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-rw-r--r--src/vppinfra/std-formats.c330
1 files changed, 330 insertions, 0 deletions
diff --git a/src/vppinfra/std-formats.c b/src/vppinfra/std-formats.c
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+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#include <vppinfra/format.h>
+#include <ctype.h>
+
+/* Format vectors. */
+u8 *
+format_vec32 (u8 * s, va_list * va)
+{
+ u32 *v = va_arg (*va, u32 *);
+ char *fmt = va_arg (*va, char *);
+ uword i;
+ for (i = 0; i < vec_len (v); i++)
+ {
+ if (i > 0)
+ s = format (s, ", ");
+ s = format (s, fmt, v[i]);
+ }
+ return s;
+}
+
+u8 *
+format_vec_uword (u8 * s, va_list * va)
+{
+ uword *v = va_arg (*va, uword *);
+ char *fmt = va_arg (*va, char *);
+ uword i;
+ for (i = 0; i < vec_len (v); i++)
+ {
+ if (i > 0)
+ s = format (s, ", ");
+ s = format (s, fmt, v[i]);
+ }
+ return s;
+}
+
+/* Ascii buffer and length. */
+u8 *
+format_ascii_bytes (u8 * s, va_list * va)
+{
+ u8 *v = va_arg (*va, u8 *);
+ uword n_bytes = va_arg (*va, uword);
+ vec_add (s, v, n_bytes);
+ return s;
+}
+
+/* Format hex dump. */
+u8 *
+format_hex_bytes (u8 * s, va_list * va)
+{
+ u8 *bytes = va_arg (*va, u8 *);
+ int n_bytes = va_arg (*va, int);
+ uword i;
+
+ /* Print short or long form depending on byte count. */
+ uword short_form = n_bytes <= 32;
+ uword indent = format_get_indent (s);
+
+ if (n_bytes == 0)
+ return s;
+
+ for (i = 0; i < n_bytes; i++)
+ {
+ if (!short_form && (i % 32) == 0)
+ s = format (s, "%08x: ", i);
+
+ s = format (s, "%02x", bytes[i]);
+
+ if (!short_form && ((i + 1) % 32) == 0 && (i + 1) < n_bytes)
+ s = format (s, "\n%U", format_white_space, indent);
+ }
+
+ return s;
+}
+
+/* Add variable number of spaces. */
+u8 *
+format_white_space (u8 * s, va_list * va)
+{
+ uword n = va_arg (*va, uword);
+ while (n-- > 0)
+ vec_add1 (s, ' ');
+ return s;
+}
+
+u8 *
+format_time_interval (u8 * s, va_list * args)
+{
+ u8 *fmt = va_arg (*args, u8 *);
+ f64 t = va_arg (*args, f64);
+ u8 *f;
+
+ const f64 seconds_per_minute = 60;
+ const f64 seconds_per_hour = 60 * seconds_per_minute;
+ const f64 seconds_per_day = 24 * seconds_per_hour;
+ uword days, hours, minutes, secs, msecs, usecs;
+
+ days = t / seconds_per_day;
+ t -= days * seconds_per_day;
+
+ hours = t / seconds_per_hour;
+ t -= hours * seconds_per_hour;
+
+ minutes = t / seconds_per_minute;
+ t -= minutes * seconds_per_minute;
+
+ secs = t;
+ t -= secs;
+
+ msecs = 1e3 * t;
+ usecs = 1e6 * t;
+
+ for (f = fmt; *f; f++)
+ {
+ uword what, c;
+ char *what_fmt = "%d";
+
+ switch (c = *f)
+ {
+ default:
+ vec_add1 (s, c);
+ continue;
+
+ case 'd':
+ what = days;
+ what_fmt = "%d";
+ break;
+ case 'h':
+ what = hours;
+ what_fmt = "%02d";
+ break;
+ case 'm':
+ what = minutes;
