.9, 0)) goto fail; return; fail: scols_unref_table(tb); err(EXIT_FAILURE, "failed to create output columns"); } static struct libscols_line *add_line(struct libscols_table *tb, int i) { struct libscols_line *ln = scols_table_new_line(tb, NULL); if (!ln) err(EXIT_FAILURE, "failed to create output line"); if (scols_line_sprintf(ln, 0, "%d", i)) goto fail; if (scols_line_sprintf(ln, 1, "text%d", i)) goto fail; return ln; fail: scols_unref_table(tb); err(EXIT_FAILURE, "failed to create output line"); } int main(void) { struct libscols_table *tb; size_t i; scols_init_debug(0); tb = scols_new_table(); if (!tb) err(EXIT_FAILURE, "failed to create output table"); scols_table_enable_json(tb, 1); setup_columns(tb); for (i = 0; i < 10; i++) { struct libscols_line *line; line = add_line(tb, i); /* print the line */ scols_table_print_range(tb, line, NULL); fflush(scols_table_get_stream(tb)); } scols_unref_table(tb); return EXIT_SUCCESS; }