+ what_fmt = "%02d";
+ break;
+ case 's':
+ what = secs;
+ what_fmt = "%02d";
+ break;
+ case 'f':
+ what = msecs;
+ what_fmt = "%03d";
+ break;
+ case 'u':
+ what = usecs;
+ what_fmt = "%06d";
+ break;
+ }
+
+ s = format (s, what_fmt, what);
+ }
+
+ return s;
+}
+
+/* Unparse memory size e.g. 100, 100k, 100m, 100g. */
+u8 *
+format_memory_size (u8 * s, va_list * va)
+{
+ uword size = va_arg (*va, uword);
+ uword l, u, log_u;
+
+ l = size > 0 ? min_log2 (size) : 0;
+ if (l < 10)
+ log_u = 0;
+ else if (l < 20)
+ log_u = 10;
+ else if (l < 30)
+ log_u = 20;
+ else
+ log_u = 30;
+
+ u = (uword) 1 << log_u;
+ if (size & (u - 1))
+ s = format (s, "%.2f", (f64) size / (f64) u);
+ else
+ s = format (s, "%d", size >> log_u);
+
+ if (log_u != 0)
+ s = format (s, "%c", " kmg"[log_u / 10]);
+
+ return s;
+}
+
+/* Parse memory size e.g. 100, 100k, 100m, 100g. */
+uword
+unformat_memory_size (unformat_input_t * input, va_list * va)
+{
+ uword amount, shift, c;
+ uword *result = va_arg (*va, uword *);
+
+ if (!unformat (input, "%wd%_", &amount))
+ return 0;
+
+ c = unformat_get_input (input);
+ switch (c)
+ {
+ case 'k':
+ case 'K':
+ shift = 10;
+ break;
+ case 'm':
+ case 'M':
+ shift = 20;
+ break;
+ case 'g':
+ case 'G':
+ shift = 30;
+ break;
+ default:
+ shift = 0;
+ unformat_put_input (input);
+ break;
+ }
+
+ *result = amount << shift;
+ return 1;
+}
+
+/* Format c identifier: e.g. a_name -> "a name".
+ Words for both vector names and null terminated c strings. */
+u8 *
+format_c_identifier (u8 * s, va_list * va)
+{
+ u8 *id = va_arg (*va, u8 *);
+ uword i, l;
+
+ l = ~0;
+ if (clib_mem_is_vec (id))
+ l = vec_len (id);
+
+ if (id)
+ for (i = 0; id[i] != 0 && i < l; i++)
+ {
+ u8 c = id[i];
+
+ if (c == '_')
+ c = ' ';
+ vec_add1 (s, c);
+ }
+
+ return s;
+}
+
+u8 *
+format_hexdump (u8 * s, va_list * args)
+{
+ u8 *data = va_arg (*args, u8 *);
+ uword len = va_arg (*args, uword);
+ int i, index = 0;
+ const int line_len = 16;
+ u8 *line_hex = 0;
+ u8 *line_str = 0;
+ uword indent = format_get_indent (s);
+
+ if (!len)
+ return s;
+
+ for (i = 0; i < len; i++)
+ {
+ line_hex = format (line_hex, "%02x ", data[i]);
+ line_str = format (line_str, "%c", isprint (data[i]) ? data[i] : '.');
+ if (!((i + 1) % line_len))
+ {
+ s = format (s, "%U%05x: %v[%v]",
+ format_white_space, index ? indent : 0,
+ index, line_hex, line_str);
+ if (i < len - 1)
+ s = format (s, "\n");
+ index = i + 1;
+ vec_reset_length (line_hex);
+ vec_reset_length (line_str);
+ }
+ }
+
+ while (i++ % line_len)
+ line_hex = format (line_hex, " ");
+
+ if (vec_len (line_hex))
+ s = format (s, "%U%05x: %v[%v]",
+ format_white_space, indent, index, line_hex, line_str);
+
+ vec_free (line_hex);
+ vec_free (line_str);
+
+ return s;
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */